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  Simplicity 990120 Wonderboy, 4Hp Mower Parts
Simplicity Wonderboy, 4Hp Replacement For Model 990120

Simplicity Wonderboy, 4Hp Replacement Parts For Model 990120

We Sell Only Genuine Simplicity Parts

Questions & Answers for Simplicity 990120

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Control Linkage And Power Take-Off
Differential Assembly
Front Axle And Front Support
Power Take-Off And Engine Pulley
Seat Hood And Drawbar Assembly
Transmission Assembly
Showing All Parts
Control Linkage And Power Take-Off
Simplicity 990120 Wonderboy, 4Hp Mower Control Linkage And Power Take-Off Diagram
 Fig #
A
Cotter Pin 3/32" X 5/8" Obsolete - Not Available
 $2.99

Part Number:2722016

Discontinued

Discontinued
 $2.99
Discontinued
B
Rod. Front Clutch Assembly Obsolete - Not Available
 $2.99

Part Number:121030

Discontinued

Discontinued
 $2.99
Discontinued
C
Spring, Idler Rod Obsolete - Not Available
 $2.99

Part Number:S2A45

Discontinued

Discontinued
 $2.99
Discontinued
D
Washer, Plain, 5/16" Obsolete - Not Available
 $2.99

Part Number:2719002

Discontinued

Discontinued
 $2.99
Discontinued
E
Spring, Stand Obsolete - Not Available
 $8.62

Part Number:2152006SM

Discontinued

Discontinued
 $8.62
Discontinued
F
Screw, Set, Square Head, Cup Point, 1/4"-20 Nc X 3/8" Lg Obsolete - Not Available
 $2.99

Part Number:2713001

Discontinued

Discontinued
 $2.99
Discontinued
G
Collar Set Obsolete - Not Available
 $2.99

Part Number:S2A22A

Discontinued

Discontinued
 $2.99
Discontinued
H
Rod, Rear Clutch Obsolete - Not Available
 $2.99

Part Number:121033

Discontinued

Discontinued
 $2.99
Discontinued
J
Cotter Pin 3/32" X 5/8" Obsolete - Not Available
 $2.99

Part Number:2722016

Discontinued

Discontinued
 $2.99
Discontinued
K
Nut, Hex, Full, 3/8"-16 Nc Obsolete - Not Available
 $2.99

Part Number:2717003

Discontinued

Discontinued
 $2.99
Discontinued
L
Washer, Lock, 3/8" Obsolete - Not Available
 $2.99

Part Number:2720002

Discontinued

Discontinued
 $2.99
Discontinued
M
Washer, Plain, 3/8" Obsolete - Not Available
 $2.99

Part Number:2719001

Discontinued

Discontinued
 $2.99
Discontinued
N
Lever Assembly Idler Obsolete - Not Available
 $2.99

Part Number:121034

Discontinued

Discontinued
 $2.99
Discontinued
P
Spacer Obsolete - Not Available
 $2.99

Part Number:GA58

Discontinued

Discontinued
 $2.99
Discontinued
Q
Stop Lever Obsolete - Not Available
 $2.99

Part Number:121038

Discontinued

Discontinued
 $2.99
Discontinued
R
Pin, Lock Obsolete - Not Available
 $2.99

Part Number:121044

Discontinued

Discontinued
 $2.99
Discontinued
S
Guide Belt Obsolete - Not Available
 $2.99

Part Number:121135

Discontinued

Discontinued
 $2.99
Discontinued
T
Hex Capscrew, 3/8"-16 X 2-3/4" Lg. Obsolete - Not Available
 $2.99

Part Number:2705028

Discontinued

Discontinued
 $2.99
Discontinued
U
Spring Obsolete - Not Available
 $6.17

Part Number:2121037SM

Discontinued

Discontinued
 $6.17
Discontinued
V
Pulley Idler Obsolete - Not Available
 $2.99

Part Number:S1-AX21

Discontinued

Discontinued
 $2.99
Discontinued
W
Inner Bearing, Race Obsolete - Not Available
 $2.99

Part Number:S2A20

Discontinued

Discontinued
 $2.99
Discontinued
X
Washer, Plain, 3/8" Obsolete - Not Available
 $2.99

Part Number:2719001

Discontinued

Discontinued
 $2.99
Discontinued
Y
Screw, Cap, Hex., 3/8"-16 N.C. X 2" Lg. Obsolete - Not Available
 $2.99

Part Number:2705006

Discontinued

Discontinued
 $2.99
Discontinued
Z
Washer, Plain, 3/8" Obsolete - Not Available
 $2.99

Part Number:2719001

Discontinued

Discontinued
 $2.99
Discontinued
AA
Hex. Cap Screw, 3/8"-16 X 3/4" Obsolete - Not Available
 $2.99

Part Number:2705004

Discontinued

Discontinued
 $2.99
Discontinued
AB
Nut, Lock, Full Hex, 3/8"-16 Nc Obsolete - Not Available
 $2.99

Part Number:2717510

Discontinued

Discontinued
 $2.99
Discontinued
AC
Knob Obsolete - Not Available
 $2.99

Part Number:DA50

Discontinued

Discontinued
 $2.99
Discontinued
AD
Spring, Idler Rod Obsolete - Not Available
 $2.99

Part Number:S2A45

Discontinued

Discontinued
 $2.99
Discontinued
AE
Screw, Set, Square Head, Cup Point, 1/4"-20 Nc X 3/8" Lg Obsolete - Not Available
 $2.99

Part Number:2713001

Discontinued

Discontinued
 $2.99
Discontinued
AF
Collar Set Obsolete - Not Available
 $2.99

Part Number:S2A22A

Discontinued

Discontinued
 $2.99
Discontinued
AG
Rod, Clutch Obsolete - Not Available
 $2.99

Part Number:121052

Discontinued

Discontinued
 $2.99
Discontinued
AH
Cotter Pin 3/32" X 5/8" Obsolete - Not Available
 $2.99

Part Number:2722016

Discontinued

Discontinued
 $2.99
Discontinued
AJ
Nut, Lock, Full Hex, 3/8"-16 Nc Obsolete - Not Available
 $2.99

Part Number:2717510

Discontinued

Discontinued
 $2.99
Discontinued
AK
Lever Obsolete - Not Available
 $2.99

Part Number:121053

Discontinued

Discontinued
 $2.99
Discontinued
AL
Guide Assembly Obsolete - Not Available
 $2.99

Part Number:GSAX3

Discontinued

Discontinued
 $2.99
Discontinued
AM
Capscrew, Hex Head, 3/8"-16 Nc X 1" Lg Obsolete - Not Available
 $2.99

Part Number:2705005

Discontinued

Discontinued
 $2.99
Discontinued
Differential Assembly
Simplicity 990120 Wonderboy, 4Hp Mower Differential Assembly class=
 Fig #
A
Ring, Retaining Obsolete - Not Available
 $2.99

Part Number:R-A63

Discontinued

Discontinued
 $2.99
Discontinued
B
Bearing
 $30.20

Part Number:2153068SM

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $30.20
Usually ships in 7 - 12 business days
 $30.20
C
Hub, Wheel. R.H. Obsolete - Not Available
 $2.99

Part Number:121088

Discontinued

Discontinued
 $2.99
Discontinued
D
Roll Pin 7/32-In Dia. X 1-In Lg. Obsolete - Not Available
 $2.99

Part Number:2723002

Discontinued

Discontinued
 $2.99
Discontinued
E
Seal, Differential Cover Obsolete - Not Available
 $15.62

Part Number:2121190SM

Discontinued

Discontinued
 $15.62
Discontinued
F
Cover, Differential Obsolete - Not Available
 $2.99

Part Number:121154

Discontinued

Discontinued
 $2.99
Discontinued
G
Nut, Lock, Full Hex, 3/8"-16 Nc Obsolete - Not Available
 $2.99

Part Number:2717510

Discontinued

Discontinued
 $2.99
Discontinued
H
Pinion, Differential Obsolete - Not Available
 $2.99

Part Number:121082

Discontinued

Discontinued
 $2.99
Discontinued
J
Spacer, Differential
 $13.58

Part Number:2121084SM

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $13.58
Usually ships in 7 - 12 business days
 $13.58
K
Spindle, Pinion Differential
 $14.29

Part Number:2121083SM

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $14.29
Usually ships in 7 - 12 business days
 $14.29
L
Gear, Differential Obsolete - Not Available
 $2.99

Part Number:121087

Discontinued

Discontinued
 $2.99
Discontinued
M
Washer Obsolete - Not Available
 $2.99

Part Number:153088

Discontinued

Discontinued
 $2.99
Discontinued
N
Washer, Axle Obsolete - Not Available
 $2.99

Part Number:153077

Discontinued

Discontinued
 $2.99
Discontinued
P
Gear, Differential Obsolete - Not Available
 $2.99

Part Number:121086

Discontinued

Discontinued
 $2.99
Discontinued
Q
Carrier Assembly Obsolete - Not Available
 $2.99

Part Number:121152

Discontinued

Discontinued
 $2.99
Discontinued
R
Fitting, Grease Obsolete - Not Available
 $2.99

Part Number:2727002

Discontinued

Discontinued
 $2.99
Discontinued
S
Plate, Thrust Obsolete - Not Available
 $2.99

Part Number:121185

Discontinued

Discontinued
 $2.99
Discontinued
T
Key, Hi-Pro Hp608 Obsolete - Not Available
 $2.99

Part Number:725S01

Discontinued

Discontinued
 $2.99
Discontinued
U
Bearing
 $30.20

Part Number:2153068SM

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $30.20
Usually ships in 7 - 12 business days
 $30.20
V
Lockwasher, External Shakeproof Obsolete - Not Available
 $2.99

Part Number:2721004

Discontinued

Discontinued
 $2.99
Discontinued
W
Spider Assembly Obsolete - Not Available
 $2.99

Part Number:121164

Discontinued

Discontinued
 $2.99
Discontinued
X
Spacer, Pinion Obsolete - Not Available
 $2.99

Part Number:121163

Discontinued

Discontinued
 $2.99
Discontinued
Y
Pinion Obsolete - Not Available
 $2.99

Part Number:121118

Discontinued

Discontinued
 $2.99
Discontinued
Z
Bolt, Hex Head Obsolete - Not Available
 $2.99

Part Number:2121184

Discontinued

Discontinued
 $2.99
Discontinued
AA
Ring, Snap Obsolete - Not Available
 $2.99

Part Number:121167

Discontinued

Discontinued
 $2.99
Discontinued
AB
Ring, Bolt Obsolete - Not Available
 $2.99

Part Number:121162

Discontinued

Discontinued
 $2.99
Discontinued
AC
Gear, Ring Obsolete - Not Available
 $2.99

Part Number:121151

Discontinued

Discontinued
 $2.99
Discontinued
AD
Cover Assembly Obsolete - Not Available
 $2.99

Part Number:121148

Discontinued

Discontinued
 $2.99
Discontinued
AE
Seal, Housing Assembly Obsolete - Not Available
 $2.99

Part Number:121186

Discontinued

Discontinued
 $2.99
Discontinued
AF
Housing Assembly Obsolete - Not Available
 $2.99

Part Number:121146

Discontinued

Discontinued
 $2.99
Discontinued
AG
Gear Assembly, Sun Obsolete - Not Available
 $2.99

Part Number:121187

Discontinued

Discontinued
 $2.99
Discontinued
AH
Block, Shift Obsolete - Not Available
 $2.99

Part Number:121169

Discontinued

Discontinued
 $2.99
Discontinued
AJ
Clevis Assembly Obsolete - Not Available
 $2.99

Part Number:121172

Discontinued

Discontinued
 $2.99
Discontinued
AK
Knob
 $15.82

Part Number:2122005SM

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $15.82
Usually ships in 7 - 12 business days
 $15.82
AL
Reverse Rod Guide Obsolete - Not Available
 $2.99

Part Number:153074

Discontinued

Discontinued
 $2.99
Discontinued
AM
Liner
 $8.50

Part Number:2121175SM

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $8.50
Usually ships in 7 - 12 business days
 $8.50
Front Axle And Front Support
Simplicity 990120 Wonderboy, 4Hp Mower Front Axle And Front Support class=
 Fig #
A
Frame Assembly, Front Obsolete - Not Available
 $2.99

Part Number:121024

Discontinued

Discontinued
 $2.99
Discontinued
B
Handle Grip Obsolete - Not Available
 $2.99

Part Number:2153043

Discontinued

Discontinued
 $2.99
Discontinued
C
Handle Assembly Obsolete - Not Available
 $2.99

Part Number:121018

Discontinued

Discontinued
 $2.99
Discontinued
D
Screw, Hex Hd. Cap, 3/8-16 X 3
 $9.49

Part Number:705029

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $9.49
Usually ships in 7 - 12 business days
 $9.49
E
Nut, Lock, Full Hex, 3/8"-16 Nc Obsolete - Not Available
 $2.99

Part Number:2717510

Discontinued

Discontinued
 $2.99
Discontinued
F
Nut, Hex, Full, 3/8"-16 Nc Obsolete - Not Available
 $2.99

Part Number:2717003

Discontinued

Discontinued
 $2.99
Discontinued
G
Washer, Lock, 3/8" Obsolete - Not Available
 $2.99

Part Number:2720002

Discontinued

Discontinued
 $2.99
Discontinued
H
Pivot Assembly Steering Obsolete - Not Available
 $2.99

Part Number:121021

Discontinued

Discontinued
 $2.99
Discontinued
J
Roll Pin 7/32-In Dia. X 1-In Lg. Obsolete - Not Available
 $2.99

Part Number:2723002

Discontinued

Discontinued
 $2.99
Discontinued
K
Screw, Hex Hd. Cap, 3/8-16 X 3
 $9.49

Part Number:705029

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $9.49
Usually ships in 7 - 12 business days
 $9.49
L
Support, Front, R.H. Obsolete - Not Available
 $2.99

Part Number:121015

Discontinued

Discontinued
 $2.99
Discontinued
M
Support, Front, L.H. Obsolete - Not Available
 $2.99

Part Number:121014

Discontinued

Discontinued
 $2.99
Discontinued
N
Washer, Lock, 3/8" Obsolete - Not Available
 $2.99

Part Number:2720002

Discontinued

Discontinued
 $2.99
Discontinued
P
Phillips Truss Head Screw, No. 10-32 X 1/2" Obsolete - Not Available
 $2.99

Part Number:2711003

Discontinued

Discontinued
 $2.99
Discontinued
Q
Pin, Roll, 5/16 X 1 1/4 Obsolete - Not Available
 $2.99

Part Number:2723001

Discontinued

Discontinued
 $2.99
Discontinued
R
Spring, Torsion
 $54.73

Part Number:2121011SM

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $54.73
Usually ships in 7 - 12 business days
 $54.73
S
Axle Assembly Front Obsolete - Not Available
 $2.99

Part Number:121001

Discontinued

Discontinued
 $2.99
Discontinued
T
Pin Pivot Obsolete - Not Available
 $2.99

Part Number:121016

Discontinued

Discontinued
 $2.99
Discontinued
U
Joint Ball Obsolete - Not Available
 $2.99

Part Number:121127

Discontinued

Discontinued
 $2.99
Discontinued
V
Rod, Tie Obsolete - Not Available
 $2.99

Part Number:121013

Discontinued

Discontinued
 $2.99
Discontinued
W
Nut, Hex, Full, 3/8"-24 Nf Obsolete - Not Available
 $2.99

Part Number:717010

Discontinued

Discontinued
 $2.99
Discontinued
X
Arm, Lever Obsolete - Not Available
 $2.99

Part Number:121017

Discontinued

Discontinued
 $2.99
Discontinued
Y
Screw, Cap, Hex., 3/8"-16 N.C. X 7/8" Lg. Obsolete - Not Available
 $2.99

Part Number:2705031

Discontinued

Discontinued
 $2.99
Discontinued
Z
Washer, Lock, 3/8" Obsolete - Not Available
 $2.99

Part Number:2720002

Discontinued

Discontinued
 $2.99
Discontinued
AA
Hub Cap, Front Obsolete - Not Available
 $2.99

Part Number:121136

Discontinued

Discontinued
 $2.99
Discontinued
AB
Wheel, Front, W/Tire Obsolete - Not Available
 $2.99

Part Number:121012

Discontinued

Discontinued
 $2.99
Discontinued
AC
Screw, Self Topping #10 X 1/2" Lg. Obsolete - Not Available
 $2.99

Part Number:2714003

Discontinued

Discontinued
 $2.99
Discontinued
AD
Pin, Cotter, 5/32 X 1 1/4" Obsolete - Not Available
 $2.99

Part Number:722014

Discontinued

Discontinued
 $2.99
Discontinued
AE
Washer Obsolete - Not Available
 $2.99

Part Number:G-A12

Discontinued

Discontinued
 $2.99
Discontinued
AF
Spindle Assembly, R.H. Obsolete - Not Available
 $2.99

Part Number:121007

Discontinued

Discontinued
 $2.99
Discontinued
AG
Cotter Pin, 5/32" X 1" Lg. Obsolete - Not Available
 $2.99

Part Number:722015

Discontinued

Discontinued
 $2.99
Discontinued
AH
Spindle Assembly, L.H. Obsolete - Not Available
 $2.99

Part Number:121010

Discontinued

Discontinued
 $2.99
Discontinued
AJ
Screw, Round Head, Self Tapping, No. 10-24 X 1/2" Lg Obsolete - Not Available
 $2.99

Part Number:714005

Discontinued

Discontinued
 $2.99
Discontinued
AK
Throttle Lever Control Obsolete - Not Available
 $2.99

Part Number:118044

Discontinued

Discontinued
 $2.99
Discontinued
AL
Throttle Wire Obsolete - Not Available
 $2.99

Part Number:121077

Discontinued

Discontinued
 $2.99
Discontinued
AM
Throttle Cable Obsolete - Not Available
 $2.99

Part Number:121076

Discontinued

Discontinued
 $2.99
Discontinued
AN
Spring, Throttle Wire Obsolete - Not Available
 $2.99

Part Number:121122

Discontinued

Discontinued
 $2.99
Discontinued
AQ
Clamp Cable Obsolete - Not Available
 $2.99

Part Number:3851

Discontinued

Discontinued
 $2.99
Discontinued
AR
Spacer Obsolete - Not Available
 $2.99

Part Number:3834

Discontinued

Discontinued
 $2.99
Discontinued
Power Take-Off And Engine Pulley
Simplicity 990120 Wonderboy, 4Hp Mower Power Take-Off And Engine Pulley class=
 Fig #
A
Key, Woodruff, No. 9 Obsolete - Not Available
 $2.99

Part Number:2725003

Discontinued

Discontinued
 $2.99
Discontinued
B
Set Screw, 5/16" 18 X 1/2" Obsolete - Not Available
 $2.99

Part Number:2713501

Discontinued

Discontinued
 $2.99
Discontinued
C
Pulley Obsolete - Not Available
 $2.99

Part Number:10802S

Discontinued

Discontinued
 $2.99
Discontinued
D
Bearing, Needle Obsolete - Not Available
 $2.99

Part Number:1080S4

Discontinued

Discontinued
 $2.99
Discontinued
E
Bracket Assembly, Drive Obsolete - Not Available
 $2.99

Part Number:121045

Discontinued

Discontinued
 $2.99
Discontinued
F
Fitting, Grease Obsolete - Not Available
 $2.99

Part Number:2727002

Discontinued

Discontinued
 $2.99
Discontinued
G
Lever, Idler Assembly Obsolete - Not Available
 $2.99

Part Number:121049

Discontinued

Discontinued
 $2.99
Discontinued
H
Washer Obsolete - Not Available
 $2.99

Part Number:2116001

Discontinued

Discontinued
 $2.99
Discontinued
J
Pulley Obsolete - Not Available
 $2.99

Part Number:109052

Discontinued

Discontinued
 $2.99
Discontinued
K
Shaft, Idler Obsolete - Not Available
 $2.99

Part Number:108014

Discontinued

Discontinued
 $2.99
Discontinued
L
Nut, Hex, Full, 3/8"-16 Nc Obsolete - Not Available
 $2.99

Part Number:2717003

Discontinued

Discontinued
 $2.99
Discontinued
M
Washer, Lock, 3/8" Obsolete - Not Available
 $2.99

Part Number:2720002

Discontinued

Discontinued
 $2.99
Discontinued
N
Washer, Plain, 3/8" Obsolete - Not Available
 $2.99

Part Number:2719001

Discontinued

Discontinued
 $2.99
Discontinued
P
Race, Inner Bearing Obsolete - Not Available
 $2.99

Part Number:S11-A73

Discontinued

Discontinued
 $2.99
Discontinued
Q
Pulley, Idler Obsolete - Not Available
 $2.99

Part Number:F-AX5

Discontinued

Discontinued
 $2.99
Discontinued
R
34" V Belt Obsolete - Not Available
 $2.99

Part Number:2118068

Discontinued

Discontinued
 $2.99
Discontinued
S
Pulley, Engine Obsolete - Not Available
 $2.99

Part Number:121069

Discontinued

Discontinued
 $2.99
Discontinued
T
Screw, Set, Cup Point, 5/16-18 Nc X 5/16" Lg Obsolete - Not Available
 $2.99

Part Number:2713503

Discontinued

Discontinued
 $2.99
Discontinued
U
Cover-crankcase
 $184.95

Part Number:715008

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $184.95
Usually ships in 7 - 12 business days
 $184.95
V
Stop, Belt Obsolete - Not Available
 $2.99

Part Number:121074

Discontinued

Discontinued
 $2.99
Discontinued
W
Stop, Belt Obsolete - Not Available
 $2.99

Part Number:121112

Discontinued

Discontinued
 $2.99
Discontinued
X
Nut, Hex, Full, 3/8"-16 Nc Obsolete - Not Available
 $2.99

Part Number:2717003

Discontinued

Discontinued
 $2.99
Discontinued
Y
Washer, Plain, 5/16" Obsolete - Not Available
 $2.99

Part Number:2719002

Discontinued

Discontinued
 $2.99
Discontinued
Z
Holder, Belt Obsolete - Not Available
 $2.99

Part Number:S1A158

Discontinued

Discontinued
 $2.99
Discontinued
AA
Key Obsolete - Not Available
 $2.99

Part Number:S3A42

Discontinued

Discontinued
 $2.99
Discontinued
AB
Spring Obsolete - Not Available
 $2.99

Part Number:PA47

Discontinued

Discontinued
 $2.99
Discontinued
Seat Hood And Drawbar Assembly
Simplicity 990120 Wonderboy, 4Hp Mower Seat Hood And Drawbar Assembly class=
 Fig #
A
Pin, Hood Obsolete - Not Available
 $2.99

Part Number:121183

Discontinued

Discontinued
 $2.99
Discontinued
B
Pin, Cotter 3/32 X 1 Obsolete - Not Available
 $2.99

Part Number:2722002

Discontinued

Discontinued
 $2.99
Discontinued
C
Hood Spring
 $9.49

Part Number:2153010SM

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $9.49
Usually ships in 7 - 12 business days
 $9.49
D
Washer, Plain Obsolete - Not Available
 $2.99

Part Number:2719007

Discontinued

Discontinued
 $2.99
Discontinued
E
Panel, Top Obsolete - Not Available
 $2.99

Part Number:121091

Discontinued

Discontinued
 $2.99
Discontinued
F
Panel, Side, Rh Obsolete - Not Available
 $2.99

Part Number:121141

Discontinued

Discontinued
 $2.99
Discontinued
G
Fender Obsolete - Not Available
 $2.99

Part Number:121103

Discontinued

Discontinued
 $2.99
Discontinued
H
Pad, Seat Obsolete - Not Available
 $2.99

Part Number:121114

Discontinued

Discontinued
 $2.99
Discontinued
J
Bolt Carriage 1/2-13 X 1 1/4" Obsolete - Not Available
 $2.99

Part Number:702010

Discontinued

Discontinued
 $2.99
Discontinued
K
Seat Obsolete - Not Available
 $2.99

Part Number:121029

Discontinued

Discontinued
 $2.99
Discontinued
L
Bracket, Seat Obsolete - Not Available
 $2.99

Part Number:121028

Discontinued

Discontinued
 $2.99
Discontinued
M
Washer, Plain, 1/2" Obsolete - Not Available
 $2.99

Part Number:2719004

Discontinued

Discontinued
 $2.99
Discontinued
N
Hex Nut, Full, 1/2"-13 Obsolete - Not Available
 $2.99

Part Number:2717006

Discontinued

Discontinued
 $2.99
Discontinued
P
Nut, Hex, Full, 3/8"-16 Nc Obsolete - Not Available
 $2.99

Part Number:2717003

Discontinued

Discontinued
 $2.99
Discontinued
Q
Washer, Lock, 3/8" Obsolete - Not Available
 $2.99

Part Number:2720002

Discontinued

Discontinued
 $2.99
Discontinued
R
Nut, Hex, Full, 3/8"-16 Nc Obsolete - Not Available
 $2.99

Part Number:2717003

Discontinued

Discontinued
 $2.99
Discontinued
S
Lock Washer 3/8-In Obsolete - Not Available
 $2.99

Part Number:120002

Discontinued

Discontinued
 $2.99
Discontinued
T
Plate, Side Obsolete - Not Available
 $2.99

Part Number:121027

Discontinued

Discontinued
 $2.99
Discontinued
U
Screw, Hex Cap 7/16-20 X 3/8&#
 $159.92

Part Number:706011

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $159.92
Usually ships in 7 - 12 business days
 $159.92
V
Washer, Lack, 7/16" Obsolete - Not Available
 $2.99

Part Number:721504

Discontinued

Discontinued
 $2.99
Discontinued
W
Bolt, Sq. Hd. Mach. 3/8-16 X 6" Obsolete - Not Available
 $2.99

Part Number:701001

Discontinued

Discontinued
 $2.99
Discontinued
X
Washer, Plain, 3/8" Obsolete - Not Available
 $2.99

Part Number:2719001

Discontinued

Discontinued
 $2.99
Discontinued
Y
Nut, Hex, Full, 3/8"-24 Nf Obsolete - Not Available
 $2.99

Part Number:717010

Discontinued

Discontinued
 $2.99
Discontinued
Z
Capscrew, Hex Head, 3/8"-16 Nc X 1" Lg Obsolete - Not Available
 $2.99

Part Number:2705005

Discontinued

Discontinued
 $2.99
Discontinued
AA
Spring, Latch Obsolete - Not Available
 $2.99

Part Number:121105

Discontinued

Discontinued
 $2.99
Discontinued
AB
Latch Obsolete - Not Available
 $2.99

Part Number:121098

Discontinued

Discontinued
 $2.99
Discontinued
AC
Screw, Hex. Cap 3/8-24 X 4 3/4
 $240.43

Part Number:715009

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $240.43
Usually ships in 7 - 12 business days
 $240.43
AD
Draw Bar Assembly Obsolete - Not Available
 $2.99

Part Number:121099

Discontinued

Discontinued
 $2.99
Discontinued
AE
Washer, Lock, 3/8" Obsolete - Not Available
 $2.99

Part Number:2720002

Discontinued

Discontinued
 $2.99
Discontinued
AF
Nut, Hex, Full, 3/8"-16 Nc Obsolete - Not Available
 $2.99

Part Number:2717003

Discontinued

Discontinued
 $2.99
Discontinued
AG
Fitting, Grease, Alemite No. 1637 Obsolete - Not Available
 $2.99

Part Number:2727006

Discontinued

Discontinued
 $2.99
Discontinued
AH
Latch, Hood, R.H Obsolete - Not Available
 $2.99

Part Number:121180

Discontinued

Discontinued
 $2.99
Discontinued
AJ
Bracket, Pivot Assembly Obsolete - Not Available
 $2.99

Part Number:121179

Discontinued

Discontinued
 $2.99
Discontinued
AK
Nut, Hex, Full, 3/8"-16 Nc Obsolete - Not Available
 $2.99

Part Number:2717003

Discontinued

Discontinued
 $2.99
Discontinued
AL
Washer, Lock, 3/8" Obsolete - Not Available
 $2.99

Part Number:2720002

Discontinued

Discontinued
 $2.99
Discontinued
AM
Latch, Hood, L.H. Obsolete - Not Available
 $2.99

Part Number:121181

Discontinued

Discontinued
 $2.99
Discontinued
AN
Capscrew, Hex Head, 3/8"-16 Nc X 1" Lg Obsolete - Not Available
 $2.99

Part Number:2705005

Discontinued

Discontinued
 $2.99
Discontinued
AP
Washer, Plain, 3/8" Obsolete - Not Available
 $2.99

Part Number:2719001

Discontinued

Discontinued
 $2.99
Discontinued
AQ
Capscrew, Hex Head, 3/8"-16 Nc X 1-1/4" Lg Obsolete - Not Available
 $2.99

Part Number:2705009

Discontinued

Discontinued
 $2.99
Discontinued
AR
Panel, Side, L.H. Obsolete - Not Available
 $2.99

Part Number:121090

Discontinued

Discontinued
 $2.99
Discontinued
AS
Nut, Sq., 3/8-16 Obsolete - Not Available
 $2.99

Part Number:717019

Discontinued

Discontinued
 $2.99
Discontinued
AT
Capscrew, Hex Head, 3/8-16 Nc X 1-1/4" Lg Obsolete - Not Available
 $2.99

Part Number:2705016

Discontinued

Discontinued
 $2.99
Discontinued
AU
Spacer, Engine Obsolete - Not Available
 $2.99

Part Number:121068

Discontinued

Discontinued
 $2.99
Discontinued
AV
Nut, Hex, Full, 3/8"-16 Nc Obsolete - Not Available
 $2.99

Part Number:2717003

Discontinued

Discontinued
 $2.99
Discontinued
AW
Washer, Lock, 3/8" Obsolete - Not Available
 $2.99

Part Number:2720002

Discontinued

Discontinued
 $2.99
Discontinued
AX
Washer, Plain, 3/8" Obsolete - Not Available
 $2.99

Part Number:2719001

Discontinued

Discontinued
 $2.99
Discontinued
AY
Spacer Obsolete - Not Available
 $2.99

Part Number:2121121

Discontinued

Discontinued
 $2.99
Discontinued
AZ
Screw, Cap, Hex., 3/8"-16 N.C. X 2" Lg. Obsolete - Not Available
 $2.99

Part Number:2705006

Discontinued

Discontinued
 $2.99
Discontinued
BA
Screw, Cap, Hex, 3/8"-16 Nc X 5/8" Lg Obsolete - Not Available
 $2.99

Part Number:2705011

Discontinued

Discontinued
 $2.99
Discontinued
BB
Washer, Plain, 3/8" Obsolete - Not Available
 $2.99

Part Number:2719001

Discontinued

Discontinued
 $2.99
Discontinued
BC
Washer, Lock, 3/8" Obsolete - Not Available
 $2.99

Part Number:2720002

Discontinued

Discontinued
 $2.99
Discontinued
BD
Nut, Hex, Full, 3/8"-16 Nc Obsolete - Not Available
 $2.99

Part Number:2717003

Discontinued

Discontinued
 $2.99
Discontinued
BE
Screw, Self Topping #10 X 1/2" Lg. Obsolete - Not Available
 $2.99

Part Number:2714003

Discontinued

Discontinued
 $2.99
Discontinued
BF
Nut, Type "E" Obsolete - Not Available
 $2.99

Part Number:718009

Discontinued

Discontinued
 $2.99
Discontinued
BG
Washer, Lock, 3/8" Obsolete - Not Available
 $2.99

Part Number:2720002

Discontinued

Discontinued
 $2.99
Discontinued
BH
Nut, Hex, Full, 3/8"-16 Nc Obsolete - Not Available
 $2.99

Part Number:2717003

Discontinued

Discontinued
 $2.99
Discontinued
Transmission Assembly
Simplicity 990120 Wonderboy, 4Hp Mower Transmission Assembly class=
 Fig #
A
Key, Hi-Pro, Hp-608 Obsolete - Not Available
 $2.99

Part Number:2725501

Discontinued

Discontinued
 $2.99
Discontinued
B
Mach. Rd. Hd. Screw, #10-32 X
 $3.99

Part Number:710004

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: (Oil Drain Plug)
 $3.99
Usually ships in 7 - 12 business days
 $3.99
C
Grease Fitting No. Ad-1051 Obsolete - Not Available
 $2.99

Part Number:727003

Discontinued

Discontinued
 $2.99
Discontinued
D
Cover Assembly Obsolete - Not Available
 $2.99

Part Number:121174

Discontinued

Discontinued
 $2.99
Discontinued
E
Gear Case Gasket Obsolete - Not Available
 $2.99

Part Number:153115

Discontinued

Discontinued
 $2.99
Discontinued
F
Gear Assembly, Drive Obsolete - Not Available
 $2.99

Part Number:121165

Discontinued

Discontinued
 $2.99
Discontinued
G
Intermediate Pinion Bearing Obsolete - Not Available
 $2.99

Part Number:2153078

Discontinued

Discontinued
 $2.99
Discontinued
H
Gear Assembly, Intermediate Obsolete - Not Available
 $2.99

Part Number:121119

Discontinued

Discontinued
 $2.99
Discontinued
J
Bearing
 $30.20

Part Number:2153068SM

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $30.20
Usually ships in 7 - 12 business days
 $30.20
K
Washer Obsolete - Not Available
 $2.99

Part Number:2153079

Discontinued

Discontinued
 $2.99
Discontinued
L
Retaining Ring
 $6.52

Part Number:2153124SM

In Stock

In Stock
 $6.52
In Stock
 $6.52
M
Ring, Retainer Obsolete - Not Available
 $2.99

Part Number:153125

Discontinued

Discontinued
 $2.99
Discontinued
N
Washer Obsolete - Not Available
 $2.99

Part Number:2153072

Discontinued

Discontinued
 $2.99
Discontinued
P
Pinion Assembly, Reverse With Bearing Obsolete - Not Available
 $2.99

Part Number:121117

Discontinued

Discontinued
 $2.99
Discontinued
Q
Bearing Obsolete - Not Available
 $2.99

Part Number:153064

Discontinued

Discontinued
 $2.99
Discontinued
R
Reversible Pinion Stuud Obsolete - Not Available
 $2.99

Part Number:153076

Discontinued

Discontinued
 $2.99
Discontinued
S
Capscrew, Hex Head, 3/8"-16 Nc X 1" Lg Obsolete - Not Available
 $2.99

Part Number:2705005

Discontinued

Discontinued
 $2.99
Discontinued
T
Sheild Obsolete - Not Available
 $2.99

Part Number:153094

Discontinued

Discontinued
 $2.99
Discontinued
U
Shaft, Intermediate Obsolete - Not Available
 $2.99

Part Number:121043

Discontinued

Discontinued
 $2.99
Discontinued
V
Gear Case Obsolete - Not Available
 $2.99

Part Number:153105

Discontinued

Discontinued
 $2.99
Discontinued
W
Housing, Assembly, Axle Obsolete - Not Available
 $2.99

Part Number:121055

Discontinued

Discontinued
 $2.99
Discontinued
X
Gripco Lock Nut, No. 10-32 Obsolete - Not Available
 $2.99

Part Number:2717507

Discontinued

Discontinued
 $2.99
Discontinued
Y
Bearing Housing Gasket Obsolete - Not Available
 $2.99

Part Number:153114

Discontinued

Discontinued
 $2.99
Discontinued
Z
Spring Extension Obsolete - Not Available
 $2.99

Part Number:153011

Discontinued

Discontinued
 $2.99
Discontinued
AA
Spacer Obsolete - Not Available
 $2.99

Part Number:121107

Discontinued

Discontinued
 $2.99
Discontinued
AB
Reverse Lever Spring Obsolete - Not Available
 $2.99

Part Number:153121

Discontinued

Discontinued
 $2.99
Discontinued
AC
Cotter Pin 3/16 X 1-1/4-In Lg. Obsolete - Not Available
 $2.99

Part Number:2722003

Discontinued

Discontinued
 $2.99
Discontinued
AD
Nut, Lock, Full Hex, 3/8"-16 Nc Obsolete - Not Available
 $2.99

Part Number:2717510

Discontinued

Discontinued
 $2.99
Discontinued
AE
Spring Obsolete - Not Available
 $2.99

Part Number:S2A47

Discontinued

Discontinued
 $2.99
Discontinued
AF
Plate, Friction Obsolete - Not Available
 $2.99

Part Number:121042

Discontinued

Discontinued
 $2.99
Discontinued
AG
Hex Jam Nut, 3/8"-16 Obsolete - Not Available
 $2.99

Part Number:2717013

Discontinued

Discontinued
 $2.99
Discontinued
AH
Bearing Housing Assembly Obsolete - Not Available
 $2.99

Part Number:153044

Discontinued

Discontinued
 $2.99
Discontinued
AJ
Fitting, Grease, Alemite No. 1911 Obsolete - Not Available
 $2.99

Part Number:2727004

Discontinued

Discontinued
 $2.99
Discontinued
AK
Nut, Full, Hex, L.H. Obsolete - Not Available
 $2.99

Part Number:153090

Discontinued

Discontinued
 $2.99
Discontinued
AL
Lock Plate Obsolete - Not Available
 $2.99

Part Number:121139

Discontinued

Discontinued
 $2.99
Discontinued
AM
Bearing Obsolete - Not Available
 $2.99

Part Number:F-A38

Discontinued

Discontinued
 $2.99
Discontinued
AN
Washer Obsolete - Not Available
 $2.99

Part Number:2153079

Discontinued

Discontinued
 $2.99
Discontinued
AP
Retaining Ring
 $6.52

Part Number:2153124SM

In Stock

In Stock
 $6.52
In Stock
 $6.52
AQ
Pulley, Transmission Obsolete - Not Available
 $2.99

Part Number:121124

Discontinued

Discontinued
 $2.99
Discontinued
AR
Belt, "v", Power Take-
 $25.27

Part Number:2121078SM

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $25.27
Usually ships in 7 - 12 business days
 $25.27
AS
Pinion And Pulley Shaft Assembly Obsolete - Not Available
 $94.57

Part Number:2121115SM

Discontinued

Discontinued
 $94.57
Discontinued
AT
Capscrew, Hex Head, 3/8"-16 Nc X 1-3/4" Lg Obsolete - Not Available
 $2.99

Part Number:2705010

Discontinued

Discontinued
 $2.99
Discontinued
AU
Lever Assembly, Shift Obsolete - Not Available
 $2.99

Part Number:121039

Discontinued

Discontinued
 $2.99
Discontinued
AV
Knob Obsolete - Not Available
 $2.99

Part Number:DA50

Discontinued

Discontinued
 $2.99
Discontinued
AW
Screw, Square Head, Set, 3/8-1
 $48.08

Part Number:715002

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $48.08
Usually ships in 7 - 12 business days
 $48.08
AX
Axle Bearing Obsolete - Not Available
 $2.99

Part Number:153089

Discontinued

Discontinued
 $2.99
Discontinued
AY
Washer Obsolete - Not Available
 $2.99

Part Number:153088

Discontinued

Discontinued
 $2.99
Discontinued
AZ
Ring, Retaining Obsolete - Not Available
 $2.99

Part Number:121128

Discontinued

Discontinued
 $2.99
Discontinued
BA
Axle, Hear Obsolete - Not Available
 $2.99

Part Number:121079

Discontinued

Discontinued
 $2.99
Discontinued
BB
Hub, Wheel, L.H. Obsolete - Not Available
 $2.99

Part Number:121089

Discontinued

Discontinued
 $2.99
Discontinued
BC
Wheel, Less Tire And Tube Obsolete - Not Available
 $2.99

Part Number:121109

Discontinued

Discontinued
 $2.99
Discontinued
BD
Hub Bolt Obsolete - Not Available
 $2.99

Part Number:2121138

Discontinued

Discontinued
 $2.99
Discontinued
BE
Cap, Hub Obsolete - Not Available
 $2.99

Part Number:121137

Discontinued

Discontinued
 $2.99
Discontinued
BF
Bolt
 $10.28

Part Number:707989

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $10.28
Usually ships in 7 - 12 business days
 $10.28
BG
Key, Woodruff, No. 9 Obsolete - Not Available
 $2.99

Part Number:2725003

Discontinued

Discontinued
 $2.99
Discontinued
BH
Washer, Lock, 3/8" Obsolete - Not Available
 $2.99

Part Number:2720002

Discontinued

Discontinued
 $2.99
Discontinued
BJ
Nut, Hex, Full, 3/8"-16 Nc Obsolete - Not Available
 $2.99

Part Number:2717003

Discontinued

Discontinued
 $2.99
Discontinued
AA
Gun, Grease Wrench, Set Screw-5,32" Obsolete - Not Available
 $2.99

Part Number:990104

Discontinued

Discontinued
 $2.99
Discontinued
 Fig #
Lawn Tractor Parts

Repair Guides for Simplicity Wonderboy, 4Hp 990120

How to Replace the Fuel Filters in Your Outdoor Power Equipment

This video will help you troubleshoot your fuel-line replacement repairs.

Quick Fix: How to Clean a Spark Arrestor Screen on a Small 2-Cycle Engine

This repair video will instruct you how to repair a dirty or damaged spark arrestor on your small engine.

How to Test a Small Engine for Spark

If your small engine isn't starting, you'll need to diagnose many issues including the spark plug. This video walks you through the steps of how to test for a spark using a spark tester.

Quick Fix: How to Replace the Spark Plug in a Small Engine

This video will help you replace the spark plug on a small engine which will help get your gas powered equipment up and running again.

Questions & Answers for 990120

No questions have been asked yet
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