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MTD Lawn Mower Parts 1991
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MTD Lawn Mower Parts 1991
  MTD 121-478B087 (1991) Lawn Mower Parts
MTD Lawn Mower Replacement For Model 121-478B087 (1991)

MTD Lawn Mower Replacement Parts For Model 121-478B087 (1991)

We Sell Only Genuine MTD Parts

Questions & Answers for MTD 121-478B087 (1991)

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Page A
MTD 121-478B087 (1991) Lawn Mower Page A Diagram
 Fig #
A1
Hex Bolt 1/4-20 X 1.25 Lg.
 $3.99

Part Number:710-0106

In Stock

In Stock
 $3.99
In Stock
 $3.99
A2
Washer-lock
 $4.99

Part Number:936-0329

In Stock

In Stock

Note: (for Model E633e)
 $4.99
In Stock
 $4.99
A3
Upper Hsg Hf
 $90.76

Part Number:717-0418A

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $90.76
Usually ships in 7 - 12 business days
 $90.76
A4
#48 Sprocket 7 Tooth X 1/2 Pitch Obsolete - Not Available
 $4.99

Part Number:713-0400

Discontinued

Discontinued
 $4.99
Discontinued
A5
Washer-fl
 $4.99

Part Number:936-0336

In Stock

In Stock

Note: Use Applicable Flat Washers in This Application Allowing .006/.014 In. End-Play.
 $4.99
In Stock
 $4.99
A6
Bearing-hex Flange
 $10.03

Part Number:941-0413

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Part of Transmission Complete, Ref. No. 36.
 $10.03
Usually ships in 7 - 12 business days
 $10.03
A7
Bearing-cup Hex
 $9.50

Part Number:16500A-0637

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Part of Transmission Complete, Ref. No. 36.
 $9.50
Usually ships in 7 - 12 business days
 $9.50
A8
Thrust Wash. .382" I.d. X
 $6.49

Part Number:736-0314

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $6.49
Usually ships in 7 - 12 business days
 $6.49
A9
Bearing-thrust
 $11.02

Part Number:741-0479

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Part of Transmission Complete, Ref. No. 36.
 $11.02
Usually ships in 7 - 12 business days
 $11.02
A11
Shaft-pinion 11 T
 $33.26

Part Number:917-1216

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Part of Transmission Complete, Ref. No. 36.
 $33.26
Usually ships in 7 - 12 business days
 $33.26
A12
Bearing-flange
 $4.99

Part Number:748-0208A

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Part of Transmission Complete, Ref. No. 36.
 $4.99
Usually ships in 7 - 12 business days
 $4.99
A13
Seal-oil-.375 Id
 $9.72

Part Number:721-0212

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Part of Transmission Complete, Ref. No. 36.
 $9.72
Usually ships in 7 - 12 business days
 $9.72
A15
Pulley
 $30.64

Part Number:756-0330A

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Not Part of Transmission Complete - Not Part of Transmission Complete
 $30.64
Usually ships in 7 - 12 business days
 $30.64
A16
Bell-wash. 1/4 I.d.
 $3.99

Part Number:736-0270

In Stock

In Stock

Note: If Equipped - Not Part of Transmission Complete
 $3.99
In Stock
 $3.99
A17
Nut-jam 1/4-28 Lh
 $14.49

Part Number:712-04326

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Not Part of Transmission Complete - Not Part of Transmission Complete
 $14.49
Usually ships in 7 - 12 business days
 $14.49
A18
Spacer-shld
 $6.02

Part Number:738-0440

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Not Part of Transmission Complete - Not Part of Transmission Complete
 $6.02
Usually ships in 7 - 12 business days
 $6.02
A19
Washer, Flat, .385 X 1.0 X .03
 $4.99

Part Number:736-0344

In Stock

In Stock

Note: Not Part of Transmission Complete - Not Part of Transmission Complete
 $4.99
In Stock
 $4.99
A20
Screw-shld
 $12.28

Part Number:938-0826

In Stock

In Stock

Note: Not Part of Transmission Complete - Not Part of Transmission Complete
 $12.28
In Stock
 $12.28
A21
Pulley
 $12.22

Part Number:956-0558

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Not Part of Transmission Complete - Not Part of Transmission Complete
 $12.22
Usually ships in 7 - 12 business days
 $12.22
A22
Use 941-0556
 $17.50

Part Number:741-0556

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Not Part of Transmission Complete
 $17.50
Usually ships in 7 - 12 business days
 $17.50
A23
Bell-wash. 1/4 I.d.
 $3.99

Part Number:736-0270

In Stock

In Stock

Note: If Equipped - Not Part of Transmission Complete
 $3.99
In Stock
 $3.99
A24
Bracket Assy-idler
 $11.02

Part Number:17052A

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Not Part of Transmission Complete - Not Part of Transmission Complete
 $11.02
Usually ships in 7 - 12 business days
 $11.02
A25
Hex Patch L-nut 1/4-28 Thd
 $6.03

Part Number:712-0138

In Stock

In Stock

Note: (Not Part of Transmission Complete) - Not Part of Transmission Complete
 $6.03
In Stock
 $6.03
A26
Extension Spring 1.12
 $3.99

Part Number:732-0357A

In Stock

In Stock

Note: New Part Not Part of Transmission Complete - Not Part of Transmission Complete
 $3.99
In Stock
 $3.99
A27
Lower Hsg. Half
 $34.90

Part Number:717-0419B

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: New Part
 $34.90
Usually ships in 7 - 12 business days
 $34.90
A28
Bearing-flange
 $10.14

Part Number:941-0415

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Part of Transmission Complete, Ref. No. 36.
 $10.14
Usually ships in 7 - 12 business days
 $10.14
A29
Shaft Assembly W
 $141.85

Part Number:717-0616A

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $141.85
Usually ships in 7 - 12 business days
 $141.85
A30
Bearing-flange
 $10.39

Part Number:741-0414

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Part of Transmission Complete, Ref. No. 36.
 $10.39
Usually ships in 7 - 12 business days
 $10.39
A31
Seal-oil
 $10.97

Part Number:721-0213

In Stock

In Stock

Note: Part of Transmission Complete, Ref. No. 36.
 $10.97
In Stock
 $10.97
A32
Shaft Assembly W
 $141.85

Part Number:717-0616A

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $141.85
Usually ships in 7 - 12 business days
 $141.85
A33
Washer-lock #10
 $6.42

Part Number:936-0722

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Part of Transmission Complete, Ref. No. 36.
 $6.42
Usually ships in 7 - 12 business days
 $6.42
A34
Screw-hex Wash Hd
 $3.99

Part Number:710-0651

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Part of Transmission Complete, Ref. No. 36.
 $3.99
Usually ships in 7 - 12 business days
 $3.99
A35
Washer-hex
 $3.99

Part Number:936-0410

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Not Part of Transmission Complete - Not Part of Transmission Complete
 $3.99
Usually ships in 7 - 12 business days
 $3.99
A
Transmission-comp
 $239.49

Part Number:917-0417B

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: (See Breakdown)
 $239.49
Usually ships in 7 - 12 business days
 $239.49
Page B
MTD 121-478B087 (1991) Lawn Mower Page B class=
 Fig #
B1
Control Handle Ass'y. L.H. Obsolete - Not Available
 $20.05

Part Number:731-0609

Discontinued

Discontinued
 $20.05
Discontinued
B2
Foam Grip - 9
 $7.01

Part Number:720-0294A

In Stock

In Stock

Note: (2 Required)
 $7.01
In Stock
 $7.01
B3
Screw-truss Mach
 $5.24

Part Number:710-0796

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: (Optional Parts)
 $5.24
Usually ships in 7 - 12 business days
 $5.24
B4
Control Panel Half Obsolete - Not Available
 $11.83

Part Number:731-0817A

Discontinued

Discontinued
 $11.83
Discontinued
B5
Clutch Panel Half Obsolete - Not Available
 $2.99

Part Number:731-0818

Discontinued

Discontinued
 $2.99
Discontinued
B6
Lever-throttle Con
 $9.76

Part Number:931-0972

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: (Attaching Throttle Wire to Lever Modles 466r, 469r, 476r and 479r: Use Upper Hole in Lever as Shown. All Other Models: Use Lowe
 $9.76
Usually ships in 7 - 12 business days
 $9.76
B7
Control Disc Pin Obsolete - Not Available
 $4.99

Part Number:931-0524

Discontinued

Discontinued
 $4.99
Discontinued
B9
Cable-throttle
 $18.71

Part Number:946-0674A

In Stock

In Stock

Note: for Model 848c Only.
 $18.71
In Stock
 $18.71
B10
Control Housing Comp. Obsolete - Not Available
 $22.77

Part Number:753-0431

Discontinued

Discontinued
 $22.77
Discontinued
B11
Cable-clutch 52 In
 $45.87

Part Number:946-0407

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $45.87
Usually ships in 7 - 12 business days
 $45.87
B12
Handle-upper Short
 $45.74

Part Number:749-0439E-0637

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: (Incl. Ref. No. 9)
 $45.74
Usually ships in 7 - 12 business days
 $45.74
B15
Bolt-carriage-curv
 $3.99

Part Number:910-0671

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $3.99
Usually ships in 7 - 12 business days
 $3.99
B16
Washer-bowed
 $6.63

Part Number:936-0286

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: (Models With Soft Top Grass Catcher)
 $6.63
Usually ships in 7 - 12 business days
 $6.63
B18
Tie-cable 7
 $3.99

Part Number:725-0157

In Stock

In Stock

Note: (W/ Heated Grips)
 $3.99
In Stock
 $3.99
B19
Washer-lock 5/16
 $4.99

Part Number:936-0119

In Stock

In Stock

Note: for Faster Service Obtain Standard Nuts, Bolts and Washers Locally. if Items Cannot Be Obtained Locally, Order by Part Number an
 $4.99
In Stock
 $4.99
B20
Use 912-3010
 $4.99

Part Number:712-3010

In Stock

In Stock
 $4.99
In Stock
 $4.99
B21
Use 749-0907b
 $51.64

Part Number:749-0907B-0637

In Stock

In Stock

Note: (Code: N)
 $51.64
In Stock
 $51.64
B22
Hub Cap
 $7.06

Part Number:10647

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: (Rear)
 $7.06
Usually ships in 7 - 12 business days
 $7.06
B23
Screw-pan Hd Tapp
 $3.99

Part Number:710-0748

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: (Used W/Ref. #22)
 $3.99
Usually ships in 7 - 12 business days
 $3.99
B24
Bell-wash. 1/4 I.d.
 $3.99

Part Number:736-0270

In Stock

In Stock

Note: If Equipped
 $3.99
In Stock
 $3.99
B25
Bag Handle Obsolete - Not Available
 $16.84

Part Number:731-0801

Discontinued

Discontinued

Note: (Models 460r Thru 469r Only) - Models 466B & 468B Only
 $16.84
Discontinued
B26
Frame-catcher-rr
 $39.67

Part Number:749-0764A-0637

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: New Part - Models 466B & 468B Only
 $39.67
Usually ships in 7 - 12 business days
 $39.67
B28
Spark Plug Boot Obsolete - Not Available
 $2.99

Part Number:735-0639

Discontinued

Discontinued

Note: (Optional)
 $2.99
Discontinued
B30
Kit-control Hsg.
 $52.24

Part Number:753-0833

In Stock

In Stock

Note: (Not Shown)
 $52.24
In Stock
 $52.24
B31
Kit-control Hsg.
 $52.24

Part Number:753-0833

In Stock

In Stock

Note: (Not Shown)
 $52.24
In Stock
 $52.24
B32
Lever-control
 $14.86

Part Number:731-0620A

In Stock

In Stock

Note: (Not Shown)
 $14.86
In Stock
 $14.86
B33
Cable-clutch
 $32.03

Part Number:946-0713A

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $32.03
Usually ships in 7 - 12 business days
 $32.03
B34
Screw-fl C-sunk Ab
 $4.99

Part Number:710-0841

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $4.99
Usually ships in 7 - 12 business days
 $4.99
B35
Kit-control Hsg.
 $52.24

Part Number:753-0833

In Stock

In Stock

Note: (Not Shown)
 $52.24
In Stock
 $52.24
B36
Cover-hardtop Bag
 $101.47

Part Number:631-0003

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: (Models 472r Thru 479r Only) - Models 476B & 478B Only
 $101.47
Usually ships in 7 - 12 business days
 $101.47
B37
Cover-hardtop Bag
 $101.47

Part Number:631-0003

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: (Models 472r Thru 479r Only) - Models 476B & 478B Only
 $101.47
Usually ships in 7 - 12 business days
 $101.47
B38
Bag-grass-hard Top
 $138.92

Part Number:964-0252

In Stock

In Stock

Note: (Models 472r Thru 479r Only) - Models 476B & 478B Only
 $138.92
In Stock
 $138.92
B39
Screw-machine 1/4-
 $6.89

Part Number:710-0166A

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: (Optional Equipment)
 $6.89
Usually ships in 7 - 12 business days
 $6.89
B41
Use 936-0463
 $4.99

Part Number:736-0463

In Stock

In Stock

Note: (for Model E633e) - Models 476B & 478B Only
 $4.99
In Stock
 $4.99
B42
Nut-hex 1/4-20
 $4.99

Part Number:912-0287

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: for Faster Service Obtain Standard Nuts, Bolts and Washers Locally. if Items Cannot Be Obtained Locally, Order by Part Number an
 $4.99
Usually ships in 7 - 12 business days
 $4.99
B43
Catcher-frt
 $40.01

Part Number:764-0411-0637

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: (Models 472r Thru 479r Only) - Models 476B & 478B Only
 $40.01
Usually ships in 7 - 12 business days
 $40.01
B44
Rear Catcher Frame Obsolete - Not Available
 $25.26

Part Number:749-0736B-0637

Discontinued

Discontinued

Note: Nla - Models 476B & 478B Only
 $25.26
Discontinued
B45
Deflector-chute Rr
 $125.61

Part Number:931-0859A

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: New Part
 $125.61
Usually ships in 7 - 12 business days
 $125.61
B46
Plug-deflector
 $3.99

Part Number:731-0970B

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $3.99
Usually ships in 7 - 12 business days
 $3.99
B47
Seal-extrusion
 $9.02

Part Number:731-0858

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $9.02
Usually ships in 7 - 12 business days
 $9.02
B48
Grip
 $14.09

Part Number:720-0223

In Stock

In Stock
 $14.09
In Stock
 $14.09
B49
Lever-spring
 $7.67

Part Number:732-0580

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $7.67
Usually ships in 7 - 12 business days
 $7.67
B50
Torsion Spring - R.h.
 $3.99

Part Number:732-0578B

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $3.99
Usually ships in 7 - 12 business days
 $3.99
B51
Spring-torsion-lh
 $3.99

Part Number:932-0577B

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: No Longer Available
 $3.99
Usually ships in 7 - 12 business days
 $3.99
B52
Spacer
 $10.03

Part Number:750-0566A

In Stock

In Stock

Note: Code N
 $10.03
In Stock
 $10.03
B53
Bracket Assy-hdle
 $10.63

Part Number:12297B-0637

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: No Longer Available
 $10.63
Usually ships in 7 - 12 business days
 $10.63
B54
Pin-hinge
 $4.99

Part Number:747-0698B

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $4.99
Usually ships in 7 - 12 business days
 $4.99
B55
Cap Speed Nut
 $3.99

Part Number:726-0106

In Stock

In Stock
 $3.99
In Stock
 $3.99
B56
Pin-shld 3/8-24x1.
 $3.99

Part Number:711-0805

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $3.99
Usually ships in 7 - 12 business days
 $3.99
B57
Use 936-0169
 $3.99

Part Number:736-0169

In Stock

In Stock
 $3.99
In Stock
 $3.99
B58
Jam Nut 3/8-24
 $4.99

Part Number:712-0711

In Stock

In Stock

Note: for Faster Service Obtain Standard Nuts, Bolts and Washers Locally. if These Items Cannot Be Obtained Locally, Order by Part Num
 $4.99
In Stock
 $4.99
B59
Nut Hex Lock 3/8-2
 $3.99

Part Number:912-0296

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Models 820 Thru 829
 $3.99
Usually ships in 7 - 12 business days
 $3.99
B60
Washer, .401 X .870 X .063
 $4.99

Part Number:736-0105

In Stock

In Stock

Note: For Models 586, 587b & 588
 $4.99
In Stock
 $4.99
B61
Screw-hex Wash Hd
 $4.99

Part Number:710-0778

In Stock

In Stock

Note: (Not Shown)
 $4.99
In Stock
 $4.99
B62
Screw-hex
 $4.99

Part Number:710-0654A

In Stock

In Stock

Note: Code 665
 $4.99
In Stock
 $4.99
B63
21" Deck Ass'y. Obsolete - Not Available
 $74.46

Part Number:16997A

Discontinued

Discontinued
 $74.46
Discontinued
B64
Bracket Assy-hdle
 $12.93

Part Number:12296B-0637

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: New Part
 $12.93
Usually ships in 7 - 12 business days
 $12.93
B65
Hex L-Wash. Hd. Ab-Tap Scr. 1/4 X .62" Lg. Obsolete - Not Available
 $2.99

Part Number:910-0892

Discontinued

Discontinued
 $2.99
Discontinued
B66
Screw-hex L-wash T
 $3.99

Part Number:910-1006

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Optional Parts
 $3.99
Usually ships in 7 - 12 business days
 $3.99
B67
Screw-hex Wash Sf
 $4.99

Part Number:710-0599

In Stock

In Stock

Note: Not Used on Units With Electric P.T.O.
 $4.99
In Stock
 $4.99
B68
Spacer
 $5.39

Part Number:950-0736

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: 950-0736
 $5.39
Usually ships in 7 - 12 business days
 $5.39
B69
Washer-serrated
 $3.99

Part Number:936-0409

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: (Tec. Engine)
 $3.99
Usually ships in 7 - 12 business days
 $3.99
B71
Pulley-movable
 $8.02

Part Number:756-0503

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $8.02
Usually ships in 7 - 12 business days
 $8.02
B72
Blade-21in
 $32.66

Part Number:942-0621

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: (Optional)
 $32.66
Usually ships in 7 - 12 business days
 $32.66
B73
Bell-Wash. .46" I.D. Obsolete - Not Available
 $2.99

Part Number:736-0412

Discontinued

Discontinued
 $2.99
Discontinued
B74
Screw-hex 7/16 N.f
 $6.63

Part Number:710-1002

In Stock

In Stock
 $6.63
In Stock
 $6.63
B75
Hex Nut 3/8-24 Gr.5
 $4.99

Part Number:712-0241

In Stock

In Stock

Note: for Faster Service Obtain Standard Nuts, Bolts and Washers Locally. if These Items Cannot Be Obtained Locally, Order by Part Num
 $4.99
In Stock
 $4.99
B76
Washer-lock
 $4.99

Part Number:936-0329

In Stock

In Stock

Note: (for Model E633e)
 $4.99
In Stock
 $4.99
B77
Nut-hex Jam 1/4-20
 $5.95

Part Number:912-0298

In Stock

In Stock

Note: for Faster Service Obtain Standard Nuts, Bolts and Washers Locally. if Items Cannot Be Obtained Locally, Order by Part Number an
 $5.95
In Stock
 $5.95
B78
Hex Bolt 1/4-20 X /75
 $3.99

Part Number:710-3015

In Stock

In Stock

Note: Used on Briggs and Stratton Engines Only
 $3.99
In Stock
 $3.99
B79
Baffle Obsolete - Not Available
 $17.81

Part Number:17013A-0637

Discontinued

Discontinued
 $17.81
Discontinued
B80
Carriage Bolt 1/4-20x.50
 $4.99

Part Number:710-05177

In Stock

In Stock
 $4.99
In Stock
 $4.99
B81
Rear Panel Baffle Obsolete - Not Available
 $24.52

Part Number:17006-0637

Discontinued

Discontinued
 $24.52
Discontinued
B82
Corner Plug Obsolete - Not Available
 $2.99

Part Number:731-0931

Discontinued

Discontinued
 $2.99
Discontinued
B83
Tap Screw 1/4-14 X .625.
 $7.94

Part Number:710-1017

In Stock

In Stock

Note: Code: N
 $7.94
In Stock
 $7.94
B85
Flap-rr
 $48.68

Part Number:731-0669

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $48.68
Usually ships in 7 - 12 business days
 $48.68
B86
Baffle-rr-chute
 $47.47

Part Number:17008-0637

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $47.47
Usually ships in 7 - 12 business days
 $47.47
B87
Strip-retaining
 $6.27

Part Number:14847-0637

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: No Longer Available
 $6.27
Usually ships in 7 - 12 business days
 $6.27
B88
Hub Cap-grey
 $10.10

Part Number:731-0981C

In Stock

In Stock

Note: (if Equipped)
 $10.10
In Stock
 $10.10
B89
Spring
 $4.99

Part Number:10622B

In Stock

In Stock
 $4.99
In Stock
 $4.99
B90
Pawl - Lh
 $11.22

Part Number:948-0188B

In Stock

In Stock
 $11.22
In Stock
 $11.22
B91
Nut-flat Wel
 $4.99

Part Number:712-0414

In Stock

In Stock

Note: (Used W/Ref. #88)
 $4.99
In Stock
 $4.99
B92
Hex Lock Nut 1/4-20
 $3.99

Part Number:712-0324

In Stock

In Stock

Note: Part of Motor, Switch & Cord Ass\\\\\\\'y. Comp. (Ref. 49)
 $3.99
In Stock
 $3.99
B93
Cotter Pin 1/8" Dia.
 $3.99

Part Number:714-0115

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $3.99
Usually ships in 7 - 12 business days
 $3.99
B94
Ratchet
 $9.97

Part Number:948-0318

In Stock

In Stock

Note: Models 820 Thru 829
 $9.97
In Stock
 $9.97
B95
Shld. Scr. .342" Dia. X .268 Obsolete - Not Available
 $4.99

Part Number:738-0137

Discontinued

Discontinued
 $4.99
Discontinued
B96A
8 X 1.75 T Tread
 $36.36

Part Number:734-1412

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: No Longer Available
 $36.36
Usually ships in 7 - 12 business days
 $36.36
B96B
8 X 1.75 T Tread
 $36.36

Part Number:734-1412

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: No Longer Available
 $36.36
Usually ships in 7 - 12 business days
 $36.36
B96C
Wheel-comp Gray Pl
 $32.47

Part Number:734-1826

In Stock

In Stock

Note: for Model 848c Only.
 $32.47
In Stock
 $32.47
B97A
Bearing-ball
 $19.26

Part Number:941-0180

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: (106f)
 $19.26
Usually ships in 7 - 12 business days
 $19.26
B97B
Sleeve Brg. 1/2" I.D. Obsolete - Not Available
 $2.99

Part Number:741-0486B

Discontinued

Discontinued
 $2.99
Discontinued
B98
Spacer-shld .500 X
 $3.99

Part Number:750-0624

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $3.99
Usually ships in 7 - 12 business days
 $3.99
B99
Hex Bolt 1/4-20 X .62
 $3.99

Part Number:710-0751

In Stock

In Stock

Note: for Faster Service Obtain Standard Nuts, Bolts and Washers Locally. if These Items Cannot Be Obtained Locally, Order by Part Num
 $3.99
In Stock
 $3.99
B100
Pin-shld 3/8-24x1.
 $3.99

Part Number:711-0805

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $3.99
Usually ships in 7 - 12 business days
 $3.99
B101
Plate-pawl
 $6.25

Part Number:16855

In Stock

In Stock
 $6.25
In Stock
 $6.25
B102
Chain Cover Obsolete - Not Available
 $2.99

Part Number:17053A

Discontinued

Discontinued
 $2.99
Discontinued
B103
Bearing-hex Flange
 $7.80

Part Number:741-0324A

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Models 820 Thru 829
 $7.80
Usually ships in 7 - 12 business days
 $7.80
B104
Washer-fl
 $4.99

Part Number:936-0160

In Stock

In Stock

Note: (Not Part of Deck Assembly Complete)
 $4.99
In Stock
 $4.99
B105
Rear Axle Ass'y. Obsolete - Not Available
 $62.61

Part Number:938-0719A

Discontinued

Discontinued
 $62.61
Discontinued
B106
Use 941-0522
 $8.49

Part Number:741-0522

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $8.49
Usually ships in 7 - 12 business days
 $8.49
B107
Axle Assy
 $60.03

Part Number:17009-0637

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $60.03
Usually ships in 7 - 12 business days
 $60.03
B108
Washer-intern L 1/
 $3.99

Part Number:736-0498

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: (Models With Soft Top Grass Catcher)
 $3.99
Usually ships in 7 - 12 business days
 $3.99
B109
Spacer .513 I.d. X .703
 $6.05

Part Number:748-0190

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $6.05
Usually ships in 7 - 12 business days
 $6.05
B110
Extension Spring 3.8" Lg. Obsolete - Not Available
 $4.99

Part Number:932-0481

Discontinued

Discontinued
 $4.99
Discontinued
B111
Spacer
 $6.16

Part Number:950-0589

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Model 140 Only
 $6.16
Usually ships in 7 - 12 business days
 $6.16
B112
V-belt (29
 $31.33

Part Number:954-0346

In Stock

In Stock

Note: 646f & 666g
 $31.33
In Stock
 $31.33
B113
Knob-locking
 $8.99

Part Number:920-0224

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: (Optional Parts)
 $8.99
Usually ships in 7 - 12 business days
 $8.99
B114
Use 914-0104
 $4.99

Part Number:714-0104

In Stock

In Stock

Note: for Models 1463834h & 146w834p Only
 $4.99
In Stock
 $4.99
B115
#48 Chain .50" Pitch X 30 Links Obsolete - Not Available
 $8.01

Part Number:913-0353

Discontinued

Discontinued
 $8.01
Discontinued
B116
Transmission-comp
 $239.49

Part Number:917-0417B

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: (See Breakdown)
 $239.49
Usually ships in 7 - 12 business days
 $239.49
B117
Hex L-Wash. Hd. Ab-Tap Scr. 1/4 X .62" Lg. Obsolete - Not Available
 $2.99

Part Number:910-0892

Discontinued

Discontinued

Note: Models 476B & 478B Only
 $2.99
Discontinued
B118
Screw-hex Ab-tap
 $6.16

Part Number:710-1025

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: for Models 460r Thru 468r Only. - Models 466B & 468B Only
 $6.16
Usually ships in 7 - 12 business days
 $6.16
B119
Bag-grass
 $91.11

Part Number:964-0246

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Nla - Models 466B & 468B Only
 $91.11
Usually ships in 7 - 12 business days
 $91.11
B130
Nut-speed
 $6.55

Part Number:726-0135

In Stock

In Stock

Note: (Optional)
 $6.55
In Stock
 $6.55
B131
Push Cap Obsolete - Not Available
 $2.99

Part Number:726-0245

Discontinued

Discontinued
 $2.99
Discontinued
B132
Lock Pin .3/4" Dia. x 1.75" Lg. Obsolete - Not Available
 $2.99

Part Number:731-0607

Discontinued

Discontinued
 $2.99
Discontinued
B133
Height Adjustment Knob
 $13.13

Part Number:731-13116-1

In Stock

In Stock

Note: (Optional Parts)
 $13.13
In Stock
 $13.13
B134
Lockout Spring Obsolete - Not Available
 $2.99

Part Number:732-0401

Discontinued

Discontinued
 $2.99
Discontinued
B135
Ball Bearing, 17 X 40 X 12
 $25.51

Part Number:941-0600

In Stock

In Stock

Note: Part of Motor, Switch & Cord Ass\\\\\\\'y. Comp. (Ref. 49)
 $25.51
In Stock
 $25.51
B136
Compression Spring .35" O.D. x 2.00" Lg. Obsolete - Not Available
 $4.99

Part Number:732-0396

Discontinued

Discontinued
 $4.99
Discontinued
B137
Clutch Blade Housing Ass'y. Obsolete - Not Available
 $52.72

Part Number:717-0888A

Discontinued

Discontinued

Note: (Inc. Ref. 19 & 84)
 $52.72
Discontinued
B138
Clutching Cone Obsolete - Not Available
 $10.07

Part Number:14304A

Discontinued

Discontinued
 $10.07
Discontinued
B139
Cone-brake Cup
 $26.50

Part Number:719-0283

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $26.50
Usually ships in 7 - 12 business days
 $26.50
B140
Ball Block Obsolete - Not Available
 $2.99

Part Number:731-0520

Discontinued

Discontinued
 $2.99
Discontinued
B141
Steel Ball .500" Dia. Obsolete - Not Available
 $2.99

Part Number:741-0326

Discontinued

Discontinued
 $2.99
Discontinued
B142
Extension Spring .35" O.D. x 1.75" Lg. Obsolete - Not Available
 $2.99

Part Number:732-0397

Discontinued

Discontinued
 $2.99
Discontinued
B143
Clutch Housing Obsolete - Not Available
 $28.52

Part Number:14309B

Discontinued

Discontinued
 $28.52
Discontinued
B144
Adapter-fixed Pull
 $25.03

Part Number:756-0504

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $25.03
Usually ships in 7 - 12 business days
 $25.03
B146
Washer-bell 1.008x
 $3.99

Part Number:936-0450

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: Used W/Splined Adapter
 $3.99
Usually ships in 7 - 12 business days
 $3.99
B147
Crankshaft Spacer
 $4.99

Part Number:748-0332

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: (Models 234r, 236r & 238r Only)
 $4.99
Usually ships in 7 - 12 business days
 $4.99
B149
Blade Brake Clutch Ass'y. Comp. Obsolete - Not Available
 $159.40

Part Number:812-00001

Discontinued

Discontinued
 $159.40
Discontinued
Page C
MTD 121-478B087 (1991) Lawn Mower Page C class=
 Fig #
C1
Tap Screw 1/4-14 X .625.
 $7.94

Part Number:710-1017

In Stock

In Stock

Note: Code: N
 $7.94
In Stock
 $7.94
C2
Height Adjustment Support
 $4.99

Part Number:721-0216

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $4.99
Usually ships in 7 - 12 business days
 $4.99
C3
Height Adjustment Plate
 $5.37

Part Number:17323

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $5.37
Usually ships in 7 - 12 business days
 $5.37
C4
Washer-lock
 $4.99

Part Number:936-0329

In Stock

In Stock

Note: (for Model E633e)
 $4.99
In Stock
 $4.99
C6
Height Adj. Connecting Rod
 $11.97

Part Number:747-0699

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $11.97
Usually ships in 7 - 12 business days
 $11.97
C7
Pin-cotter-3/32 Di
 $4.99

Part Number:914-0507

In Stock

In Stock

Note: for Faster Service Obtain Standard Nuts, Bolts and Washers Locally. if These Items Cannot Be Obtained Locally, Order by Part Num
 $4.99
In Stock
 $4.99
C8
Axle Assy
 $132.13

Part Number:17022-0637

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $132.13
Usually ships in 7 - 12 business days
 $132.13
C10
Extension Spring 2.39" Lg. Obsolete - Not Available
 $4.99

Part Number:732-0589

Discontinued

Discontinued
 $4.99
Discontinued
C11
Washer, .401 X .870 X .063
 $4.99

Part Number:736-0105

In Stock

In Stock

Note: For Models 586, 587b & 588
 $4.99
In Stock
 $4.99
C12
Bearing-ball
 $19.26

Part Number:941-0180

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: (106f)
 $19.26
Usually ships in 7 - 12 business days
 $19.26
C13A
Red Obsolete - Not Available
 $3.08

Part Number:731-0124A

Discontinued

Discontinued
 $3.08
Discontinued
C13B
Orange Obsolete - Not Available
 $2.99

Part Number:731-0254A

Discontinued

Discontinued
 $2.99
Discontinued
C13C
Hub Cap
 $3.99

Part Number:731-0354A

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days
 $3.99
Usually ships in 7 - 12 business days
 $3.99
C13D
Hub Cap Gray (4-1/4-inch Dia.)
 $4.99

Part Number:731-0355A

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: (Optional)
 $4.99
Usually ships in 7 - 12 business days
 $4.99
C14A
Wheel Assy W/tire
 $53.57

Part Number:734-1264

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: (Shown)
 $53.57
Usually ships in 7 - 12 business days
 $53.57
C14B
8 X 1.75 T Tread
 $36.36

Part Number:734-1412

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: No Longer Available
 $36.36
Usually ships in 7 - 12 business days
 $36.36
C14C
8 X 1.75 T Tread
 $36.36

Part Number:734-1412

Usually ships in 7 - 12 business days

Usually ships in 7 - 12 business days

Note: No Longer Available
 $36.36
Usually ships in 7 - 12 business days
 $36.36
C14D
Kit-wheel 8 X 2 Bb
 $43.67

Part Number:753-08093

In Stock

In Stock

Note: (Kit Contains Hubcap)
 $43.67
In Stock
 $43.67
C15
Use 938-0102
 $10.08

Part Number:738-0102

In Stock

In Stock

Note: (282 Only)
 $10.08
In Stock
 $10.08
C16
Use 936-0232
 $4.99

Part Number:736-0232

In Stock

In Stock

Note: (Used W/Steel Wheel)
 $4.99
In Stock
 $4.99
 Fig #
Lawn Mower Parts

Repair Guides for MTD Lawn Mower 121-478B087 (1991)

How to Replace a Lawn Mower Blade

Lawn mower blades must be replaced after so many hours of cutting, and the steps in this article explain how to perform this simple parts replacement.

Lawn and Garden Machines and Power Tools

This article lists the major categories of lawn and garden tools and machines, explaining the basic applications, types, and features of each.

How to Replace the Fuel Filters in Your Outdoor Power Equipment

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

How to Winterize Power Tools and Machines

This video explains how to properly winterize power tools and machines for winter storage, increasing the life and performance of seasonal tools.

Questions & Answers for 121-478B087 (1991)

No questions have been asked yet
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