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Troy-Bilt Parts

Troy-Bilt 7t90hw 439cc Engine Replacement Parts For Model 7T90HW

We Sell Only Genuine Troy-Bilt Parts

Popular Parts for 7T90HW

Oil Filter – Part Number: 951-12690 Oil Filter
On Order
$20.67
GASKET-FUEL DRAIN – Part Number: 951-11349A GASKET-FUEL DRAIN
On Order
Minimum Quantity of 2 required
$6.63
WOODRUFF KEY – Part Number: 751P10307A WOODRUFF KEY
Special Order
$6.16
CARBURETOR – Part Number: 651P06415 CARBURETOR
Special Order
$113.11
BOLT-HEX FLANGE M5 – Part Number: 710-09956 BOLT-HEX FLANGE M5
Special Order
$6.16
CYL HEAD GASKET – Part Number: 751P17931 CYL HEAD GASKET
Special Order
$6.51
SEAL-OIL – Part Number: 951-11902A SEAL-OIL
Special Order
$6.16
COOLING FAN – Part Number: 751P17989 COOLING FAN
Special Order
$13.22

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General Assembly Diagram and Parts List for Troy-Bilt Engine
General Assembly
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General Assembly
General Assembly Diagram and Parts List for Troy-Bilt Engine
  • BOLT-M6 X 16 – Part Number: 751-20029
    BOLT-M6 X 16
    Part Number: 751-20029
      Special Order
    $6.16
  • VALVE COVER – Part Number: 951-15654
    VALVE COVER
    Part Number: 951-15654
      Special Order
    $23.81
  • ROCKER ARM ASSEMBL – Part Number: 951-15655
    ROCKER ARM ASSEMBL
    Part Number: 951-15655
      Special Order
    $19.06
  • ROCKER ARM BASE – Part Number: 951-15656
    ROCKER ARM BASE
    Part Number: 951-15656
      Special Order
    $9.53
  • CAP-VALVE – Part Number: 951-14912A
    CAP-VALVE
    Part Number: 951-14912A
      Special Order
    $6.16
  • Valve Spring Seat – Part Number: 951-14911
    Valve Spring Seat
    Part Number: 951-14911
      Special Order
    $9.49
  • Valve Spring – Part Number: 951-12078
    Valve Spring
    Part Number: 951-12078
      Special Order
    $6.32
  • SEAL-INTAKE VALVE – Part Number: 951-11964A
    SEAL-INTAKE VALVE
    Part Number: 951-11964A
      Special Order
    $18.05
  • INTAKE VALVE – Part Number: 951-15923
    INTAKE VALVE
    Part Number: 951-15923
      Special Order
    $25.00
  • EXHAUST VALVE – Part Number: 951-15924
    EXHAUST VALVE
    Part Number: 951-15924
      Special Order
    $39.77
  • BOLT-M10 X 1.25 X – Part Number: 710-09934
    BOLT-M10 X 1.25 X
    Part Number: 710-09934
      Special Order
    $6.16
  • CYLINDER HEAD – Part Number: 751P17928
    CYLINDER HEAD
    Part Number: 751P17928
      Special Order
    $133.79
  • Spark Plug – Part Number: 951-10292A
    Spark Plug
    Part Number: 951-10292A
      On Order
    $8.24
  • STUD:EXH:X90 – Part Number: 910-06299
    STUD:EXH:X90
    Part Number: 910-06299
      Special Order
    $7.42
  • EXHAUST GASKET – Part Number: 951-15658
    EXHAUST GASKET
    Part Number: 951-15658
      Special Order
    $12.08
  • ENGINE SHROUD – Part Number: 951-15659
    ENGINE SHROUD
    Part Number: 951-15659
      Special Order
    $33.44
  • BOLT-M6 X 25 – Part Number: 751-20124
    BOLT-M6 X 25
    Part Number: 751-20124
      Special Order
    $6.16
  • BOLT-M6 X10 – Part Number: 751-20112
    BOLT-M6 X10
    Part Number: 751-20112
      Special Order
    $6.16
  • BOLT-M6 X 14 – Part Number: 710-09774
    BOLT-M6 X 14
    Part Number: 710-09774
      Special Order
    $6.16
  • FLYWHEEL HUB COVER – Part Number: 751P17986A
    FLYWHEEL HUB COVER
    Part Number: 751P17986A
      Special Order
    $6.16
  • BOLT-M6 X 12 – Part Number: 751-20117
    BOLT-M6 X 12
    Part Number: 751-20117
      Special Order
    $6.16
  • THERMAL LEVER – Part Number: 951-15708
    THERMAL LEVER
    Part Number: 951-15708
      Special Order
    $9.22
  • AIR VANE-CHOKE – Part Number: 951-15709
    AIR VANE-CHOKE
    Part Number: 951-15709
      Special Order
    $15.87
  • Stud – Part Number: 951-14734
    Stud
    Part Number: 951-14734
      Special Order
    $9.95
  • INSULATOR – Part Number: 751P17930A
    INSULATOR
    Part Number: 751P17930A
      Special Order
    $13.70
  • O-RING 36 X 2.5 – Part Number: 951-15711
    O-RING 36 X 2.5
    Part Number: 951-15711
      Special Order
    $8.91
  • CHOKE LEVER – Part Number: 951-15715
    CHOKE LEVER
    Part Number: 951-15715
      Special Order
    $7.59
  • BOLT-M6 X 22 – Part Number: 710-09816
    BOLT-M6 X 22
    Part Number: 710-09816
      Special Order
    $6.16
  • Gasket, Carburetor – Part Number: 951-14947
    Gasket, Carburetor
    Part Number: 951-14947
      Special Order
    $12.97
  • CARBURETOR – Part Number: 651P06415
    CARBURETOR
    Part Number: 651P06415
      Special Order
    $113.11
  • Gasket, Air Filter – Part Number: 921-04745
    Gasket, Air Filter
    Part Number: 921-04745
      Special Order
    $11.11
  • AIR FILTER BASE AS – Part Number: 951-15713
    AIR FILTER BASE AS
    Part Number: 951-15713
      Special Order
    $37.64
  • BOLT-M6 X 55 – Part Number: 710-10759
    BOLT-M6 X 55
    Part Number: 710-10759
      Special Order
    $6.16
  • NUT-M6 – Part Number: 751-20110
    NUT-M6
    Part Number: 751-20110
      Special Order
    $6.16
  • AIR FILTER W/PREFI – Part Number: 937-05129A
    AIR FILTER W/PREFI
    Part Number: 937-05129A
      Special Order
    $37.17
  • AIR FILTER COVER A – Part Number: 951-05557
    AIR FILTER COVER A
    Part Number: 951-05557
      Special Order
    $34.66
  • BUSHING - 11X6X30 – Part Number: 951-15714
    BUSHING - 11X6X30
    Part Number: 951-15714
      Special Order
    $7.59
  • CARB FUEL DRAIN GA – Part Number: 721-04974
    CARB FUEL DRAIN GA
    Part Number: 721-04974
      Special Order
    $6.16
  • CHOKE LEVER – Part Number: 951-15715
    CHOKE LEVER
    Part Number: 951-15715
      Special Order
    $7.59
  • SCREW-SELF TAPPING – Part Number: 710-09955
    SCREW-SELF TAPPING
    Part Number: 710-09955
      Special Order
    $6.16
  • CYL HEAD GASKET – Part Number: 751P17931
    CYL HEAD GASKET
    Part Number: 751P17931
      Special Order
    $6.51
  • PUSH ROD - INDIVID – Part Number: 951-15717
    PUSH ROD - INDIVID
    Part Number: 951-15717
      Special Order
    $12.72
  • TAPPET – Part Number: 951-11962A
    TAPPET
    Part Number: 951-11962A
      Special Order
    $10.67
  • PISTON RING SET – Part Number: 951-05248
    PISTON RING SET
    Part Number: 951-05248
      Special Order
    $41.69
  • PISTON – Part Number: 951-14905
    PISTON
    Part Number: 951-14905
      Special Order
    $73.78
  • PISTON PIN – Part Number: 911-06415
    PISTON PIN
    Part Number: 911-06415
      Special Order
    $16.24
  • PISTON PIN SNAP RI – Part Number: 951-11953A
    PISTON PIN SNAP RI
    Part Number: 951-11953A
      Special Order
    $6.20
  • CONNECTING ROD ASS – Part Number: 951-15775
    CONNECTING ROD ASS
    Part Number: 951-15775
      Special Order
    $57.88
  • WIRE ROD – Part Number: 951-15720
    WIRE ROD
    Part Number: 951-15720
      Special Order
    $7.59
  • Pin,10x12 – Part Number: 915-05026
    Pin,10x12
    Part Number: 915-05026
      Special Order
    $7.98
  • BOLT-HEX FLANGE M8 – Part Number: 710-09994
    BOLT-HEX FLANGE M8
    Part Number: 710-09994
      Special Order
    $6.16
  • ELECTRIC STARTER A – Part Number: 951-05549A
    ELECTRIC STARTER A
    Part Number: 951-05549A
      Special Order
    $432.14
  • HOOK – Part Number: 951-15721
    HOOK
    Part Number: 951-15721
      Special Order
    $8.87
  • Regulator – Part Number: 925-06299
    Regulator
    Part Number: 925-06299
      Special Order
    $57.71
  • IDLE SPRING – Part Number: 951-16206
    IDLE SPRING
    Part Number: 951-16206
      Special Order
    $9.34
  • HKY PART – Part Number: 712-04276A
    HKY PART
    Part Number: 712-04276A
      No Longer Available
  • Washer – Part Number: 736-05109
    Washer
    Part Number: 736-05109
      Special Order
    $9.70
  • BOLT-HOOK – Part Number: 710-09935
    BOLT-HOOK
    Part Number: 710-09935
      Special Order
    $6.16
  • SHROUD – Part Number: 751P17929
    SHROUD
    Part Number: 751P17929
      Special Order
    $15.33
  • SCREW-SELF TAPPING – Part Number: 710-09995
    SCREW-SELF TAPPING
    Part Number: 710-09995
      Special Order
    $6.16
  • SHROUD – Part Number: 751P17966
    SHROUD
    Part Number: 751P17966
      Special Order
    $9.18
  • STUD M6X9 – Part Number: 751P17967A
    STUD M6X9
    Part Number: 751P17967A
      Special Order
    $6.16
  • Nut, M20x1.5 – Part Number: 912-05102
    Nut, M20x1.5
    Part Number: 912-05102
      Special Order
    $13.34
  • FLYWHEEL – Part Number: 751P17968
    FLYWHEEL
    Part Number: 751P17968
      Special Order
    $146.57
  • BOLT-M5 X 28 – Part Number: 710-10176
    BOLT-M5 X 28
    Part Number: 710-10176
      Special Order
    $6.16
  • ALTERNATOR – Part Number: 951-15726
    ALTERNATOR
    Part Number: 951-15726
      Special Order
    $121.87
  • OIL SEAL - 35X52X7 – Part Number: 937-05134
    OIL SEAL - 35X52X7
    Part Number: 937-05134
      Special Order
    $12.72
  • BOLT-HEX FLANGE M5 – Part Number: 710-09956
    BOLT-HEX FLANGE M5
    Part Number: 710-09956
      Special Order
    $6.16
  • WIRE PLATE – Part Number: 951-15727
    WIRE PLATE
    Part Number: 951-15727
      Special Order
    $8.29
  • Rubber Shock Pad – Part Number: 750-05314
    Rubber Shock Pad
    Part Number: 750-05314
      Special Order
    $6.16
  • Wire Board – Part Number: 951-14922
    Wire Board
    Part Number: 951-14922
      Special Order
    $7.83
  • CRANKCASE – Part Number: 751P17969
    CRANKCASE
    Part Number: 751P17969
      Special Order
    $252.30
  • BOLT-M6 X 28 – Part Number: 751-20113
    BOLT-M6 X 28
    Part Number: 751-20113
      Special Order
    $6.16
  • IGNITION COIL – Part Number: 994-00136A
    IGNITION COIL
    Part Number: 994-00136A
      Special Order
    $100.14
  • BREATHER COVER – Part Number: 951-15729
    BREATHER COVER
    Part Number: 951-15729
      Special Order
    $15.87
  • BREATHER COVER GAS – Part Number: 951-15730
    BREATHER COVER GAS
    Part Number: 951-15730
      Special Order
    $12.72
  • Breather Spring – Part Number: 732-04718
    Breather Spring
    Part Number: 732-04718
      Special Order
    $6.86
  • Breather Valve – Part Number: 951-11614
    Breather Valve
    Part Number: 951-11614
      Special Order
    $6.40
  • DIPSTICK ASM – Part Number: 951-15731A
    DIPSTICK ASM
    Part Number: 951-15731A
      Special Order
    $31.76
  • O-Ring, Dipstick – Part Number: 921-04739
    O-Ring, Dipstick
    Part Number: 921-04739
      Special Order
    $7.83
  • O-RING – Part Number: 921-04946
    O-RING
    Part Number: 921-04946
      Special Order
    $6.35
  • BRTHR HOSE – Part Number: 951-15732
    BRTHR HOSE
    Part Number: 951-15732
      Special Order
    $28.62
  • THROTTLE DAMPENING – Part Number: 951-15733
    THROTTLE DAMPENING
    Part Number: 951-15733
      Special Order
    $7.27
  • THROTTLE LINKAGE – Part Number: 951-15734
    THROTTLE LINKAGE
    Part Number: 951-15734
      Special Order
    $10.48
  • GOVERNOR GEAR SHAF – Part Number: 951-15735
    GOVERNOR GEAR SHAF
    Part Number: 951-15735
      Special Order
    $9.22
  • SEAL-OIL – Part Number: 951-11902A
    SEAL-OIL
    Part Number: 951-11902A
      Special Order
    $6.16
  • Cotter Pin – Part Number: 714-04078
    Cotter Pin
    Part Number: 714-04078
      Special Order
    $6.63
  • GOVERNOR SPRING – Part Number: 951-15738
    GOVERNOR SPRING
    Part Number: 951-15738
      Special Order
    $15.87
  • GOVERNOR ARM ASSEM – Part Number: 951-15739
    GOVERNOR ARM ASSEM
    Part Number: 951-15739
      Special Order
    $11.50
  • CONTROL BRACKET AS – Part Number: 951-15740
    CONTROL BRACKET AS
    Part Number: 951-15740
      Special Order
    $23.50
  • HOSE CLAMP-CARB – Part Number: 951-11700A
    HOSE CLAMP-CARB
    Part Number: 951-11700A
      Special Order
    $6.53
  • Fuel Hose, 6.3x12.5x270 – Part Number: 993-00171
    Fuel Hose, 6.3x12.5x270
    Part Number: 993-00171
      Special Order
    $14.71
  • CLAMP-FUEL LINE SU – Part Number: 723-04071A
    CLAMP-FUEL LINE SU
    Part Number: 723-04071A
      Special Order
    $6.16
  • Plug – Part Number: 951-14091
    Plug
    Part Number: 951-14091
      Special Order
    $7.42
  • CLIP – Part Number: 951-15741
    CLIP
    Part Number: 951-15741
      Special Order
    $6.35
  • CRANKCASE GASKET – Part Number: 951-15742
    CRANKCASE GASKET
    Part Number: 951-15742
      Special Order
    $28.62
  • PIN-DOWEL 9 X 14 – Part Number: 715-04096A
    PIN-DOWEL 9 X 14
    Part Number: 715-04096A
      Special Order
    $6.63
  • CRANKSHAFT – Part Number: 751P17970
    CRANKSHAFT
    Part Number: 751P17970
      Special Order
    $160.24
  • WOODRUFF KEY – Part Number: 751P10307A
    WOODRUFF KEY
    Part Number: 751P10307A
      Special Order
    $6.16
  • BALANCE SHAFT – Part Number: 751P17971
    BALANCE SHAFT
    Part Number: 751P17971
      Special Order
    $43.76
  • Washer, 17.2x1x26 – Part Number: 936-05112
    Washer, 17.2x1x26
    Part Number: 936-05112
      Special Order
    $7.98
  • CAMSHAFT ASSEMBLY – Part Number: 951-15745
    CAMSHAFT ASSEMBLY
    Part Number: 951-15745
      Special Order
    $76.92
  • GOVERNOR GEAR – Part Number: 951-15746
    GOVERNOR GEAR
    Part Number: 951-15746
      Special Order
    $31.76
  • Breather Cover – Part Number: 951-14895
    Breather Cover
    Part Number: 951-14895
      Special Order
    $8.50
  • Spring – Part Number: 932-05290
    Spring
    Part Number: 932-05290
      Special Order
    $7.98
  • OIL PUMP STEEL BAL – Part Number: 951-15588
    OIL PUMP STEEL BAL
    Part Number: 951-15588
      Special Order
    $6.35
  • CRANKCASE COVER – Part Number: 951-15747
    CRANKCASE COVER
    Part Number: 951-15747
      Special Order
    $204.68
  • PIPE-CONNECTION – Part Number: 751P20788
    PIPE-CONNECTION
    Part Number: 751P20788
      Special Order
    $6.16
  • WASHER - 6.2X1.5X1 – Part Number: 951-15748
    WASHER - 6.2X1.5X1
    Part Number: 951-15748
      Special Order
    $6.16
  • Oil Filter – Part Number: 951-12690
    Oil Filter
    Part Number: 951-12690
    ★★★★★
    ★★★★★
    (4)
      On Order
    $20.67
  • Oil Pump – Part Number: 951-05247
    Oil Pump
    Part Number: 951-05247
      Special Order
    $77.72
  • Gasket, Oil Pump – Part Number: 921-04742
    Gasket, Oil Pump
    Part Number: 921-04742
      Special Order
    $11.11
  • Oil Pump – Part Number: 951-14896
    Oil Pump
    Part Number: 951-14896
      Special Order
    $8.50
  • Bolt M8x40 – Part Number: 710-05306
    Bolt M8x40
    Part Number: 710-05306
      Special Order
    $6.16
  • Breather Filter Screen – Part Number: 937-05069
    Breather Filter Screen
    Part Number: 937-05069
      Special Order
    $7.62
  • OIL SCREEN PLATE – Part Number: 951-15749
    OIL SCREEN PLATE
    Part Number: 951-15749
      Special Order
    $7.87
  • WASHER - 35.4X1X52 – Part Number: 951-15750
    WASHER - 35.4X1X52
    Part Number: 951-15750
      Special Order
    $6.35
  • HOOK-LIFT – Part Number: 751P17972A
    HOOK-LIFT
    Part Number: 751P17972A
      Special Order
    $6.16
  • CLIP – Part Number: 751P17987
    CLIP
    Part Number: 751P17987
      Special Order
    $6.16
  • COOLING FAN – Part Number: 751P17989
    COOLING FAN
    Part Number: 751P17989
      Special Order
    $13.22
  • CHOKE SHAFT – Part Number: 951-16207
    CHOKE SHAFT
    Part Number: 951-16207
      Special Order
    $14.50
  • CHOKE RETURN SPRIN – Part Number: 951-16208
    CHOKE RETURN SPRIN
    Part Number: 951-16208
      Special Order
    $12.49
  • WASHER-LOCK – Part Number: 736-04638A
    WASHER-LOCK
    Part Number: 736-04638A
      Special Order
    $6.16
  • FLOAT PIN – Part Number: 711-06036
    FLOAT PIN
    Part Number: 711-06036
      Special Order
    $6.16
  • NEEDLE VALVE – Part Number: 751P14036A
    NEEDLE VALVE
    Part Number: 751P14036A
      Special Order
    $9.34
  • SPRING-NEEDLE VLV – Part Number: 732P05251A
    SPRING-NEEDLE VLV
    Part Number: 732P05251A
      Special Order
    $6.16
  • FUEL BOWL GASKET – Part Number: 951-11970
    FUEL BOWL GASKET
    Part Number: 951-11970
      Special Order
    $10.79
  • Washer – Part Number: 736-04629
    Washer
    Part Number: 736-04629
      Special Order
    $6.16
  • CARBURETOR SOLENOI – Part Number: 951-14972
    CARBURETOR SOLENOI
    Part Number: 951-14972
      Special Order
    $66.56
  • O RING-SEAT/FUEL B – Part Number: 951-12772
    O RING-SEAT/FUEL B
    Part Number: 951-12772
      Special Order
    $6.16
  • GASKET-FUEL DRAIN – Part Number: 951-11349A
    GASKET-FUEL DRAIN
    Part Number: 951-11349A
      On Order
    Minimum Quantity of 2 required
    $6.63
  • FUEL BOWL – Part Number: 751P16210
    FUEL BOWL
    Part Number: 751P16210
      Special Order
    $10.84
  • SCREW-SPEED IDLE – Part Number: 710P06038A
    SCREW-SPEED IDLE
    Part Number: 710P06038A
      Special Order
    $6.16
  • FIBER O-RING – Part Number: 736P05037
    FIBER O-RING
    Part Number: 736P05037
      Special Order
    $6.16

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Our customer service team are at the ready daily to answer your part and product questions. We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.