Dirt Bike Engine
Explore our selection for dirt bike parts for adding horsepower or reliability to a dirt bike's engine. We feature engine parts from Wiseco, Vertex, and more common engine part manufacturers. Get new pistons and gasket kits for re-freshening engines to withstand any conditions you put your bike through!
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Dirt Bike Cams and Parts
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Dirt Bike Connecting Rods and Parts
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Dirt Bike Crankcases and Parts
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Dirt Bike Crankshafts and Parts
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Dirt Bike Cylinder Heads and Parts
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Dirt Bike Cylinders and Parts
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Dirt Bike Engine Bearings
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Dirt Bike Engine Covers
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Dirt Bike Engine Gaskets and Kits
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Dirt Bike Engine Rebuild Kits
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Dirt Bike Engine Seals - Orings and Kits
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Dirt Bike Engine Valves and Parts
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Dirt Bike Flywheel and Rod Assemblies
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Dirt Bike Fuel Filters
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Dirt Bike Miscellaneous Engine Parts
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Dirt Bike Oil Coolers
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Dirt Bike Oil Filters
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Dirt Bike Oil Lines
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Dirt Bike Oil Pumps
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Dirt Bike Piston and Ring Kits
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Dirt Bike Piston Rings Only
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Dirt Bike Wrist Pins and Circlips
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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K&S TECHNOLOGIES Water Pump Repair Kit - CR85R 75-1008
K&S TECHNOLOGIES
$31.95K&S TECHNOLOGIES Water Pump Repair Kit CR85R 75-1008Each kit includes all necessary gaskets, washers, seals and O-rings; kit contents vary by model9342879- SKU:
- 9342879
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- WATER PUMP REPAIR
- UNITS:
- KIT
$31.95 -
On Sale
KURYAKYN Spark Plug Cover for Evolution 8315
KURYAKYN
MSRP: $54.99Now: $53.09Was: $58.99KURYAKYN Spark Plug Cover for Evolution 8315Covers add a classy touch to any motor, Held in position with setscrews to prevent noisy rattling, Spark plugs may be removed without cover removal on Twin Cam modelsDS305024- SKU:
- DS305024
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- MODEL:
- SCORPION™
- TYPE:
- HEAD BOLT
- TYPE:
- SPARK PLUG
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- UNITS:
- PAIR
MSRP: $54.99Now: $53.09Was: $58.99Qty in Cart: 0Quantity:Price:MSRP: $54.99Now: $53.09Was: $58.99Subtotal: -
On Sale
KURYAKYN Tappet Block Covers - EVO/Big Twin 8123
KURYAKYN
MSRP: $83.99Now: $80.99Was: $89.99KURYAKYN Tappet Block Covers EVO/Big Twin 8123Includes chrome hardware, Install in minutes, Show-chromed die-cast coverDS376493- SKU:
- DS376493
- Availability:
- Ships Same Business Day
- Weight:
- 1.19 LBS
- PRODUCT NAME:
- COVER
- MATERIAL:
- DIE-CAST
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- STREET
- TYPE:
- TAPPET BLOCK
- UNITS:
- PAIR
MSRP: $83.99Now: $80.99Was: $89.99Qty in Cart: 0Quantity:Price:MSRP: $83.99Now: $80.99Was: $89.99Subtotal: -
JAMES GASKET Starter Shaft Seal - Big Twin 12053-A
JAMES GASKET
$32.20JAMES GASKET Starter Shaft Seal Big Twin 12053-AMade in the U.S.A.DS194089- SKU:
- DS194089
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- PRODUCT NAME:
- SEAL
- APPLICATION:
- STARTER SHAFT
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
$32.20 -
JAMES GASKET Countershaft Nut with Seal - Big Twin 35211-36DL
JAMES GASKET
$51.95JAMES GASKET Countershaft Nut with Seal Big Twin 35211-36DLOnly James Gaskets' Super Nut™ improves the sealing ability on all transmission shafts at an affordable price, Helps avoid transmission oil leakage from main drive gear bushing wearDS194076- SKU:
- DS194076
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- TYPE:
- SUPER NUT
- APPLICATION:
- SPROCKET
- PRODUCT NAME:
- NUT
- APPLICATION:
- TRANSMISSION
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$51.95 -
JAMES GASKET Shifter Shaft Inner Seal - Big Twin 12066
JAMES GASKET
$35.88JAMES GASKET Shifter Shaft Inner Seal Big Twin 12066JAMES GASKET Shifter Shaft Inner Seal - Big TwinDS194084- SKU:
- DS194084
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- PRODUCT NAME:
- SEAL
- APPLICATION:
- STARTER SHAFT
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
$35.88 -
JAMES GASKET Lower Pushrod Quad Seal 11145-X
JAMES GASKET
$13.57JAMES GASKET Lower Pushrod Quad Seal 11145-XMade in the U.S.A.DS194484- SKU:
- DS194484
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- PRODUCT NAME:
- X-RING
- APPLICATION:
- TAPPET GUIDE
- MATERIAL:
- RUBBER
- RIDING STYLE:
- STREET
- UNITS:
- 25 PACK
- APPLICATION:
- PUSHROD COVER
- TYPE:
- QUAD SEAL
$13.57 -
JAMES GASKET Pushrod Seal Set - Shovelhead 11133-FLH
JAMES GASKET
$11.95JAMES GASKET Pushrod Seal Set Shovelhead 11133-FLHConvenient and efficient way to sell the correct amount of seals or O-rings for a rebuild or cam change, James complete kits are neatly packaged for easy display, Made in the U.S.A.DS194486- SKU:
- DS194486
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- X-RING
- TYPE:
- QUAD SEAL
- APPLICATION:
- PUSHROD TUBE
- UNITS:
- KIT
$11.95 -
JAMES GASKET Pushrod Seal Set - XL 11190-V2
JAMES GASKET
$17.95JAMES GASKET Pushrod Seal Set XL 11190-V2Convenient and efficient way to sell the correct amount of seals or O-rings for a rebuild or cam change, James complete kits are neatly packaged for easy display, Made in the U.S.A.DS194487- SKU:
- DS194487
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- RIDING STYLE:
- STREET
- APPLICATION:
- PUSHROD COVER
- PRODUCT NAME:
- SEAL KIT
- UNITS:
- KIT
$17.95 -
JAMES GASKET Pushrod Seal Set - XL 11101-XL
JAMES GASKET
$8.95JAMES GASKET Pushrod Seal Set XL 11101-XLConvenient and efficient way to sell the correct amount of seals or O-rings for a rebuild or cam change, James complete kits are neatly packaged for easy display, Made in the U.S.A.DS194488- SKU:
- DS194488
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- UNITS:
- KIT
- APPLICATION:
- PUSHROD TUBE
- PRODUCT NAME:
- O-RING
- RIDING STYLE:
- STREET
$8.95 -
JAMES GASKET Pushrod Seal Set - XL 17955-36-XL
JAMES GASKET
$14.95JAMES GASKET Pushrod Seal Set XL 17955-36-XLConvenient and efficient way to sell the correct amount of seals or O-rings for a rebuild or cam change, James complete kits are neatly packaged for easy display, Made in the U.S.A.DS194489- SKU:
- DS194489
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- MATERIAL:
- CORK
- UNITS:
- KIT
- PRODUCT NAME:
- SEAL KIT
- RIDING STYLE:
- STREET
- APPLICATION:
- PUSHROD COVER
$14.95 -
JAMES GASKET Pushrod Seal Set - Big Twin 11133-FL
JAMES GASKET
$11.95JAMES GASKET Pushrod Seal Set Big Twin 11133-FLConvenient and efficient way to sell the correct amount of seals or O-rings for a rebuild or cam change, James complete kits are neatly packaged for easy display, Made in the U.S.A.DS194491- SKU:
- DS194491
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- APPLICATION:
- PUSHROD TUBE
- MATERIAL:
- RUBBER
- PRODUCT NAME:
- SEAL KIT
- UNITS:
- KIT
- RIDING STYLE:
- STREET
$11.95 -
JAMES GASKET Generator End Seal - XL/Big Twin 12002
JAMES GASKET
$18.87JAMES GASKET Generator End Seal XL/Big Twin 12002Made in the U.S.A.DS194492- SKU:
- DS194492
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- APPLICATION:
- GEAR END
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
- PRODUCT NAME:
- SEAL
$18.87 -
JAMES GASKET Trans Top Cover Gasket - Softail 34904-00-X
JAMES GASKET
$29.33JAMES GASKET Trans Top Cover Gasket Softail 34904-00-XMade in the U.S.A.20111212- SKU:
- 20111212
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- UNITS:
- 5 PACK
- FEATURES:
- BEADED
- TYPE:
- TRANSMISSION TOP COVER
- MATERIAL:
- PAPER
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- GASKET
$29.33 -
JAMES GASKET Rubber/Metal Base Gasket - Big Twin 16774-21-X
JAMES GASKET
$44.95JAMES GASKET Rubber/Metal Base Gasket Big Twin 16774-21-XRequire no gasket sealer, Made in the U.S.A.20111213- SKU:
- 20111213
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- GASKET
- THICKNESS IMPERIAL:
- STOCK
- FEATURES:
- BEADED
- THICKNESS METRIC:
- STOCK
- TYPE:
- CYLINDER BASE
- UNITS:
- PAIR
- MATERIAL:
- FOAMET
- RIDING STYLE:
- STREET
- BORE SIZE IMPERIAL:
- 3.437'
$44.95 -
JAMES GASKET Intake Manifold Spacer - 1.86" 29250-98-A
JAMES GASKET
$29.95JAMES GASKET Intake Manifold Spacer 1.86" 29250-98-AKit includes 3/8" fiber insulator block and gaskets, Designed to reduce the risk of boiling fuel in the carb, Made in the U.S.A.20111214- SKU:
- 20111214
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- UNITS:
- KIT
- PRODUCT NAME:
- INSULATOR BLOCK
- RIDING STYLE:
- STREET
- TYPE:
- CARBURETOR
$29.95 -
JAMES GASKET Cam Cover Gasket - Big Twin 25225-93-XM
JAMES GASKET
$10.95JAMES GASKET Cam Cover Gasket Big Twin 25225-93-XMReplacement gaskets for cam chests20112093- SKU:
- 20112093
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- FEATURES:
- BEADED
- PRODUCT NAME:
- GASKET
- TYPE:
- CAM COVER
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- MATERIAL:
- SILICONE
- MATERIAL:
- STEEL
$10.95 -
JAMES GASKET Cam Cover Gasket - Big Twin 25225-70-XM
JAMES GASKET
$10.95JAMES GASKET Cam Cover Gasket Big Twin 25225-70-XMReplacement gaskets for cam chests20112094- SKU:
- 20112094
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- RIDING STYLE:
- STREET
- THICKNESS:
- 0,91 MM (0,036')
- PRODUCT NAME:
- GASKET
- THICKNESS METRIC:
- 0.91 MM
- FEATURES:
- BEADED
- TYPE:
- CAM COVER
- UNITS:
- EACH
- MATERIAL:
- SILICONE
- MATERIAL:
- STEEL
- THICKNESS IMPERIAL:
- 0,036'
$10.95 -
JAMES GASKET Cam Quick Change - Big Twin 25225-70-KX
JAMES GASKET
$39.95JAMES GASKET Cam Quick Change Big Twin 25225-70-KXKits include all necessary gaskets, seals, O-rings and cork washers for doing a cam change20112095- SKU:
- 20112095
- Availability:
- Ships Same Business Day
- Weight:
- 0.18 LBS
- MATERIAL:
- STEEL
- UNITS:
- KIT
- TYPE:
- CAM CHANGE
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- STREET
$39.95 -
JAMES GASKET Cam Quick Change - Big Twin 25225-93-KX
JAMES GASKET
$39.95JAMES GASKET Cam Quick Change Big Twin 25225-93-KXKits include all necessary gaskets, seals, O-rings and cork washers for doing a cam change20112096- SKU:
- 20112096
- Availability:
- Ships Same Business Day
- Weight:
- 0.14 LBS
- RIDING STYLE:
- STREET
- TYPE:
- CAM CHANGE
- MATERIAL:
- STEEL
- PRODUCT NAME:
- GASKET KIT
- UNITS:
- KIT
$39.95
