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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DRAG SPECIALTIES Piston - Evolution 750740-BX-LB1
DRAG SPECIALTIES
$94.95DRAG SPECIALTIES Piston Evolution 750740-BX-LB1OEM quality cast aluminum alloy construction, Some fitments feature pistons with a coating that extends piston life, reduces friction and allows for cooler running engines, Ideal for OEM replacement,...DS750740- SKU:
- DS750740
- Availability:
- Ships Same Business Day
- Weight:
- 2.63 LBS
- BORE OVERSIZE - IMPERIAL:
- +0.005'
- PRODUCT NAME:
- PISTON
- BORE - OVERSIZE:
- +0,005'
- BORE SIZE IMPERIAL:
- 3.503'
- STROKE LENGTH IMPERIAL:
- 4-1/4'
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- 8.5:1
- PISTON DIAMETER IMPERIAL:
- 3.503'
- PISTON MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
$94.95 -
DRAG SPECIALTIES Piston - Evolution 750741-BX-LB1
DRAG SPECIALTIES
$94.95DRAG SPECIALTIES Piston Evolution 750741-BX-LB1OEM quality cast aluminum alloy construction, Some fitments feature pistons with a coating that extends piston life, reduces friction and allows for cooler running engines, Ideal for OEM replacement,...DS750741- SKU:
- DS750741
- Availability:
- Ships Same Business Day
- Weight:
- 2.63 LBS
- BORE SIZE IMPERIAL:
- 3.508'
- COMPRESSION RATIO IMPERIAL:
- 8.5:1
- RIDING STYLE:
- STREET
- STROKE LENGTH IMPERIAL:
- 4-1/4'
- BORE - OVERSIZE:
- +0,010'
- BORE OVERSIZE - IMPERIAL:
- +0.010'
- PISTON DIAMETER IMPERIAL:
- 3.508'
- PISTON MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- PISTON
- UNITS:
- KIT
$94.95 -
DRAG SPECIALTIES Piston - Evolution 750742-BX-LB1
DRAG SPECIALTIES
$94.95DRAG SPECIALTIES Piston Evolution 750742-BX-LB1OEM quality cast aluminum alloy construction, Some fitments feature pistons with a coating that extends piston life, reduces friction and allows for cooler running engines, Ideal for OEM replacement,...DS750742- SKU:
- DS750742
- Availability:
- Ships Same Business Day
- Weight:
- 2.63 LBS
- BORE SIZE IMPERIAL:
- 3.518'
- COMPRESSION RATIO IMPERIAL:
- 8.5:1
- RIDING STYLE:
- STREET
- BORE OVERSIZE - IMPERIAL:
- +0.020'
- PISTON DIAMETER IMPERIAL:
- 3.518'
- PISTON MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- PISTON
- UNITS:
- KIT
- BORE - OVERSIZE:
- +0,020'
- STROKE LENGTH IMPERIAL:
- 4-1/4'
$94.95 -
DRAG SPECIALTIES Piston - Evolution 750743-BX-LB1
DRAG SPECIALTIES
$94.95DRAG SPECIALTIES Piston Evolution 750743-BX-LB1OEM quality cast aluminum alloy construction, Some fitments feature pistons with a coating that extends piston life, reduces friction and allows for cooler running engines, Ideal for OEM replacement,...DS750743- SKU:
- DS750743
- Availability:
- Ships Same Business Day
- Weight:
- 2.69 LBS
- BORE SIZE IMPERIAL:
- 3.528'
- PRODUCT NAME:
- PISTON
- BORE - OVERSIZE:
- +0,030'
- BORE OVERSIZE - IMPERIAL:
- +0.030'
- PISTON MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- COMPRESSION RATIO IMPERIAL:
- 8.5:1
- STROKE LENGTH IMPERIAL:
- 4-1/4'
- PISTON DIAMETER IMPERIAL:
- 3.528'
- UNITS:
- KIT
$94.95 -
DRAG SPECIALTIES Rocker Arm - Rear Exhaust/Front Intake - Shovelhead 17360-66-BX
DRAG SPECIALTIES
$48.95DRAG SPECIALTIES Rocker Arm Rear Exhaust/Front Intake Shovelhead 17360-66-BXOEM style rocker armsDS193800- SKU:
- DS193800
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- APPLICATION:
- EXHAUST
- MOUNTING POSITION:
- FRONT INTAKE
- APPLICATION:
- INTAKE
- MOUNTING POSITION:
- REAR EXHAUST
- PRODUCT NAME:
- ROCKER ARM
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$48.95 -
DRAG SPECIALTIES Rocker Arm - Front Exhaust/Rear Intake - Shovelhead 17375-66-BX
DRAG SPECIALTIES
$48.95DRAG SPECIALTIES Rocker Arm Front Exhaust/Rear Intake Shovelhead 17375-66-BXOEM style rocker armsDS193801- SKU:
- DS193801
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- APPLICATION:
- INTAKE
- MOUNTING POSITION:
- FRONT EXHAUST
- PRODUCT NAME:
- ROCKER ARM
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR INTAKE
- RIDING STYLE:
- STREET
- APPLICATION:
- EXHAUST
$48.95 -
DRAG SPECIALTIES Connecting Rod Assembly - Big Twin 24281-41A-BXLB1
DRAG SPECIALTIES
$334.95DRAG SPECIALTIES Connecting Rod Assembly Big Twin 24281-41A-BXLB1Rod Sets, Heavy-duty replacements, perfect for stock motors, Meets or exceeds OEM specifications, Come completely fitted and ready to install, Complete set includes a two-hole crankpin,...DS194660- SKU:
- DS194660
- Availability:
- Ships Same Business Day
- Weight:
- 4.50 LBS
- PRODUCT NAME:
- CONNECTING ROD ASSEMBLY
- RIDING STYLE:
- STREET
- STYLE:
- HEAVY DUTY
- MATERIAL:
- STEEL
- UNITS:
- SET
$334.95Qty in Cart: 0Quantity:Price:$334.95Subtotal: -
DRAG SPECIALTIES Connecting Rod Assembly - Big Twin 24281-74A-BXLB1
DRAG SPECIALTIES
$334.95DRAG SPECIALTIES Connecting Rod Assembly Big Twin 24281-74A-BXLB1Rod Sets, Heavy-duty replacements, perfect for stock motors, Meets or exceeds OEM specifications, Come completely fitted and ready to install, Complete set includes a two-hole crankpin,...DS194661- SKU:
- DS194661
- Availability:
- Ships Same Business Day
- Weight:
- 4.69 LBS
- PRODUCT NAME:
- CONNECTING ROD ASSEMBLY
- RIDING STYLE:
- STREET
- UNITS:
- SET
- MATERIAL:
- STEEL
- STYLE:
- HEAVY DUTY
$334.95Qty in Cart: 0Quantity:Price:$334.95Subtotal: -
DRAG SPECIALTIES Connecting Rod Assembly - XL 2427580A-BX-LB1
DRAG SPECIALTIES
$334.95DRAG SPECIALTIES Connecting Rod Assembly XL 2427580A-BX-LB1Rod Sets, Heavy-duty replacements, perfect for stock motors, Meets or exceeds OEM specifications, Come completely fitted and ready to install, Complete set includes a two-hole crankpin, aluminum...DS194663- SKU:
- DS194663
- Availability:
- Ships Same Business Day
- Weight:
- 4.13 LBS
$334.95Qty in Cart: 0Quantity:Price:$334.95Subtotal: -
DRAG SPECIALTIES Connecting Rod Assembly - XL 2427586A-BX-LB1
DRAG SPECIALTIES
$348.95DRAG SPECIALTIES Connecting Rod Assembly XL 2427586A-BX-LB1Rod Sets, Heavy-duty replacements, perfect for stock motors, Meets or exceeds OEM specifications, Come completely fitted and ready to install, Complete set includes a two-hole crankpin, aluminum...DS194664- SKU:
- DS194664
- Availability:
- Ships Same Business Day
- Weight:
- 3.88 LBS
- UNITS:
- SET
- MATERIAL:
- STEEL
- PRODUCT NAME:
- CONNECTING ROD ASSEMBLY
- STYLE:
- HEAVY DUTY
- RIDING STYLE:
- STREET
$348.95 -
DRAG SPECIALTIES Connecting Rod Assembly - XL 24275-57-BX-LB1
DRAG SPECIALTIES
$334.95DRAG SPECIALTIES Connecting Rod Assembly XL 24275-57-BX-LB1Rod Sets, Heavy-duty replacements, perfect for stock motors, Meets or exceeds OEM specifications, Come completely fitted and ready to install, Complete set includes a two-hole crankpin, aluminum...DS194665- SKU:
- DS194665
- Availability:
- Ships Same Business Day
- Weight:
- 4.25 LBS
- STYLE:
- HEAVY DUTY
- UNITS:
- SET
- MATERIAL:
- STEEL
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- CONNECTING ROD ASSEMBLY
$334.95 -
DRAG SPECIALTIES Rocker Arm - Rear Exhaust/Front Intake 17360-83-HC3
DRAG SPECIALTIES
$62.95DRAG SPECIALTIES Rocker Arm Rear Exhaust/Front Intake 17360-83-HC3OEM style rocker armsDS193833- SKU:
- DS193833
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- RIDING STYLE:
- STREET
- APPLICATION:
- EXHAUST
- APPLICATION:
- INTAKE
- MOUNTING POSITION:
- FRONT INTAKE
- MOUNTING POSITION:
- REAR EXHAUST
- PRODUCT NAME:
- ROCKER ARM
- UNITS:
- EACH
$62.95 -
DRAG SPECIALTIES Rocker Arm - Front Exhaust/Rear Intake 17375-83-HC3
DRAG SPECIALTIES
$62.95DRAG SPECIALTIES Rocker Arm Front Exhaust/Rear Intake 17375-83-HC3OEM style rocker armsDS193834- SKU:
- DS193834
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- MOUNTING POSITION:
- REAR INTAKE
- RIDING STYLE:
- STREET
- APPLICATION:
- EXHAUST
- APPLICATION:
- INTAKE
- MOUNTING POSITION:
- FRONT EXHAUST
- PRODUCT NAME:
- ROCKER ARM
- UNITS:
- EACH
$62.95 -
DRAG SPECIALTIES Lifter Block - Black - Shovelhead 20489BK-BX-LB1
DRAG SPECIALTIES
$162.95DRAG SPECIALTIES Lifter Block Black Shovelhead 20489BK-BX-LB1Come complete with two sets of Allen cap screws (1/4"-24 for 66-E76 and 1/4"-20 for L76-84), completely machined and ready for installation, Made from durable cast iron and finished in either...DS194024- SKU:
- DS194024
- Availability:
- Ships Same Business Day
- Weight:
- 3.75 LBS
- BASE COLOR:
- BLACK
- PRODUCT NAME:
- LIFTER BLOCK
- COLOR/FINISH:
- BLACK
- MATERIAL:
- CAST IRON
- RIDING STYLE:
- STREET
- UNITS:
- PAIR
$162.95 -
DRAG SPECIALTIES Connecting Rod Assembly - 2 Piece Set 84589
DRAG SPECIALTIES
$475.95DRAG SPECIALTIES Connecting Rod Assembly 2 Piece Set 84589Rod Sets, Heavy-duty replacements, perfect for stock motors, Meets or exceeds OEM specifications, Come completely fitted and ready to install, Complete set includes a two-hole crankpin, aluminum...9230467- SKU:
- 9230467
- Availability:
- Ships Same Business Day
- Weight:
- 5.65 LBS
- MATERIAL:
- STEEL
- PRODUCT NAME:
- CONNECTING ROD ASSEMBLY
- RIDING STYLE:
- STREET
- STYLE:
- HEAVY DUTY
- UNITS:
- SET
$475.95 -
DRAG SPECIALTIES Cylinder - TC88 - 3.75" - Black - Highlighted Fins 88187
DRAG SPECIALTIES
$322.95DRAG SPECIALTIES Cylinder TC88 3.75" Black Highlighted Fins 88187OEM black texture powder-coat with highlighted fins, Excellent for stock replacement9310710- SKU:
- 9310710
- Availability:
- Ships Same Business Day
- Weight:
- 11.30 LBS
- COLOR/FINISH:
- HIGHLIGHTED FINS
- DISPLACEMENT:
- 96'
- BORE SIZE IMPERIAL:
- 3.435'
- MATERIAL:
- CAST
- PRODUCT NAME:
- CYLINDER
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- POWDER-COATED
- DISPLACEMENT:
- 88'
- MATERIAL:
- ALUMINUM
- MATERIAL:
- IRON
- UNITS:
- EACH
$322.95 -
DRAG SPECIALTIES Cylinder - TC103 - 3.875" 88461
DRAG SPECIALTIES
$204.95DRAG SPECIALTIES Cylinder TC103 3.875" 88461OEM black texture powder-coat with highlighted fins, Excellent for stock replacement9310822- SKU:
- 9310822
- Availability:
- Ships Same Business Day
- Weight:
- 10.05 LBS
- COLOR/FINISH:
- POWDER-COATED
- DISPLACEMENT:
- 103'
- MATERIAL:
- IRON
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- MATERIAL:
- ALUMINUM
- BORE SIZE IMPERIAL:
- 3.875'
- MATERIAL:
- CAST
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- HIGHLIGHTED FINS
- PRODUCT NAME:
- CYLINDER
$204.95 -
DRAG SPECIALTIES Cylinder Set 88186
DRAG SPECIALTIES
$468.95DRAG SPECIALTIES Cylinder Set 88186OEM black texture powder-coat with highlighted fins, Excellent for stock replacement9310823- SKU:
- 9310823
- Availability:
- Ships Same Business Day
- Weight:
- 25.10 LBS
- COLOR/FINISH:
- POWDER-COATED
- COLOR/FINISH:
- BLACK
- DISPLACEMENT:
- 124'
- DISPLACEMENT:
- 128'
- MATERIAL:
- ALUMINUM
- MATERIAL:
- CAST IRON
- TYPE:
- REPLACEMENT
- BORE SIZE IMPERIAL:
- 4.250'
- COLOR/FINISH:
- HIGHLIGHTED FINS
- PRODUCT NAME:
- CYLINDER
- UNITS:
- PAIR
- RIDING STYLE:
- STREET
$468.95 -
DRAG SPECIALTIES Gerotor Scavenge - TC88/96 88721
DRAG SPECIALTIES
$58.95DRAG SPECIALTIES Gerotor Scavenge TC88/96 88721Different parts in product - Can either list as "OEM replacement parts for DS Oil Pump" or split product apart and list more specifically the part9320219- SKU:
- 9320219
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- PRODUCT NAME:
- GEROTOR SCAVENGE
- TYPE:
- OIL PUMP
- UNITS:
- EACH
- RIDING STYLE:
- STREET
$58.95 -
DRAG SPECIALTIES Gerotor Feed - TC88/96 88722
DRAG SPECIALTIES
$19.95DRAG SPECIALTIES Gerotor Feed TC88/96 88722Different parts in product - Can either list as "OEM replacement parts for DS Oil Pump" or split product apart and list more specifically the part9320220- SKU:
- 9320220
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- PRODUCT NAME:
- GEROTOR FEED
- TYPE:
- OIL PUMP
- UNITS:
- EACH
- RIDING STYLE:
- STREET
$19.95Qty in Cart: 0Quantity:Price:$19.95Subtotal:
