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!
-
Dirt Bike Cams and Parts
-
Dirt Bike Connecting Rods and Parts
-
Dirt Bike Crankcases and Parts
-
Dirt Bike Crankshafts and Parts
-
Dirt Bike Cylinder Heads and Parts
-
Dirt Bike Cylinders and Parts
-
Dirt Bike Engine Bearings
-
Dirt Bike Engine Covers
-
Dirt Bike Engine Gaskets and Kits
-
Dirt Bike Engine Rebuild Kits
-
Dirt Bike Engine Seals - Orings and Kits
-
Dirt Bike Engine Valves and Parts
-
Dirt Bike Flywheel and Rod Assemblies
-
Dirt Bike Fuel Filters
-
Dirt Bike Miscellaneous Engine Parts
-
Dirt Bike Oil Coolers
-
Dirt Bike Oil Filters
-
Dirt Bike Oil Lines
-
Dirt Bike Oil Pumps
-
Dirt Bike Piston and Ring Kits
-
Dirt Bike Piston Rings Only
-
Dirt Bike Wrist Pins and Circlips
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
WISECO Piston - Standard - Yamaha YZ 125 559M05600
WISECO
$164.95WISECO Piston Standard Yamaha YZ 125 559M05600Forged from high-silicon aluminum alloy for maximum strength and dependability, Wiseco offers a complete range of popular piston models and years for both trail and racing applications, Durability, longevity...559M05600- SKU:
- 559M05600
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
$164.95Qty in Cart: 0Quantity:Price:$164.95Subtotal: -
WISECO Piston - +2.10 mm - Kawasaki KX 250/KXF 250 Tecate 4 556M06950
WISECO
$222.61WISECO Piston +2.10 mm Kawasaki KX 250/KXF 250 Tecate 4 556M06950Forged from high-silicon aluminum alloy for maximum strength and dependability, Wiseco offers a complete range of popular piston models and years for both trail and racing applications,...556M06950- SKU:
- 556M06950
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
$222.61Qty in Cart: 0Quantity:Price:$222.61Subtotal: -
WISECO Piston - +1.00 mm - Kawasaki KX 250/KXF 250 Tecate 4 556M06850
WISECO
$199.95WISECO Piston +1.00 mm Kawasaki KX 250/KXF 250 Tecate 4 556M06850Forged from high-silicon aluminum alloy for maximum strength and dependability, Wiseco offers a complete range of popular piston models and years for both trail and racing applications,...556M06850- SKU:
- 556M06850
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- BORE - OVERSIZE:
- +1,10 MM
- BORE SIZE METRIC:
- 68.50 MM
- RIDING STYLE:
- OFF-ROAD
- BORE - OVERSIZE METRIC:
- +1.10 MM
- DISPLACEMENT:
- 249 CC
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- STROKE LENGTH:
- 70,00 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- STROKE LENGTH METRIC:
- 70.00 MM
$199.95 -
WISECO Piston - Standard - Kawasaki KX 250/KXF 250 Tecate 4 556M06740
WISECO
$199.95WISECO Piston Standard Kawasaki KX 250/KXF 250 Tecate 4 556M06740Forged from high-silicon aluminum alloy for maximum strength and dependability, Wiseco offers a complete range of popular piston models and years for both trail and racing applications,...556M06740- SKU:
- 556M06740
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- DISPLACEMENT:
- 249 CC
- STROKE LENGTH:
- 70,00 MM
- STROKE LENGTH METRIC:
- 70.00 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- OFF-ROAD
- BORE SIZE METRIC:
- 67.40 MM
$199.95 -
WISECO Piston - Standard - Kawasaki KX 125 555M05600
WISECO
$154.95WISECO Piston Standard Kawasaki KX 125 555M05600Forged from high-silicon aluminum alloy for maximum strength and dependability, Wiseco offers a complete range of popular piston models and years for both trail and racing applications, Durability,...555M05600- SKU:
- 555M05600
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- BORE SIZE METRIC:
- 56.00 MM
- DISPLACEMENT:
- 124 CC
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- OFF-ROAD
- PISTON MATERIAL:
- ALUMINUM ALLOY
- STROKE LENGTH:
- 50,6 MM
- STROKE LENGTH METRIC:
- 50.60 MM
- UNITS:
- EACH
$154.95Qty in Cart: 0Quantity:Price:$154.95Subtotal: -
On Sale
WISECO Piston - +2.00 mm - Honda CR125R 553M05600
WISECO
MSRP: $172.83Now: $117.96Was: $181.47WISECO Piston +2.00 mm Honda CR125R 553M05600Forged from high-silicon aluminum alloy for maximum strength and dependability, Wiseco offers a complete range of popular piston models and years for both trail and racing applications, Durability, longevity...553M05600- SKU:
- 553M05600
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- PISTON MATERIAL:
- FORGED
- RIDING STYLE:
- OFF-ROAD
- BORE - OVERSIZE METRIC:
- +2.00 MM
- PISTON MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- PISTON KIT
- STROKE LENGTH METRIC:
- 54.00 MM
- ENGINE TYPE:
- 2-STROKE
- BORE - OVERSIZE:
- +2,00 MM
- BORE SIZE METRIC:
- 56.00 MM
- DISPLACEMENT:
- 124 CC
- STROKE LENGTH:
- 54,00 MM
- UNITS:
- EACH
MSRP: $172.83Now: $117.96Was: $181.47Qty in Cart: 0Quantity:Price:MSRP: $172.83Now: $117.96Was: $181.47Subtotal: -
WISECO Piston - +1.00 mm - Honda CR125R 553M05500
WISECO
$157.28WISECO Piston +1.00 mm Honda CR125R 553M05500Forged from high-silicon aluminum alloy for maximum strength and dependability, Wiseco offers a complete range of popular piston models and years for both trail and racing applications, Durability, longevity...553M05500- SKU:
- 553M05500
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- DISPLACEMENT:
- 124 CC
- STROKE LENGTH:
- 54,00 MM
- STROKE LENGTH METRIC:
- 54.00 MM
- BORE - OVERSIZE:
- +1,00 MM
- BORE SIZE METRIC:
- 55.00 MM
- PISTON MATERIAL:
- FORGED
- BORE - OVERSIZE METRIC:
- +1.00 MM
- PISTON MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- PISTON KIT
- ENGINE TYPE:
- 2-STROKE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$157.28Qty in Cart: 0Quantity:Price:$157.28Subtotal: -
WISECO Piston - Standard - Honda CR125R 553M05400
WISECO
$149.79WISECO Piston Standard Honda CR125R 553M05400Forged from high-silicon aluminum alloy for maximum strength and dependability, Wiseco offers a complete range of popular piston models and years for both trail and racing applications, Durability, longevity...553M05400- SKU:
- 553M05400
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- BORE SIZE METRIC:
- 54.00 MM
- ENGINE TYPE:
- 2-STROKE
- PRODUCT NAME:
- PISTON KIT
- STROKE LENGTH:
- 54,00 MM
- STROKE LENGTH METRIC:
- 54.00 MM
- BORE - OVERSIZE METRIC:
- STANDARD
- DISPLACEMENT:
- 124 CC
- PISTON MATERIAL:
- ALUMINUM
- PISTON MATERIAL:
- FORGED
- RIDING STYLE:
- OFF-ROAD
- BORE - OVERSIZE:
- STANDARD
- UNITS:
- EACH
$149.79 -
WISECO Piston - Standard - Yamaha WR 500 Z/YZ 490 546M08700
WISECO
$234.95WISECO Piston Standard Yamaha WR 500 Z/YZ 490 546M08700Forged from high-silicon aluminum alloy for maximum strength and dependability, Wiseco offers a complete range of popular piston models and years for both trail and racing applications, Durability,...546M08700- SKU:
- 546M08700
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
- BORE SIZE METRIC:
- 87.00 MM
- PISTON MATERIAL:
- FORGED
- RIDING STYLE:
- OFF-ROAD
- PISTON MATERIAL:
- ALUMINUM ALLOY
- STROKE LENGTH METRIC:
- 82.00 MM
- UNITS:
- EACH
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- DISPLACEMENT:
- 487 CC
- PRODUCT NAME:
- PISTON
- STROKE LENGTH:
- 82,00 MM
$234.95Qty in Cart: 0Quantity:Price:$234.95Subtotal: -
WISECO Piston 4606M08600
WISECO
$194.95WISECO Piston 4606M08600Forged from high-silicon alloy for maximum strength and dependability, Wiseco offers a complete range of popular piston models and years for both trail and racing applications, All Wiseco pistons are priced with rings and circlips4606M08600- SKU:
- 4606M08600
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- PRODUCT NAME:
- PISTON KIT
- STROKE LENGTH METRIC:
- 70.00 MM
- MODEL:
- FORGED SERIES
- SKIRT COATING:
- NON-COATED
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- ATV
- BORE - OVERSIZE:
- +1,00 MM
- BORE - OVERSIZE METRIC:
- +1.00 MM
- BORE SIZE METRIC:
- 86.00 MM
- COMPRESSION RATIO IMPERIAL:
- 10.0:1
- DISPLACEMENT:
- 397 CC
- PISTON DIAMETER METRIC:
- 85.95 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$194.95 -
WISECO Piston 4606M08500
WISECO
$194.95WISECO Piston 4606M08500Forged from high-silicon alloy for maximum strength and dependability, Wiseco offers a complete range of popular piston models and years for both trail and racing applications, All Wiseco pistons are priced with rings and circlips4606M08500- SKU:
- 4606M08500
- Availability:
- Ships Same Business Day
- Weight:
- 0.94 LBS
- BORE - OVERSIZE METRIC:
- STANDARD
- COMPRESSION RATIO IMPERIAL:
- 10.0:1
- DISPLACEMENT:
- 397 CC
- RIDING STYLE:
- OFF-ROAD
- SKIRT COATING:
- NON-COATED
- UNITS:
- KIT
- MODEL:
- FORGED SERIES
- PISTON DIAMETER METRIC:
- 84.95 MM
- BORE - OVERSIZE:
- STANDARD
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- ATV
- BORE SIZE METRIC:
- 85.00 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- PRODUCT NAME:
- PISTON KIT
- STROKE LENGTH METRIC:
- 70.00 MM
$194.95 -
WISECO Piston - Kawasaki - 1mm 439M07100
WISECO
$203.95WISECO Piston Kawasaki 1mm 439M07100Forged from high-silicon alloy for maximum strength and dependability, Wiseco offers a complete range of popular piston models and years for both trail and racing applications, All Wiseco pistons are priced with rings...439M07100- SKU:
- 439M07100
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
$203.95Qty in Cart: 0Quantity:Price:$203.95Subtotal: -
WISECO Piston - Kawasaki - Standard 439M07000
WISECO
$199.95WISECO Piston Kawasaki Standard 439M07000Forged from high-silicon alloy for maximum strength and dependability, Wiseco offers a complete range of popular piston models and years for both trail and racing applications, All Wiseco pistons are priced with...439M07000- SKU:
- 439M07000
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- BORE SIZE METRIC:
- 70.00 MM
- PRODUCT NAME:
- PISTON KIT
- SKIRT COATING:
- NON-COATED
- UNITS:
- KIT
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- MODEL:
- FORGED SERIES
- PISTON DIAMETER METRIC:
- 69.95 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- STROKE LENGTH METRIC:
- 64.90 MM
- DISPLACEMENT:
- 249 CC
- ENGINE TYPE:
- 2-STROKE
$199.95 -
WISECO Piston - Honda - .50mm 4366M09750
WISECO
$239.95WISECO Piston Honda .50mm 4366M09750Forged from high-silicon alloy for maximum strength and dependability, Wiseco offers a complete range of popular piston models and years for both trail and racing applications, All Wiseco pistons are priced with rings...4366M09750- SKU:
- 4366M09750
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
- PRODUCT NAME:
- PISTON KIT
- DISPLACEMENT:
- 591 CC
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- BORE - OVERSIZE METRIC:
- +0.50 MM
- BORE SIZE METRIC:
- 97.50 MM
- MODEL:
- FORGED SERIES
- SKIRT COATING:
- NON-COATED
- UNITS:
- KIT
- BORE - OVERSIZE:
- +0,50 MM
- COMPRESSION RATIO IMPERIAL:
- 11.0:1
- PISTON DIAMETER METRIC:
- 97.42 MM
- RIDING STYLE:
- OFF-ROAD
- STROKE LENGTH METRIC:
- 80.00 MM
$239.95Qty in Cart: 0Quantity:Price:$239.95Subtotal: -
WISECO Piston - 1.0mm 435M05700
WISECO
$154.95WISECO Piston 1.0mm 435M05700Forged from high-silicon alloy for maximum strength and dependability, Wiseco offers a complete range of popular piston models and years for both trail and racing applications, All Wiseco pistons are priced with rings and...435M05700- SKU:
- 435M05700
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- BORE - OVERSIZE METRIC:
- +1.00 MM
- DISPLACEMENT:
- 123 CC
- MODEL:
- FORGED SERIES
- PRODUCT NAME:
- PISTON KIT
- SKIRT COATING:
- NON-COATED
- BORE - OVERSIZE:
- +1,00 MM
- ENGINE TYPE:
- 2-STROKE
- PISTON DIAMETER METRIC:
- 56.95 MM
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- BORE SIZE METRIC:
- 57.00 MM
- STROKE LENGTH METRIC:
- 50.00 MM
$154.95 -
WISECO Piston - 1mm 4329M07600
WISECO
$194.95WISECO Piston 1mm 4329M07600Forged from high-silicon alloy for maximum strength and dependability, Wiseco offers a complete range of popular piston models and years for both trail and racing applications, All Wiseco pistons are priced with rings and...4329M07600- SKU:
- 4329M07600
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- BORE - OVERSIZE METRIC:
- +1.00 MM
- RIDING STYLE:
- OFF-ROAD
- SKIRT COATING:
- NON-COATED
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- 10.5:1
- ENGINE TYPE:
- 4-STROKE
- BORE - OVERSIZE:
- +1,00 MM
- BORE SIZE METRIC:
- 76.00 MM
- DISPLACEMENT:
- 250 CC
- MODEL:
- FORGED SERIES
- PRODUCT NAME:
- PISTON KIT
- PISTON DIAMETER METRIC:
- 75.95 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- STROKE LENGTH METRIC:
- 56.50 MM
$194.95 -
On Sale
HOT RODS Connecting Rod 8126
HOT RODS
MSRP: $112.95Now: $103.46Was: $114.95HOT RODS Connecting Rod 8126Heavy-duty OE replacement connecting rods, Certified 8620 AISI steel provides superior strength, Crankpins are manufactured from hot-rolled ASTM 4115 and case hardened to 58-62Rc, Feature the latest in caged needle roller...427308- SKU:
- 427308
- Availability:
- Ships Same Business Day
- Weight:
- 0.56 LBS
- FEATURES:
- INCLUDES THRUST WASHERS
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- CONNECTING ROD KIT
- UNITS:
- KIT
- ENGINE TYPE:
- 2-CYCLE
- MATERIAL:
- 8620 STEEL
MSRP: $112.95Now: $103.46Was: $114.95 -
On Sale
HOT RODS Connecting Rod 8107
HOT RODS
MSRP: $161.95Now: $148.46Was: $164.95HOT RODS Connecting Rod 8107Heavy-duty OE replacement connecting rods, Certified 8620 AISI steel provides superior strength, Crankpins are manufactured from hot-rolled ASTM 4115 and case hardened to 58-62Rc, Feature the latest in caged needle roller...427303- SKU:
- 427303
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
- MATERIAL:
- 8620 STEEL
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- ENGINE TYPE:
- 2-CYCLE
- FEATURES:
- INCLUDES THRUST WASHERS
MSRP: $161.95Now: $148.46Was: $164.95 -
On Sale
HOT RODS Connecting Rod 8106
HOT RODS
MSRP: $123.95Now: $113.36Was: $125.95HOT RODS Connecting Rod 8106Heavy-duty OE replacement connecting rods, Certified 8620 AISI steel provides superior strength, Crankpins are manufactured from hot-rolled ASTM 4115 and case hardened to 58-62Rc, Feature the latest in caged needle roller...427302- SKU:
- 427302
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- ENGINE TYPE:
- 2-CYCLE
- MATERIAL:
- 8620 STEEL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- FEATURES:
- INCLUDES THRUST WASHERS
- PRODUCT NAME:
- CONNECTING ROD KIT
MSRP: $123.95Now: $113.36Was: $125.95 -
On Sale
HOT RODS Connecting Rod 8127
HOT RODS
MSRP: $112.95Now: $103.46Was: $114.95HOT RODS Connecting Rod 8127Heavy-duty OE replacement connecting rods, Certified 8620 AISI steel provides superior strength, Crankpins are manufactured from hot-rolled ASTM 4115 and case hardened to 58-62Rc, Feature the latest in caged needle roller...425505- SKU:
- 425505
- Availability:
- Ships Same Business Day
- Weight:
- 0.56 LBS
- ENGINE TYPE:
- 2-CYCLE
- UNITS:
- KIT
- MATERIAL:
- 8620 STEEL
- FEATURES:
- INCLUDES THRUST WASHERS
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- CONNECTING ROD KIT
MSRP: $112.95Now: $103.46Was: $114.95
