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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On Sale
VERTEX Piston Kit VTK23133B
VERTEX
MSRP: $199.95Now: $179.96Was: $199.95VERTEX Piston Kit VTK23133BAll pistons are heat-treated with a T-5 hardening and tempering cycle, All piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston life09103024- SKU:
- 09103024
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
- CYLINDER DIAMETER METRIC:
- 66.40 MM
- DISPLACEMENT:
- 250 CC
- PRODUCT NAME:
- TOP END PISTON KIT
- PISTON DIAMETER METRIC:
- 66.35 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- CAST
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- ENGINE TYPE:
- 2-STROKE
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- CAST REPLICA
MSRP: $199.95Now: $179.96Was: $199.95 -
On Sale
VERTEX Piston Kit VTK22863B
VERTEX
MSRP: $123.95Now: $113.36Was: $126.95VERTEX Piston Kit VTK22863BAll pistons are heat-treated with a T-5 hardening and tempering cycle, All piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston life09103028- SKU:
- 09103028
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- PISTON MATERIAL:
- CAST
- UNITS:
- KIT
- CYLINDER DIAMETER METRIC:
- 47.50 MM
- ENGINE TYPE:
- 2-STROKE
- PISTON DIAMETER METRIC:
- 47.45 MM
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- DISPLACEMENT:
- 85 CC
- PRODUCT NAME:
- TOP END PISTON KIT
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- CAST REPLICA
- PISTON MATERIAL:
- ALUMINUM ALLOY
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
MSRP: $123.95Now: $113.36Was: $126.95 -
On Sale
VERTEX Piston Circlips 72098K
VERTEX
MSRP: $2.95Now: $2.66Was: $2.95VERTEX Piston Circlips 72098KOEM Replacements for Vertex piston kits.09130112- SKU:
- 09130112
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
- APPLICATION:
- PISTON
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- CIRCLIP
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- PAIR
MSRP: $2.95Now: $2.66Was: $2.95 -
On Sale
VERTEX Piston Ring 590277000005
VERTEX
MSRP: $68.95Now: $62.96Was: $69.95VERTEX Piston Ring 590277000005Replacement ring set for Vertex piston kit09120634- SKU:
- 09120634
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- PISTON KIT
- STYLE:
- FORGED REPLICA
- UNITS:
- KIT
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
MSRP: $68.95Now: $62.96Was: $69.95 -
On Sale
VERTEX Piston Ring - Lower 55910005800
VERTEX
MSRP: $36.95Now: $34.16Was: $37.95VERTEX Piston Ring Lower 55910005800Replacement ring set for Vertex piston kit09120636- SKU:
- 09120636
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
- PRODUCT NAME:
- PISTON RING
- UNITS:
- SET
- RIDING STYLE:
- OFF-ROAD
MSRP: $36.95Now: $34.16Was: $37.95 -
On Sale
VERTEX Wrist Pin - CR/YZ/SX/KX/RM 711127
VERTEX
MSRP: $8.05Now: $7.43Was: $8.95VERTEX Wrist Pin CR/YZ/SX/KX/RM 711127Case hardened wrist pins utilize nitride coatings that produce a high performance, wear resistant wrist pin., Coating wrist pins with a nitride coating is advantageous because it allows the desired surface hardness...09130019- SKU:
- 09130019
- Availability:
- Ships Same Business Day
- Weight:
- 0.09 LBS
- APPLICATION:
- PISTON
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- WRIST PIN
- RIDING STYLE:
- STREET
- UNITS:
- EACH
MSRP: $8.05Now: $7.43Was: $8.95 -
On Sale
VERTEX Wrist Pin - CR/KX/YZ85 715378
VERTEX
MSRP: $6.05Now: $5.63Was: $6.95VERTEX Wrist Pin CR/KX/YZ85 715378Case hardened wrist pins utilize nitride coatings that produce a high performance, wear resistant wrist pin., Coating wrist pins with a nitride coating is advantageous because it allows the desired surface hardness to be...09130027- SKU:
- 09130027
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- UNITS:
- EACH
- APPLICATION:
- PISTON
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- WRIST PIN
MSRP: $6.05Now: $5.63Was: $6.95 -
On Sale
VERTEX Ring Set 590276000001
VERTEX
MSRP: $66.95Now: $61.16Was: $67.95VERTEX Ring Set 590276000001Replacement piston rings, Nitride coated or chrome plated, increasing wear resistance and extending durability, The latest generation for both two-stroke and four-stroke engines; four-stroke piston rings are sold in sets and...09120209- SKU:
- 09120209
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- UNITS:
- SET
- RIDING STYLE:
- OFF-ROAD
- PISTON SIZE METRIC:
- STANDARD
- PRODUCT NAME:
- PISTON RING
- PISTON DIAMETER METRIC:
- 75.96 MM
MSRP: $66.95Now: $61.16Was: $67.95Qty in Cart: 0Quantity:Price:MSRP: $66.95Now: $61.16Was: $67.95Subtotal: -
On Sale
VERTEX Ring Set 590278000002
VERTEX
MSRP: $69.95Now: $63.86Was: $70.95VERTEX Ring Set 590278000002Replacement piston rings, Nitride coated or chrome plated, increasing wear resistance and extending durability, The latest generation for both two-stroke and four-stroke engines; four-stroke piston rings are sold in sets and...09120213- SKU:
- 09120213
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- UNITS:
- SET
- PISTON DIAMETER METRIC:
- 77.96 MM
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- PISTON RING
MSRP: $69.95Now: $63.86Was: $70.95 -
On Sale
VERTEX Ring Set 590280000002
VERTEX
MSRP: $82.95Now: $76.46Was: $85.95VERTEX Ring Set 590280000002Replacement piston rings, Nitride coated or chrome plated, increasing wear resistance and extending durability, The latest generation for both two-stroke and four-stroke engines; four-stroke piston rings are sold in sets and...09120214- SKU:
- 09120214
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- UNITS:
- SET
- PRODUCT NAME:
- PISTON RING
- PISTON DIAMETER METRIC:
- 79.96 MM
- RIDING STYLE:
- OFF-ROAD
MSRP: $82.95Now: $76.46Was: $85.95 -
On Sale
VERTEX Ring Set 590295000002
VERTEX
MSRP: $50.95Now: $46.76Was: $51.95VERTEX Ring Set 590295000002Replacement piston rings, Nitride coated or chrome plated, increasing wear resistance and extending durability, The latest generation for both two-stroke and four-stroke engines; four-stroke piston rings are sold in sets and...09120217- SKU:
- 09120217
- Availability:
- Ships Same Business Day
- Weight:
- 0.07 LBS
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- PISTON RING
- UNITS:
- SET
- PISTON DIAMETER METRIC:
- 94.95 MM
- RIDING STYLE:
- STREET
MSRP: $50.95Now: $46.76Was: $51.95Qty in Cart: 0Quantity:Price:MSRP: $50.95Now: $46.76Was: $51.95Subtotal: -
On Sale
VERTEX Ring Set 590295500001
VERTEX
MSRP: $67.95Now: $62.06Was: $68.95VERTEX Ring Set 590295500001Replacement piston rings, Nitride coated or chrome plated, increasing wear resistance and extending durability, The latest generation for both two-stroke and four-stroke engines; four-stroke piston rings are sold in sets and...09120218- SKU:
- 09120218
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- PRODUCT NAME:
- PISTON RING
- RIDING STYLE:
- ATV
- UNITS:
- SET
- PISTON DIAMETER METRIC:
- 95.45 MM
MSRP: $67.95Now: $62.06Was: $68.95 -
On Sale
VERTEX Ring Set 590296000001
VERTEX
MSRP: $69.95Now: $63.86Was: $70.95VERTEX Ring Set 590296000001Replacement piston rings, Nitride coated or chrome plated, increasing wear resistance and extending durability, The latest generation for both two-stroke and four-stroke engines; four-stroke piston rings are sold in sets and...09120219- SKU:
- 09120219
- Availability:
- Ships Same Business Day
- Weight:
- 0.07 LBS
- PISTON DIAMETER METRIC:
- 95.96 MM
- UNITS:
- SET
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- PISTON RING
MSRP: $69.95Now: $63.86Was: $70.95 -
On Sale
VERTEX Ring Set 590377000001
VERTEX
MSRP: $51.95Now: $47.66Was: $52.95VERTEX Ring Set 590377000001Replacement piston rings, Nitride coated or chrome plated, increasing wear resistance and extending durability, The latest generation for both two-stroke and four-stroke engines; four-stroke piston rings are sold in sets and...09120226- SKU:
- 09120226
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PISTON DIAMETER METRIC:
- 76.94 MM
- PRODUCT NAME:
- PISTON RING
- UNITS:
- SET
- RIDING STYLE:
- OFF-ROAD
- ENGINE TYPE:
- 4-STROKE
MSRP: $51.95Now: $47.66Was: $52.95 -
On Sale
VERTEX Piston Kit 23666A
VERTEX
MSRP: $112.95Now: $103.46Was: $115.95VERTEX Piston Kit 23666AAll pistons are heat treated with a T-5 hardening and tempering cycle, All piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston life, Cast piston kits are gravity...09105949- SKU:
- 09105949
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- PISTON MATERIAL:
- ALUMINUM ALLOY
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- CYLINDER DIAMETER METRIC:
- 48 MM
- DISPLACEMENT:
- 85 CC
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- CAST REPLICA
- UNITS:
- KIT
- ENGINE TYPE:
- 2-STROKE
- PISTON DIAMETER METRIC:
- 47.87 MM
- PRODUCT NAME:
- PISTON KIT
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- PISTON MATERIAL:
- CAST
MSRP: $112.95Now: $103.46Was: $115.95 -
On Sale
VERTEX Piston Kit 23666B
VERTEX
MSRP: $112.95Now: $103.46Was: $114.95VERTEX Piston Kit 23666BAll pistons are heat treated with a T-5 hardening and tempering cycle, All piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston life, Cast piston kits are gravity...09105950- SKU:
- 09105950
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- PISTON DIAMETER METRIC:
- 47.88 MM
- PRODUCT NAME:
- PISTON KIT
- CYLINDER DIAMETER METRIC:
- 48 MM
- PISTON MATERIAL:
- ALUMINUM ALLOY
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- DISPLACEMENT:
- 85 CC
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- CAST
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- CAST REPLICA
- UNITS:
- KIT
MSRP: $112.95Now: $103.46Was: $114.95 -
On Sale
VERTEX Piston Kit 23654B
VERTEX
MSRP: $236.95Now: $217.76Was: $243.95VERTEX Piston Kit 23654BAll pistons are heat treated with a T-5 hardening and tempering cycle, All piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston life, Cast piston kits are gravity...09102060- SKU:
- 09102060
- Availability:
- Ships Same Business Day
- Weight:
- 0.64 LBS
- BORE - OVERSIZE:
- +3,00 MM
- COMPRESSION RATIO IMPERIAL:
- 13.5:1
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- CYLINDER DIAMETER METRIC:
- 80.00 MM
- DISPLACEMENT:
- 270 CC
- STYLE:
- FORGED BIG BORE
- BORE - OVERSIZE METRIC:
- +3.00 MM
- PISTON DIAMETER METRIC:
- 79.96 MM
- PRODUCT NAME:
- PISTON KIT
- UNITS:
- KIT
MSRP: $236.95Now: $217.76Was: $243.95 -
On Sale
VERTEX Piston Kit 23654C
VERTEX
MSRP: $212.95Now: $191.66Was: $212.95VERTEX Piston Kit 23654CAll pistons are heat-treated with a T-5 hardening and tempering cycle, All piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston life09102061- SKU:
- 09102061
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- BORE - OVERSIZE:
- +3,00 MM
- COMPRESSION RATIO IMPERIAL:
- 13.5:1
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- OFF-ROAD
- PISTON DIAMETER METRIC:
- 79.97 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- STYLE:
- FORGED BIG BORE
- CYLINDER DIAMETER METRIC:
- 80.00 MM
- DISPLACEMENT:
- 270 CC
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- UNITS:
- KIT
- BORE - OVERSIZE METRIC:
- +3.00 MM
- PRODUCT NAME:
- PISTON KIT
MSRP: $212.95Now: $191.66Was: $212.95Qty in Cart: 0Quantity:Price:MSRP: $212.95Now: $191.66Was: $212.95Subtotal: -
On Sale
VERTEX Piston Kit - Standard 22652B
VERTEX
MSRP: $150.95Now: $138.56Was: $154.95VERTEX Piston Kit Standard 22652BAll pistons are heat-treated with a T-5 hardening and tempering cycle, All piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston life09100945- SKU:
- 09100945
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- ENGINE TYPE:
- 2-STROKE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- CAST
- PRODUCT NAME:
- PISTON KIT
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- STYLE:
- CAST REPLICA
- CYLINDER DIAMETER METRIC:
- 54.00 MM
- DISPLACEMENT:
- 125 CC
- PISTON DIAMETER METRIC:
- 53.96 MM
MSRP: $150.95Now: $138.56Was: $154.95 -
On Sale
VERTEX Piston Kit 22998B
VERTEX
MSRP: $150.95Now: $138.56Was: $154.95VERTEX Piston Kit 22998BAll pistons are heat-treated with a T-5 hardening and tempering cycle, All piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston life09100946- SKU:
- 09100946
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- CAST
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- STANDARD
- CYLINDER DIAMETER METRIC:
- 54.00 MM
- PISTON DIAMETER METRIC:
- 53.96 MM
- STYLE:
- CAST REPLICA
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON KIT
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
- DISPLACEMENT:
- 125 CC
MSRP: $150.95Now: $138.56Was: $154.95
