Dirt Bike Engine
Discover a full range of dirt bike engine components for rebuilding or upgrading your performance. From crankshafts to cylinder heads and piston kits, these precision-engineered components ensure reliable performance. For additional upgrades, check out our full selection of off-road dirt bike parts.
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- Price
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ATHENA Piston Kit S4F06600002B
ATHENA
MSRP: $150.95$115.95ATHENA Piston Kit S4F06600002BTwo-stroke pistons are made from 4032 silicium, Four-stroke pistons are made from 2618 silicium - the same material used to produce Formula 1 pistons, Both include 3% copper in materials for better heat resistance, All...09100451- SKU:
- 09100451
- Availability:
- Ships Same Business Day
- Weight:
- 0.62 LBS
- BORE SIZE METRIC:
- 65.95 MM
- COMPRESSION RATIO IMPERIAL:
- STOCK
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- PISTON KIT
- DISPLACEMENT:
- 198 CC
- PISTON HEAD SHAPE:
- FLAT TOP
- TYPE:
- B
MSRP: $150.95$115.95 -
ATHENA Piston Kit - Yamaha/Malaguti S4C04760006A
ATHENA
$61.95ATHENA Piston Kit Yamaha/Malaguti S4C04760006APiston kits include piston, rings, wrist pin, and circlips09100581- SKU:
- 09100581
- Availability:
- Ships Same Business Day
- Weight:
- 0.24 LBS
- BORE - OVERSIZE:
- STANDARD
- BORE - OVERSIZE METRIC:
- STANDARD
- RIDING STYLE:
- STREET
- BORE SIZE METRIC:
- 47.66 MM
- PISTON MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- PISTON KIT
- UNITS:
- KIT
$61.95Qty in Cart: 0Quantity:Price:$61.95Subtotal: -
ATHENA Piston Kit S4F06640018A
ATHENA
$197.95ATHENA Piston Kit S4F06640018ATwo-stroke pistons are made from 4032 silicium, Four-stroke pistons are made from 2618 silicium - the same material used to produce Formula 1 pistons, Both include 3% copper in materials for better heat resistance, All...09100627- SKU:
- 09100627
- Availability:
- Ships Same Business Day
- Weight:
- 0.67 LBS
- BORE SIZE METRIC:
- 66.34 MM
- COMPRESSION RATIO IMPERIAL:
- STOCK
- DISPLACEMENT:
- 250 CC
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- STREET
- TYPE:
- A
- ENGINE TYPE:
- 2-STROKE
- PISTON HEAD SHAPE:
- DOMED
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$197.95 -
ATHENA Piston Kit S4F06640019A
ATHENA
$182.95ATHENA Piston Kit S4F06640019ATwo-stroke pistons are made from 4032 silicium, Four-stroke pistons are made from 2618 silicium - the same material used to produce Formula 1 pistons, Both include 3% copper in materials for better heat resistance, All...09100641- SKU:
- 09100641
- Availability:
- Ships Same Business Day
- Weight:
- 0.69 LBS
- BORE SIZE METRIC:
- 66.34 MM
- COMPRESSION RATIO IMPERIAL:
- STOCK
- PRODUCT NAME:
- PISTON KIT
- UNITS:
- KIT
- PISTON HEAD SHAPE:
- DOMED
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- ENGINE TYPE:
- 2-STROKE
- DISPLACEMENT:
- 249 CC
- TYPE:
- A
$182.95Qty in Cart: 0Quantity:Price:$182.95Subtotal: -
ATHENA Piston Kit S5F08200001A
ATHENA
$233.95ATHENA Piston Kit S5F08200001AIncludes rings, clips and pin, Easy-to-follow step-by-step installation instructions09100646- SKU:
- 09100646
- Availability:
- Ships Same Business Day
- Weight:
- 0.56 LBS
- PISTON DIAMETER METRIC:
- 81.95 MM
- STYLE:
- BIG BORE
- PISTON SIZE METRIC:
- STANDARD SIZE A
- PRODUCT NAME:
- PISTON
- COMPRESSION RATIO IMPERIAL:
- 13.1:1
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$233.95Qty in Cart: 0Quantity:Price:$233.95Subtotal: -
ATHENA Piston Kit S4C05800001A
ATHENA
$242.95ATHENA Piston Kit S4C05800001AIncludes rings, clips and pin, Easy-to-follow step-by-step installation instructions09100648- SKU:
- 09100648
- Availability:
- Ships Same Business Day
- Weight:
- 0.42 LBS
- STYLE:
- BIG BORE
- ENGINE TYPE:
- 2-STROKE
- PISTON DIAMETER METRIC:
- 57.94 MM
- PISTON SIZE METRIC:
- STANDARD SIZE A
- COMPRESSION RATIO IMPERIAL:
- 14.0:1
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$242.95 -
ATHENA Piston Kit S4C04850001B
ATHENA
$93.95ATHENA Piston Kit S4C04850001BTwo-stroke pistons are made from 4032 silicium, Four-stroke pistons are made from 2618 silicium - the same material used to produce Formula 1 pistons, Both include 3% copper in materials for better heat resistance, All...09101418- SKU:
- 09101418
- Availability:
- Ships Same Business Day
- Weight:
- 0.32 LBS
- DISPLACEMENT:
- 85 CC
- ENGINE TYPE:
- 2-STROKE
- PISTON HEAD SHAPE:
- DOMED
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- BORE SIZE METRIC:
- 48.46 MM
- COMPRESSION RATIO IMPERIAL:
- STOCK
- PRODUCT NAME:
- PISTON KIT
- TYPE:
- B
$93.95 -
ATHENA Piston S4C05400016A
ATHENA
$195.95ATHENA Piston S4C05400016AIncludes rings, clips and pin, Easy-to-follow step-by-step installation instructions09100669- SKU:
- 09100669
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- PRODUCT NAME:
- PISTON
- UNITS:
- EACH
- COMPRESSION RATIO IMPERIAL:
- 14.8:1
- ENGINE TYPE:
- 2-STROKE
- PISTON DIAMETER METRIC:
- 53.94 MM
- PISTON SIZE METRIC:
- STANDARD SIZE A
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- STANDARD BORE
$195.95 -
ATHENA Piston Kit S4C05000002A
ATHENA
$105.95ATHENA Piston Kit S4C05000002AIncludes rings, clips and pin, Easy-to-follow step-by-step installation instructions09101328- SKU:
- 09101328
- Availability:
- Ships Same Business Day
- Weight:
- 0.29 LBS
- PISTON DIAMETER METRIC:
- 49.95 MM
- PRODUCT NAME:
- PISTON
- COMPRESSION RATIO IMPERIAL:
- 15.0:1
- ENGINE TYPE:
- 2-STROKE
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- BIG BORE
- PISTON SIZE METRIC:
- STANDARD SIZE A
$105.95 -
ATHENA Piston Kit S4F090000050
ATHENA
$273.95ATHENA Piston Kit S4F090000050Two-stroke pistons are made from 4032 silicium, Four-stroke pistons are made from 2618 silicium - the same material used to produce Formula 1 pistons, Both include 3% copper in materials for better heat resistance, All...09102764- SKU:
- 09102764
- Availability:
- Ships Same Business Day
- Weight:
- 0.93 LBS
- TYPE:
- REPLACEMENT FORGED PISTON
- PISTON DIAMETER METRIC:
- 89.96 MM
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- BORE SIZE METRIC:
- 89.96 MM
- COMPRESSION RATIO IMPERIAL:
- 13.5:1
- ENGINE TYPE:
- 4-STROKE
- PRODUCT NAME:
- PISTON
- UNITS:
- KIT
- RIDING STYLE:
- OFF-ROAD
$273.95 -
ATHENA Piston Kit S4F07200006A
ATHENA
$259.95ATHENA Piston Kit S4F07200006AIncludes rings, clips and pin, Easy-to-follow step-by-step installation instructions09102666- SKU:
- 09102666
- Availability:
- Ships Same Business Day
- Weight:
- 0.96 LBS
- ENGINE TYPE:
- 2-STROKE
- PRODUCT NAME:
- PISTON
- UNITS:
- EACH
- COMPRESSION RATIO IMPERIAL:
- 16.0:1
- PISTON SIZE METRIC:
- STANDARD SIZE A
- PISTON DIAMETER METRIC:
- 71.95 MM
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- BIG BORE
$259.95Qty in Cart: 0Quantity:Price:$259.95Subtotal: -
ATHENA Piston Kit S4F07200006B
ATHENA
$240.95ATHENA Piston Kit S4F07200006BIncludes rings, clips and pin, Easy-to-follow step-by-step installation instructions09102667- SKU:
- 09102667
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- ENGINE TYPE:
- 2-STROKE
- PISTON SIZE METRIC:
- STANDARD SIZE B
- PRODUCT NAME:
- PISTON
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- BIG BORE
- COMPRESSION RATIO IMPERIAL:
- 16.0:1
- PISTON DIAMETER METRIC:
- 71.96 MM
$240.95 -
ATHENA Piston Kit S4F08200005A
ATHENA
$277.95ATHENA Piston Kit S4F08200005AIncludes rings, clips and pin, Easy-to-follow step-by-step installation instructions09103414- SKU:
- 09103414
- Availability:
- Ships Same Business Day
- Weight:
- 0.74 LBS
- PISTON SIZE METRIC:
- STANDARD SIZE A
- ENGINE TYPE:
- 4-STROKE
- PISTON DIAMETER METRIC:
- 81.95 MM
- PRODUCT NAME:
- PISTON
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- COMPRESSION RATIO IMPERIAL:
- 16.0:1
- RIDING STYLE:
- STREET
- STYLE:
- BIG BORE
$277.95 -
ATHENA Piston Kit S4F05400017A
ATHENA
$137.95ATHENA Piston Kit S4F05400017ATwo-stroke pistons are made from 4032 silicium, Four-stroke pistons are made from 2618 silicium - the same material used to produce Formula 1 pistons, Both include 3% copper in materials for better heat resistance, All...09103891- SKU:
- 09103891
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- DISPLACEMENT:
- 124 CC
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- A
- BORE SIZE METRIC:
- 53.95 MM
- PISTON HEAD SHAPE:
- FLAT TOP
- COMPRESSION RATIO IMPERIAL:
- STOCK
- PRODUCT NAME:
- PISTON KIT
- UNITS:
- KIT
$137.95 -
ATHENA Piston Kit S4F05400017B
ATHENA
$137.95ATHENA Piston Kit S4F05400017BTwo-stroke pistons are made from 4032 silicium, Four-stroke pistons are made from 2618 silicium - the same material used to produce Formula 1 pistons, Both include 3% copper in materials for better heat resistance, All...09103892- SKU:
- 09103892
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- DISPLACEMENT:
- 124 CC
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- PISTON HEAD SHAPE:
- FLAT TOP
- UNITS:
- KIT
- BORE SIZE METRIC:
- 53.96 MM
- COMPRESSION RATIO IMPERIAL:
- STOCK
- PRODUCT NAME:
- PISTON KIT
- TYPE:
- B
$137.95 -
ATHENA Piston Kit S4F05400017C
ATHENA
$137.95ATHENA Piston Kit S4F05400017CTwo-stroke pistons are made from 4032 silicium, Four-stroke pistons are made from 2618 silicium - the same material used to produce Formula 1 pistons, Both include 3% copper in materials for better heat resistance, All...09103893- SKU:
- 09103893
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- BORE SIZE METRIC:
- 53.97 MM
- DISPLACEMENT:
- 124 CC
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- C
- ENGINE TYPE:
- 2-STROKE
- PRODUCT NAME:
- PISTON KIT
- COMPRESSION RATIO IMPERIAL:
- STOCK
- PISTON HEAD SHAPE:
- FLAT TOP
- UNITS:
- KIT
$137.95Qty in Cart: 0Quantity:Price:$137.95Subtotal: -
ATHENA Piston Kit S4F06640018C
ATHENA
$197.95ATHENA Piston Kit S4F06640018CTwo-stroke pistons are made from 4032 silicium, Four-stroke pistons are made from 2618 silicium - the same material used to produce Formula 1 pistons, Both include 3% copper in materials for better heat resistance, All...09103894- SKU:
- 09103894
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- DISPLACEMENT:
- 249 CC
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- BORE SIZE METRIC:
- 66.36 MM
- ENGINE TYPE:
- 2-STROKE
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- STREET
- PISTON HEAD SHAPE:
- DOMED
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- C
- COMPRESSION RATIO IMPERIAL:
- STOCK
- UNITS:
- KIT
$197.95Qty in Cart: 0Quantity:Price:$197.95Subtotal: -
ATHENA Piston Kit S4F07700006A
ATHENA
$244.95ATHENA Piston Kit S4F07700006ATwo-stroke pistons are made from 4032 silicium, Four-stroke pistons are made from 2618 silicium - the same material used to produce Formula 1 pistons, Both include 3% copper in materials for better heat resistance, All...09103897- SKU:
- 09103897
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- COMPRESSION RATIO IMPERIAL:
- 13.4:1
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- A
- ENGINE TYPE:
- 4-STROKE
- PISTON HEAD SHAPE:
- DOMED
- UNITS:
- KIT
- DISPLACEMENT:
- 249 CC
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- BORE SIZE METRIC:
- 76.95 MM
- PRODUCT NAME:
- PISTON KIT
$244.95Qty in Cart: 0Quantity:Price:$244.95Subtotal: -
ATHENA Piston Kit S4C04850003B
ATHENA
$119.95ATHENA Piston Kit S4C04850003BTwo-stroke pistons are made from 4032 silicium, Four-stroke pistons are made from 2618 silicium - the same material used to produce Formula 1 pistons, Both include 3% copper in materials for better heat resistance, All...09104655- SKU:
- 09104655
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- RIDING STYLE:
- OFF-ROAD
- BORE SIZE METRIC:
- 48.45 MM
- COMPRESSION RATIO IMPERIAL:
- STOCK
- PISTON HEAD SHAPE:
- DOMED
- UNITS:
- KIT
- DISPLACEMENT:
- 85 CC
- TYPE:
- B
- PRODUCT NAME:
- PISTON KIT
$119.95 -
ATHENA Complete Gasket Kit - Kawasaki P400250850030
ATHENA
$70.95ATHENA Complete Gasket Kit Kawasaki P400250850030Superior-quality gasket sets from Athena, Head gaskets feature rubber-coated spring steel construction, Soft steel base gaskets are rubber coated, Steel core materials feature high springback and superior...09341520- SKU:
- 09341520
- Availability:
- Ships Same Business Day
- Weight:
- 0.21 LBS
- PRODUCT NAME:
- GASKET KIT
- ENGINE TYPE:
- -
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- UNITS:
- KIT
$70.95Qty in Cart: 0Quantity:Price:$70.95Subtotal:
