Dirt Bike Engine
Dirt Bike Engine Parts at JJ Motorsports
Discover a full range of dirt bike engine components for rebuilding or upgrading your performance from JJ Motorsports. 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 to keep your engine running at peak efficiency on the track or trails.
Shop trusted brands like Wiseco for forged piston kits and K&N for high-flow oil filters. Explore related categories such as Dirt Bike Air and Fuel for intake upgrades or Dirt Bike Exhaust for complete systems.
Browse our in-stock inventory below with same-day shipping and expert support. Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
HOT RODS Connecting Rod 8163
HOT RODS
$135.95HOT RODS Connecting Rod 8163Heavy-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...423103- SKU:
- 423103
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- FEATURES:
- INCLUDES THRUST WASHERS
- PRODUCT NAME:
- CONNECTING ROD KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- ENGINE TYPE:
- 2-CYCLE
- MATERIAL:
- 8620 STEEL
$135.95Qty in Cart: 0Quantity:Price:$135.95Subtotal: -
HOT RODS Connecting Rod 8108
HOT RODS
$147.95HOT RODS Connecting Rod 8108Heavy-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...423102- SKU:
- 423102
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- ENGINE TYPE:
- 2-CYCLE
- FEATURES:
- INCLUDES THRUST WASHERS
- PRODUCT NAME:
- CONNECTING ROD KIT
- UNITS:
- KIT
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- 8620 STEEL
$147.95 -
ATHENA Complete Gasket Kit - Suzuki P400510850261
ATHENA
$35.95Superior-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 tensile strength, Revolutionary transparent...400510850261- SKU:
- 400510850261
- Availability:
- Ships Same Business Day
- Weight:
- 4.00 LBS
$35.95Qty in Cart: 0Quantity:Price:$35.95Subtotal: -
ATHENA Complete Gasket Kit - Suzuki P400510850252
ATHENA
$69.95Superior-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 tensile strength, Revolutionary transparent...400510850252- SKU:
- 400510850252
- Availability:
- Ships Same Business Day
- Weight:
- 4.00 LBS
$69.95Qty in Cart: 0Quantity:Price:$69.95Subtotal: -
ATHENA Complete Gasket Kit - Suzuki P400510850241
ATHENA
$74.95Superior-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 tensile strength, Revolutionary transparent...400510850241- SKU:
- 400510850241
- Availability:
- Ships Same Business Day
- Weight:
- 4.00 LBS
$74.95 -
ATHENA Complete Gasket Kit - Suzuki P400510850126
ATHENA
$44.95Superior-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 tensile strength, Revolutionary transparent...400510850126- SKU:
- 400510850126
- Availability:
- Ships Same Business Day
- Weight:
- 4.00 LBS
$44.95 -
ATHENA Complete Gasket Kit - Suzuki P400510850125
ATHENA
$40.95Superior-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 tensile strength, Revolutionary transparent...400510850125- SKU:
- 400510850125
- Availability:
- Ships Same Business Day
- Weight:
- 4.00 LBS
$40.95Qty in Cart: 0Quantity:Price:$40.95Subtotal: -
ATHENA Complete Gasket Kit - Suzuki P400510850082
ATHENA
$32.95Superior-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 tensile strength, Revolutionary transparent...400510850082- SKU:
- 400510850082
- Availability:
- Ships Same Business Day
- Weight:
- 3.00 LBS
$32.95Qty in Cart: 0Quantity:Price:$32.95Subtotal: -
ATHENA Complete Gasket Kit - Suzuki P400510850031
ATHENA
$86.95Superior-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 tensile strength, Revolutionary transparent...400510850031- SKU:
- 400510850031
- Availability:
- Ships Same Business Day
- Weight:
- 4.00 LBS
$86.95 -
ATHENA Complete Gasket Kit - Suzuki P400510850030
ATHENA
$74.95Superior-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 tensile strength, Revolutionary transparent...400510850030- SKU:
- 400510850030
- Availability:
- Ships Same Business Day
- Weight:
- 4.00 LBS
$74.95 -
ATHENA Top End Gasket Kit - Suzuki P400510600143
ATHENA
$30.95Specifically designed for the pro, semi-pro and amateur rider who freshens up their engine prior to a race or during midseason. Gives the rider a choice of using standard gas with stock compression, or race gas with a higher compression. Kits do not...400510600143- SKU:
- 400510600143
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
$30.95Qty in Cart: 0Quantity:Price:$30.95Subtotal: -
ATHENA Top End Gasket Kit - Suzuki P400510600124
ATHENA
$20.95Specifically designed for the pro, semi-pro and amateur rider who freshens up their engine prior to a race or during midseason. Gives the rider a choice of using standard gas with stock compression, or race gas with a higher compression. Kits do not...400510600124- SKU:
- 400510600124
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
$20.95 -
ATHENA Top End Gasket Kit - Suzuki P400510600013
ATHENA
$10.95Specifically designed for the pro, semi-pro and amateur rider who freshens up their engine prior to a race or during midseason. Gives the rider a choice of using standard gas with stock compression, or race gas with a higher compression. Kits do not...4.00511E+11- SKU:
- 4.00511E+11
- Availability:
- Ships Same Business Day
- Weight:
- 0.00 LBS
$10.95Qty in Cart: 0Quantity:Price:$10.95Subtotal: -
ATHENA Complete Gasket Kit - Yamaha P400485850491
ATHENA
$34.95Superior-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 tensile strength, Revolutionary transparent...400485850491- SKU:
- 400485850491
- Availability:
- Ships Same Business Day
- Weight:
- 4.00 LBS
$34.95 -
ATHENA Complete Gasket Kit - Yamaha P400485850490
ATHENA
$34.95Superior-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 tensile strength, Revolutionary transparent...400485850490- SKU:
- 400485850490
- Availability:
- Ships Same Business Day
- Weight:
- 4.00 LBS
$34.95Qty in Cart: 0Quantity:Price:$34.95Subtotal: -
ATHENA Complete Gasket Kit - Yamaha P400485850270
ATHENA
$42.95Superior-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 tensile strength, Revolutionary transparent...400485850270- SKU:
- 400485850270
- Availability:
- Ships Same Business Day
- Weight:
- 4.00 LBS
$42.95 -
ATHENA Complete Gasket Kit - Yamaha P400485850267
ATHENA
$53.95Superior-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 tensile strength, Revolutionary transparent...400485850267- SKU:
- 400485850267
- Availability:
- Ships Same Business Day
- Weight:
- 4.00 LBS
$53.95 -
ATHENA Complete Gasket Kit - Yamaha P400485850254
ATHENA
$46.95Superior-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 tensile strength, Revolutionary transparent...400485850254- SKU:
- 400485850254
- Availability:
- Ships Same Business Day
- Weight:
- 4.00 LBS
$46.95 -
ATHENA Complete Gasket Kit - Yamaha P400485850253/1
ATHENA
$38.95Superior-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 tensile strength, Revolutionary transparent...400485850253- SKU:
- 400485850253
- Availability:
- Ships Same Business Day
- Weight:
- 4.00 LBS
$38.95 -
ATHENA Complete Gasket Kit - Yamaha P400485850251
ATHENA
$38.95Superior-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 tensile strength, Revolutionary transparent...400485850251- SKU:
- 400485850251
- Availability:
- Ships Same Business Day
- Weight:
- 4.00 LBS
$38.95
