Engines & Engine Parts

Welcome to your headquarters for horsepower—the place to get everything you need to build real power and performance! We’ve got competition-proven crate engines, performance-matched...

Welcome to your headquarters for horsepower—the place to get everything you need to build real power and performance! We’ve got competition-proven crate engines, performance-matched top end kits, and complete rotating assemblies from the biggest names in the industry. You can add a set of high-flow cylinder heads to your powerplant, upgrade your valvetrain, improve your oiling system, or drop in a new set of pistons. We also have a complete selection of crankshafts, connecting rods, harmonic balancers, pulleys, and engine brackets. We even have everything you need to restore the horsepower that time has stolen from your...

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aFe Magnum FLOW Pro 5R Air Filters 27-90203R

aFe Magnum FLOW Pro 5R Air Filters 27-90203R

Track Series Intake Replacement Air Filter w/ Pro 5R Media 4 IN F x (7-3/4 x 6-1/2) IN B x (5-3/4 x 3-3/4) IN T x 7 IN H

Part Number: AFE-27-90203R

Not Yet Reviewed

Estimated Ship Date: Jan 12, 2026 if ordered today

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Estimated Ship Date: Jan 12, 2026 if ordered today

Pro-X Racing Parts Valve Shims 29.748165

ProX Valve Shim 7.48 x 1.65 mm. (5 pcs.)

Part Number: PXR-29-748165

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

Pro-X Racing Parts Valve Shims 29.748172.5

ProX Valve Shim 7.48 x 1.725 mm. (5 pcs.)

Part Number: PXR-29-748172-5

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

Pro-X Racing Parts Valve Shims 29.748177.5

ProX Valve Shim 7.48 x 1.775 mm. (5 pcs.)

Part Number: PXR-29-748177-5

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

Pro-X Racing Parts Valve Shims 29.748187.5

Valve Shims, 1.88mm Thickness, 7.48mm Diameter, for use on Honda®, Gas Gas, Husqvarna, Kawasaki, Sherco, Suzuki, Yamaha, Set of 5

Part Number: PXR-29-748187-5

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

Pro-X Racing Parts Valve Shims 29.748192.5

Valve Shims, 1.93mm Thickness, 7.48mm Diameter, for use on Honda®, Gas Gas, Husqvarna, Kawasaki, Sherco, Suzuki, Yamaha, Set of 5

Part Number: PXR-29-748192-5

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

Pro-X Racing Parts Valve Shims 29.890218

ProX Valve Shim KTM 8.90 x 2.18 mm. (5 pcs.)

Part Number: PXR-29-890218

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

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Estimated Ship Date: Jan 5, 2026 if ordered today

Pro-X Racing Parts Valve Shims 29.748205

Valve Shims, 2.05mm Thickness, 7.48mm Diameter, for use on Honda®, Gas Gas, Husqvarna, Kawasaki, Sherco, Suzuki, Yamaha, Set of 5

Part Number: PXR-29-748205

Not Yet Reviewed