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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Results 1 - 25 of 190

Wiseco Powersports 4-Stroke Forged Series Piston Kits 4714M09200

Wiseco Powersports 4-Stroke Forged Series Piston Kits 4714M09200

Engine Piston, Suz DRZ/Z400 '00-19/Kaw KLX/KFX400'03-06

Part Number: WIS-4714M09200

Not Yet Reviewed

Estimated Ship Date: May 4, 2026 if ordered today

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Estimated Ship Date: May 4, 2026 if ordered today

Pro-X Racing Parts Oil Filters 54.34139

ProX Oilfilter DR-Z400 '00-21 + LT-Z400 '03-18 (1-Pce.)

Part Number: PXR-54-34139

Not Yet Reviewed

Estimated Ship Date: Apr 29, 2026 if ordered today

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Estimated Ship Date: Apr 29, 2026 if ordered today

Pro-X Racing Parts Piston Kits 01.3420.B

ProX Pstn Kit DR-Z400 '00-21/LT-Z400 '03-18 12.2:1 (89.97mm)

Part Number: PXR-01-3420-B

Not Yet Reviewed

Estimated Ship Date: Apr 29, 2026 if ordered today

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Estimated Ship Date: Apr 29, 2026 if ordered today

Pro-X Racing Parts Piston Kits 01.3420.C

ProX Pstn Kit DR-Z400 '00-21/LT-Z400 '03-18 12.2:1 (89.98mm)

Part Number: PXR-01-3420-C

Not Yet Reviewed

Estimated Ship Date: Apr 29, 2026 if ordered today

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Estimated Ship Date: Apr 29, 2026 if ordered today

Pro-X Racing Parts Oil Filters 54.34139-50

ProX Oilfilter DR-Z400 '00-21 + LT-Z400 '03-18 (50-Pcs.)

Part Number: PXR-54-34139-50

Not Yet Reviewed

Estimated Ship Date: Apr 29, 2026 if ordered today

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Estimated Ship Date: Apr 29, 2026 if ordered today

Pro-X Racing Parts Piston Kits 01.3420.A

ProX Pstn Kit DR-Z400 '00-21/LT-Z400 '03-18 12.2:1 (89.96mm)

Part Number: PXR-01-3420-A

Not Yet Reviewed

Estimated Ship Date: Apr 29, 2026 if ordered today

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Estimated Ship Date: Apr 29, 2026 if ordered today

Pro-X Racing Parts Cam Chains 31.3403

ProX Camchain DR-Z400 '00-21 + LT-Z400 '03-18

Part Number: PXR-31-3403

Not Yet Reviewed

Estimated Ship Date: Apr 29, 2026 if ordered today

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Estimated Ship Date: Apr 29, 2026 if ordered today

Pro-X Racing Parts Wheel Bearings 23.S113031

ProX Rearwheel Bearing Set LT-Z400 '03-08

Part Number: PXR-23-S113031

Not Yet Reviewed

Estimated Ship Date: Apr 29, 2026 if ordered today

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Estimated Ship Date: Apr 29, 2026 if ordered today

WIX Filters Oil Filters 51358

Oil Filter, Replacement, Each

Part Number: WIX-51358

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

ACDelco Gold Oil Filters 19427702

Oil Filter, Canister, for use on Honda®, Ford, Mercury, Hyundai, Kia, Infiniti, Mazda, Mitsubishi, Nissan

Part Number: ADO-PF1237

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Mahle Original Oil Filters OC 711

Oil Filter, Canister, Ford, Honda®, Infiniti, Kia, Mazda, Mercury, Nissan, Saab, Subaru, Each

Part Number: MAH-OC711

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

K&N Premium Powersports Oil Filters KN-303

Oil Filter, Powersports, Canister, M20 x 1.5 Thread, 3.25 in. Tall, 2.59 in. OD, for use on Honda®, Kawasaki, Polaris, Yamaha, Each

Part Number: KNN-KN-303

5.0 out of 5 stars ( 14 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Fram Extra Guard Oil Filters PH6017A

Oil Filter, Extra Guard, Canister Style, Each

Part Number: FRM-PH6017A

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Hot Cams Valve Shims 68-2072

Valve Shims, 9.48mm Diameter, 1.20mm - 3.50mm Thickness, for use on Honda®, Arctic Cat, Kawasaki, Polaris, Suzuki, Yamaha, Kit

Part Number: HCP-HCSHIM02

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Pro-X Racing Parts Valve Shims 29.948257.5

ProX Valve Shim 9.48 x 2.575 mm. (5 pcs.)

Part Number: PXR-29-948257-5

Not Yet Reviewed

Estimated Ship Date: Apr 29, 2026 if ordered today

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Estimated Ship Date: Apr 29, 2026 if ordered today

Hot Cams Refill Shim Packages 68-948260

Valve Shims, 2.60mm Thickness, 9.48mm Diameter, for use on Honda®, Arctic Cat, Kawasaki, Suzuki, Yamaha, Set of 5

Part Number: HCP-5PK948260

Not Yet Reviewed

Estimated Ship Date: Today

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Hot Cams Refill Shim Packages 68-948265

Valve Shims, 2.65mm Thickness, 9.48mm Diameter, for use on Honda®, Arctic Cat, Kawasaki, Suzuki, Yamaha, Set of 5

Part Number: HCP-5PK948265

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

K&N Powersports Oil Filters KN-139

Oil Filter, Powersports, Cartridge, 1.72 in. Tall, 0.50 in, ID, 1.75 in. OD, Arctic Cat, CCM, Kawasaki, Suzuki, Models, Each

Part Number: KNN-KN-139

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Cylinder Works Standard Bore Cylinder Kits 422-40001K

Cylinder Kit, Forged Aluminum, Standard Bore, Arctic Cat, Kawasaki, Suzuki, Set

Part Number: CLW-40001-K01

Not Yet Reviewed

Estimated Ship Date: Apr 29, 2026 if ordered today

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Estimated Ship Date: Apr 29, 2026 if ordered today

All Balls Racing Countershaft Seal Kits 25-4025

Countershaft seal kit

Part Number: ALB-25-4025

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

Pro-X Racing Parts Valve Shims 29.948342.5

ProX Valve Shim 9.48 x 3.425 mm. (5 pcs.)

Part Number: PXR-29-948342-5

Not Yet Reviewed

Estimated Ship Date: Apr 29, 2026 if ordered today

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Estimated Ship Date: Apr 29, 2026 if ordered today

Pro-X Racing Parts Valve Shims 29.948280

ProX Valve Shim 9.48 x 2.80 mm. (5 pcs.)

Part Number: PXR-29-948280

Not Yet Reviewed

Estimated Ship Date: Apr 29, 2026 if ordered today

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Estimated Ship Date: Apr 29, 2026 if ordered today

Pro-X Racing Parts Valve Shims 29.948165

ProX Valve Shim 9.48 x 1.65 mm. (5 pcs.)

Part Number: PXR-29-948165

Not Yet Reviewed

Estimated Ship Date: Apr 29, 2026 if ordered today

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Estimated Ship Date: Apr 29, 2026 if ordered today

Hot Cams Refill Shim Packages 68-948230

Valve Shims, 2.30mm Thickness, 9.48mm Diameter, for use on Honda®, Arctic Cat, Kawasaki, Suzuki, Yamaha, Set of 5

Part Number: HCP-5PK948230

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Hot Cams Refill Shim Packages 68-948145

Valve Shims, 1.45mm Thickness, 9.48mm Diameter, for use on Honda®, Arctic Cat, Kawasaki, Suzuki, Yamaha, Set of 5

Part Number: HCP-5PK948145

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

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