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 203

Pro-X Racing Parts Piston Kits for 2006-2007 TC250, 2006-2009 TE250, 2008-2009 TXC 250 - 01.6336.B

ProX Piston Kit Husq TC250 '06-07/TE250 '06-09 (75.97mm)

Part Number: PXR-01-6336-B

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Pro-X Racing Parts Powersports Piston Rings 02.6336

ProX Ring Set Husq TC250 '06-07 + TE250 '06-09 (76.00mm)

Part Number: PXR-02-6336

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Pro-X Racing Parts Piston Kits for 2012-2013 TC250, 2013 TXC250R - 01.6341.A

ProX Piston Kit Husq TC250 '12-13/TE/TXC250 '13 (78.95mm)

Part Number: PXR-01-6341-A

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Pro-X Racing Parts Piston Kits for 2012-2013 TC250, 2013 TXC250R - 01.6341.C

ProX Piston Kit Husq TC250 '12-13/TE/TXC250 '13 (78.97mm)

Part Number: PXR-01-6341-C

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

K&N Powersports Oil Filters KN-116

Oil Filters, Powersports, Cartridge, High Flow, 1.38 in. Tall, 0.44 in. ID, 1.56 in. OD, Nitrile Rubber, Bypass/Relief Valves, for use on Honda®, Each

Part Number: KNN-KN-116

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Pro-X Racing Parts Valve Shims 29.948340

ProX Valve Shim 9.48 x 3.40 mm. (5 pcs.)

Part Number: PXR-29-948340

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Pro-X Racing Parts Valve Shims 29.948302.5

ProX Valve Shim 9.48 x 3.025 mm. (5 pcs.)

Part Number: PXR-29-948302-5

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Wiseco Powersports Piston Wrist Pins S677

Piston Pin, Steel, Tapered, 16.00mm x 40.00mm, Each

Part Number: WIS-S677

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 29.948185

ProX Valve Shim 9.48 x 1.85 mm. (5 pcs.)

Part Number: PXR-29-948185

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Pro-X Racing Parts Valve Shims 29.948175

ProX Valve Shim 9.48 x 1.75 mm. (5 pcs.)

Part Number: PXR-29-948175

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Wiseco Powersports Piston Wrist Pins S677C

Piston Pin, Steel, DLC Coated, Tapered, 16.00mm x 40.00mm, Each

Part Number: WIS-S677C

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

Vertex Replica Piston Kits 23630B

Piston and Ring Kit, Replica, Cast Aluminum, 66.400mm Bore, Gas Gas, Husqvarna, KTM, Kit

Part Number: VPX-23630B

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Pro-X Racing Parts Valve Shims 29.748255

ProX Valve Shim 7.48 x 2.55 mm. (5 pcs.)

Part Number: PXR-29-748255

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Pro-X Racing Parts Valve Shims 29.748240

ProX Valve Shim 7.48 x 2.40 mm. (5 pcs.)

Part Number: PXR-29-748240

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Pro-X Racing Parts Valve Shims 29.748190

Valve Shims, 1.90mm Thickness, 7.48mm Diameter, for use on Honda®, Gas Gas, Husqvarna, Kawasaki, Sherco, Suzuki, Yamaha, Set of 5

Part Number: PXR-29-748190

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Pro-X Racing Parts Valve Shims 29.948225

ProX Valve Shim 9.48 x 2.25 mm. (5 pcs.)

Part Number: PXR-29-948225

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Vertex Replica Piston Kits 23630A

Piston and Ring Kit, Replica, Cast Aluminum, 66.400mm Bore, Gas Gas, Husqvarna, KTM, Kit

Part Number: VPX-23630A

Not Yet Reviewed

Estimated Ship Date: Apr 24, 2026 if ordered today

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Estimated Ship Date: Apr 24, 2026 if ordered today

Pro-X Racing Parts Valve Shims 29.748230

ProX Valve Shim 7.48 x 2.30 mm. (5 pcs.)

Part Number: PXR-29-748230

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Pro-X Racing Parts Piston Clips 05.1612C

Piston Wrist Pin Retainers, Wire Lock, Steel, Gas Gas, for use on Honda®, Husaberg, Husqvarna, Kawasaki, KTM, Polaris, Suzuki, TM, Yamaha, Pair

Part Number: PXR-05-1612C

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Pro-X Racing Parts Piston Kits 01.6343.A

ProX Piston Kit KTM250SX '03-22 + KTM250EXC '06-22 (66.34mm)

Part Number: PXR-01-6343-A

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Emgo Oil Filters 61-2645

Oil Filter, Cartridge Style, for use on Honda®, Husqvarna, Each

Part Number: EMG-10-99210

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Pro-X Racing Parts Valve Shims 29.748300

ProX Valve Shim 7.48 x 3.00 mm. (5 pcs.)

Part Number: PXR-29-748300

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Hot Rods Output Shaft Kits OSK0056

countershaft Seal COUNTERSHAFT SEAL KIT COUNTERSHAFT SEAL KIT

Part Number: HRI-OSK0056

Not Yet Reviewed

Estimated Ship Date: Apr 17, 2026 if ordered today

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Estimated Ship Date: Apr 17, 2026 if ordered today

Pro-X Racing Parts Valve Shims 29.948195

ProX Valve Shim 9.48 x 1.95 mm. (5 pcs.)

Part Number: PXR-29-948195

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Pro-X Racing Parts Countershaft Seal Kits 26.640003

ProX Countershaft Seal Kit KTM250SX'03-16 + 250/300EXC'04-16

Part Number: PXR-26-640003

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

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