YAMAHA YFZ450 Engines & Components

Pro-X Racing Parts Valve Shims 29.948347.5

ProX Valve Shim 9.48 x 3.475 mm. (5 pcs.)

Part Number: PXR-29-948347-5

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Estimated Ship Date: May 8, 2026 if ordered today

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Estimated Ship Date: May 8, 2026 if ordered today

Pro-X Racing Parts Valve Shims 29.948282.5

ProX Valve Shim 9.48 x 2.825 mm. (5 pcs.)

Part Number: PXR-29-948282-5

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Estimated Ship Date: May 8, 2026 if ordered today

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Estimated Ship Date: May 8, 2026 if ordered today

Pro-X Racing Parts Valve Shims 29.948272.5

ProX Valve Shim 9.48 x 2.725 mm. (5 pcs.)

Part Number: PXR-29-948272-5

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Estimated Ship Date: May 8, 2026 if ordered today

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Estimated Ship Date: May 8, 2026 if ordered today

Pro-X Racing Parts Valve Shims 29.948232.5

ProX Valve Shim 9.48 x 2.325 mm. (5 pcs.)

Part Number: PXR-29-948232-5

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Estimated Ship Date: May 8, 2026 if ordered today

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Estimated Ship Date: May 8, 2026 if ordered today

Pro-X Racing Parts Valve Shims 29.948252.5

ProX Valve Shim 9.48 x 2.525 mm. (5 pcs.)

Part Number: PXR-29-948252-5

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Estimated Ship Date: May 8, 2026 if ordered today

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Estimated Ship Date: May 8, 2026 if ordered today

Pro-X Racing Parts Valve Shims 29.948317.5

ProX Valve Shim 9.48 x 3.175 mm. (5 pcs.)

Part Number: PXR-29-948317-5

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Estimated Ship Date: May 8, 2026 if ordered today

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Estimated Ship Date: May 8, 2026 if ordered today

Pro-X Racing Parts Valve Shims 29.948155

ProX Valve Shim 9.48 x 1.55 mm. (5 pcs.)

Part Number: PXR-29-948155

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Estimated Ship Date: May 8, 2026 if ordered today

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Estimated Ship Date: May 8, 2026 if ordered today

Vertex Top-End Piston Kits for 2004-2013 YFZ450, 2006-2007 YFZ450 BILL BALANCE EDITION, 2007-2008 YFZ450 SE - VTKTC23551A

Top-End Piston Kit, Forged Aluminum, 95.000mm Bore, 13.00 to 1 Compression, Yamaha, Kit

Part Number: VPX-VTKTC23551A

Not Yet Reviewed

Estimated Ship Date: May 8, 2026 if ordered today

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Estimated Ship Date: May 8, 2026 if ordered today

Hot Cams Refill Shim Packages 68-948290

Valve Shims, 2.90mm Thickness, 9.48mm Diameter, for use on Honda®, Arctic Cat, Kawasaki, Suzuki, Yamaha, Set of 5

Part Number: HCP-5PK948290

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Estimated Ship Date: Apr 29, 2026 if ordered today

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Estimated Ship Date: Apr 29, 2026 if ordered today

Hot Cams Drop-In Performance Camshafts for 2004-2009 YFZ450, 2006-2007 YFZ450 BILL BALANCE EDITION, 2007-2008 YFZ450 SE - 68-2143

Camshaft, Powersports, Performance, Stage 3, Yamaha, ATV, Each

Part Number: HCP-4098-3E

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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 68-948280

Valve Shims, 2.80mm Thickness, 9.48mm Diameter, for use on Honda®, Arctic Cat, Kawasaki, Suzuki, Yamaha, Set of 5

Part Number: HCP-5PK948280

Not Yet Reviewed

Estimated Ship Date: May 1, 2026 if ordered today

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Estimated Ship Date: May 1, 2026 if ordered today

Wiseco 4-Stroke Piston Rings 3858XS

Piston Rings, Chrome, 98.00mm Bore, Arctic Cat, Suzuki, Yamaha, Set

Part Number: WIS-3858XS

Not Yet Reviewed

Estimated Ship Date: May 13, 2026 if ordered today

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Estimated Ship Date: May 13, 2026 if ordered today

Hot Rods Complete Bottom End Rebuild Kits CBK0098

Rebuild Kit, Complete Bottom End, Yamaha, YFZ450, Kit

Part Number: HRI-CBK0098

Not Yet Reviewed

Estimated Ship Date: May 1, 2026 if ordered today

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Estimated Ship Date: May 1, 2026 if ordered today

Hot Rods Connecting Rods for 2004-2005 YFZ450 - 421-8620

Connecting Rod Kit, Powersports, Forged Steel, Connecting Rod, Bearings, Kit

Part Number: HRI-8620

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 High-Compression Piston Kits 23551A

Piston and Ring Kit, High-Compression, Forged Aluminum, 95.500mm Bore, 13.00 to 1 Compression, Yamaha, Kit

Part Number: VPX-23551A

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Estimated Ship Date: May 8, 2026 if ordered today

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Estimated Ship Date: May 8, 2026 if ordered today

Pro-X Racing Parts Valve Shims 29.948215

ProX Valve Shim 9.48 x 2.15 mm. (5 pcs.)

Part Number: PXR-29-948215

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Estimated Ship Date: May 8, 2026 if ordered today

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Estimated Ship Date: May 8, 2026 if ordered today

Pro-X Racing Parts Valve Shims 29.948130

ProX Valve Shim 9.48 x 1.30 mm. (5 pcs.)

Part Number: PXR-29-948130

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Estimated Ship Date: May 8, 2026 if ordered today

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Estimated Ship Date: May 8, 2026 if ordered today

Pro-X Racing Parts Valve Shims 29.948345

ProX Valve Shim 9.48 x 3.45 mm. (5 pcs.)

Part Number: PXR-29-948345

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Estimated Ship Date: May 8, 2026 if ordered today

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Estimated Ship Date: May 8, 2026 if ordered today

Pro-X Racing Parts Valve Shims 29.948315

ProX Valve Shim 9.48 x 3.15 mm. (5 pcs.)

Part Number: PXR-29-948315

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Estimated Ship Date: May 8, 2026 if ordered today

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Estimated Ship Date: May 8, 2026 if ordered today

Pro-X Racing Parts Valve Shims 29.948335

ProX Valve Shim 9.48 x 3.35 mm. (5 pcs.)

Part Number: PXR-29-948335

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Estimated Ship Date: May 8, 2026 if ordered today

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Estimated Ship Date: May 8, 2026 if ordered today

Pro-X Racing Parts Valve Shims 29.948275

ProX Valve Shim 9.48 x 2.75 mm. (5 pcs.)

Part Number: PXR-29-948275

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Estimated Ship Date: May 8, 2026 if ordered today

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Estimated Ship Date: May 8, 2026 if ordered today

Pro-X Racing Parts Valve Shims 29.948145

ProX Valve Shim 9.48 x 1.45 mm. (5 pcs.)

Part Number: PXR-29-948145

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Estimated Ship Date: May 8, 2026 if ordered today

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Estimated Ship Date: May 8, 2026 if ordered today

Pro-X Racing Parts Wheel Bearings 23.S115026

Powersports Drivetrain Bearings and Seals, Wheel Bearing, Steel, Yamaha, Set

Part Number: PXR-23-S115026

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Estimated Ship Date: May 8, 2026 if ordered today

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Estimated Ship Date: May 8, 2026 if ordered today

Wiseco 4-Stroke Piston Rings 9600XS

96.0MM XS RING SET

Part Number: WIS-9600XS

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Pro-X Racing Parts Powersports Wrist Pin Bushings and Bearings 22.344220F

ProX Big End Cage (34x42x20) YZ400/426F/CRF450R Silver/Flat

Part Number: PXR-22-344220F

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Estimated Ship Date: May 8, 2026 if ordered today

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Estimated Ship Date: May 8, 2026 if ordered today