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Due to Thanksgiving and the holiday rush, our current handling time is approximately 4–5 business days. We sincerely appreciate your patience and understanding. We truly appreciate your business and are thankful for another great year serving our customers. If you have any questions or concerns, please contact us—our team is working as hard as possible to ship all orders promptly.
Due to Thanksgiving and the holiday rush, our current handling time is approximately 4–5 business days. We sincerely appreciate your patience and understanding. We truly appreciate your business and are thankful for another great year serving our customers. If you have any questions or concerns, please contact us—our team is working as hard as possible to ship all orders promptly.

Yamaha YFZ450 / YFZ450R / YFZ450F / YFZ450X

Yamaha 450cc ATV Quad Parts YFZ450 / YFZ450R / YFZ450F / YFZ450X

Rebuild Kits
Top End | Bottom End | Complete Engine Rebuild | Complete Engines | 

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Bearings | Camshafts | Carbs/Jetting | Cables | Clutch Components | Cooling Systems | Crankshafts | Cylinder & Head Stud Kits | Cylinder Heads | Exhaust Studs | Gaskets/Seals | Grips | Intake Components | Oil System | Pistons | Spark Plugs | Timing Chains/Guides /Tensioners | Titanium Hardware | Valvetrain Components | 

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04 05 06 Yamaha YFZ450 YFZ 450 Wiseco Heavy Duty Clutch Basket Fibers & Springs

Wiseco

WPP3028, RMS-4172, H313Heavy Duty Wiseco Race Billet Clutch Basket, Steels, Fibers & SpringsFits Yamaha YFZ450 Carb Models Years  2004 2005 200...

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$336.03

07-13 Yamaha YFZ450 YFZ 450 Wiseco Heavy Duty Clutch Basket Steel Fibers Springs

Wiseco

Heavy Duty Wiseco Race Billet Clutch Basket, Steels, Fibers & SpringsFits Yamaha YFZ450 Carb Models Years  2007 2008 2009 2010 2011 2012 2013 O...

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$304.99
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YFZ450 YFZ 450 98mm Piston +3 Big Bore Wiseco 480 Forged Cometic Top Gaskets Kit

Wiseco

FITS ALL YAMAHA YFZ450 CARB MODELS AND YEARS - DOES NOT FIT FI MODEL YFZ450RBUY IN BULK AND SAVE $$$$ (Website Visitors Please Contact Us Directly ...

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Yamaha YFZ450 YFZ 450 98mm Wiseco Piston 12.75:1 Big Bore Kit & Cometic Gaskets

Wiseco

Upgrade your carbureted Yamaha YFZ450 with a USA-made 98mm Wiseco forged piston and Cometic MLS gasket kit. Fits 2004–2009 & 2012–2013. High-co...

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$249.99
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BPRATV YFZ450 YFZ 450 98mm Big Bore Top End Kit Wiseco Forged Piston MLS Gaskets

Wiseco

Upgrade your carbureted Yamaha YFZ450 with a USA-made 98mm Wiseco forged piston and Cometic MLS gasket kit. Fits 2004–2009 & 2012–2013. High-co...

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$249.99
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YFZ450 98mm Big Bore Wiseco Piston & Cometic Gasket Kit 2004-2013 BPRATV Custom

Wiseco

Upgrade your carbureted Yamaha YFZ450 with a USA-made 98mm Wiseco forged piston and Cometic MLS gasket kit. Fits 2004–2009 & 2012–2013. High-co...

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$249.99
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$249.99
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YFZ450 YFZ 450 98mm 98mil CUSTOM Forged Wiseco Piston +3 Big Bore MLS Gasket Kit

Wiseco

Upgrade your carbureted Yamaha YFZ450 with a USA-made 98mm Wiseco forged piston and Cometic MLS gasket kit. Fits 2004–2009 & 2012–2013. High-co...

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$249.99
$249.99 - $249.99
$249.99
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YFZ450 YFZ 450 98mm Wiseco Piston +3mm Big Bore Head Gasket Top End Rebuild Kit

Wiseco

Upgrade your carbureted Yamaha YFZ450 with a USA-made 98mm Wiseco forged piston and Cometic MLS gasket kit. Fits 2004–2009 & 2012–2013. High-co...

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$249.99
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$249.99
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YFZ450R YFZ 450R 98mm 98 CUSTOM Forged Wiseco Piston +3 Big Bore MLS Gasket Kit

Wiseco

Upgrade your Yamaha YFZ450R or YFZ450X with a USA-made 98mm Wiseco forged piston and Cometic MLS gasket kit. Fits 2009–2025. High-compression, race...

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$249.99
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$199.98
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$219.95
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$186.97
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Yamaha YFZ450 Wiseco STD Bore 95mm Top End Piston Kit 4865M09500 YFZ450R YFZ450X

Wiseco

4865M09500,4835M09500,M1000,M1100,284685,8784DA,5TG-11631-11-00, 5TG-11631-12-00, 5TG-11633-10-00, 5TG-11603-00-00,  93450-22027-00,3741XS, S641, C...

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Yamaha YFZ450 YFZ 450R YFZ450X Wiseco Piston Kit OEM 95mm 4 Stroke Forged Series

Wiseco

4865M09500,4835M09500,M1000,M1100,284685,8784DA,5TG-11631-11-00, 5TG-11631-12-00, 5TG-11633-10-00, 5TG-11603-00-00,  93450-22027-00,3741XS, S641, C...

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YFZ450 YFZ450R Wiseco Forged Piston Kit 95mm Stock Bore Top End Kit # 4865M09500

Wiseco

4865M09500,4835M09500,M1000,M1100,284685,8784DA,5TG-11631-11-00, 5TG-11631-12-00, 5TG-11633-10-00, 5TG-11603-00-00,  93450-22027-00,3741XS, S641, C...

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$219.95
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$219.95
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New Wiseco 95mm Stock Bore Top End Piston Kit Yamaha YFZ450 YFZ450R YFZ450X USA

Wiseco

4865M09500,4835M09500,M1000,M1100,284685,8784DA,5TG-11631-11-00, 5TG-11631-12-00, 5TG-11633-10-00, 5TG-11603-00-00,  93450-22027-00,3741XS, S641, C...

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$185.88
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Yamaha YFZ450 YFZ450R YFZ 450X Wiseco 95mm Piston Forged Top End Rebuild Kit USA

Wiseco

4865M09500,4835M09500,M1000,M1100,284685,8784DA,5TG-11631-11-00, 5TG-11631-12-00, 5TG-11633-10-00, 5TG-11603-00-00,  93450-22027-00,3741XS, S641, C...

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$219.95
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$418.80
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$418.80
$298.88
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09 10 Yamaha YFZ450R YFZ 450R Wiseco Heavy Duty CNC Clutch Basket Fibers Springs

Wiseco

All-New 2009 - 2010 Yamaha YFZ450R Wiseco Heavy Duty CNC Billet Clutch Basket and BPRATV Clutch Kit (Fibers, Steel Plates, and Springs) Precisio...

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$277.60
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$277.60
$224.98
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$224.98

YFZ450R YFZ 450R 95mm Stock Standard Bore Wiseco Pump Gas Piston & Gaskets

Wiseco

4865M09500,4835M09500,C7908,C3178,5TG-11631-12-00, M1000, C7908, H2477027S, 2S2-11181-00-00 2S2-11181-00--00 2S2-11351-00-00 3VD-14613-0100, 99999-...

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$277.60
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YFZ450R YFZ 450R 95mm Stock Standard Bore Wiseco Pump Gas Piston Cometic Gaskets

Wiseco

4865M09500,4835M09500,C7908,C3178,5TG-11631-12-00, M1000, C7908, H2477027S, 2S2-11181-00-00 2S2-11181-00--00 2S2-11351-00-00 3VD-14613-0100, 99999-...

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$277.60
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$277.60
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$224.98
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$277.60
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$224.98
$224.98 - $224.98
$224.98

Yamaha YFZ450R YFZ 450R 95mm Stock Bore Wiseco Pump Gas Piston & Cometic Gaskets

Wiseco

4865M09500,4835M09500,C7908,C3178,5TG-11631-12-00, M1000, C7908, H2477027S, 2S2-11181-00-00 2S2-11181-00--00 2S2-11351-00-00 3VD-14613-0100, 99999-...

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$277.60
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$277.60
$224.98
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$165.99 - $165.99
$165.99
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Yamaha YFZ450 YFZ450R YFZ450X YFZ Wiseco Black Billet Clutch Basket Cover Gasket

Wiseco

Heavy Duty Wiseco Race Billet Clutch Cover & Clutch Cover Gasket Fits Yamaha YFZ450 & YFZ450R ATV Models Years 2004 2005 2006 2007 2008 ...

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$52.83
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$52.83
$41.58
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$41.58

YFZ450R YFZ 450R 98mm Wiseco JE Rings 98 mil Hi Temp Nitrite Coated Piston Rings

Wiseco

FITS JE and WISECO 98mm PISTONSOne set of hi temp rings Wiseco / JE Piston RingsPart# 3858XS / XS980098mm bore size onlyDoes not fit any other size...

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$41.58
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