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2003 Yamaha Grizzly 660 4x4 Engine

2003 Yamaha Grizzly 660 4x4
Oil Filter:
KN-303
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Wiseco
Top End Kit
$271.19 - $315.69
$241.99 - $280.99
You save up to $34.70 (11%)
(19)
Wiseco Top End Kit Wiseco-forged high-silicon aluminum alloy pistons are computer-machined to exacting tolerances Designed for greater strength with reduced weight and improved heat transfer Piston k
Wiseco
Pro Lite Piston Kit
$181.95 - $221.95
$162.99 - $198.99
You save up to $22.96 (10%)
(12)
Wiseco Pro Lite Piston Kit Available for both two stroke and four stroke bikes, the Wiseco Pro Lite Piston Kit is both a great OEM alternative and an easy way to boost the power. Choose stock bore siz
Wiseco
Complete Bottom End Rebuild Kit
$409.99
$364.99
You save $45.00 (11%)
(11)
Wiseco Complete Bottom End Rebuild Kit Each kit contains everything you need to complete your rebuild the right way, the first time- crankshaft and connecting rod, all applicable bearings, and complet
Moose Racing Top End Gasket Kit Performance sets designed for a piston replacement Top-end gasket sets include high-performance head, base, intake and exhaust gaskets Cost-effective way to raise c
Moose Racing Complete Gasket Set All gaskets needed for engine rebuild are included in each set with the exception of oil seals Unmatched reliability and performance from high-tech materials Design
Athena Complete Gasket Kit Manufactured in "State-of-the-Art" computer controlled facilities All gaskets made from the highest quality materials All gasket sets meet or exceed OEM specifications The
Wiseco
Cam Chain
$71.95
$64.99
You save $6.96 (10%)
(0)
Wiseco Cam Chain Made from premium materials to reduce friction and increase service life “M” style chain gives you maximum strength and durability Wiseco’s in-house
Wiseco
Stainless Steel Engine Valves
$17.99 - $31.59
$15.89 - $27.79
You save up to $3.80 (12%)
(1)
Wiseco Stainless Steel Engine Valves Stainless steel valves are manufactured to exacting tolerances from the highest grade material Forged one piece valves for unmatched strength CVD/CNI coated t
Vesrah Racing
Engine Valves
$25.95 - $46.95
(0)
Vesrah Engine Valves Vesrah valves are precision manufactured from top-quality materials to match OEM valves Sold Individually **Closeouts are limited to stock on hand**
Vertex
Piston Kit
$148.95 - $148.99
$129.99
You save $19.00 (13%)
(1)
Vertex Piston Kit Restore that crisp clean power that your dirtbike or quad use to have with a new Piston Kit from Vertex. Or step up the power with a high compression Piston Kit, All kits ar
Hot Rods
Crankshaft Assembly
$375.95 - $430.95
$357.99 - $409.99
You save up to $20.96 (5%)
(1)
Hot Rods Crankshaft Assembly All new assembly sold complete with Hot Rods connecting rod Factory assembled and trued to OEM specifications, Hot Rods cranks will meet or surpass the OEM in perform
Wiseco
Connecting Rod
$123.95
$110.99
You save $12.96 (10%)
(6)
Wiseco Connecting Rod Double forged, connecting rods maintain superior dimensional consistency through improved grain flow. Shot peening eliminates residual stresses and smoothly blends the rod forg
Hot Rods
Connecting Rod
$159.95
$151.99
You save $7.96 (5%)
(0)
Hot Rods Connecting Rod Affordable premium quality replacement connecting rods Forged from 8620 AISI steel, hardness tested to insure strength and durability AISI carburized crankpi
Pro X Racing Parts Engine Valve ProX also offers a complete line of steel valves. The ProX steel valves are manufactured of premium grade steel to exact OEM specifications and tolerances. The ProX val
Moose Racing
High Performance Connecting Rod
$249.95
$213.20
You save $36.75 (15%)
(0)
Moose Racing High Performance Connecting RodMoose Racing has teamed up with CP-Carrillo to bring you the highest quality, professional connecting rod 100% machined from oversized forging insures prope
Hot Cams Mudbuster Cam When you're trying to make it through the mud the last thing you want to worry about is your engine bogging and getting you stuck. Change that with this Hot Cams Mudbus
QuadBoss Oil Seal Set Includes all oil seals necessary to rebuild the engine and transmission including crankshaft, output shaft, water pump, clutch, shift and starter seals
Winderosa Top End Gasket Set Get your engine running like it did when it was brand new with the help of this Winderosa Top End Gasket Set. Top End Gasket Set Include: Head Gasket Base Gasket Upper

Latest Reviews

Jake (Colchester, CT)

Fit
Quality
Installation
Recommend

Was good...

Fit great and was an easy installation but blew it first time I took it to the track.

Sean (Los Angeles, CA)

Fit
Quality
Installation
Recommend

Replaced the top end on my 96 cr125r! Fit great perform well but the price is the problem. For 70-80 bucks they'd be perfect!

simon (berkshire, BRK)

Fit
Quality
Installation
Recommend

lully job

Ordered my wiseco bottom end kit and everything fell together. Fired up second kick, now first time everytime! I will run it very gently, because that is absolute key in a good engine as some do thrash and wonder why the cranks snapped or flattened bearings!!

Alejandro (brooklyn, NY)

Fit
Quality
Installation
Recommend

CLEAN finish

Just tops off any bike to become better. I love it!!

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