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Namura Technologies Top-End Repair Kits for 2007-2008 YFM400 GRIZZLY 4X4 AUTO, 2000-2006 YFM400F KODIAK 4X4 - NA-40008K
Part Number: NTI-NA-40008K
Namura Technologies Top-End Repair Kits
Repair Kit, Top End, 84.420mm Bore, 9.10 to 1 Compression Ratio, Yamaha, Kit
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Estimated Ship Date: Oct 26, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
NA-40008K
Part Type:
Product Line:
Summit Racing Part Number:
NTI-NA-40008K
Piston Material:
Hypereutectic aluminum
Bore (mm):
84.420mm
Stroke:
71.50mm
Wrist Pin Style:
Floating
Wrist Pin Retainers Included:
Yes
Top Ring Material:
Cast iron
Top Ring Facing Material:
Gas nitrided
Second Ring Material:
Cast iron
Second Ring Facing Material:
Cast iron
Oil Ring Material:
Stainless steel
Oil Ring Facing Material:
Nitride
File Fit:
No
Gapless:
No
Gaskets Included:
Yes
Quantity:
Sold as a kit.
Namura Technologies Top-End Repair Kits
Top-end rebuilds can help to improve the performance of your ride, and Namura Technologies top-end repair kits will keep your ATV, UTV, or off-road motorcycle running in peak condition! They include everything you need: pistons, top-end gasket kit, and wrist pin bearings (where applicable) in one convenient, time-saving package. Namura kits are available for a wide variety of makes and models, with specific bore and compression ratio parts to service your specific vehicle. Choose to do your rebuild with repair kits from Namura Technologies—the people who make pistons with attitude!
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