Namura Hyperdryve High Compression Top End Kit - Honda TRX400EX 1999-2014
- Ships next business day
- 30-day hassle-free returns
- Call us: 541-668-7503
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✓ Fits
- Honda TRX400EX Sportrax 1999-2009
- Honda TRX400X 2012-2014
- Honda XR400R 1996-2004
✓ Features
- Top End kit includes: piston, rings, wrist pin, clips, top end bearing, and gasket kit
- MOS2 (Teflon/Molybdenum) Coated Skirts - A rolled on application process provides a bond that is 10 times stronger than other spray on coatings. Benefits include increased heat transfer, reduced friction and helping to eliminate cold seizures
- Machined Smooth Heads - Reflects combustion heat and reduces carbon buildup, protecting the top of the piston. Some tests have shown this feature can increase horsepower and fuel economy by up to 6%
- Anodized Domes - Increases heat resistance and durability; pistons with anodized domes are 75% stronger than non-anodized pistons
- Hypereutectic Casting Process - Provides higher silicon content for reduced expansion rates and additional wear resistance; it also has an ability to withstand higher cylinder temperatures
✓ What's Included
- (1) Namura Hyperdryve High Compression Top End Kit in the option you select
✓ Specs
- Brand: Namura
- Manufacturer part #: 85.47mm +0.50: NA-10003-2K, 85.97mm +1.00: NA-10003-4K, 86.47mm +1.50: NA-10003-6K
- Condition: New
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📦 Shipping Information
In-stock items ship next business day. ModQuad parts dispatch Monday through Thursday.
Made-to-order and custom powder coat items show their lead time at the top of this page, right next to the truck icon. These are built fresh for you, so timing varies by brand and current backlog.
Need something by a specific date? Call us at 541-668-7503 before ordering and we will check stock and ETA on that exact part. We can often point you to an in-stock alternative from another distributor.
Questions? Contact us, we respond within 24 hours.
