Namura NX-90003-BK Top End Rebuild Kit for Husqvarna, +0.01 in

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

The Namura NX-90003-BK Top End Rebuild Kit is designed for select Husqvarna powersports applications requiring a reliable top-end rebuild solution. This kit includes a precision oversize piston sized at +0.01 inch, making it suitable for engines prepared to accept the corresponding bore increase. Verify engine specifications and service requirements before installation to ensure proper compatibility.
The kit is intended to support piston replacement during engine rebuilding, helping restore compression and dependable performance when installed with correctly prepared cylinder components. Namura manufactures replacement engine parts for powersports applications, with attention to fit, durability, and consistent operation. Always follow the manufacturer’s service manual for inspection, clearance measurements, torque specifications, break-in procedures, and installation requirements.
Designed for professional technicians and experienced powersports builders, the Namura NX-90003-BK provides a practical replacement option for select Husqvarna top-end applications. Confirm the exact motorcycle or engine model, year, bore specification, and required oversize before ordering. The supplied configuration is identified as a kit and is intended for installation as part of a complete top-end service.

Features:

• Brand: Namura

• Part Number: NX-90003-BK

• Application: Select Husqvarna powersports engines

• Kit Type: Top end rebuild kit

• Piston Size: +0.01 inch oversize

• Installation: Follow the applicable factory service manual and verify clearances before assembly