PISTON KIT 77.00mm 2014-2015 YZF250 NAMURA FORGED FX-40037-C
Namura Technologies forged piston kit FX-40037-C is a complete forged piston assembly for 250cc off-road engines. It is intended for top-end servicing in standard 77mm class applications. This kit is supplied with matched rings and installation hardware. Features include a forged piston kit for off-road engine rebuilds, piston, OEM-quality piston rings, wrist pin, and circlips. Specifications include a size of 77mm, piston diameter of 77.00mm, bore size of 76.97mm, oversize of +0.02mm (Size C), and a compression ratio of 13.5:1 (high compression). Cross-reference OEM part numbers include FX-40037-C, NX-20030R, 56-W4961.C.NT, 0758891090371, and 1SM-11631-01-00.
- SKU
- 56-W4961.C.NT
- Brand
- Namura Technologies
- Availability
- In Stock (9)
FULL DESCRIPTION
Namura Forged Piston Kit 77.00mm
This Namura Technologies forged piston kit is designed for top-end servicing of 250cc Yamaha off-road 250F engines. It is intended for standard 77mm bore applications and provides a complete forged piston assembly. This kit is supplied with all necessary components for installation, ensuring a comprehensive rebuild solution.
Key Features:
- Forged piston kit ideal for off-road engine rebuilds
- Includes a high-quality forged piston
- Comes with a complete set of OEM-quality piston rings
- Supplied with the necessary wrist pin for assembly
- Circlips are included for secure installation
Specifications:
- Piston Diameter: 77.00mm
- Bore Size: 76.97mm
- Oversize: +0.02mm (Size C)
- Compression Ratio: 13.5:1 (High Compression)
Cross-Reference Part Numbers:
- FX-40037-C
- NX-20030R
- 1SM-11631-01-00


