JE Pistons Piston Kit - 77.00 mm, 14.5:1 Compression Ratio for Yamaha (362954)

The JE Pistons 362954 Piston Kit is engineered for extreme applications, including professional competition and demanding high-performance Yamaha engines. Designed to support reliable power production under severe operating conditions, this kit combines precision manufacturing with durable materials for builders seeking consistent fitment and performance. The piston uses a 77.00 mm bore size and a 14.5:1 compression ratio for applications requiring increased compression and optimized combustion efficiency.
Constructed from 2618-T6 high-tensile forged aluminum, the piston provides the strength and durability needed for high-stress engine environments. The domed, dished, or flat-top design incorporates smooth-flowing radii, helping simplify installation by eliminating the need for deburring or additional preparation. This carefully finished construction supports dependable operation while maintaining the quality expected from JE Pistons components.
Each JE Pistons 362954 kit includes the piston or pistons, wrist pin, circlip, and piston rings unless otherwise noted. Components are packaged together to help streamline engine assembly and ensure the primary installation hardware is included. Verify engine application, compression requirements, bore specifications, and piston design before installation to confirm compatibility with your Yamaha build. Made in the USA.

Features:

• Brand: JE Pistons

• Part Number: 362954

• Application: Yamaha high-performance engines

• Bore Size: 77.00 mm

• Compression Ratio: 14.5:1

• Material: 2618-T6 high-tensile forged aluminum

• Piston Design: Domed, dished, or flat-top configuration with smooth-flowing radii

• Installation: Requires no deburring or additional preparation

• Kit Contents: Piston or pistons, wrist pin, circlip, and rings unless otherwise noted

• Origin: Made in the USA

Ships from Parts Unlimited.