PISTON KIT VERTEX 54 B YAMAHA YZ/WR 125 98-01, VERTEX 22549B
Vertex UK piston kit 22549B. All Vertex pistons feature standard pistons and components as OEM replacements. Kits include piston, rings, wrist pin, and circlips. All pistons are heat treated with a T-5 or T-6 hardening and tempering cycle. Replacement rings are sold individually. Made in Italy. Fitted in many OEM bikes as standard. Bore size 54.00 [B 53.94mm]. Replacement parts include rings 53010005400, pin 711127, and clips 72071. Cross reference numbers for piston (Std) are UR 4XM-11631-20-D0, 4XM-11631-30-D0, 4XM-11631-20-C0, 4XM-11631-30-C0, 4XM-11631-20-B0, 4XM-11631-30-B0, 4XM-11631-20-A0, 4XM-11631-30-A0. Cross reference numbers for Ring, Piston are 4JY-11611-00-00. Cross reference numbers for Pin, Piston are 4XM-11633-10-00. Cross reference numbers for Circlip are 93450-16068-00.
- SKU
- 22549B
- Brand
- Vertex
- Availability
- In Stock (1)
FULL DESCRIPTION
Vertex Piston Kit - 54mm Bore
This Vertex Piston Kit provides a high-quality replacement for your motorcycle's engine. Vertex pistons are engineered to meet or exceed OEM specifications, ensuring reliable performance and a perfect fit.
Key Features:
- OEM replacement standard piston kit.
- Includes piston, rings, wrist pin, and circlips for a complete installation.
- Pistons undergo a T-5 or T-6 hardening and tempering cycle for enhanced durability.
- Replacement rings are available for individual purchase.
- Proudly made in Italy.
- Often fitted as standard equipment on OEM motorcycles.
Specifications:
- Bore Size: 54.00mm (Designation B: 53.94mm)


