ProX Piston Kit 48.46 mm for Kawasaki KX85 (01.4124.B)

The PROX Piston Kit, Part Number 01.4124.B, is designed as an OEM replacement for Kawasaki KX85 engines. Manufactured in Japan, this piston kit provides dependable fitment and consistent performance for motorcycle repairs, rebuilds, and routine engine maintenance. Its application-specific design helps restore proper piston function while supporting the reliability expected from a high-quality replacement component.
The piston is cast from a high-silicon-content aluminum alloy that meets or exceeds OEM specifications. This material is engineered to provide strength, durability, and reliable performance under demanding engine conditions. After casting, the piston is CNC-machined to extremely close tolerances to support accurate fitment and smooth operation within the cylinder.
This complete PROX kit includes the piston, piston ring kit, wrist pin, and circlips, providing the key components needed for installation. The 48.46 mm piston size is designed for compatibility with Kawasaki KX85 applications, making it a practical choice for professional technicians, powersports repair shops, and experienced motorcycle enthusiasts. Verify engine model and application requirements before installation.

Features:

• Manufactured in Japan for consistent quality and dependable performance

• OEM replacement design for Kawasaki KX85 applications

• Cast from high-silicon-content aluminum alloy

• Meets or exceeds OEM specifications

• CNC-machined to extremely close tolerances for accurate fitment

• Complete kit includes piston, ring kit, wrist pin, and circlips

• 48.46 mm piston size

• Brand: PROX

• Part Number: 01.4124.B

Ships from Parts Unlimited.