PROX 31.4355 Cam Chain for Kawasaki KX250F and KX250X

The PROX 31.4355 Cam Chain is a precision-engineered replacement timing chain for select Kawasaki motocross and cross-country motorcycles. Manufactured in Japan by BorgWarner, this cam chain is designed to meet original equipment manufacturer specifications for dependable fit, consistent timing, and long service life. Its construction makes it a suitable choice for restoring reliable valve-train performance during engine maintenance or rebuilds.

Featuring a strong M-Type chain design, the PROX cam chain uses a specially heat-treated pin along with advanced pin and link connections. These features help provide the strength, durability, and wear resistance required for high-performance four-stroke applications. The chain is built to support accurate camshaft timing and dependable operation under demanding riding conditions.

Fitment includes the 2025 and 2026 Kawasaki KX250F and KX250X models. Verify the motorcycle model and application before installation to ensure compatibility. This PROX cam chain is supplied as a replacement component and is identified by manufacturer part number 31.4355 and vendor part number 31.4355.

Features:

• Manufactured in Japan by BorgWarner for dependable quality and performance
• Designed to meet original equipment manufacturer specifications
• Strong M-Type chain construction supports durability in demanding applications
• Specially heat-treated pin helps improve wear resistance and service life
• Advanced pin and link connections provide reliable strength and performance
• Fits 2025 and 2026 Kawasaki KX250F and KX250X models
• Brand: PROX
• Manufacturer part number: 31.4355
• Vendor part number: 31.4355