Brian Crower BC3890-2 Valve Lash Shim Kit for Polaris Pro R

The Brian Crower BC3890-2 Valve Lash Shim Kit is engineered specifically for the Polaris Pro R, providing precision valve lash adjustment during engine rebuilds and maintenance. These high-performance shims are essential for maintaining proper valve clearances and ensuring optimal engine performance.

Key Features:

• CNC machined from S7 tool steel for superior wear resistance and durability
• 9.48mm diameter shims designed for Polaris Pro R applications
• Complete range from 2.4mm to 2.85mm thickness in 0.05mm increments
• 10 pieces of each thickness included for comprehensive valve train service
• Precision tolerances ensure accurate valve lash adjustment
• Professional-grade quality from a trusted name in performance engine components

Brian Crower valve lash shims are manufactured to exacting standards, providing the precision needed for proper valve train setup. Whether performing a complete engine rebuild or routine valve adjustment, this comprehensive shim kit ensures you have the right thickness to achieve factory-specified valve clearances for optimal performance and reliability.