PUMP BOLT WASHERS (7)

The Coan Racing COA‑12157 Pump Bolt Washers (7‑piece kit) is a precision-engineered hardware set designed specifically for GM Powerglide transmissions. Tailored to fit the pump-to-case bolts of this unit, these washers ensure even load distribution and maintain proper torque retention, critical for sealing high-pressure hydraulic circuits.

Made from durable material and offered in a convenient seven-piece kit, they help prevent bolt loosening and fluid leakage, contributing to long-term hydraulic integrity. This economical yet essential kit is ideal for both routine rebuilds and performance-focused Powerglide builds, delivering reliable sealing and mechanical strength where it matters most