EXTREME DUTY ALUMINUM PUMP ASSEMBLY

• Aluminum pump body
• Aluminum cover w/ wear plate
• Heat treated bolt-in stator
• Adjustable regulator
• Fits 1-1/8" shaft

The Coan Racing COA-22822A-AL Extreme Duty Aluminum Pump Assembly is a premium-level hydraulic upgrade crafted for Turbo Hydramatic 400 transmissions that demand high performance and durability. Machined in the USA, this kit features an aluminum pump body and cover w/ wear plate, to withstand aggressive fluid flow and resist long-term erosion. The assembly includes a heat-treated bolt-in stator for enhanced rigidity and an adjustable regulator that allows precise tuning of line pressure to match various power levels and driving conditions.

Designed for compatibility with a 1-1/8″ shaft, it delivers race-quality fluid dynamics while maintaining a seamless drop-in installation into stock cases, no modifications required. This combination of thoughtful engineering and rugged materials offers serious builders a race-ready solution that improves transmission efficiency, responsiveness, and longevity under extreme use.