Description: BOSS Water Pump Impeller
Model: 1969-70 BOSS 302 Mustang & Cougar, 1971 BOSS 351
Engine: BOSS 302, BOSS 351
Condition: New Reproduction
Material: Cast iron
Finish: Bare cast iron
Copy of Ford Performance Parts Number: M-8512-A302
Copy of Engineering Number: D0ZE-8512-A

Accuracy rating: 10 (dimensionally and performance)
Best Repro Available: YES

Jack's Comments: 

This is our new reproduction performance cast iron BOSS high performance water pump impeller. We copied the an original Ford production D0ZE-8512-A impeller down to every detail except for the faint casting numbers. High RPM balanced just like the Ford Motorsport version.

• Engineered to increase system pressure that reduces the onset of hot spots on cylinder walls and formation of steam pockets in the water jacket.
• Reduced cavitation at higher RPM's that can steal horsepower and cause increased water temperatures.
• Dynamically balanced just like the original Ford Motorsports impellers were balanced.

Install notes: 
We recommend having us or a qualified machine shop install this impeller. Always use safety shields and eye glasses when installing.

Also Fits:
1965 289, 289 HiPo (aluminum housing)
1965-67 289, 289 HiPo (cast iron housing)
1968 289/302/302HO
1968 Shelby GT350
1969 302 Std
1969 351W, GT350
1969 BOSS 302
1970 351W
1970-75 351C