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1966 Restored Corvette Chevelle Impala Water Pump Big Block 3856284 J15 date GM1

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Original price
SKU 233580158405


Rebuild Services
A professionally restored water pump date coded correct for the following applications:

1966 Belair 396ci or 427ci
1966 Biscayne 396ci or 427ci
1966 Caprice 396ci or 427ci
1966 Chevelle 396ci
1966 Corvette 427ci
1966 El Camino 396ci
1966 Impala 396ci or 427ci
1966 Malibu 396ci



The quality of our rebuilds will speak for themselves, these water pumps have been through a meticulous process to make sure they meet or exceed industry standards. 
New bearings and seals were used to restore this to OE standards.

Note: A new pair of mounting gaskets will be sent with the pump

​The casting number is 3856284 GM 1 and the casting date is J15 (October 1, 1965) which is correct for a 1966 model year vehicle.

This pump was professionally rebuilt by a company with over 40 years experience & comes with gasket and a 90 day warranty against leaking.


This water pump has a refundable $100 core charge and we will provide shipping label 
Upon receipt of your Original 3856284 casting water pump we will refund you $100 

Hart Bros Core sells and rebuilds automotive water pumps