OEM PART NUMBERS:
• GM: 6260822
• GM: 3990993
• GM Casting Number: 3992077
SPECIFICATIONS:
• Type: Long Style Mechanical Water Pump
• Drive: Belt Driven
• Impeller Material: Metal
• Housing: Cast Iron
• Bearing: Heavy Duty
• Hub: 4-Bolt Pattern
• Gaskets: Included
• Weight: 14.9 lbs
• Package Dimensions: 14.0" x 10.0" x 10.0"
• Condition: New
APPLICATION:
• Chevrolet Corvette 454ci V8 7.4L (1971-1974)
• Big Block Chevy LS5/LS6 454 (1971-1974)
Engine Water Pump - Chevrolet Corvette C3 454 V8 1971-1974
Direct OEM replacement water pump for the 1971 through 1974 Chevrolet Corvette featuring the legendary 454 cubic inch (7.4L) Big Block V8 engine. This long-style mechanical water pump delivers reliable coolant circulation with its cast iron body and metal impeller design for consistent engine temperature management. Comes complete with mounting gaskets for hassle-free installation — no additional hardware or gaskets required for a full bolt-on replacement. Fits all 1971-1974 Corvette C3 454 applications including both the 7439cc and 7441cc displacement variants used across the model years. Direct replacement for General Motors 6260822 and 3990993 with casting number 3992077. The 454 Big Block Corvette represents the pinnacle of American muscle car engineering from this era, and this pump is built to match original equipment quality. Features a heavy-duty bearing and 4-bolt hub pattern matching the original equipment specifications for a precise, factory-quality installation. The belt-driven design provides consistent coolant flow at all engine speeds for optimal cooling.
⚠️ Verify OEM part number from your original unit before ordering to ensure proper fitment.
PRODUCT NOTICE:
As a parts distributor we mostly sell aftermarket parts (any OEM parts would be noted as such). Aftermarket parts are not sourced from the original vehicle or equipment manufacturer, but are designed to function the same as - if not better than - the original. All parts sold are new.
WARNING - This product may expose you to chemicals such as Nickel which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov
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