Marine Circulating Water Pump #850454R1 for GM 7.4L and 8.2L Engines
This marine circulating water pump is identified by reference number 850454R1 and is intended for GM 7.4L and 8.2L 454 and 502 engines. In a marine cooling system, a circulating pump moves coolant through the engine block, heads, and heat exchanger circuit to help regulate operating temperature. This is an aftermarket replacement part rather than a genuine GM component.
Product Details
Product Type: Marine circulating water pump
Reference Number: 850454R1
Engine Compatibility: GM 7.4L and 8.2L
Engine Designation: 454 and 502
Brand Reference: SIERRA
Fitment & Compatibility
For GM 7.4L and 8.2L 454 and 502 SIERRA engines
Frequently Asked Questions
Q: What does a marine circulating water pump do? A: It circulates coolant through the engine and cooling system so heat can be carried away and operating temperature can be managed.
Q: How do I confirm this pump matches my engine? A: Check the reference number 850454R1 and verify your engine is a GM 7.4L or 8.2L 454 or 502 before ordering. Also compare the mounting and pulley arrangement to your existing pump.
This is an aftermarket replacement part. Confirm fitment before purchase.
