For MerCruiser Bravo 454 502 8.2L 7.4L 46-807151A8 Raw Sea Water Pump Assembly

Raw Sea Water Pump Assembly for MerCruiser Bravo 454 502 8.2L 7.4L

This raw sea water pump assembly is a replacement pump for MerCruiser Bravo stern drive applications running 454, 502, 7.4L, and 8.2L engines, cross-referencing part number 46-807151A8, and it moves raw cooling water through the engine to control operating temperature on the water.

Overview

This raw sea water pump assembly keeps MerCruiser Bravo 454, 502, 7.4L, and 8.2L engines supplied with cooling water. The pump draws raw water from the drive and pushes it through the cooling system so temperatures stay in range at idle and under load. It fits owners replacing a worn or leaking sea water pump on a Bravo-equipped boat.

Built For Performance

• Raw sea water pump assembly for MerCruiser Bravo applications
• OEM cross-reference 46-807151A8 for accurate parts matching
• Marine-grade housing and internals built for continuous raw water service
• Impeller-driven design moves volume needed for large-displacement big blocks
• Sealed bearing arrangement handles constant belt-driven rotation
• Direct replacement footprint for the original pump location

Fits These Machines

• for MerCruiser Bravo with 454 engine
• for MerCruiser Bravo with 502 engine
• for MerCruiser Bravo with 7.4L engine
• for MerCruiser Bravo with 8.2L engine

On-The-Job Use

• Routine cooling system service on Bravo stern drive boats
• Replacing a pump that leaks, squeals, or stops moving water
• Big block repower and rebuild projects needing a fresh pump
• Marina and shop repair work on 7.4L and 8.2L powerplants
• Pre-season maintenance before launching for the season

Specs At A Glance

Good To Know

Q: How do I know when this raw sea water pump needs replacing? A: Common signs are leaking at the weep hole, a slipping or shredded impeller, or engine temperatures climbing above normal. Inspect the impeller and housing any time the boat sits unused for a long stretch.

Q: Should the impeller be replaced at the same time as the pump? A: Replacing the impeller during a pump install is standard practice since a worn impeller can fail and starve the engine of cooling water. Check the housing and wear plate for scoring while the pump is off.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.