Quick Summary
This Sea Water Pump is a replacement pump with an original bronze impeller for Mercruiser 4.3L, 5.0L, and 5.7L applications. The opening details also tie it to 1963-2014 Mercruiser use, along with later Volvo Penta, OMC, Chrysler, Indmar, and Pleasurecraft small block cooling systems.
If you are comparing replacement pumps, the main checks are engine fitment, OE number match, and whether the included manual is enough for your installation needs. This pump is listed with multiple OE numbers and is meant for marine cooling system replacement work.
Key Details
| Detail | Product information and buyer relevance |
|---|---|
| Product type | Sea water pump replacement for marine cooling systems. |
| Impeller | Original bronze impeller, which is part of the product’s identity. |
| Engine fitment | 4.3L, 5.0L, and 5.7L Mercruiser fitment is named. |
| Additional fitment | Also named for 1963-2014 Mercruiser, 1973 and later Volvo Penta, and 1968-1998 OMC applications. |
| OE numbers | 8M0113734, 46-8M0113734, 17437, 60658, 811841, 850399. |
| Included item | Instruction manual is included. |
Compatibility, Size and Fit
This pump is a fitment-specific replacement part, so the main buying check is whether the engine or cooling system matches the named applications. The named fitment includes Mercruiser 4.3L, 5.0L, and 5.7L engines, plus the other listed marine and small block cooling system applications.
The OE numbers are especially useful for comparison when replacing an existing pump. If your current part carries one of those numbers, confirm the match before choosing an offer.
What Else You May Need
An installation manual is included, but the product does not state any other contents. If this is replacing an existing pump, confirm whether your application needs separate gaskets, hoses, or other installation parts.
Before You Decide
Confirm the exact engine fitment and OE number before choosing an offer. Check whether your application matches the named Mercruiser, Volvo Penta, or OMC coverage, and review the included manual against your installation needs.
Because this is a replacement pump for marine cooling systems, the exact fit matters more than visual similarity.
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