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Water Pump Impeller Repair Kit for Evinrude Johnson 40HP 45HP 48HP 50HP
Water Pump Impeller Repair Kit for Evinrude Johnson 40HP 45HP 48HP 50HP
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Product Overview
This water pump impeller repair kit is designed as a replacement cooling system service part for compatible Evinrude and Johnson 40HP, 45HP, 48HP, and 50HP outboard motors.
It replaces part numbers 438592, 433548, and 433549. The water pump impeller helps circulate cooling water through the outboard motor to maintain proper engine temperature during marine use. A worn, cracked, or damaged impeller may cause weak water flow, overheating, poor cooling performance, or possible engine damage.
This repair kit is suitable for routine outboard cooling system maintenance or replacing worn water pump components. Please compare the part number, impeller length, inner diameter, shape, and product photos with your original part before ordering.
Product Compatibility
| Compatible Brand / Model | Application |
|---|---|
| Evinrude Outboard | 40HP / 45HP / 48HP / 50HP water pump repair |
| Johnson Outboard | 40HP / 45HP / 48HP / 50HP water pump repair |
| Replacement Part Numbers | 438592 / 433548 / 433549 |
| Marine Outboard Motor | Cooling water pump maintenance and repair |
⚠️ Please confirm your original part number and impeller dimensions before purchase.
Specifications
| Item | Details |
| Product Type | Water Pump Impeller Repair Kit |
| Compatible Brands | Evinrude / Johnson |
| Compatible Horsepower | 40HP / 45HP / 48HP / 50HP |
| Replacement Part Numbers | 438592 / 433548 / 433549 |
| Impeller Length | 78.3mm / 3.08" |
| Impeller Inner Diameter | 18.7mm / 0.74" |
| Application | Outboard cooling water pump repair |
| Condition | 100% Brand New |
Key Features
- Water pump impeller repair kit for compatible Evinrude and Johnson outboards
- Fits selected 40HP, 45HP, 48HP, and 50HP applications
- Replaces 438592, 433548, and 433549
- Helps restore cooling water flow and reduce overheating risk
- Suitable for routine marine outboard cooling system maintenance
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Fitment FAQ
Will this part fit my specific model and year?
This water pump impeller repair kit may fit compatible Evinrude and Johnson 40HP, 45HP, 48HP, and 50HP outboard motors using part numbers 438592, 433548, or 433549. Fitment depends on the original part number, impeller length, inner diameter, water pump housing, and product shape rather than horsepower alone.
Do I need to match the OEM part number?
Yes. For this water pump impeller repair kit, matching the part number is strongly recommended. Please confirm your original part number matches 438592, 433548, or 433549 before ordering.
What models or situations does this part not fit?
This kit may not fit outboard motors with a different water pump housing, different impeller length, different inner diameter, different gasket shape, or a different service part number. It is not recommended for Mercury, Yamaha-style, Suzuki-style, or other non-Evinrude / Johnson applications unless the part number and design match exactly.
What should I check before ordering?
Before ordering, check your outboard brand, horsepower, original part number, impeller length, impeller inner diameter, housing design, gasket shape, and product photos. Make sure your original water pump components match this 438592 / 433548 / 433549 repair kit.