







💦 Keep your outboard engine cool and cruising—don’t get left high and dry!
This Water Pump Impeller Kit is a precision-engineered replacement for Mercury Marine 821354A1/A2 and Sierra 18-4531 parts, designed to fit 25-50HP 2 & 4-stroke Mercury, Mariner, and Force outboard engines from 1998 onward. Featuring a durable stainless steel wear plate, nylon PA66 components, and a neoprene impeller, it ensures efficient cooling and long-lasting performance. The kit includes all necessary seals and washers for a complete, easy installation, making it an essential upgrade for maintaining optimal engine health.








| Brand | GHmarine |
| Material | Neoprene, Nylon PA66, Stainless |
| Item Weight | 150 Grams |
| Vehicle Service Type | 50 hp |
| Weight Class | light weight |
| Manufacturer | GHHG |
| OEM Part Number | 821354A1, 821354A2 |
| Automotive Fit Type | Vehicle Specific Fit |
| UPC | 754083697472 |
| Model | Water Pump Impeller Kit |
| Item Weight | 5.3 ounces |
| Package Dimensions | 5.98 x 4.09 x 2.05 inches |
| Item model number | 821354a2 |
| Exterior | Polished |
| Manufacturer Part Number | 821354A2 |
| Special Features | Cooling Force outboard engine, Cooling Mariner outboard engine, Cooling mercury outboard engine |
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