Mercury Mariner Outboard Impeller Sierra 18-3057 Replaces 47-85089T 47-8M0024502
18-3057
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- 30 Day Return Policy
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Sierra 18-3057 Impeller
Premium Replacement for Mercury & Mariner Outboards
The Sierra 18-3057 Water Pump Impeller is a precision-engineered replacement component designed to restore the cooling efficiency of your Mercury or Mariner outboard engine. As the heart of your engine's cooling system, this impeller ensures consistent water flow to prevent overheating and maintain peak performance.
Key Features
- ✔ Direct OEM fitment replacement
- ✔ Corrosion-resistant brass hub
- ✔ High-strength neoprene 6-blade design
- ✔ Suitable for fresh and saltwater use
Technical Specs
| Number of Blades: | 6 |
| Outer Diameter: | 72.60 mm (2.86") |
| Internal Diameter: | 15.90 mm (0.63") |
| Thickness/Width: | 25.90 mm (1.02") |
| Drive Type: | Key Drive |
Compatibility / Fitment Guide
| Engine Type | Horsepower Range | Serial Range / Notes |
|---|---|---|
| Mercury / Mariner | 15 HP | USA: 0G760300+ | BEL: 0P017000+ |
| Mercury / Mariner | 20 HP | USA: 0G760300+ | BEL: 0P017000+ |
| Mercury / Mariner | 25 HP | USA: 0G760300+ | BEL: 0P017000+ |
| Chrysler / Force | Various 15-25 HP | Check OEM Reference below |
OEM Cross Reference
| Mercury Marine: | 47-85089, 47-850891, 47-850893, 47-8508910, 47-8508920, 47-8M0024502, 47-8M0027792 |
| Chrysler/Force: | 47-850893 |
| Mallory: | 9-45303, 9-45303-10 |
| GLM: | 89640 |
Questions & Answers
Is this a genuine original part?
This is a premium quality Sierra Marine aftermarket replacement part, engineered to meet or exceed original equipment (OE) standards for durability and fitment.
How do I know if it is compatible?
Please check the OEM Cross Reference list above. If your original part number matches any of those numbers, or if your engine horsepower and serial number fall within the listed ranges, this impeller is a guaranteed fit.
Is this impeller suitable for saltwater use?
Yes. It is manufactured using high-quality neoprene and includes a corrosion-resistant brass hub, making it suitable for both freshwater and saltwater environments.
Note: Please verify your original part number against the references above before purchasing. Distributed by 4boats.co.uk.
For the products under £150 the shipping is £6.99.
Free delivery for most items over £150.
