18-3425 Water Pump Impeller Kit for Yamaha 25, 40, 50 HP C25, P50, Pro50 2-Stroke | SeaSierra
18-3425 Water Pump Impeller Kit for Yamaha 25, 40, 50 HP C25, P50, Pro50 2-Stroke | SeaSierra is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
Orders are typically processed within 1–2 business days.
U.S. orders usually arrive within 6–15 days, depending on stock location and destination.
International delivery times may vary due to customs processing.
Tracking information will be provided once your order ships.
Product Details
- SKU: 183425
- Brand & Manufacturer: SeaSierraCategory: Outboard Motor Parts
- Part Type: Water Pump Impeller Repair Kit
- Item Weight: 0.47
- Package Dimensions: 4.9 x 4.6 x 2.6 inches
Compatibility
This kit is compatible with the following Yamaha Two Stroke Outboard models:
- 25 HP (International Model 25Q): 1990-1994
- 40 HP: 1984-1995 (International: 1984-1995)
- 50 HP: 1984-1987, Pro Series 50: 1987-1990, P50: 1995-1996 (International: 1984-1994)
Part Numbers and Replacements
-
Replaces OEM Part Numbers:
- 6H4-W0078-A0-00
- 6H4-W0078-01-00
- 6H4-W0078-00-00
-
Replaces Sierra Part Numbers:
- 18-3429
- 18-3408
- GLM Part Number: 12064, 12287
- SEI Marine Part Numbers: 96-499-01CK, 96-499-02CK
- Other Replaced Part Numbers: 663-W0078-00-00, 663-W0078-A0-00, Mercury Marine: 84188M, 84188T
Kit Components
The package includes the following items:
- Impeller (6H4-44352-02/00, 18-3068) - Suitable for engines with 25, 40, 50 HP
- Cartridge Outer Plate (663-44323-00, 18-3436)
- Insert Cup (663-44324-00, 18-3435)
- Gaskets (663-44315-00, 663-44324-00, 663-44316-00)
- Water Seal
- Key, Woodruff
- 4 x Bolts
Additional Information
- Other Part Numbers: Bolt (NSS, 18-0256), Gasket, Water Pump (18-0292, 18-0294), Impeller (18-3069), Impeller Key (18-3297), Wear Plate (18-3436), Water Seal Damper (18-1830)
Payment & Security
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