Description
SIERRA Double Lip Water Pump Seal – 18-3289
The SIERRA Double Lip Water Pump Seal – 18-3289 is a replacement cooling-system seal for the specified marine water-pump application. Correct sealing at the pump housing is essential to prevent leakage and maintain reliable pump operation.
- Replacement double-lip seal for the specified water-pump housing
- Matches the listed OEM reference for application identification
- Supports proper separation and sealing within the pump assembly
- Appropriate for water-pump overhaul or leak correction
- Verify dimensions and OEM number before installation
Inspect the shaft and seal bore before fitting the new seal. A grooved shaft, corrosion or damage to the housing bore can cause premature leakage even with a new sealing element.
Specifications
- Manufacturer: SIERRA
- Part Number: 18-3289
- Product Type: Double Lip Water Pump Seal
- Applications: MerCruiser Alpha One Generation II upper water-pump housing applications using OEM 26-864319
- Outside diameter: 1.38 in.
- Inside diameter: 0.84 in.
- Height: 0.375 in.
- Double-lip sealing profile
- OEM / Aftermarket Interchange:
- Mercruiser Stern Drive: 26-864319
- Country of Origin: TW
- HS Code: 40169399
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