SIERRA Double Lip Water Pump Seal – 18-3289

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