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Sierra 18-0172 Camshaft Oil Seal for Mercury MerCruiser Marine Engines

Manufacturer

Part Number

118-0172
Sale Price

$11.69

2 left at this price

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Usually delivered within 2 days

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Sierra 18-0172 is a premium marine-grade camshaft oil seal designed for Mercury MerCruiser 4-cylinder engines. This precision-engineered seal mounts in the front cover assembly to prevent oil and water from mixing, ensuring reliable engine protection in harsh marine environments.

Specifications:

  • Shaft Size: 0.845 inches
  • Outside Diameter (O.D.): 1.500 inches
  • Width: 0.315 inches
  • Marine-grade construction resists corrosion
  • Meets or exceeds OEM specifications

Application:

  • Fits Mercury MerCruiser 224 cubic inch (3.7L) 4-cylinder engines
  • Compatible with 165, 170, 180, 190 HP models (Serial Number 6916779 and up)
  • Fits MerCruiser 470, 488, 3.7, and 3.7XL models (1983-1987)
  • Two seals required per application

OEM Cross-Reference: Replaces Mercury Marine 26-97530, Mercury Mariner 10525418

Sierra marine parts are machined to perfectly match OEM specifications and are backed by the SeaStar Solutions warranty, giving technicians and DIY mechanics confidence when making critical engine repairs.

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