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Sierra 18-4531 Water Pump Repair Kit Without Housing for Mercury Outboards

Manufacturer

Sierra

Picture for manufacturer Sierra

Part Number

18-4531
7 reviews
03/13/2036 1:20 AM
Sale Price

$40.56

In Stock (9)

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Usually delivered within 2 days

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Product Details

The Sierra 18-4531 is a complete water pump rebuild kit designed for Mercury and Mariner outboard engines. This comprehensive repair kit contains all the essential components needed to service your water pump without replacing the entire housing assembly, making it a cost-effective maintenance solution.

Kit Includes:

  • Impeller (Sierra 18-3057)
  • Short seal 1 3/4"
  • Long seal 2 1/4"
  • Upper water pump gasket
  • Lower water pump gasket
  • Wear plate
  • Washers (2)

Compatibility:

  • Mercury 25 HP (4-Stroke)
  • Mercury 30 HP (2 Cylinder and 4-Stroke)
  • Mercury 40 HP (2 Cylinder, 3 Cylinder, and 4-Stroke)
  • Mercury 50 HP (3 Cylinder, 4-Stroke, and Bigfoot 4-Stroke)

This kit replaces Mercury OEM part numbers 821354A1 and 821354A2. Regular water pump maintenance is critical for preventing engine overheating and ensuring reliable performance on the water.

Quick, easy, plenty of options

Good prices

Shipping higher than others, but paid extra for reputability!

FINE SO FAR

So far process has been very easy.

Good

Very fast shipping, lowest prices on the web.

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