18-3160-1 Brass Sea Water Pump
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SIERRA18-3160-1 Brass Sea Water Pump


In stock online.
Model # 13480835 | Mfg # 18-3160-1UPC # 808282369668
18-3160-1 Brass Sea Water Pump


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18-3160-1 Brass Sea Water Pump

Name Value
Compatibility Mercruiser Stern Drive
Type Water Pumps

Product Overview

Improved replacement water pumps designed specifically for 2000 and newer MCM V6 and V8 engines

For 50 years Sierra has been producing parts engineered to meet or exceed the specifications of marine engine manufacturers and has gained the confidence of engine manufacturers and boat builders to a point of supplying them with OEM parts. Boaters and technicians can be assured a Sierra part will fit right the first time and restore function to OEM specifications.

The water pump is the heart of your engine’s cooling system. Each Sierra pump is matched to the specific engine block used for your engine. Mating surfaces are machined for out of the box installation without additional preparation and the pump body is powder coated for maximum corrosion protection. Sierra water pumps are made from new castings and are not remanufactured.

In recent years, Sierra has made improvements to this pump by using a vacuum impregnating process during the casting stages to prevent leaks. A circlip is included to eliminate movement of the pulley shaft if the pulley is not installed with proper tool. The proper pulley installation tool has been included to prevent damage to pulley shaft.

Key Features

  • Engineered to be an exact match to OEM pumps
  • Improved casting methods prevent possible leaks thorugh pump body
  • Powder coated finish to stand up to marine environment
  • Includes impeller (18-3016-1) and pulley tool for proper installation
  • Replaces MerCruiser p/n 46-862914A13
  • Backed by SeaStar Solutions Limited Two-Year Warranty

The Sierra Engine Parts Selector

In addition to water pumps, we offer a wide variety of other engine parts manufactured by Sierra. To see if we have the part you need, see our Engine Parts Selector, where you can search by engine make, serial number and model or year of manufacture.

Product Update


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