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Sierra 18-3417 Water Pump Base for MerCruiser MC-I & R Sterndrive

Manufacturer

Picture for manufacturer Sierra

Part Number

18-3417
13 reviews
Sale Price

$31.41

2 left at this price

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Usually delivered within 2 days

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Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Sierra 18-3417 is a replacement water pump lower base designed for MerCruiser MC-I and R sterndrive units without a flush screw in the housing, covering drive serial numbers 2763442 through 6854392 (1970–1984). It is a direct OEM-equivalent replacement for Mercury Marine part number 46-57234A1, engineered to meet or exceed the original equipment specifications it replaces.

Key Features:

  • Direct replacement water pump lower base (base only — upper housing sold separately)
  • Supplied with driveshaft seals included
  • No gaskets included — order separately as needed
  • Meets or exceeds OEM quality standards
  • Designed for MerCruiser MC-I & R drives without flush screw in housing

OEM & Cross-Reference Part Numbers:

  • Mercury Marine: 46-57234A1
  • GLM: 12310
  • Mallory: 9-43306
  • Pro Marine: 65600
  • Redline: RL3417

Note: Models that have been retrofitted with an Alpha-style drive (no preload pin on top of driveshaft) must use Sierra part number 18-3420 instead. This base is also a component included in the Sierra 18-3317 complete water pump kit for pre-Alpha MerCruiser drives.

A+shipping was quick, communications were quick

Happy Halloween

Perfect!

Very easy and quick ordering process

Thank you

Thanks

Awsome service and prices,Thanks alot

Good price and sound nice on my buddy's truck

Simple to purchase from you using paypal

Good Price, easy online browsing.

Excellent products, fast shipping, everything your looking for, great place to shop for parts and accessories.

Quick ordering process.

Amazing Prices, saved hundreds over other Performance websites. Fast Shipping to top it off! Even with having to pay for shipping I saved $160 using Autoplicity over another "racing" website. Will absolutely do business with again!

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