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The Sierra 18-4573 is a replacement outer wear plate designed for use in marine water pump assemblies. Wear plates serve as a critical sealing surface within impeller pump housings, protecting the pump body and maintaining proper water flow pressure for effective engine cooling.
Sierra International is a leading manufacturer of aftermarket marine parts, engineered to meet or exceed OEM specifications for durability and fit. This outer wear plate is precision-manufactured to ensure correct impeller clearance, helping to maximize pump efficiency and extend the service life of the overall pump assembly.
Key Features:
Regular inspection and replacement of wear plates as part of routine water pump service helps prevent overheating and ensures reliable engine cooling. The Sierra 18-4573 is an ideal choice for mechanics and boat owners performing water pump maintenance or rebuilds.
They have everything I was looking for all in one place!
Mason J Cartwright
Easy to find what I need. Price is competitive.
Bruce Wahler
Very easy, we'll see when it arrives. GOD bless
Steve Kimberley
Simple process. Best price I found.
Michael M
So far, so good.
Neil H
Good
Luis
A few back and forth pages to get it right
Tom Burnett
After a almost 2 month backorder through Summit... y'all had what I needed in stock and shipped same day! Which was delivered in 3 days! Awesome!
Jason Sparks
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