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Sierra 18-3346 Water Pump Impeller Cup & Plate Assembly for Johnson/Evinrude Outboards

Manufacturer

Picture for manufacturer Sierra

Part Number

18-3346
12 reviews
Sale Price

$16.52

In Stock (7)

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Usually delivered within 2 days

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Fitment guaranteed

Fitment guaranteed

Product Details

The Sierra 18-3346 Water Pump Impeller Cup & Plate Assembly is a precision-engineered replacement component for the water pump lower unit on Johnson/Evinrude (OMC) outboard motors. This cup and plate assembly works in conjunction with the water pump impeller to maintain proper water circulation through the engine's cooling system, helping prevent overheating and protecting against costly engine damage.

Key Features:

  • Durable, non-corrosive construction built to withstand harsh marine environments
  • Meets or exceeds OEM specifications for reliable, long-lasting performance
  • Direct replacement for Johnson/Evinrude (OMC) outboard water pump systems
  • Hard-wearing materials engineered for marine cooling system demands

OEM Cross References:

  • Johnson/Evinrude (OMC): 435027
  • GLM: 12880
  • Mallory: 9-43505
  • Sierra alternate references: SIE 3346, 01-1765

The Sierra 18-3346 cup and plate assembly is a common service component found in multiple Sierra water pump kits for OMC applications. Sierra has a long-standing history as a leading manufacturer of aftermarket marine engine and drive parts, supplying OEM engine manufacturers and boat builders with quality components every day.

All good

As always, Autoplicity is amazing to deal with! Prices are excellent, and availability is great!

So far so good...Hopefully its truly a MASTER Lock! Thanks.

Easy process

easy, smooth transaction. Reasonably priced item. I was hesitant when reading some negative reviews, but took a chance anyway. I'm glad that I did. Item quickly received; no problems. Will buy from again.

I bought shocks for my Silverado. Very little product info given, I had to search part numbers on other websites to verify what shocks were for the front and what ones were for the rear. Also I would very much like to be able to ship to a different addres

efficient.

Quick and easy

quick and easy

Fast shipping, great price, product was somewhat hard to install but got it done, love the outcome of it. Overall happy.

I sell hi performance part for south america, and searching online I found this site ...THE BEST PRICE ONLINE PERIOD... I you don't believe, tries yourself. You can compare with the two biggest hi performance dealers in the usa.

Lowest price by far....thanks autoplicity

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