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Sierra 18-3392 Water Pump Kit

4.5 out of 5 stars 6 customer reviews

List Price: $66.99
Price: $44.75 & FREE Shipping on orders over $49. Details
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20 new from $44.75
$44.75 & FREE Shipping on orders over $49. Details In Stock. Ships from and sold by Amazon.com.

Frequently Bought Together

  • Sierra 18-3392 Water Pump Kit
  • +
  • Sierra 18-3673 Thermostat Kit
  • +
  • Sierra 18-7046 Carburetor Kit
Total price: $87.08
Buy the selected items together

Product Information

Technical Details

Brand Sierra International
Item Weight 1.5 pounds
Product Dimensions 5.8 x 5.4 x 5.3 inches
Origin Italy
Item model number 18-3392
Manufacturer Part Number 18-3392
OEM Part Number OMC 434421

Additional Information

ASIN B001449MH8
Customer Reviews
4.5 out of 5 stars 6 customer reviews

4.5 out of 5 stars
Best Sellers Rank #17,767 in Automotive (See top 100)
#12 in Automotive > Replacement Parts > Engine Cooling & Climate Control > Water Pumps
Shipping Weight 1.5 pounds (View shipping rates and policies)
Domestic Shipping This item is also available for shipping to select countries outside the U.S.
International Shipping This item can be shipped to select countries outside of the U.S. Learn More
Date First Available October 1, 2001

Warranty & Support

Warranty, Parts:Parts
Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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From the Manufacturer

Sierra, Marine, SeaStar, DIY, Repair, Warranty, High Quality, Best in Business, Marine Engine, OEM
Sierra, Marine, SeaStar, DIY, Repair, Warranty, High Quality, Best in Business, Marine Engine, OEM
Sierra, Marine, SeaStar, DIY, Repair, Warranty, High Quality, Best in Business, Marine Engine, OEM

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Customer Reviews

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Top Customer Reviews

Verified Purchase
It DOES have the plastic pump cover as shown in my picture, even though the picture in the ad doesn't show this. I ordered the Sierra 18-3392 from this exact site for my 1979 Johnson 85hp V4. Everything fit EXCEPT the impeller itself. It would not fit over the drive shaft with out resorting to a big hammer, (which I DIDN'T) and I could not use the impeller. I went to a local boating supply shop here in the Seattle area that sold these kits over the counter, and tried a second Sierra impeller of the same part number, and it had the exact same problem - too small to fit over the shaft. Frustrated, I went to a Johnson/Evinrude dealer and got an OEM impeller - not the entire kit. It fit perfectly and slid onto the shaft as it should. It was sufficiently snug, but it was not necessary to hammer it on like the Sierra parts would have required. I'm very disappointed that two different Sierra impellers didn't fit, and had to buy a Johnson/Evinrude impeller at a significantly higher price - $45 just for the impeller. I left the Sierra impeller with the dealer since they work the Sierra rep, and they will report my problem.

Some notes - I used emery paper to clean and smooth the shaft before trying to fit the Sierra impeller with no success. It was smooth and free of ridges, etc that would have prevented the Sierra impeller to slide on properly. Since I tried two of the same Sierra impellers and they both would not fit, and the OEM impeller fit perfectly, I can only conclude that the Sierra parts were not machined properly, and were a few thousands of an inch out of tolerance. The Johnson/Evinrude dealer mentioned that he has heard of other Sierra parts having tolerance problems, but didn't think it was a widespread problem across all their parts.
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Verified Purchase
I got this rebuild kit for a 1979 Johnson 150. It fit perfect after I figured out which parts were required. The only difficulty I faced was the lack of specific instructions. This kit fits multiple motors and I am pretty sure it contained all the parts to fit those motors. I had to decide which parts I needed and rebuild it by memory of disassembly. I put the wrong drive key in and had to disassemble the motor twice to figure out the problem. Once I figured it out, it worked perfect and have about 8 hours on it with no hiccups.
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Verified Purchase
This is a nice kit. It fit perfectly and seems to be of equal quality like the OEM pump kit except at a much better price.
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