This product has been discontinued.
Sierra
Sierra 18-3007 Water Pump Impellers
Price: $14.95
Discontinued
Save: $5.54
(27% Off $20.49)
Part # 18-3007
(Discontinued)
This item is found in the following Product Families
Replaces OEM part #
  • MERCURY MARINE 47-89983T
  • MERCURY MARINE 47-89983
  • MERCURY MARINE 47-65959
  • MERCURY MARINE 47-20268
Average Customer Review for Sierra 18-3007 Water Pump Impellers
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Based On 17 Reviews | Write Review
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New impellor.
by Stephen from Knoxville, Tennessee on January 11, 2021
The new impellor works great. The tell-tale sprays water at high speed and pressure.
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new impeller is good!
by John from Siler City, North Carolina on October 05, 2018
The new impeller went in smoothly, BUT, it drags some,,,,,,which may be normal/ok, I just haven't asked on the forum yet.
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As expected
by Michael from Coldwater, Ohio on September 05, 2017
Ordered as a spare, shipped quickly
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Good product
by Jason from Colfax, Illinois on August 27, 2016
Works great - easy installation.
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Perfect fit!
by Mykal from Sweet Home, Oregon on July 29, 2015
Excellent quality component. Exact match to what I pulled out of my old impeller. My boat runs wonderfully with that. Stream of water flowing out the back.
(0 of 1 people found this review helpful)
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Water Pump Impeller for Mercruiser 47-89983T, Mercury/Mariner, GLM 89830 89480 - Sierra
by Glenn from South Bend, Indiana on July 30, 2014
Great Service!
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Water Pump Impeller
by Kevin from Oakbrook Terrace, Illinois on July 16, 2014
Simple and EZ to order on line. Fast shipping and the impeller is a perfect fit.
(2 of 3 people found this review helpful)
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Outstanding
by Bryan from American Fork, Utah on December 05, 2013
The product was less money and the shipment and the service was great I would recommend them to anybody
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mercury replacement impeller
by Jeremy from Marceline, Missouri on May 26, 2013
Seems to be OEM quality or better. Exact fit and great cooling now! Super fast shipping as always!!!
(4 of 4 people found this review helpful)
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18-3007
by Larry from Sooke, British Columbia on April 01, 2013
Very Good Product
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Thanks
by John from Niagara Falls, New York on September 08, 2012
great service, fast delivery
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poor
by Jesse from Rimrock, Arizona on July 16, 2012
Gave you the part number I needed, You sent the complete wrong impeller.
(1 of 2 people found this review helpful)
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impeller
by David from Jay, Florida on July 05, 2012
worked very well.
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Everthing good
by Allen from Vacaville, California on May 28, 2012
Everthing good
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Water Pump Impeller
by Ronald from Saint Charles, Missouri on January 17, 2012
Looks just like the Merucry impeller that I replaced.
(2 of 2 people found this review helpful)
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Good Deal
by Ray from Scottsdale, Arizona on December 11, 2011
Great price. Will be using iboats for future purchases
(1 of 1 people found this review helpful)
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great product
by Joseph from Tallahassee, Florida on November 27, 2011
could use some instructions to insure proper assembly
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Q:
I need an impeller for a 2004 50 hp EFI 4 stroke outboard. I can't find the matching part?
A:
We will need the engine gear ratio in order to match up the correct impeller. Let us know if you can provide that.


Q:
What are the dimension?
A:
There are not dimensions listed as it matches up by application. We will need to know that.


Q:
Will this fit a 1978 85 hp mariner outboard?
A:
No it will not. You need part number 18-3017.


Q:
I have a 2009 50hp mercury outboard. I need an impeller but the serial number I have does not match any that I see for that HP. My serial number is 1B7727470?
A:
The replacement impeller that pulls up for your Mercury engine is this one: http://www.iboats.com/Water-Pump-Impeller-18-3056-Sierra/dm/view_id.172244


Q:
Will this fit a 2004 bayliner boat 3.0 with alpha one stern drive serial no 0w541718?
A:
No, you need 18-3056: http://www.iboats.com/Water-Pump-Impeller-18-3056-Sierra/dm/view_id.172244


Q:
Is this the right impeller for my 1990 Malibu with 350 FordMerc 5.7L?
A:
This is a aftermarket part. We need your engine serial number to look up a diagram of your engine to see if this part matches up to the OEM part number for your engine. Please email, chat or call in with your FULL engine information including engine manufacturer, horse power, year and serial number.


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