Price: $32.34
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Part # 18-7852-1
2nd Day Air for $2.99 More Eligible
SHIPS TOMORROW!* if ordered in 21 hrs 30 mins.
Price: $6.99
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Part # 18-7845
2nd Day Air for $2.99 More Eligible
SHIPS TOMORROW!* if ordered in 21 hrs 30 mins.
Price: $26.99
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Part # 18-7853-1
2nd Day Air for $2.99 More Eligible
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Price: $1.89
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Part # 18-4256
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Mallory Filter, Fuel Water Seperator Kit 9-37851
Price: $25.98
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Part # 9-37851
2nd Day Air for $2.99 More Eligible
SHIPS TOMORROW!* if ordered in 21 hrs 30 mins.
Price: $6.99
Save: $1.62
(18% Off $8.61)
Part # 9-37801
2nd Day Air for $2.99 More Eligible
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Sierra
Average Customer Review for Sierra 18-7852-1 Fuel Water Separator Kit
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Based On 3 Reviews | Write Review
Full StarFull StarFull StarFull StarFull Star
Perfect for 98 Mercruiser 3.0
by James from Haverhill, Massachusetts on August 17, 2012
Performs as advertised, same form, fit, function as higher priced OEM offering.
(6 of 7 people found this review helpful)
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As described
by Brian from Export, Pennsylvania on May 12, 2012
Easy to mount and set up. multiple mounting options makes it easy to find a good spot for any set up.
(5 of 6 people found this review helpful)
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Review for Sierra 18-7852-1 Fuel Water Separator Kit
by a Customer on June 23, 2009
Nice kit easy to install and has several choices on how to run your fuel lines....
(31 of 35 people found this review helpful)
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Based On 12 Reviews | Write Review
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Fuel Water Separator filter
by Trevor from Otonabee, Ontario on June 25, 2017
Product was correct and shipped in a timely fashion. Very satisfied with the service.
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filter
by Howard from Westport, Massachusetts on March 02, 2017
always happy with sierra quality
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Great product.
by Steven from Blountstown, Florida on November 29, 2016
Easily installed.
(1 of 2 people found this review helpful)
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Absolute must for all marine engines
by Rene from Wilsonville, Oregon on August 08, 2016
Works great, no fuel issues since I began using these.
(1 of 2 people found this review helpful)
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Fuel Water Seperator
by James from Chesapeake, Virginia on July 25, 2016
Very pleased. Fast shipping.
(1 of 2 people found this review helpful)
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Full StarFull StarFull StarFull StarFull Star
Sierra 18-7845 filter
by Thomas from Bemidji, Minnesota on June 18, 2016
Iboats had the best online price for this filter. They also have shipping rates that are lower than most other online retailers of boating accessories. Great company to deal with.
(1 of 2 people found this review helpful)
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A+
by Gene from Trempealeau, Wisconsin on July 15, 2015
Fits and works great
(1 of 2 people found this review helpful)
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Fits my factory Mercruiser fuel filter header
by Jim from Tolono, Illinois on September 15, 2013
Nothing else to say. Fits. Seems to work. Cheap.
(1 of 2 people found this review helpful)
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good product
by Peter from Flushing, New York on June 15, 2013
satisfied
(1 of 3 people found this review helpful)
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Full StarEmpty StarEmpty StarEmpty StarEmpty Star
21 Micron filter
by Emmett from Pearland, Texas on April 26, 2013
This is labeled as a replacement for the Mercury 35-802893Q, but when received the specs reflect it is a 21 Micron filter! NOT the 10 Micron filer I need. I had looked for the specs on-line before ordering and they were not listed. The 10 Micron P/N is 18-7945 according to the West Marine website.
(2 of 6 people found this review helpful)
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Full StarFull StarFull StarFull StarFull Star
water filter
by James from Texas City, Texas on April 16, 2012
i have always had a great experience dealing with i-boats and have always gotten quality products for a low price and these water filters for my boat are no exception. great filter for a great price !!!!
(3 of 9 people found this review helpful)
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Filters
by Giuseppe from Hillsborough, New Jersey on August 15, 2011
Great service
(2 of 8 people found this review helpful)
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Full StarFull StarFull StarHalf StarEmpty Star
Based On 3 Reviews | Write Review
Full StarEmpty StarEmpty StarEmpty StarEmpty Star
Product not received.
by Dave from Seattle, Washington on June 08, 2017
Paid for but never received. It has been over two weeks. No explanation.
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Great product!
by Michael from Noblesville, Indiana on October 07, 2013
I like the fact that the hose barbs came with the kit and that the filter was shrink wrapped to protect it. Installation was a breeze. One note for other installers: pre-fill the filter with gas before you screw it onto the housing it will make start up much easier.
(10 of 11 people found this review helpful)
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Full StarFull StarFull StarFull StarFull Star
Great Product
by Stephen from Hubert, North Carolina on July 04, 2013
If you do not already have one of these installed on your boat, you should waste no time getting one soon! The one I received did not have the two plugs for the unused ports. Luckily I already had some so installing it wasn't a problem.
(7 of 8 people found this review helpful)
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Based On 4 Reviews | Write Review
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Works as expected, every time
by Charles from Bethesda, Maryland on December 07, 2017
Wouldn't use any other separating filter.
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Great product
by Charles from Bethesda, Maryland on November 08, 2017
Worked as expected. Don't forget to fill the filter with fuel if you don't have a "primer" bulb... before installation
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Exact replacement. Fast shipping.
by Charles from Bethesda, Maryland on May 04, 2017
Product works as advertised.
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Good Price
by Raymond from Belvidere, New Jersey on May 27, 2011
it is what I odered but have not used it yet
(2 of 8 people found this review helpful)
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Q:
How can I determine if I need to replace my fuel/water separating filter for a 4.2L 1989 MerCruiser with 1/4" outlet?
A:
It needs to be changed every 50 hours or once a year.


Q:
Does this come with filter too? 18-79910 sierra?
A:
Yes it includes the filter as well.


Q:
Is this the correct filter for my 2001 F80z outboard?
A:
If you want to just replace your current one, we will need a part number off the filter.


Q:
Does this fit a 2001 115hp yamaha?
A:
This is not called for your motor. We can only cross reference by OEM number for Yamaha. Most are universal it will just depend on some specs that should be recommended by a technician (micron rating and such).


Q:
Will this fit my vx225 TLRA Yamaha?
A:
We will need to know the part number to your current separator filter to cross reference. Yamaha doesn't list it in the original parts list.


Q:
My fule lines are 3/8 id, will this filter work for me ?
A:
Sierra cannot match it up by measurements. They can only match it up by engine application. Contact us at the number at the top of the page for more assistance.


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