Price: $30.03
Save: $18.14
(37% Off $48.17)
Part # 18-7721
2nd Day Air for $2 More Eligible
Price: $6.88
Save: $2.36
(25% Off $9.24)
Part # 18-7784
2nd Day Air for $2 More Eligible
Price: $4.37
Save: $2.27
(34% Off $6.64)
Part # 18-7855
2nd Day Air for $2 More Eligible
Mercury Marine 35-53336 replacement parts
Price: $3.48
Save: $1.01
(22% Off $4.49)
Part # 18-7859
2nd Day Air for $2 More Eligible
Price: $6.33
Save: $3.30
(34% Off $9.63)
Part # 18-7860
2nd Day Air for $2 More Eligible
Price: $6.03
Save: $2.98
(33% Off $9.01)
Part # 18-7869
2nd Day Air for $2 More Eligible
Price: $115.27
Save: $27.67
(19% Off $142.94)
Part # 18-7873
2nd Day Air for $2 More Eligible
No Reviews
Price: $18.53
Save: $8.46
(31% Off $26.99)
Part # 18-7919
2nd Day Air for $2 More Eligible
Price: $34.60
Save: $15.39
(30% Off $49.99)
Part # 18-7977
2nd Day Air for $2 More Eligible
Price: $28.06
Save: $9.93
(26% Off $37.99)
Part # 18-7920
2nd Day Air for $2 More Eligible
Price: $7.99
Save: $1.75
(17% Off $9.74)
Part # 9-37821
2nd Day Air for $2 More Eligible
No Reviews
Mallory Fuel Filter 9-37820
Price: $6.99
Save: $1.84
(20% Off $8.83)
Part # 9-37820
2nd Day Air for $2 More Eligible
Price: $5.85
Save: $3.64
(38% Off $9.49)
Part # 18-7844
2nd Day Air for $2 More Eligible
Price: $7.98
Save: $2.40
(23% Off $10.38)
Part # 18-7856-1
2nd Day Air for $2 More Eligible
No Reviews
Price: $7.99
Save: $1.52
(15% Off $9.51)
Part # 18-7857-1
2nd Day Air for $2 More Eligible
Price: $7.88
Save: $4.61
(36% Off $12.49)
Part # 18-7846
2nd Day Air for $2 More Eligible
Price: $8.99
Save: $1.82
(16% Off $10.81)
Part # 9-37803
2nd Day Air for $2 More Eligible
Price: $10.72
Save: $2.11
(16% Off $12.83)
Part # 35-49088Q 2
2nd Day Air for $2 More Eligible
No Reviews
Price: $10.99
Save: $2.91
(20% Off $13.90)
Part # 9-37825
2nd Day Air for $2 More Eligible
No Reviews
Price: $26.99
Discontinued
Save: $17.85
(39% Off $44.84)
Part # 9-37826
2nd Day Air for $2 More Eligible
No Reviews
(Discontinued)
Price: $3.99
Save: $0.29
(6% Off $4.28)
Part # 9-37823
2nd Day Air for $2 More Eligible
No Reviews
Price: $36.99
Save: $10.52
(22% Off $47.51)
Part # 9-37827
No Reviews
Price: $41.07
Save: $6.85
(14% Off $47.92)
Part # 89876A3
No Reviews
Price: $62.79
Save: $10.46
(14% Off $73.25)
Part # 809096
2nd Day Air for $2 More Eligible
No Reviews
Price: $90.71
Save: $15.12
(14% Off $105.83)
Part # 864572A1
2nd Day Air for $2 More Eligible
No Reviews
Price: $44.21
Save: $7.37
(14% Off $51.58)
Part # 864572
No Reviews
Price: $22.07
Save: $3.68
(14% Off $25.75)
Part # 8M0079962
2nd Day Air for $2 More Eligible
No Reviews
Price: $41.79
Save: $6.96
(14% Off $48.75)
Part # 802893Q4
2nd Day Air for $2 More Eligible
No Reviews
Price: $9.29
Save: $3.71
(28% Off $13.00)
Part # 802893Q01
2nd Day Air for $2 More Eligible
No Reviews
Price: $11.36
Save: $1.89
(14% Off $13.25)
Part # 866594Q01
2nd Day Air for $2 More Eligible
No Reviews
Price: $10.14
Save: $4.06
(28% Off $14.20)
Part # 8M0061975
2nd Day Air for $2 More Eligible
No Reviews
Price: $33.86
Save: $5.64
(14% Off $39.50)
Part # 809101
No Reviews
Price: $6.71
Save: $2.69
(28% Off $9.40)
Part # 8M0046752
No Reviews
Price: $11.00
Save: $1.83
(14% Off $12.83)
Part # 49088Q2
No Reviews
Price: $5.71
Save: $2.29
(28% Off $8.00)
Part # 53336Q
No Reviews
Price: $8.86
Save: $3.54
(28% Off $12.40)
Part # 8767Q
Sierra
Average Customer Review for Fuel Pump Filter - 18-7784 - Sierra
Full StarFull StarFull StarFull StarFull Star
Based On 3 Reviews | Write Review
Full StarFull StarFull StarFull StarFull Star
merc. 224 cid/165 hp 4 cyl.
by Siah from Morehead, Kentucky on April 09, 2013
sierra products are top quality. this is an exact part match.
(1 of 1 people found this review helpful)
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Full StarFull StarFull StarFull StarFull Star
Easy installation.
by William from Cincinnati, Ohio on September 25, 2012
This filter was a little different than the original, but fit perfectly and works great.
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Full StarFull StarFull StarFull StarFull Star
Filter
by Wayne from Greenbrier, Arkansas on August 08, 2012
It fit.
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Average Customer Review for In-Line Fuel Filter - 18-7855 - Sierra
Full StarFull StarFull StarHalf StarEmpty Star
Based On 3 Reviews | Write Review
Full StarFull StarFull StarFull StarEmpty Star
In Carb filter
by H from Hagerstown, Maryland on April 13, 2012
Perfect fit, great shipping. Would have liked a diagram as to which end to insert into carb as this was replacing a different kind of filter.
(2 of 2 people found this review helpful)
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Full StarFull StarFull StarFull StarEmpty Star
filter
by John from Eagle River, Wisconsin on August 04, 2011
it was not the same type of filter that my boat had originally, but it seems to be working fine
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Full StarFull StarFull StarEmpty StarEmpty Star
good
by Pierre from Lancaster, Ontario on July 24, 2011
wrong size
(1 of 1 people found this review helpful)
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Average Customer Review for Fuel Filter - 18-7859 - Sierra
Full StarFull StarFull StarFull StarFull Star
Based On 1 Review | Write Review
Full StarFull StarFull StarFull StarFull Star
moth ball boat
by Michael from Dardenne Prairie, Missouri on September 06, 2011
very satisfied with this part and I needed to order a carburetor kit the next time. Thank you.
(2 of 5 people found this review helpful)
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Average Customer Review for Fuel Filter - 18-7860 - Sierra
Full StarFull StarFull StarFull StarFull Star
Based On 2 Reviews | Write Review
Full StarFull StarFull StarFull StarFull Star
Filter
by Tom from Douglasville, Georgia on March 20, 2014
Good filter thanks
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Full StarFull StarFull StarFull StarFull Star
Fuel Filter
by Jorge from Amsterdam, New York on July 28, 2012
Good Product.
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Average Customer Review for Fuel Filter Assembly - 18-7869 - Sierra
Full StarFull StarFull StarEmpty StarEmpty Star
Based On 3 Reviews | Write Review
Full StarEmpty StarEmpty StarEmpty StarEmpty Star
Washers too thin
by Seaby from Soperton, Georgia on September 17, 2013
The washers are too thin, much thinner than OEM. When I installed the unit I was unable to tighten the connectors enough to stop the gas from leaking. I had to reuse the old washers and the leak stopped.
(1 of 1 people found this review helpful)
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Full StarFull StarFull StarFull StarEmpty Star
filter
by Douglas from Dadeville, Alabama on July 22, 2013
As advertised, received quickly
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Full StarFull StarFull StarFull StarFull Star
Review for Sierra 18-7869 Fuel Filter Assembly
by a Customer on March 20, 2009
(1 of 5 people found this review helpful)
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Average Customer Review for Fuel Filter - 18-7919 - Sierra
Full StarFull StarFull StarFull StarFull Star
Based On 3 Reviews | Write Review
Full StarFull StarFull StarFull StarFull Star
Sierra Fuel Filter
by Thomas from Elverta, California on April 25, 2016
This works as it should based on the amount of 'stuff' in the filter housing bowl when I change it. Can't imagine the motors running very well without the filtering process. Don't leave dock without it, as Carl would have said.
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Full StarFull StarFull StarFull StarFull Star
Cost effective
by Rod from Blackwood, New Jersey on August 10, 2014
Compared to Racor filters, this Sierra gives you the same performance for a much better price.
(0 of 1 people found this review helpful)
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Full StarFull StarFull StarFull StarFull Star
Sierra Fuel/Water Separator
by Andrew from Pensacola, Florida on June 01, 2012
The products arrived prior to estimated delivery date and received in great condition. The only thing I did not find is the smaller washer that goes into the bottom of the bowl, other than that, I am very pleased that I purchased 2 of them. Buying 2 from iBoats.com was less expensive than purchasing one locally.
(1 of 3 people found this review helpful)
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Average Customer Review for Sierra 18-7977 Fuel Filter
Full StarFull StarFull StarFull StarEmpty Star
Based On 4 Reviews | Write Review
Full StarEmpty StarEmpty StarEmpty StarEmpty Star
Maybe bad batch?
by William from Mullica Hill, New Jersey on June 01, 2014
Bought two of these filters for my Mercruisers. Replaced my fuel filters like I do every year. Port engine stalled out after running for 10 minutes. Wound up pulling out filter to check and the bottom part where the paper goes in to the flange with the o-ring had come apart and glue was restricting the fuel flow. Had to go buy one local. 30 minutes later out in the bay the starboard engine died. Same thing. Over $100 down the drain.
(1 of 1 people found this review helpful)
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Full StarFull StarFull StarFull StarFull Star
fuel filter
by Ronald from York Haven, Pennsylvania on October 15, 2013
received quickly, not installed yet.
(0 of 1 people found this review helpful)
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Full StarFull StarFull StarFull StarFull Star
fuel filter
by Dave from Moss Point, Mississippi on September 22, 2013
Good quality and fast shipping.
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Full StarFull StarFull StarFull StarFull Star
fuel filter
by Jeffrey from Westmont, Illinois on June 02, 2011
Still too pricey for a paper filter, but much better than anywhere else I could find.Thanks iboats!!
(4 of 5 people found this review helpful)
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Full StarEmpty StarEmpty StarEmpty StarEmpty Star
Based On 1 Review | Write Review
Full StarEmpty StarEmpty StarEmpty StarEmpty Star
bad filters
by Ernest from Haiku, Hawaii on December 26, 2009
Purchased 4 of em all leaked where my plastic bowls connects w/ "o" ring seal, paint comes off with 10% ethenol fuel, pastic thread where plastic bowl connects to spins internally making it impossible to remove bowl,put original racor s3214 all ok,wasted 30.99 per filter plus shipping.
(8 of 8 people found this review helpful)
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Full StarFull StarFull StarFull StarFull Star
Based On 7 Reviews | Write Review
Full StarFull StarFull StarFull StarEmpty Star
Sierra 18-7844 - Fuel Water Separator Filter
by Kirk from Bellingham, Washington on October 30, 2016
I buy them every year because they work as advertised.
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Full StarFull StarFull StarFull StarFull Star
Always good
by Dave from London, Ontario on July 18, 2016
Have been using Sierra filters for years. Great product at a reasonable price
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Full StarFull StarFull StarFull StarFull Star
Fuel water separator
by Paul from Carmichael, California on May 09, 2016
This was the right fit it worked perfect the price was great .
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Full StarFull StarFull StarFull StarFull Star
LOOKS GOOD
by JOE from Ludington, Michigan on February 18, 2015
GOOD
(0 of 1 people found this review helpful)
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Full StarFull StarFull StarFull StarFull Star
good
by Daniel from Central Square, New York on September 29, 2014
good
(0 of 1 people found this review helpful)
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Full StarFull StarFull StarFull StarFull Star
Sierra Fuel/Water Separator
by Andrew from Rogers, Ohio on May 01, 2012
With gasoline now contaning 10% ethanol, removing water from the fuel is important. Ethanol attracts moisture from the air, and moisture in the engine is bad news. I've used Sierra fuel/water separators for years, and never had any such related problems with water. They should be changed yearly, more frequently if you run more than the average.
(14 of 15 people found this review helpful)
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Full StarFull StarFull StarFull StarFull Star
Review for Sierra 18-7844 Fuel Water Separator Filter
by a Customer on March 20, 2009
(5 of 18 people found this review helpful)
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Average Customer Review for Fuel Filter - 18-7857-1 - Sierra
Full StarFull StarFull StarFull StarFull Star
Based On 1 Review | Write Review
Full StarFull StarFull StarFull StarFull Star
Review for Sierra 18-7857-1 Fuel Filter
by a Customer on June 23, 2009
Its just a filter... It fit so I guess thats a good thing...
(13 of 26 people found this review helpful)
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Average Customer Review for Sierra 18-7846 Fuel Filter
Full StarFull StarFull StarFull StarFull Star
Based On 4 Reviews | Write Review
Full StarFull StarFull StarFull StarFull Star
Sierra fuel filter
by Roger from Greenfield, Indiana on September 14, 2015
Shipped quickly- worked perfect.
(1 of 1 people found this review helpful)
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Full StarFull StarFull StarFull StarFull Star
4cylinder omc
by Mark from Adrian, Michigan on June 07, 2013
Part was a perfect fit for the 1991 omc 4 cylinder i/o shipping on time as promised product arrived undamaged
(2 of 3 people found this review helpful)
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Full StarFull StarFull StarFull StarFull Star
Water/Fuel filter
by Thomas from Pearland, Texas on December 26, 2011
Very satisfied, shipped quickly.
(3 of 4 people found this review helpful)
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Full StarFull StarFull StarFull StarFull Star
Review for Sierra 18-7846 Fuel Filter
by a Customer on June 30, 2009
Great price for a quality product !!
(7 of 17 people found this review helpful)
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Q:
Is this a fuel water separater filter and what is the micron rating?
A:
No it is not. It is an inline fuel filter.


Q:
What is the replacement for this discontinued item?
A:
Sierra part number 18-7846 is similar to the mallory 9-37803. Double check that the oem part being replaced is listed in the description.


Q:
Does this replace a mallory 9-37815 or OEM 981911?
A:
No this is the correct one: http://www.iboats.com/Replacement-Canister-Filter-18-7861-Sierra/dm/view_id.173336


Q:
Does it come with the gasket and O-ring?
A:
Yes. The O-ring is attached to the filter and it acts as a seal. There is no gasket necessary.


Q:
Do you carry the gasket and o ring for this filter?
A:
No. The O-ring is attached to the filter and it acts as a seal. There is no gasket necessary.


Q:
Is this the filter for the 18-7278 pump?
A:
Yes it can be used in that pump.


Q:
Is this the same filter as found in murcury marine part # 35879884t?
A:
No this is a fuel filter that goes in a Rochester carb.


Q:
Does this fit on a GM 302 Inboard engine. 2001 Glastron Volvo Penta ???
A:
Please call or chat in with engine info to confirm, we need manufacturer name, horse power, model/serial number.


Ask a question
Question & Answer Guidelines
This product ships in 1 business day.
Add to Cart and enter your Postal Code to determine the shipping charges and estimated delivery date.
Most products and orders leave our warehouse in 1 business day. However, select items may take more processing time. Alaska and Hawaii orders please add 1 additional warehouse processing day.
Standard Shipping Policies

Please be careful when ordering this product, it has limitations that differ from our General 30-day Return Policy. After all, we want you to be satisfied with your order so you'll return again and again as an iboats.com customer, and to also recommend us to your boating friends

Propellers

We're here to help! We understand that sometimes a product you purchase just doesn't work out, which is why we want to make the return process as easy as possible for you. After all, we want you to be satisfied with your order so you'll return again and again as an iboats.com customer, and to also recommend us to your boating friends.

Propellers may be returned within the first 30 days after shipment if in new, unused condition with all original packaging in good condition; plus parts, accessories, manuals, and/or warranty cards included. Propellers that are returned with grease or other traces of residue will not be accepted. You will need to receive a return authorization number (RA #) as well as instructions from our Customer Service Department.

Once the propeller touches the water it is considered used and is non-returnable. Returned propellers are subject to a 15% restock fee.

Warranty Policy

30 days after the purchase date, the manufacturer of the product(s) will need to be contacted for a warranty claim.

Returns for Canadian Customers

Canadian customers, please be careful when placing your order; iboats.com does not accept any return merchandise on Canadian orders unless the merchandise you received was defective, damaged, or an error was made by iboats.com. In such cases, please contact iboats.com Customer Service within 30 days of the original shipping date for a return authorization number. Returned items that do not have a RA # will not be accepted.

See our complete return policy.