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Mariner Fuel Pump Kits

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Sierra 18-7803 Diaphragm Kit
Your Price: $8.99 Discontinued
Save: $0.80
(8% Off $9.79)
Part # 18-7803 ValueShip™ Eligible
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Replaces OEM part #
  • CHRYSLER FORCE 21-42990-A10
  • CHRYSLER FORCE 21-42990-A9
  • MERCURY MARINE 21-857005 A1
  • MERCURY MARINE 21-42990-A9
  • MERCURY MARINE 21-42990-A10
Fuel Pump Kit - 18-7804 - Sierra
Meltdown Sale Price: $4.13
Save: $3.03
(42% Off $7.16)
Part # 18-7804 ValueShip™ Eligible
Replaces OEM part #
  • MERCURY MARINE 23014A1
Fuel Pump Kit - 18-7806-1 - Sierra
Meltdown Sale Price: $13.72
Save: $7.60
(35% Off $21.32)
Part # 18-7806-1 ValueShip™ Eligible
Fuel Pump Kit
Fuel System
Fuel Pump Kit - 18-7807 - Sierra
Meltdown Sale Price: $3.38
Save: $1.52
(31% Off $4.90)
Part # 18-7807 ValueShip™ Eligible
Replaces OEM part #
  • MERCURY MARINE 55278A1
Fuel Pump Kit - 18-7808 - Sierra
Meltdown Sale Price: $3.20
Save: $1.89
(37% Off $5.09)
Part # 18-7808 ValueShip™ Eligible
Replaces OEM part #
  • MERCURY MARINE 55278A5
Fuel Pump Kit - 18-7809 - Sierra
Meltdown Sale Price: $3.58
Save: $1.51
(29% Off $5.09)
Part # 18-7809 ValueShip™ Eligible
Replaces OEM part #
  • MERCURY MARINE 55278A4
Fuel Pump Kit - 18-7810 - Sierra
Your Price: $14.29
Save: $2.86
(16% Off $17.15)
Part # 18-7810 ValueShip™ Eligible
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Replaces OEM part #
  • MERCURY MARINE 90363A1
Fuel Pump Kit - 18-7811 - Sierra
Meltdown Sale Price: $6.29
Save: $3.41
(35% Off $9.70)
Part # 18-7811 ValueShip™ Eligible
Hurry! Only 1 left in stock
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Replaces OEM part #
  • MERCURY MARINE 89031A1
Fuel Pump Kit - 18-7812 - Sierra
Your Price: $7.59
Save: $3.08
(28% Off $10.67)
Part # 18-7812 ValueShip™ Eligible
Replaces OEM part #
  • MERCURY MARINE 89031A2
Fuel Pump Kit - 18-7813 - Sierra
Meltdown Sale Price: $7.19
Save: $3.34
(31% Off $10.53)
Part # 18-7813 ValueShip™ Eligible
Replaces OEM part #
  • MERCURY MARINE 89031A3 & 66599A3
Fuel Pump Kit - 18-7814 - Sierra
Meltdown Sale Price: $7.58
Save: $4.24
(35% Off $11.82)
Part # 18-7814 ValueShip™ Eligible
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Replaces OEM part #
  • MERCURY MARINE 89031A4
Fuel Pump Kit - 18-7815 - Sierra
Meltdown Sale Price: $5.39
Save: $2.55
(32% Off $7.94)
Part # 18-7815 ValueShip™ Eligible
Replaces OEM part #
  • MERCURY MARINE 1399-5137
Diaphragm Fuel Pump - 18-7817 - Sierra
Your Price: $11.98
Save: $4.41
(26% Off $16.39)
Part # 18-7817 ValueShip™ Eligible
Replaces OEM part #
  • MERCURY MARINE 21-42990A7
  • MERCURY MARINE 21-42990A8
  • MERCURY MARINE 21-857005A1
Fuel Pump Kit - 18-7818-1 - Sierra
Meltdown Sale Price: $9.22
Save: $3.93
(29% Off $13.15)
Part # 18-7818-1 ValueShip™ Eligible
Replaces OEM part #
  • MERCURY MARINE 21-42909A3
  • MERCURY MARINE 21-857005A1
Sierra
Average Customer Review for Fuel Pump Kit - 18-7804 - Sierra
Full StarFull StarFull StarFull StarFull Star Based On 4 Reviews | Write Review
Full StarFull StarFull StarFull StarEmpty Starfuel pump kit
by Lee from Bakersfield, California on September 12, 2013
got the kit in today was packed good and safe already rebuilt the pump will try it this weekend thank you
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Full StarFull StarFull StarFull StarFull Starfuel pump kit
by Deborah from Prewitt, New Mexico on August 06, 2012
I am so pleased to be able to find everything I need for my boat in your site. TY
(0 of 2 people found this review helpful)
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Full StarFull StarFull StarFull StarFull StarFuel pump kit
by Larry from Arlington, Tennessee on April 21, 2012
All parts needed were there and installation was easy. Worked great during test run. Very satisfied, Thank you.
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Full StarFull StarFull StarFull StarFull Starworks
by Calvin from Dinwiddie, Virginia on June 07, 2011
It worked.
(0 of 1 people found this review helpful)
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Average Customer Review for Fuel Pump Kit - 18-7806-1 - Sierra
Full StarFull StarFull StarFull StarEmpty Star Based On 5 Reviews | Write Review
Full StarEmpty StarEmpty StarEmpty StarEmpty StarWhere are the rest of the parts?
by Wes from Debary, Florida on July 05, 2013
When I ordered this fuel pump rebuild kit, I wrongly thought it was a complete kit. There are no diaphragms in this kit. My fuel pump has three inside the fuel pump. Also, the gasket between the fuel pump and the cylinder head was not supplied with the kit. When rebuilding a fuel pump, it is expected you would be able to rebuild it completely.The item title is "Fuel pump kit" . More correctly, it should be labeled "A few parts that leave an incomplete job" Does anyone know where I can find the diaphragms and gasket for my 120 hp Force outboard?
(2 of 3 people found this review helpful)
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Full StarFull StarFull StarFull StarFull StarGood Kit
by Cindy from Franklin, North Carolina on June 14, 2013
I got this for my 1968 Chrysler 75..It fit perfectly now I'm back on the water!
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Full StarFull StarFull StarFull StarFull StarFuel pump kit
by Ramadan from Levittown, Pennsylvania on June 17, 2012
worked very good.
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Full StarFull StarFull StarFull StarFull StarChrysler Outboard Owner
by Roger from Suwanee, Georgia on July 01, 2011
As with all Sierra parts I have received from iboats.com, they all perform as they should.
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Full StarFull StarFull StarFull StarFull StarChrysler 70hp outboard fuel pump kit
by Frank from Novato, California on June 08, 2011
All the parts in this kit fit perfectly and were easy to install.
(4 of 5 people found this review helpful)
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Average Customer Review for Fuel Pump Kit - 18-7807 - Sierra
Full StarFull StarFull StarFull StarFull Star Based On 8 Reviews | Write Review
Full StarFull StarFull StarFull StarFull Starfule pump kit
by Mark from Dawson Springs, Kentucky on October 14, 2013
order was sent fast
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Full StarFull StarFull StarFull StarFull Starfuel pump kit
by Michael from Chino, California on August 28, 2012
Perfect, great shipping 55555 star rating
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Full StarFull StarFull StarFull StarEmpty Starfuel pump kit
by Orlando from Bloomington, Illinois on July 28, 2012
Easy to install and works great.
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Full StarFull StarFull StarFull StarFull StarGood Quality
by Andrew from Nevada, Iowa on July 07, 2012
All gaskets fit perfectly, diagphram was good quality rubber, overall would reccemend.
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Full StarFull StarFull StarFull StarFull Stargreat
by James from Fairfield, Iowa on June 11, 2012
great
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Full StarFull StarFull StarFull StarFull StarEverthing good
by Allen from Vacaville, California on May 28, 2012
Everthing good
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Full StarFull StarFull StarFull StarFull StarSatisfied Customer
by Brandon from Winfield, Alabama on March 23, 2012
I am very pleased with the kit and super fast shipping!!!
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Full StarFull StarFull StarFull StarFull StarFuel Pump Kit
by Ray from Wolfforth, Texas on September 26, 2011
Everything fit perfect.
(1 of 1 people found this review helpful)
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Average Customer Review for Fuel Pump Kit - 18-7808 - Sierra
Full StarFull StarFull StarFull StarFull Star Based On 6 Reviews | Write Review
Full StarFull StarFull StarFull StarFull Stargreat parts, xcellent service.
by Jerry from Millington, Tennessee on July 01, 2015
the parts were xcellent, and the service to get the correct parts was even better. i looked all around the memphis area and could only find one dealer that carried the pump kit, and he was out of stock. so i found it on iboats, half of what he wanted, for the same brand.
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Full StarFull StarFull StarFull StarFull StarMerc 800
by Thomas from Anchorage, Alaska on August 10, 2014
Purchased for a 78 mercury thunderbolt 800. Perfect fit and function.
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Full StarFull StarFull StarFull StarFull Stara1
by Thomas from Garrison, Kentucky on March 23, 2014
Aok
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Full StarFull StarFull StarFull StarFull StarFuel Pump Kit
by Ron from Valentine, Nebraska on September 09, 2012
I received my order very quickly and it did the job
(0 of 1 people found this review helpful)
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Full StarFull StarFull StarFull StarFull Star1979 Mercury 80 HP
by Brian from Millbrook, Alabama on September 07, 2011
My engine would begin to surge when ran at full power. Ordered this replacement kit. It had everything I needed to completely rebuild my pump. Problem fixed
(1 of 2 people found this review helpful)
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Full StarFull StarFull StarFull StarFull StarSierra Fuel Pump Kit
by Michael from Nanticoke, Pennsylvania on July 30, 2010
All parts and gaskets work and fit perfect. Great product.
(2 of 4 people found this review helpful)
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Average Customer Review for Fuel Pump Kit - 18-7809 - Sierra
Full StarFull StarFull StarFull StarFull Star Based On 3 Reviews | Write Review
Full StarFull StarFull StarFull StarFull StarWorks great
by Kenneth from Orland, California on June 24, 2013
Fast shipping works great thanks.
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Full StarFull StarFull StarFull StarFull Stargreat kit
by John from Orange, Texas on April 16, 2013
Good kit.I rebuild fuel pump every other year and they never look wore.
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Full StarFull StarFull StarFull StarFull StarSierra Fuel Pu mp Kit
by Ronald from Jefferson, Texas on April 29, 2011
This kit is a very easy kit to install. No instructions needed and can only be installed one way. I was very surprised at the low cost and fast shipping. It was mailed on Tuesday and I received it on Thursday. Thanks
(1 of 1 people found this review helpful)
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Average Customer Review for Fuel Pump Kit - 18-7812 - Sierra
Full StarFull StarFull StarFull StarEmpty Star Based On 2 Reviews | Write Review
Full StarFull StarFull StarFull StarFull StarFuel pump kit
by Russell from Jessieville, Arkansas on April 03, 2013
My parts shipped quick and when it arrived everything was as it should be.
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Full StarFull StarFull StarEmpty StarEmpty Starleaked
by Chris from Ramona, California on August 05, 2011
Bought this kit and it leaked right after. Spent the couple extra dollars and got an OEM quicksilver kit and no more leaks. this also doesnt come with check valves.
(2 of 2 people found this review helpful)
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Average Customer Review for Fuel Pump Kit - 18-7813 - Sierra
Full StarFull StarFull StarFull StarFull Star Based On 1 Review | Write Review
Full StarFull StarFull StarFull StarFull Stargreat product
by Ricky from Chickamauga, Georgia on August 26, 2012
Great product, great service, fast delivery..got me back on the water alot faster than I thought..thanks guys..
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Average Customer Review for Fuel Pump Kit - 18-7815 - Sierra
Full StarFull StarFull StarFull StarEmpty Star Based On 6 Reviews | Write Review
Full StarFull StarFull StarFull StarFull StarFuel pump kit
by David from Ashton, Illinois on August 04, 2013
Very satisfied with kit and service.
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Full StarFull StarFull StarFull StarEmpty StarFuel Pump Kit - Sierra
by Marilyn from Calais, Maine on October 12, 2012
Very satisfied.
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Full StarFull StarFull StarEmpty StarEmpty StarWrong Part
by Thomas from Grand Rapids, Michigan on July 12, 2012
Even though I matched up the serial number on the motor with the order, the parts did not resemble what I needed or what was shown in the manual I had just ordered. But I did get the correct parts from the big NAPA warehouse down the street from me.
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Full StarFull StarFull StarFull StarEmpty Starfuel pump kit
by Douglas from Green River, Wyoming on May 03, 2012
Came as described and fit perfectly. did not have any diagrams with it to help put the gaskets in the proper place.
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Full StarFull StarFull StarFull StarFull Starfuel pump kit
by Keith from Marianna, Arkansas on February 06, 2012
exelent replacement for OEM.
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Full StarFull StarFull StarFull StarFull StarExact fit
by Kevin from Garland, Texas on May 24, 2011
Great product!
(0 of 2 people found this review helpful)
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Average Customer Review for Diaphragm Fuel Pump - 18-7817 - Sierra
Full StarFull StarFull StarFull StarHalf Star Based On 27 Reviews | Write Review
Full StarFull StarFull StarFull StarEmpty StarSierra 18-7817 diaphragm fuel pump rebuild kit
by Edward from Freeport, Pennsylvania on June 04, 2015
Everything needed to do the rebuild except instructions. Fortunately, I still had the instruction sheet that came with a Mercury kit from 23 years ago.
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Full StarFull StarFull StarFull StarFull StarPerfect Solution
by Ron from Saugus, California on May 30, 2015
Your rebuild kit worked perfectly and saved me hundreds of dollars. Just watched a utube and your kit and now my Merc 115 runs like new. Pretty easy took an hour of procrastination and 30 minutes of work..
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Full StarFull StarFull StarEmpty StarEmpty Stardiaphram fuel pump 18-7817-sierra
by John from Deerfield Beach, Florida on May 25, 2015
i found you out from a u tube video on how to rebuild my fuel pump . everything was alright and i was able to complete the job myself which saved me allot of money. my only problem was with the "I" gasket shown on the bottom of your pic of parts shown to my left. As i was installing it somehow it fell and when i picked it up i noticed it was torn.It was made of some type felt like material ,which to me, seemed kind of flimsy for a gasket. my old one seemed intact and made of a rubber like material that was obviously much stronger. This also gave me some doubt about the overall integrity of the product.However,my boat is running fine and thank you for making this product available. John A. Ladkani
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Full StarFull StarFull StarFull StarFull StarFuel Pump Kit
by Jeffery from Cincinnati, Ohio on July 10, 2014
Right parts , easy repair to do and works great ! Very Happy .
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Full StarFull StarFull StarEmpty StarEmpty Starbe careful
by Donald from San Antonio, Texas on May 30, 2014
was fairly easy to repair pump. thank god i didnt destroy the nylon valve retainers. the ones in the kit both broke. kind of flimsey. the rest of the kit appeared to be of good quality.
(2 of 2 people found this review helpful)
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Full StarFull StarFull StarFull StarFull StarExcellent Product
by Dawn from Kelso, Washington on April 15, 2014
Kit was easy to install, pretty self-explanatory. Engine was constantly losing it's prime, not idling, and running bad. Runs great now, no problems.
(2 of 2 people found this review helpful)
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Full StarFull StarFull StarFull StarFull StarMercury fuel pump kit
by Kris from Ragley, Louisiana on March 14, 2014
Nice materials and easy to install
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Full StarFull StarFull StarFull StarFull StarHIGHLY RECOMMEND
by Johnny from Lake Cormorant, Mississippi on November 27, 2013
THIS KIT IS EXACTLY THE SAME AS THE KIT THAT HAS MERCURYS NAME ON IT
(1 of 1 people found this review helpful)
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Full StarFull StarFull StarFull StarFull Starvon
by Hilery from Tallahassee, Florida on September 23, 2013
I'm very pleased. Keep up the good work. I have found a place to get all my outboard motor parts. I'll be back.
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Full StarFull StarFull StarFull StarFull StarWorked perfectly...better than original
by Ronald from LeRoy, Illinois on September 02, 2013
These parts fit perfectly.....a little bit heavier duty than the original. Every phase of iBoats is first class.
(1 of 1 people found this review helpful)
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Full StarFull StarEmpty StarEmpty StarEmpty Starbad nylon pin ancors
by Michael from Coon Rapids, Minnesota on May 28, 2013
nylon pin were cheap busted very easy whent an used old ones
(2 of 2 people found this review helpful)
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Full StarFull StarFull StarFull StarFull StarGood Service
by Ronald from Greenville, Ohio on August 10, 2012
Received parts in a timely manner and they solved my problem with the motor.
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Full StarFull StarFull StarFull StarFull StarPerfect
by Noel from Orlando, Florida on July 23, 2012
Rebuilt the fuel pump on my Mercury 40 Classic with this kit. It is a perfect replacment and match with quality parts. I even think the material used for the diaphragms are even better then OEM. Gaskets are high quality. No problems with the install, however, you will probably want to refer to a maintenance manual as the kit does not come with any instructions. Pretty straight forward nevertheless as long as you realize that you have to break off the little plastic pins on the leaf valve retainers and then press them back into the retainers to expand the retainers and lock thim in place.
(1 of 1 people found this review helpful)
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Full StarFull StarFull StarFull StarFull StarFuel Pump Kit
by Edward from Salem, South Carolina on July 22, 2012
Kit had all pieces required and worked perfectly! Much cheaper than the Quicksilver part.
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Full StarFull StarFull StarEmpty StarEmpty StarFuel pump kit
by Bill from Bell Buckle, Tennessee on July 03, 2012
Good kit. Missing gasket pictured in upper right. Had to reuse original. Highly recommend having manual because no instructions are supplied And if you get sidetracked like i did you wont get it together correctly. However pump works well
(1 of 2 people found this review helpful)
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Full StarEmpty StarEmpty StarEmpty StarEmpty StarDamaged
by Milton from Mcgaheysville, Virginia on June 16, 2012
Well Saturday is here, time to rebuild my fuel pump on my outboard. Everything out of the way, pump is off, disassemble, start rebuild, comes to a halt, one of the rubber diaphragms has 2 pin holes in it, of course I am told to call Sierra, if they say its bad then to call iboats and return for replacement. For a 12.00 kit, think not, waste of time ordered new one from someone else
(1 of 1 people found this review helpful)
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Full StarFull StarFull StarFull StarFull StarGreat service
by Ronald from Matawan, New Jersey on April 29, 2012
Product was as described shipping was faster than indicated. Will use this seller again
(1 of 1 people found this review helpful)
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Full StarFull StarFull StarFull StarFull StarWrong kit
by Robert from San Gabriel, California on March 31, 2012
I ordered two different kits one of which had all of the parts I needed but I wasn't sure according to the picture foe certain parts so I ordered the other kit that pictured the parts that I would need to completely rebuild my fuel pump.Upon returning the kit I didn't use,I will order the first kit to have as a spare at hand.My satisfaction really wasn't thumbs down, what I ment by that is explained above. Completely satisfied R. Crouse.
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Full StarFull StarFull StarFull StarFull StarWrong kit.
by Robert from San Gabriel, California on March 31, 2012
I ordered two different kits. Not sure which one was for my fuel pump I ordered them both to be safe. The one kit had all the parts I needed so I returned the other one and will order another one of the same that I used as a spare.(JUST IN CASE THE PROBLEM SHOULD ARISE AGAIN)Ha ha. I haven't had the boat on the water yet 'cause it's needing an advanced oil injector pump. She was neglected by her previous owner. As For my satisfaction with iboats.com,I am COMPLETELY SATISFIED!!
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Full StarFull StarFull StarFull StarFull StarFuel Pump Kit
by Deborah from Cleveland, Tennessee on September 17, 2011
Diaphragm and seals were all bad on my fuel pump... motor having a heck of a time trying to plane out and reving/jerking. Wouldn't idle. Fuel pump wasn't having enough pressure to suck the fuel through. Got this for $11 and rebuilt the pump (which is nothing to do) hooked up the lines to the pump and mounted it back to the motor. Took it out and the motor ran as good as new. Beats paying alot more for a brand new fuel pump all together. BTW, this is the only place online I could find this particular fuel pump kit, so thanks iboats...
(1 of 1 people found this review helpful)
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Full StarFull StarFull StarFull StarFull Star1996 Force 120 fuel pump repair
by Art from Bel Air, Maryland on August 11, 2011
easier than i anticipated, and, iboats was the only place i could find the kit
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Full StarFull StarFull StarFull StarFull StarSeems to be a good product
by Stephen from Starr, South Carolina on July 21, 2011
I have yet to install this item but seems to be quality.
(4 of 9 people found this review helpful)
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Full StarFull StarFull StarFull StarFull Starrebuild kit
by David from Brook Park, Ohio on July 14, 2011
I was very satisfied with the parts and delivery time.
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Full StarFull StarFull StarFull StarFull StarFixed my problem
by Ken from Colorado Springs, Colorado on July 05, 2011
Had a Force engine spewing gas and the culprit was a pinhole in the fuel pump diaphragm. This kit fixed the issue.
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Full StarFull StarFull StarFull StarFull StarFast Shipping
by KIM from Ville Platte, Louisiana on July 04, 2011
nice doing business
(1 of 1 people found this review helpful)
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Full StarFull StarFull StarFull StarFull StarFixed one of my motor problems
by Ken from Colorado Springs, Colorado on June 28, 2011
Boat would not idle and there was excessive gas in the exhaust. Rebuilding the fuel pump fixed both problems.
(2 of 2 people found this review helpful)
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Full StarFull StarFull StarFull StarFull Starawesome
by Matt from Lexington, South Carolina on January 31, 2011
easy to install took about 30min and fast shipping thank you very much!
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Average Customer Review for Fuel Pump Kit - 18-7818-1 - Sierra
Full StarFull StarFull StarFull StarFull Star Based On 2 Reviews | Write Review
Full StarFull StarFull StarFull StarFull StarAbsolutely Perfect
by Robert from San Gabriel, California on April 01, 2012
This kit although not showing all the pieces was a perfect match. Thanks iboat.
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Full StarFull StarFull StarFull StarFull Starowner
by a Customer from harrisville, Utah on July 06, 2011
thanks
(0 of 2 people found this review helpful)
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Q:
Is this correct for my 1985 Forcr 85hp Mdl?
A:
This would be the correct Fuel Pump Kit for an 85hp 1985 Force engine.
Q:
Where can i find the check valves for this pump?
A:
You will have to contact Mercury. The OEM number is 21-8M0082362.
Q:
Which kit would i need for a 1981 chrysler 85 hp outboard, model 850h1d?
A:
We only have one listed for the 856 model for Chrysler. You will need to contact Mercury for the correct kit.
Q:
Ihave a 1993 mariner 5 hp seral od926220 model 7005211ck what fuel pump or kit do I need?
A:
Unfortunately we do not have the kit for your motor based on the serial number you gave. You will need to contact Mercury.
Q:
Is this the kit for my 150hp ser no. d239492?
A:
No, you need part #18-7817: http://www.iboats.com/Diaphragm-Fuel-Pump-18-7817-Sierra/dm/view_id.174941
Q:
Is this the right kit for my 2002 90hp mercury elpto serial number: OT 481737?
A:
No. This is the one you need: http://www.iboats.com/Fuel-Pump-Diaphragm-Mercury/dm/view_id.1347223
Q:
Which fuel pump kit do I need for a 20hp Mariner serial OD065962?
A:
The fuel pump is attached right to carb. So for replacement fuel pump kit you need to order a carb kit: http://www.iboats.com/Carburetor-Repair-Kit-18-7212-Sierra/dm/view_id.174825
Q:
What oil pump do I need for my 150 mariner D239492?
A:
This part is discontinued and was a rebuild kit for a fuel pump. For other questions regarding parts for your motor call us at 1-800-914-1123.
Q:
Looking for a fuel pump kit for a 15 hp merc ser?
A:
We need the serial number to match up fuel pump kit. So you can call us at the number at the top of the page with that and we can assist you further.
Q:
What fuel pump kit do I need for a 1991 mariner 150 V6 serial no. 0D029788? thanks!?
A:
We don't have the fuel pump kit for your motor at this time. You will have to contact Mercury for a kit.
Q:
Which kit for 15hp mariner?
A:
We would need to know serial number in order to match up correct kit. Contact us at the number at the top of the page with that info and we can take a look.
Q:
Would this be the right kit for a 1982 18hp ser#starting 604?
A:
Yes, this is a standard replacement for your Mariner engine.
Q:
I hope this is the right part ? hope its a sera # that is tthe merc # for the 21-857005a1?
A:
Well it cross references with 21-857005A1 if that's what you're asking. So if the OEM number to your fuel pump kit was 21-857005A1 then this will work.
Q:
Is item #18-7817 correct kit for 30 HP Mariner, 06447032?
A:
That's not a valid serial number from Mariner. It seems really close, but that second digit is usually a letter. Like 0G447032. Call us at the number at the top of the page with the serial number and we can match it up.
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