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Mercarb Carburetor Kit

Mercarb Carburetor Kit

Your Price:$39.95
In Stock
Part Number:K529

Choose Options

We Also Recommend
Brass Float [+$12.95]
Ethanol Additive [+$8.95]
Nitrophyl Float [+$11.95]
Electric Thermostat [+$23.95]

Quantity Pricing

  • 2 - 4
  • $35.96
  • 5+
  • $31.96
This kit is about as close to a master kit as you will find. Lots of parts not usually found in today's kits. Mercarb marine carburetor rebuild kit. We offer 2 floats for this carburetor. The Nitrophyl float is like the original. Many prefer the brass which is also available.

Watch a video about this carburetor kit

  • Made in USA
  • Includes Power Valve
  • Includes Idle Mixture Screw
  • Includes Fuel Inlet Screen
  • Meets or Exceeds Manufactures Specifications
  • After the Sale Service

Mercury Marine
MCM 120, 140 w/153: 2.5L, 181: 3.0L
MCM 165 w/224" 3.7L
MCM 165, 175 w/229" 3.7L
MCM 175, 185 w/262" 4.3L
MCM w/262 4.3L
MCM 200, 898 w/305" 5.0L
MIE 5.7L w/350MAG

Don't forget to change the float at rebuild time. These carburetors have nitrophyl floats and they absorb fuel over time. We now have brass floats available for these carburetors.

Your carburetor may only have part of the carburetor stamped on the carburetor. I.E. 1389-9563A1 may be indicated as 9563

No return on opened kits.

5 Stars
Great product and awesome support
I bought this rebuild kit for my 1998 Bayliner carb. The kit included everything I needed to do a professional rebuild on the carb. I went to a local marine store and asked for a rebuild kit prior to buying this. They told me that i would have to buy all of the parts separately for almost $250. I told them, I could get a rebuilt card for that price... Just crazy.. So I found this kit on Mike's carbs. I watched Mike's video on the rebuild and felt confident I could do this. It arrived very fast and I went to work on the rebuild. In the middle of the rebuild, I found that my carb did not have the ball and screen in the accelerator pump shaft and i had watched the wrong video. I called Mike's carbs and I was told there were several variations and that they would get back to me shortly. within 15 minutes Mike emailed me and cleared it all up. I finished the rebuild taking my time. It took about an hour but that included cleaning some of the old gasket off the carb. I took the boat out last weekend and adjusted the air fuel and idle. Worked great! I was having issues with the motor bogging at around 3k rpm and loss of power above. It's still bogging a little but I have full power over 3k. I am guessing that it needs adjusted again since this was the last piece of the fuel system that hadn't been rebuilt/replaced. i will be taking it out again this weekend and I think I need to give it a bit more fuel on the air/fuel mixture. All in all, a great product and amazing service. I highly recommend that you try to rebuild your carb yourself if you are even somewhat mechanically inclined. It will save you a lot of money and Mike's carbs can help if you get stuck. Thanks Mike!
Did you find this helpful?  3 of 3 Found Helpful
Reviewed by:  from Chandler, AZ. on 8/23/2014
5 Stars
This is the exact mercury kit from dealer or internet thatwill cost you $65.00. Mikes is the best value for the money.
Did you find this helpful?  2 of 2 Found Helpful
Reviewed by:  from murfreesboro. on 5/25/2015
5 Stars
Weekend Mechanic
Kit was very complete and included some crucial pieces. The YouTube videos were exceptional. I was able to get things done I previously could not have imagined.
Did you find this helpful?  1 of 1 Found Helpful
Reviewed by:  from Lexington, KY. on 5/31/2015
5 Stars
I am amazed at how easy I found it to rebuild my MerCarb with the kit from Mike's Carbs. The boat had been flooding BAD after shutdown, and was lacking power when running wide open, but since the rebuild it's running better than I ever remember and no flooding issues anymore. The carb had been rebuilt recently (within last 2 years) but the ethanol seemed to have taken its toll and the accelerator pump had a tear in the rubber so it was time for another teardown.
Did you find this helpful?  1 of 1 Found Helpful
Reviewed by:  from Maine. on 5/30/2015
4 Stars
Delivery on Time but ...
Sommes carb are metric ... Like 861448N The brass threded valve And the "T" for the ball Check valve dont fit Clean the valve , use the l'odeur "T" and rebuild Engine run OK
Did you find this helpful?  1 of 1 Found Helpful
Reviewed by:  from Rouses point . on 9/4/2014
5 Stars
Awesome kit! Fast shipping !! Buy the brass float while your at it, you wont regret it!!! These are my new carb guys!!!
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Reviewed by:  from Grand Canyon. on 6/30/2015
5 Stars
I purchased the k529 carb kit along with the recommended brass float kit was a good fit and included both solid and spring loaded needle and seat. kit also included a power valve. service was excellent and shipping was fast
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Reviewed by:  from edmore nd. on 6/27/2015
5 Stars
boat carb kit
All the pieces were in the kit and fit properly!!
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Reviewed by:  from Saint Hedwig . on 6/21/2015
5 Stars
This kit was used to refurbish the carburetor on a 1990 Maxum 4.3L V6 engine, which I purchased new. Everything needed for the rebuild was contained in the kit, less the replacement of the float, purchased separately. The videos available on Mike's website were invaluable in providing the process and procedure of rebuilding the Mercarb 2 Barrel and gave me confidence to do the job. The operation was a total success!
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Reviewed by:  from West Seneca, NY. on 6/9/2015
5 Stars
Good fit except needed a little trimming off the back of the venturi cluster gasket. No real issue. A pair of scissors and 15 seconds.
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Reviewed by:  from Georgia. on 6/7/2015

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