Aftermarket IST Brand Large Flo Jet Carburetor for Briggs and Stratton Cast Iron Engines
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Briggs and Stratton Large Flo Jet Carburetor with Choke Style B


Product Description

Carburetor for Briggs and Stratton Cast Iron Engines.

This is a reproduction of the Briggs and Stratton Large 2 Piece Flo Jet Carburetor.  Also known as the Briggs "4 Bolt Carb."

The carburetor body is made of a high quality cast aluminium. We have also implemented an improvement over the original Flo Jet Design. We have added a neoprene o-ring between the emulsion tube and carburetor body. This prevents leaks from the bottom of the carburetor. 

Carburetor also includes M6-1 threaded rod for to use with your air filter cover.

About the choke lever:

This choke lever is designed to be used with a choke cable connected to your tractor's dashboard. The choke lever can also be moved to either the left or right side of the carburetor.


Intake Mounting threads: 1/4-20

Air Cleaner Mounting Thread on bottom: M6-1.0

Will Fit Vintage and Antique Engine Models With Model Numbers beginning with:

17, 19, 2, 24, 25, 30, 32

 Replaces Part Numbers:

  • 392587 
  • 391065 
  • 391074 
  • 391992 
  • and others

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Product Reviews

Write your own product review

  1. satisfied 5 Star Review

    Posted by on Oct 29th 2017

    Excellent seller. I returned the first carb received and the seller tested it and returned to me. It worked fine and tractor is running. Seller was best communicator I have dealt with

  2. Old carbs unserviceable, in my opinion 4 Star Review

    Posted by on Apr 25th 2017

    I broke down and treated myself to serviceable equipment. I checked it out and bolted the large flo-jet up. Dialed it in and a some linkage adjusted. I'm satisfied and actually very happy with my choice. Thanks Norm.

  3. Excellent 5 Star Review

    Posted by on Apr 20th 2017

    Excellent response. Carb arrived in the mail 2 days after I ordered it. It is of outstanding quality. I have not installed it yet because I have been busy with other projects but have a high level of confidence it will work fine.

  4. Excellent Product 5 Star Review

    Posted by on Apr 2nd 2017

    Arrived in great time. Easy to install. Exact replica of original. Extremely well made. Literally saved my tractor!

  5. Looks good and ready to bolt on. 5 Star Review

    Posted by on Mar 30th 2017

    I can't review it yet, my project is not quite ready for that step. I feel confident that it will work though.

    I will say the packaging for shipment was totally inadequate. I may need to train their person... It was put in a USPS box and had a ball of newspaper on one side of it. When it arrived the box looked like it had been crushed, I was thankful that it was not damaged ...Should have been wrapped completely in bubble wrap and taped, then put in a box.


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