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Briggs & Stratton Fuel Tank Cap, 5436K

SKU # 104649899
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Item Information

This OEM Briggs & Stratton Fuel Tank Cap ensures proper fit and performance to maintain the life of your Briggs & Stratton engine.

  • Used on many 450e, 500e, 550e, 550ex, 625ex, 675ex, and 725ex Series
  • Used on many 950 -1000 Series and Professional Series 7.75 - 8.75 engines
  • 1 (799585) fuel tank cap

Specification Description
Product Type: Mower Replacement Parts
Brand: Briggs & Stratton
Manufacturer Part Number 5436K
Briggs & Stratton Fuel Tank Cap, 5436K is rated 1.5 out of 5 by 2.
Rated 2 out of 5 by from I don't like this gas cap My 725ex uses this gas cap. It does not protect the opening of the gas tank like a screw-on cap in that when one opens the tank to fill grass clippings accumulated around the perimeter are in a prime position to fall into the tank. I'd love to retrofit my engine with a conventional gas cap.
Date published: 2016-07-31
Rated 1 out of 5 by from Doesn't fit Says its for a 725ex...definitely not. Too small...and there isn't a larger one.
Date published: 2016-06-04
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I have a M22500 Murray mower with a Briggs engine with this cap and it leaks profusely after 1 year of service - why?

Asked by: smelllikegas
Leaking from the cap can occur if the engine is overfilled with fuel or tilted in the wrong direction. These caps are vented and will leak if tilted the wrong way.
Answered by: Nicole_BriggsStratton
Date published: 2018-02-09

I have a briggs and stratton gold series engine that is 150cc with 6.25 torque. What gas cap do I need for this engine.

Asked by: pigg44
To locate any information on your engine, you will first need the model type and code. Please see the following link for assistance in locating these numbers: http://bit.ly/17rzznN Once you have this information you can find information on your engine here: http://bit.ly/12pIs1I Select engine as your product type and follow the directions for entering the model and type into the search fields.
Answered by: Nicole_BriggsStratton
Date published: 2018-02-09

I bought this gas cap (799585) for the B&S 725EX series engine but it is too small. What other cap should I get

Asked by: John V
To locate any information on your engine, you will first need the engine’s Model, Type, and Code. Please see the following link for assistance in locating these numbers: http://bit.ly/1qbgxSE Once you have located these numbers you can find information on your engine here: http://bit.ly/1Wn3uMr Choose the product your engine is mounted to and follow the directions for entering the model and type numbers you found on your engine for downloadable manuals and parts lists. The parts list you have available for download will provide you with a direct replacement gas cap, that should fit just fine.
Answered by: Xavier
Date published: 2018-02-09

I have a Murray M20300 mower. The Briggs and Stratton engine model number on the front is 9L602-1611-F1. The gas cap broke after only four months. There is no part number stamped on the broken cap. Will this gas cap work for this engine? Thanks!

Asked by: cgmills
The gas cap part number for your engine is 795472.
Answered by: Nicole_BriggsStratton
Date published: 2018-02-09

Will this gas cap fit a 450E Series?

Asked by: Tarheel53
To locate any information on your engine, you will first need the engine’s Model, Type, and Code. Please see the following link for assistance in locating these numbers: http://bit.ly/1qbgxSE Once you have located these numbers you can find information on your engine here: http://bit.ly/1Wn3uMr Choose the product your engine is mounted to and follow the directions for entering the model and type numbers you found on your engine. The information you are looking for will be listed in the engine's parts manual you can download from the website.
Answered by: Celia
Date published: 2018-02-09

I have a Murray with a Briggs & Stratton 625E motor. The gas cap that came with it leaks around the cap badly. No its not the vent and no its not tilted. Yes its the correct cap since I bought it new. I'm not only one with this issue so maybe fix it BS. 

Asked by: Jbob
Without the engines model type and code, we are unable to look into this issue. Please contact us directly with the requested information here: http://bit.ly/15oObYS
Answered by: Nicole_BriggsStratton
Date published: 2018-02-09

Gas cap replacement

I use Troy-Bilt 21" push mower with B&S 725ex 190cc engine.now the gas cap is broken and still under the warranty. Question 1: where can i get the parts for warranty replacement? Question 2: the parts number written on the cap is 798898 but cannot find same one. Is 799585 same as 798898?
Asked by: Massmower
No. The threading is different. I bought 2 of the same Troy-Bilt mowers 6 months apart. Two different model #s and the only non identical part on the mowers are the gas caps. The newer one threads outside the tank neck, the other has threads inside the neck. 796577 will not work for you either.
Answered by: NAKNIGHT48
Date published: 2018-02-09

Need to know which fuel cap to purchase

I have MTD model # 11A-B13L029. The engine is a 550EX. Which fuel cap should I purchase? The threading on the fuel tank is inside the fill hole not on the outside.
Asked by: johnnyb74
You will need the complete model, type and trim number of the engine to access the illustrated parts list for your engine. Here's a link to help you identify the complete engine number: http://bit.ly/XMcs5h Here's a link to locate the illustrated parts list: http://bit.ly/o005Yo
Answered by: Terri
Date published: 2018-02-09
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