2011 Gator 855D Injectors - John Deere Gator Forums
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post #1 of 4 Old 03-20-2019, 02:16 PM Thread Starter
Join Date: Mar 2019
Location: Memphis
Posts: 31
2011 Gator 855D Injectors

Can anyone tell me if there is a copper washer on the end of the diesel injector where it goes into the head? I went to find a part number to order and looked on the injector diagram and also asked the John Deere dealer to look.

Neither of us saw where it called for one.
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post #2 of 4 Old 03-20-2019, 08:29 PM
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Join Date: Jan 2018
Posts: 128
Yes there is and you need to look on the head parts page, need to replace each time you have a injector out , you will need 3 of m811967 heat shield and 6 of m89135 washers on each side of shield, also remember each injector goes with each cylinder so mark them.
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post #3 of 4 Old 03-21-2019, 12:01 AM
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Join Date: Jan 2018
Location: Bonners Ferry, ID
Posts: 162
And make sure you get the torque right. 36-43 ft-lb on the injectors and 18-24 ft-lb on the fuel return line nuts. The TM also has injector cleaning instructions. JD recommends a nozzle cleaning kit. If the orifice is out of spec, then I'd pop for new injectors or if you don't even want to fuss with them, go new. Problem is people don't have the specialized tools or pressure test equipment to verify the proper mist.
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post #4 of 4 Old 04-05-2019, 09:11 PM Thread Starter
Join Date: Mar 2019
Location: Memphis
Posts: 31
Thumbs up Injectors


Your advice was spot on and greatly appreciated. It runs like a champ.

However, I just posted a new thread regarding the brakes...
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