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  1. Duramax Sixth Generation: 2017-2019 (L5P)
    17 GMC 2500 HD L5p. How do you get thermostat housing off of engine? The rear bolt is underneath the turbo intake horn.
  2. Duramax Third Generation: 2006-2007.5 (LBZ & LLY)
    I am doing a thermostat replacement on a 2006 chevy 2500 with the 6.6L duramax. I know that I need the o-rings but I am also seeing a 4 bolt gasket. Is that 4 bolt gasket needed for the thermostat housing or do I only need the o-rings for the upper radiator pipe and the thermostats?
  3. Vans
    So I had the opportunity to change the thermostats in a Duramax van the other day and I did a write up on it. No pictures, but they have a second van and I hope to do the stats in it soon. So here is the write-up I did. If you feel it needs to get added to a how to folder, that would be great...
1-3 of 3 Results