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Thread: Part identification question, 4d55 (picture)

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  1. #1

    Array
    Status
    Offline
    Join Date
    01-18-2015
    Posts
    250
    Location

    Inwood WV
    Vehicle

    1991 Mitsubishi L200
    Engine

    4D56-T
    Quote Originally Posted by SuperSloth View Post
    So, probably gonna be time for a new thread soon? Dunno whether to keep posting here and not clutter things up..

    Anyway. After waiting altogether too long for this thing to show up from Cyprus it appears that a 4d56 thermostat housing is not the same as a 4d55 thermostat housing.

    Anyone happen to have an extra for a 4d55 I could buy? Or should I consider getting a 4d56 water pump and keep this? This has been quite an exercise in parts hunting.
    That is the "water outlet" where the thermostat goes, the piece you bought bolts at the top of the engine by the injection pump. (im interested if you wanna sell it lol)
    d55 and d56 water outlet (thermostat on waterpump) are the same
    Quote Originally Posted by dancinggecko View Post
    Quite a few of the components for the gas engines are interchangeable with the diesel. The main bearings are the same between the 2.6 and the 4D55. I haven't tried, but they may very well be the same thermo housing.
    I could be wrong, but i recall reading the mains were bigger, i know the g54 is 60mm, but i think the d55 is 66mm

    G54 thermo housing MIGHT have same bolt pattern, however g54 thermo housing turns almost 90 off intake. The d55 is straight off the water pump

  2. #2

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    03-19-2016
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    33
    Location

    Boulder, CO
    Vehicle

    1985 Dodge D-50
    Engine

    4D55-T
    I must admit I am a bit confused by your reply. So the piece I have has nothing to do with the water pump outlet and thermo housing( on any engine?) I can't find where this might go on the other side near the injector pump, is that just for 4d56?

    I'd trade for the piece I need if you have an extra xD

    Quote Originally Posted by skullzaflare View Post
    That is the "water outlet" where the thermostat goes, the piece you bought bolts at the top of the engine by the injection pump. (im interested if you wanna sell it lol)
    d55 and d56 water outlet (thermostat on waterpump) are the same

    I could be wrong, but i recall reading the mains were bigger, i know the g54 is 60mm, but i think the d55 is 66mm

    G54 thermo housing MIGHT have same bolt pattern, however g54 thermo housing turns almost 90 off intake. The d55 is straight off the water pump

  3. #3

    Array
    Status
    Offline
    Join Date
    01-18-2015
    Posts
    250
    Location

    Inwood WV
    Vehicle

    1991 Mitsubishi L200
    Engine

    4D56-T
    that is the piece your top radiator hose connects to. Unfortunately i only have one water outlet for my waterpump

    I think the part you are looking for is MD152090

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