XJ40 Coolant Expansion Tank - MMB4400AA

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10-09-2020, 01:39 PM | Replies: 4 | Views: 971

stran0020

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Join Date: Apr 2009

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Price
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Location Surprise, AZ, 85379, USA
Condition New or Used

Description:

Hi I'm looking for part number : MMB4400AA. It is the coolant expansion tank for a 1991 XJ6 (XJ40) shipped to 85379, Arizona. I believe mine is slowly leaking. If anyone knows where I can find one at a good price.

10-11-2020, 04:25 PM

jerry_hoback

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Heres what I have. It seems solid, and has the cap. But the coolant level sensor is bad. thats an easy fix, it just twists out. $40, plus $15 shipping.

Last edited by jerry_hoback; 10-12-2020 at 07:35 AM. Reason: add pics

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10-14-2020, 03:59 PM

stran0020

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Thanks Jerry, I'm going to try and reseal mine but if that doesn't work out I will let you know. Thank you

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10-26-2020, 08:58 PM

stran0020

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Got a used one from a local junk yard for $9. Was fine for 100 miles then busted at the seam pretty bad,leaking like a sieve now

anyone know where to get a new affordable one? or one for sell that someone has fixed? I tried repairing my original one but the screws I bought stripped and I'm too frusted to mess around with that anymore, I'm going to try JB WELD on the one I got from the junkyard.