Genuine grey T/Stat v Motorad 439-180
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For a long time I have always used the motorad 439-180 and have been a proponent of it. I even left a review on Amazon exhorting the benefits of it. I change my T/sat every 12 months.
Last time that I changed it my temps went from 195-197 on the highy way to an average of 203.. Drat must be a faulty one so I sent it back and got another to the same effect. :mad: I thought that I might have a partialy blocked radiator, I tend to use my disco for extream off roading and and have burried a number of times.... So I thought i would give the genuine Land Rover grey T/Stat a try and I am amazed. Really amazed.... I always use the same way to bleed the Disco, now we all have our own ways to do it so I will explain mine: 1/ park the Disco on a ramp on the passenger side 2/ remove the bleed screw from the top rad hose and lift out the expansion tank and place it on the battery cover with a brick under to keep it level 3/ fil the expansion tank until a steady flow is coming from the bleed screw and with it still flowing tighten the bleed screw 4/ turn the heat on full and on high and now start the disco. 5/ a quick check to make sure that every thing is tight 6/ gently rev the disco to 3k revs and hold it there for 5 minutes. temps steady at 185 7 with the motor running place the cap on the tank and set it into its normal position. Job done. The effects of the Grey t/stat amazed me, the picture shwoing 194 is with it idling with the AC on for 10 minutes. I would now not hesitate to recommend replacing the motorad one for the genuine one |
I had the same success results when I switched from Motorad. I try and tell anyone that will listen that the Motorad is crap compared to Genuine Grey 180, but the motorad is still way better than a stock T-Stat.
All the stock T-Stats in the world should be gathered up and set on fire so they can never destroy another Disco. |
Put one in my truck, and the temps went from 215-225 down to 188-190.
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Is there a part number or other way to find the grey t/stat?
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yes, it's in his last pic. PEL 500110. I believe the gray one usually is referred to as PEL 500110G
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I had exact opposite experience.
Motorad average 186 temps Forum alerted me to its shortcoming so I bought the gen. 180 td5 stat.....temp. Average dropped to 184. On the 3rd day it stuck closed, temp got to 220, before I caught it. Just saying "stat happens" |
Funny just did this change yesterday, 180 degree motorad was about 199-203 on highway 206-210 around town, new genuine gray thermo has been 189 on highway 196 tops in traffic so far, very happy with it so far
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Lucky8 has a new website that is much more user friendly to navigate then there old site and they have the Genuine Grey 180 for $79. I think they have the same T-Stat on there Ebay store for $80 free shipping.
Low Temp Thermostat |
Originally Posted by jbarr89
(Post 475197)
yes, it's in his last pic. PEL 500110. I believe the gray one usually is referred to as PEL 500110G
PEL500110 is the correct part number, G at the end is added by AB or other companies to note that it's genuine. |
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