Iv got the same problem!
Just phoned my local Landy Dealer with regards this to ask about a price on a gauge!
I did have a 3.5 V8, now it has a Disco 200tdi. When i phoned up, the guy on the phone said the temp gauges are the same part number up to a certain year (Cant remember what year) and that i would just need the correct sensor for the engine! (200tdi sensor)
This was very comforting as he also said the new temp gauge would cost £135 not including VAT......... Fook rite off!!!
Bought a 200tdi Disco to 90 temp gauge from stevey parkers!
Hope this shines a bit of light!
Scott
gauge out of a 200 engined 110/90 off ebay tend to sell for less than a fiver = perfect match and no wondering what thread your block will have as you keep the original sender
I agree with you with the ebay bit sean but a bit confused what you mean by 'wondering what thread your block will have'?
the gauge was the same from the late 80's till the end of the 300tdi engine period
that's incorrect, and it's why people thinks they have done something wrong when fitting a 200 disco engine to replace a TD and find the standard (TD engined) gauge reads incorrectly
unless when you say late 80s you mean the first defenders already fitted with a 200, but then that negates the object ?
If you had a 2.5TD, and put a 200tdi in, you would need to fit the gauge from the TD or buy a Defender 200tdi gauge. If you put a 300tdi you would need to fit the sensor for a 300tdi Defender.
errr the sender from my 2.5TD went straight into the Disco 200Tdi without any problem with the threads ....