PRT Part number & quiz question.

Even the most casual of visitors to the T-Bar will have noticed that I’m an inveterate up grader (some might say retrograde, or at least sidestepper). My horizons have had to reduce as I’ve aged & become less flexible, an example; from sorting a marine diesel in the dungeon of a steal canal barge with a fag lighter for illumination, to now doing all I can to maintain the virginity of my Rover K series VVC cylinder head gasket. One ruse I use is to liberate parts from prostrate tf’s at my local scrappy, the ones that are post MG Rover's“resolution of the gasket problem”. To this end I’ve had the plumbing for the tf PRT upgrade in the f, which having served the original car & a good stint in mine, I now believe it to be “semi buggered”. I have no idea of the age of the donor tf & thus chassis number, which makes cross referencing the replacement part number from the EPC problematic.
Internet searches have given me “grey 82c soft spring” but no PEMxxxxxxx part number & eBay presents all manner of stuff from £11-00 to £75-00. The £11-00 offering allegedly replaces every type including the Stepspeed & most of Land Rover range. I know this flies in the face of what I wrote recently about replacement parts, but you can’t rework a PRT off a scrapper & I’d rather spend £11 as opposed to £75 if it performs the same function correctly & in accordance with OEM specifications. If I spend £11 & it lasts 4 years, I can afford to replace it six times for the cost of the most expensive offering, which will take the car to over 50 years old & me nearly 100 & I doubt I’ll be much interested by then.
Could anyone pluck the silver needle part number from the haystack of hash & present it to me, Coronation Crown like, on a red velvet cushion. I would be most grateful.
Finally, can anyone explain why it takes me 360 words to ask: “Is there a general purpose PRT & what the part number”. The best answer & the correct part number will win a White Fiver*
*photocopy.

Are these pictures of any help to you?

I believe its this part number
PEM101021

Yes PEM101021 is part number which supersedes PEM101020 originaly mentioned in the tables above.

Thanks Roverlike, I am familiar with those diagrams, in fact I would have be able to draw them freehand & in my sleep when I was fitting the system. I wasn’t all that well when I decided to fit the PRT & should have postponed it, but even under the weather I was as impetuous as ever. I recall being sat on my little stool in the pit with coolant pissing out all over me whilst the wind whistled across from Ireland, under the garage door creating a chill factor of absolute zero. No bunny could have been less happy.

And thanks to Steve also. I think I’d come down on one of those two. My workshop computer jumped ship the other day so once back from the man who is effecting the under warranty repair (tomorrow) I’ll order one.