Has anyone figured out what are the differences between the shock options for XJR6
MNA3540CC (Bilstein 24-185806)
MNA3540EA (Bilstein 24-018647)
MNA3541CC (Bilstein 24-018586)
+ other possible part numbers

I hope I got those Bilstein numbers right. Does Bilstein publish their shock specs on their website? I couldn't find with a quick search, but that doesn't proof that the specs wouldn't exist there. All the shocks seem to cost about the same. The original rear shocks on my US specs XJR are stamped MNA3541CC and rear springs MNA3560DB.

If you have knowledge about the front shocks, feel free to share it as well.

 

Until a few years ago you could ascertain some of specification of Bilstein shocks from the part number alone...and there was a good website explaining it all. Then they changed the part number system. I think that website is long gone.

As I recall it was green for all market XJRs except Germany....which got yellow. On top of that there was before/after a certain VIN break. Jaguar itself 'reconciled' some of the various choices down to one or two part numbers so I suspect the differences are minor.

I also recall (this was years ago, mind you) that Bilstein's offerings via its replacement parts system didn't match its offerings as the OEM supplier. That is, for the X300 series Bilstein provided 7-8 different shocks/part numbers to Jaguar but, if you went to any of the Bilstein catalogs, only 3 choices were listed.

Hopefully someone will come along who can actually answer your questions

Cheers
DD

 

Based on Bilstein customer information reply :
"
The mentioned item numbers 24-018630 & 24-185806 are common B4 serial replacement Shocks.

The other passed item numbers 24-018630 & 24-018647 are custom made B6 shocks."

24-018630 & 24-185806 are the green ones, 24-018630 & 24-018647 are yellow ones, at least in my set of green ones from Jaguar classic parts/SNG Barrat was with markings and the Rock auto sold yellow ones had 24-018630 number on them



They did not provide the dampening characteristics unfortunately.

 

Bilstein website had a link to the following information regarding their shocks. Maybe some codebreaker familiar with the Jaguar part numbering scheme sees some pattern here. Color information is based on the picture they had on their database, so it could be "for illustration only", be different based on production run, marketing campaign or by market. Obviously the information is not complete, because there is no match for example for MNA3541CC which I have on my XJR (rear). In front I have MNA2141AC, which matches with the B4 shock. If I make a search for 1996 XJR, they list two options per axle, one B4 and another B6, highlighted in bold below.

Fronts
24-018630 (Green, B4, B36-1863) CCC5247, MMD2149BC/CB, MMD2141BC, MNA2140AC, MNA2141AC
24-018043 (Yellow with blue band, B6, B36-1804) CCC5247, MMD2140BC/CB, MNA2140AC
24-067249 (Black with blue band, B6, BE3-6724) CBC8301, CCC3845, CCC5243, CCC5245, MMD2140AB/AC/BB/CC

Rears
24-018586 (Black, B4, B46-1858) MMC3540AA/CA, MNA3540AA/AC/AD/BA/BB/BC/BD, MNA3541AD
24-018647 (Green with blue band, B4, B46-1864) MMC3540BA/CC/CD
24-185806 (Black with blue band, B6, BE5-6725) CCC6923, MMC3540AA, MMC3540CA, MNA3540AA/AC/AD/BA/BB/BC/BD/CC/CD

Ref: PKW