Pls help me ID this tii strut housing......p/n..10211274250?

[jrkoupe]

Finally...confirmed....tii empty housing p/n!....from manu catalog.

..that is the number on the housing.....the housing also has the BOGE brand name and the BMW roundel etched on.

( Ive just learned the ....663 p/n includes an insert...so the p/n I see on the housing is prolly for a housing only...thanks Max)

ANY1 HAVE A LOOSE HOUSING TO EYEBALL FOR ME?.....

The p/n shown on bmwmobile differs......ending in 663.

Ive always assumed these to be tii housings....and the 3.5 " measurement confirms....but the p/n has me confused.....perhaps superceded at some point?...

tia

jrkoupe

[john_a]

The number you found on the strut tube is NOT a BMW part number, it is a BOGE number. Because BOGE was an OE mfg, they were able to us the BMW logo stamp on that part.

BOGE and Fitchel & Sachs both produced struts for the 02. I don't have a F&S part number handy, but I'd bet it is not the same as the BOGE number, even though the two would share the same BMW part number.

F&S became just "Sachs", then later both they & BOGE became brands owned by ZF. Sachs in USA used to be able to order in rally struts with extra camber & special valving!

Just for perspective, now that tii struts are going for crazy $$ even used, remember that for a long time BMW sold the tii struts for LESS than the standard 02 strut. Possibly this was true due to higher sales numbers for the tii strut, as it was a very popular upgrade.

Check out this invoice, a pair of new struts cost me $251.66 from BMW NA ten years ago.

This price included dampers (not insert cartridges) where the shock guts worked their seals against the smooth bore on the ID of strut housing tube. That actually had the advantage of better heat transfer & larger effective diameter for the damper.

[jrkoupe]

.dont show me old prices...ouch.

so back then they did not use inserts in the tubes.....?..confused. So you are saying the housing and damper was like a sealed unit...hmmmmm....never knew that.

the p/n was boge....... u r correct!

[john_a]

Yes, the strut housing was the body of the damper, when you took the gland nut off the top, you'd pull out the piston rod with all the exposed guts (not a sealed cartridge like the replacement parts you'd install in place of the original guts.)

The shop manuals show how to rebuild these old style dampers found inside the strut, including the shock oil installation. Of course in this usage the shock oil was actually used for the damping function, completely different than the later common practise of pouring a small amount of light engine oil (or other fluid) inside the housing when installing an insert for heat transfer & corrosion protection.

[Rennesport]

You can still buy it if available. It may just cost you a lot more...........

31-31-1-103-663 SPRING STRUT 654.79 428.20

[Allenr56]

Sorry to revive an old thread, but it looks like somebody sold me a set of BOGE strut housings like described above. I don't think I can use my bilsports with these, can I?

Is there any value to these?