ducatipaso.org

Today I have verified that the upper bushing for the 907ie 41.7mm M1R forks is available through BMW. The Marzocchi part number is: 538037
The BMW part number is: 31422310347
I paid $50 each from a local dealer here in Canada

This bushing is identical and from the same OEM supplier as our originals. I have successfully installed them in the forks from my '91 907ie with stock 17" wheels (and of course the longer version of the M1R). I have not verified if there is an equivalent for the lower bushing. These came from the part list for the BMW K1100LT. I would expect that the lower is the same, but the dealer didn't have any in stock to check.
It is interesting that although the BMW fork looks so different externally and internally, it uses some of the same parts. I suspect it was made by Marzocchi as well.

The identical OEM fork seal is also available from BMW.
The Marzocchi part number is 528134.
The BMW part number is: 31422312928
I paid $29 each from the same BMW dealer.

Ducati 907IE spare part numbers(from USA manual):

Dust scraper: 800048396 (last time when i get these from Ducati there was stamped 000048396 & fits also to 851/90')
Oil seal: 93040051A

Where You get those Marzhocci part numbers? Anywhere available? I have one manual, "Instruction for use and maintenance 5/88" and there is NOT any ordering numbers, only part numbers for drawings

Did U mean "fork seal" that oil seal and by "upper bushing" that dust scraper? I hope that we speak about same things now I asked because i hate misunderstoods....

Agree w Antti, good to know exactly.
Maybe the excellent pics here could help?
http://forums.ducatipaso.org/viewtopic. ... 8&start=15

I try allways use those words from original manuals...

Or would this help:

Oil seal: "öljystefa"
Dust scraper: "paskanraapija"



Anyway Canada man send very good info! Thanks to him and god bless him... Btw, how many Celcius in Canada these days??? Here was 3 weeks about -20C...-27C, but summer came here, now only -10C !!!! Anyway now to hot Sauna with

Thanks Pasoloyd,

I'll pay those Beemer Boys a visit as I need new upper and lower guides in my front fork.

Ducbertus

Finnpaso:
The upper bushing is item #19 on page TAV20 of the '92 907ie parts manual available on this site. This correponds to Ducati #34910031A, Marzocchi part #538037 and BMW part #31422310347. This is NOT the dust scraper - item #15.

The oil seal or fork seal (or "Junk Ring") is item #18 on the same drawing and corresponds to Ducati #93040051A, Marzocchi #528134 and BMW #31422312928.

The Marzocchi numbers came right off the original parts.

The Marzocchi manual covers a different version of the M1R and the parts diagram does not match the 907ie forks. The proper diagram is in the Ducati parts book mentioned above. Please see also http://forums.ducatipaso.org/viewtopic. ... 8&start=15 for the photos of my forks.

...it is -5 deg C tonight.

Tamburinifan:
The seals and bushings are not shown in the photos because they have already been installed in the forks. Unfortunately, I didn't take the pictures before I started re-assembly.

ducbertus:
Let us know if the BMW parts are the same please! I did not research the lower bushings as mine were fine.

Thanks!

Just a follow up on the parts for our M1R forks. I have identified and installed 2 more parts that are no longer available from Ducati. These are exact Marzocchi parts as used on both the BMW K1100LT and 907ie and are readily available through any BMW dealer.

Item #16 in the picture below:
Ducati #85240011A - washer: BMW #31422310335
Item #17 in the picture below
Ducati #800041393 - stop ring: BMW #31422310334

Just to re-iterate should there be any questions about the validity of the part numbers I have quoted in these posts. The parts described as sourced from BMW are not "like" or "similar to" or "kind of fit" substitutes. They are EXACT equivalents to the parts in the 907 ie forks and are manufactured by/for Marzocchi just like the ones used in our Ducatis.

Just wanted to be crystal clear about this...

just discovered the BMW realoem-site where you can find all parts of cars and bikes.
the lower bushings have partnumber 31422310346, where the upper bushing is part number 31422310347.
they are widely available. in the US at engelandmoto.com for instance.

I've to replace my bushings anyway, so lets give it a try

Bertus

Thanks for the tip on the lower bushing. Looking forward to knowing if it is the equivalent to Ducati OEM like the upper one is.

wow, these BMW partnumbers help.

Just tried to order all the needed parts to rebuild the 907 fork.
I have two alternative numbers to add, the Guzzi-part is much cheaper:

Gasket #13: Ducati: 34910011A, alternative 800031113
Dust scraper #15: Ducati: 800048396, alternative 000048396, Marzocchi: 533138
Washer #16: Ducati: 85240011A, BMW: 31422310335
Stop ring #17: Ducati: 800041393, alternative 000041393 (both no longer listed), BMW: 31422310334
Junk ring #18: Ducati: 93040051A, Moto Guzzi: 30530502 Marzocchi: 528134, Ariete: ARI.083
Upper bushing #19: Ducati: 34910031A, BMW: 31422310347, Marzocchi: 538037
Plug #29: Ducati: 800037969, alternative 000037969, KTM (http://enduroklassiker.at) 7.533.005
Lower bushing #34: Ducati: 037037470, BMW: 31422310346, Moto Guzzi: 30530515

The junk ring is 41,7x55x7,5/10, but 41,7x55x8/10,5 fits as well!

For those of you who pay in €uros:
#13: 7.15€
#15: 12.2€
#16: 1€
#17: 2.5€ (BMW)
#18: 15.2€
#19: 19.1€
#29: 2€
#34: 19.1€
All parts x2, #16x4: --> ~160€ =210$ for the needed small parts. Not mentioned the oil itself and the new screws, rubber o-rings, etc....if my girlfriend knew...

Added a source for the rubber plug for the air-valves...

Following parts:

Washer #16: Ducati: 85240011A
Stop ring #17: Ducati: 800041393
Upper bushing #19: Ducati: 34910031A
Plug #29: Ducati: 800037969
Lower bushing #34: Ducati: 037037470

seem to be not available any longer. Stein-Dinse.de is not able to provide these any longer. #16 i got the last 2 available, #19 the last 1.
Other i ordered at BMW for 4x the price....

When i disassembled my fork, #16 was installed only 1x per leg. The catalogue says 2x. The upper ring wasn`t in there.

Somebody can tell me how it was with your forks?