Finding gearbox serial number via engine serial number

Re: Finding gearbox serial number via engine serial number

by RotaxOwner Admin » 8 years ago

RotaxOwner Admin

59 1.6k 16.6k

Yes, that information is in the factory records for your engine.

Originally, 5646615 came equipped with gearbox part number 887703, having gearbox serial number 32246.
(Of course, unless you have the complete service records, there no guarantee that you still have the original gearbox.)


Incidentally, 5646615 is a ROTAX 912 ULS produced 15-May-2006.
Original factory configuration:
without fuel lines
UL2 I=2,43 with clutch
without vacuum pump
with green valve covers
without mech. tachom. pick up
without external generator
without air guide baffle
with FLY-DAT connection
with nipple conn. for oil pump
with expansion tank
without air box
without engine truss
starter standard

Re: Finding gearbox serial number via engine serial number

by Simon Cooke » 8 years ago

Simon Cooke

4 6 0

Wow! That was impressive - thanks very much!

Re: Finding gearbox serial number via engine serial number

by James Sledd » 8 years ago

James Sledd

0 3 2

Similarly, I have an old 912UL (s/n 4152939) - (that has been upgraded to the 912 Xtra 95 hp version) - with a gearbox s/n 10193. I'd like to know what model of gearbox this is (A. B or C version) and what the gear ratio is 2.27:1 or 2.43:1. Thanks for a great, informative forum.

Re: Finding gearbox serial number via engine serial number

by RotaxOwner Admin » 8 years ago

RotaxOwner Admin

59 1.6k 16.6k

4152939 is a ROTAX 912 UL produced 18-Aug-1994.
This engine (and most other engines more than twenty years old!) has no original configuration records in the factory database, and we are not able to determine what was its original gearbox.

We have no records of any gearbox with the serial number 10193. Can you see a six digit part number on the gearbox? The gearset inside may have been changed, but if the gearset's own serial number is recorded in the database, we could tell you the ratio. In any event, you can determine the gear ratio by counting the teeth... ( see http://www.rotax-owner.com/en/rotax-forum/3-4-stroke-technical-questions/6354-i-can-identify-gear-ratio-by-gear-s-n#17272 )

Re: Finding gearbox serial number via engine serial number

by J. Michael Barbieri » 7 years ago

J. Michael Barbieri

0 2 0

Hi, I have an 582 engine model 99 with the original invoice showing it was purchased by the previous owner with a C gear box from a U.S. distributor. Apparently, the gear box was damaged in shipment and it was replaced by a new box with unfamiliar numbers/letters scratched into the gearbox surface.

Can you tell me anything about the C-box and motor?
Thank you,
JMB

Engine Ser. No.: 678999
Type C gear box: "c-300 s/n 10-9999" and "KF 74"