Cairns S.I.M. Trans
Specialists in marine transmissions and marine diesel engines


Cairns S.I.M. Trans has a range of products available, including spare parts for boats and vehicles. We sell new and reconditioned engines and new and reconditioned transmissions.
As well as being able to source your spare parts for you, Cairns S.I.M. Trans stocks a range of quality brands.

We supply both new and used Caterpillar spare parts to suit most makes and models. We also carry some hard to obtain Fleetguard filters.

We sell both new and secondhand GM spare parts to suit a large variety of makes and models. We have an extensive list of suppliers so come to us for all your hard-to-obtain parts.

We also have common and rare Twin Disc spare parts in our shop, both new and reconditioned, to suit a wide range of makes and models.
We can supply spare parts on request when necessary.

Cairns S.I.M. Trans has specials on parts and this list is updated regularly. If you cannot find a part you are looking for, please forward us an email and we may have it in stock or we will endeavour to source it for you.

Here is an example of some of the parts we carry. We can organise your spare parts for the following:
  • Allison transmissions
  • Reintjes transmission
  • Caterpillar engines
  • Cummins engines
  • Detroit engines
  • Man engines
  • Twin Disc transmissions
  • ZF transmissions
  • GM engines
  • Perkins engines
  • Volvo engines