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Our Transmissions

SMD LLC offers transmission rebuilding, including warranty. We also keep an inventory of new, rebuilt, and used transmissions in stock.  

SMD also maintains an inventory of many obsolete and hard to obtain transmissions for a variety of engines.


Transmissions from:
  • Borg Warner Velvet Drive
  • Hurth
  • PRM
  • Technodrive
  • Volvo Penta
  • Walters V drive
  • Yanmar / Kanzaki
  • ZF


TECHNODRIVE Twin Disc TMC 40 P transmission, NEW: US $1,198.00

TWIN DISC / TECHNODRIVE model TMC 40 P marine transmission, new, with warranty. Your choice of 1.45:1, 2:1, or 2.6:1 reduction ratio.

List price is $1,329.00, we sell these new units discounted.

It is rated for a maximum 34.8 horsepower diesel engine at 3600 rpm. The engine must have left hand [ counterclockwise ] rotation, when looking at the flywheel. A right-hand or clockwise rotating propeller must be used.

It will bolt to a 4? diameter Borg Warner / Velvet Drive prop shaft coupler. We have these couplers in stock, new, to fit 3/4?, 7/8?, 1?, 1.25?, and 1.375? diameter prop shafts. $49 each.

It is the buyer?s responsibility to ensure this transmission will fit the application.

Please contact us with any questions.

These high quality marine gears will directly replace a Hurth HBW 50, HBW 100, or ZF5, ZF10 transmission. Just unbolt your old transmission, and bolt this one in it?s place.

Unlike Hurth / ZF transmissions that use multi disc clutches, this Technodrive gear uses a simple cone clutch. This makes them VERY reliable, robust, and trouble free.

Contact us for shipping costs, please send your city, state and zip code for a quote.

This unit is being sold with a 1 year warranty.

These transmissions are only a sample of our revolving used and rebuilt inventory. Contact us about your specific needs.


used transmission
transmission transmission

for more information or to make an appointment call 8606662184 store on ebay
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