Nissan Leaf motor coupler

Description

The EM57 motor from a Nissan Leaf or Nissan e-NV200 is very interesting to use in EV conversions. However, if you don’t use the Nissan reduction gearbox, mating the motor to your gearbox might be a challenge. The spline of the Nissan motor is quite specific and there are no clutches available that really fit.

The Leaf motor has a rolled spline which is cheaper to produce than our cut spline. Downside is that it is less accurate. We have managed to improve the fit compared to the Leaf gear coupler, but due to the above there will always remain some slight play.

Hardened Nissan Leaf motor coupler

We have sourced and invested in a spline cut tool for the Nissan EM57 spline. Various couplers will be produced. First available batch will be to mount a Nissan Leaf motor onto a Volvo M47 and a Volvo M40 gearbox. These couplers are dual spline. One side is the Leaf spline and the other side is the Volvo spline (coarse or fine depending on the model/gearbox). This ensures a perfect alignment. The coupler is hardened as a whole.

Adapter plates are currently under development and being tested and will be available as well.