Morgan 4/4 5 Speed Mazda Gearbox Conversion Kit - Sigma


Prices are exclusive of VAT

Available - Despatched 1-2 business days after order receipt

Vitesse Gearbox Conversion Kit using the proven Mazda MX-5 Mk3 5 Speed Transmission, as fitted to the current Morgan Classic Vehicle Line.

Suitable for the Sigma Morgan 4/4, 2009-2012. 

Our kit includes the following:

  • NEW Mazda MX-5 5 Speed Transmission
  • Billet Machined Flywheel
  • Adapter Ring
  • Mazda Clutch Friction Plate
  • Mazda Clutch Cover
  • FTE Concentric Slave Cylinder
  • Bespoke Shift Lever and Shift Knob kept in original position
  • Prop Shaft
  • Spigot Bush with Mazda needle roller bearing assembly
  • Gearbox Rear Mount Bracket Assembly and Isolator
  • Complete fixings kit
  • Clutch Alignment Tool


The gearbox comes fully assembled so the fitting is only as complicated as replacing an original gearbox. We even include a Mazda clutch alignment tool to assist with assembly!

We use all OE Mazda components where possible, ensuring parts quality and also serviceability.

All brackets are electrocoated ensuring maximum resistance to corrosion.


The all alloy case means significant weight savings can be achieved with this kit, up to 23kg compared to the R380!


Gear Ratios: 

Gear Ratio - Mazda Transmission 
1 3.136
2 1.888
3 1.330
4 1.000
5 0.814



12 months manufacturing defect warranty offered on all parts.

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