Below are illustrations of 4mm scale DMUs produced ready-to-run by major manufacturers. Details of how to contact manufacturers and suppliers can be found in our modelling contacts section. This section currently only includes modern diesel units leased by TOCs on the Southern Electric system.

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Bachmann 31-510 ... 159001 "City of Exeter" Network SouthEast
	Bachmann's Class 158/9 models, whilst not part of their super-detailed "Blue Riband" range, are generally regarded as being good quality models. The bodywork is well detailed, the paintwork very good and the model benefits from a eight wheel drive from a powerful central can motor with flywheels. In the case of the three car 159 this is in the centre car, the motor and drive being largely obscured by the smoked glass windows. This model appeared in 1998. A second version also appeared in 1998, 31-512, which was in Network SouthEast livery but with Stagecoach SWT branding.

Bachmann 31-512 ... 159009 Network SouthEast overbranded Stagecoach South West Trains
	A second version appeared in 1998, 31-512, which was in Network SouthEast livery but with Stagecoach SWT branding.

Bachmann 31-514 ... 159016 South West Trains
	A third version appeared in 2001, in full South West Trains livery. Both 159 models are pictured without having the separately applied cab footsteps fitted.