Heavy Diesel Parts and Services are Southpac Trucks service provider for the greater Canterbury region.

We are part of Southpac Trucks TRP customer assist program. We offer a 24 hour callout service and can normally have a technician to you within the hour in the event of a breakdown.

Heavy Diesel Parts and Services are the only Full Cummins dealer in the greater Canterbury Area.

We also carry out servicing and repairs on a wide range of other makes and models of road transport equipment in our fully equipped workshops.

Our service technicians receive up to date training on the latest engine and drive train releases by Kenworth and DAF through dedicated Southpac training.

Workshop Services

  • Scheduled Servicing
  • HDPS has on-site Brake testing, VCA and COF testing lanes at two of our South Island Branches, Hornby and Timaru. Operated by five highly trained vehicle Inspectors with over 60 years’ experience between them. Time slots are booked in most cases, so to minimise the down time of your vehicle.
  • Engine and Gearbox rebuilds
  • Engineering services available
  • Trailer repairs and servicing
  • Insurance Repairs

Onsite Services for

  • Industrial Engines
  • Genset servicing and maintenance
  • Marine engine servicing and maintenance

Marine Servicing and Repairs

Heavy Diesel Parts and Services are Cummins Diesel engine specialists. But are qualified to service all types of marine diesel engines.



HDPS specialises in engine servicing, engine rebuilds and re-powering using genuine parts.


Christchurch Workshop

64 Columbia Avenue
Christchurch 8042, New Zealand
Phone: 03 349 2009
24h Breakdown Callout: 027 220 2792

Timaru Workshop

54 Sheffield Street Washdyke
Timaru 7910, New Zealand
Phone: 03 686 6663
24h Breakdown Callout: 027 479 1522