How long does EUI injector repair take?

Turnaround time depends on injector type and parts availability. In most cases, testing and rebuild work is completed within a few business days. A confirmed timeframe is provided after bench testing.

Do you test EUI injectors before repairing them?

Yes. Every Electronic Unit Injector (EUI) is electronically and mechanically bench tested before any repair work begins to ensure accurate diagnosis and prevent unnecessary component replacement.

Can I courier my EUI injectors to your workshop?

Yes. We accept EUI injectors from workshops and fleet operators across New Zealand. Proper packaging is required to prevent transit damage. Contact us for shipping guidance.

Do you offer exchange EUI injectors?

Where available, we supply remanufactured or exchange EUI injectors to reduce downtime. Availability depends on engine platform and current stock.

What brands of EUI injectors do you service?

We service a wide range of diesel injection brands including Bosch, Cummins, CAT, Detroit, Volvo, Scania, Perkins, Delphi, Denso, Stanadyne and more.

How long does diesel pump repair take?

Turnaround time varies depending on pump type and parts availability. Most diesel pump testing and repairs are completed within a few business days once diagnosis is confirmed.

Do you diagnose diesel pumps before repairing them?

Yes. Every diesel pump undergoes bench testing and inspection before any repair work begins to accurately identify the fault and avoid unnecessary replacement.

Can I courier my diesel pump to your workshop?

Yes. We accept diesel pumps from workshops and fleet operators across New Zealand. Secure packaging is important to prevent damage during transit.

Do you offer exchange diesel pumps?

We provide exchange and remanufactured diesel pump options where available to help reduce downtime. Availability depends on pump model and stock.

What brands of diesel pumps do you service?

We service a wide range of diesel pump brands including Bosch, Denso, Delphi, CAT, Cummins, Zexel, Stanadyne and more.

Governors

Take control of your RPM.

Simms Diesel supplies mechanical and electronic governors for industrial diesel engines, generators, pumps and agricultural equipment.

From simple speed-limit systems to full actuator-style governing units, we stock Woodward-type, Bosch-style, Cummins, Yanmar and universal-fit options — plus rebuild kits, linkages and control levers.

Whether you're replacing a worn-out control or tuning a gen-set for stable performance, we’ve got the gear and the expertise to help you dial it in.