Commercial • Industrial • Agricultural • Marine
Your one convenient source for a total diesel solution.
We supply a range of reliable diesel engines from leading global brands for commercial, industrial, marine and domestic use. Whatever your project or replacement need, we’ll help you choose the right engine and support it with expert servicing and genuine parts.
We have a huge range of genuine top-name brand diesel parts in stock, including DEUTZ, Lister Petter, Gardner and more. Even if we don’t have the specific part you need, we’ll get it in for you fast, direct from the factory.
We service, overhaul and repair all makes of marine and industrial diesel engines, generators, and pumps, using genuine-brand spare parts and the latest technology. It’s all backed by a team of skilled diesel engine specialists who are serious about helping you keep your business running.
We supply, install, service and maintains diesel generators for industrial, standby, portable, home and marine applications, from 5 kVA backup units through to 2200 kVA industrial systems.
Our team has the skills to rebuild engines from a range of diesel brands. It literally is what we built our business on. Our engine rebuild service includes pulling an engine down to its bare components and carefully rebuilding, cleaning and repainting so it looks and runs like new.
We supply, service and repair marine diesel engines, generators, gearboxes and steering systems for commercial vessels and pleasure craft, with a specialist marine team ready to work anywhere across New Zealand and the Pacific.
When off-the-shelf doesn’t fit, we design and build it. Custom pumps, bespoke gensets, diesel repowers and purpose-built systems: we’ll engineer the right solution, fabricate it, and install and service it.
We’ll build a programme around your equipment, your operating environment, and the manufacturer’s recommendations, then make sure it’s delivered on time, every time.
Providing the diesel power solution that’s right for you.
Here at Shaw Diesels, we’ve been providing effective diesel engine solutions for over thirty years.
While our offices are based in Auckland and Christchurch, we supply, repair, service and maintain diesel engines for clients throughout New Zealand, the Pacific and beyond.
We’re more than just a diesel company. We’re your full-service diesel engine partner.
We’ll provide you with the right solution, because we take the time to understand what you need from your diesel power. You can rely on our proven skills, experience and technology to keep your diesel engines running strong, whether it’s on land or on the water. Our partnership approach helps organisations across the marine, transport, commercial, industrial and agricultural sectors.
Find out more about how it will work for you.
Global leaders in diesel power.
You’ll find them here.


Our services.
We supply a range of reliable diesel engines from leading global brands for commercial, industrial, marine and domestic use. Whatever your project or replacement need, we’ll help you choose the right engine.
Genuine OEM parts and consumables for diesel engines, generators and pumps — in stock, sourced direct from the manufacturer, or available to order.
You depend on your diesel engines to perform. Shaw Diesels makes sure they do; with expert repairs and preventive maintenance that keeps your equipment running reliably and efficiently, year after year.
Shaw Diesels supplies, installs, services and maintains diesel generators for industrial, standby, portable, home and marine applications, from 5 kVA backup units through to 2200 kVA industrial systems.
We stock new and used engines from the world’s most trusted brands, including Isuzu Marine, Lister Petter and Gardner.
We represent DEUTZ, Green Power Generators and Lister Petter for gas engine sales, and provide maintenance support for MWM (DEUTZ) large-scale commercial gas engines.
Shaw Diesels has been rebuilding diesel engines for over thirty years — returning tired, worn or damaged engines to full working order with a finish that looks as good as it runs.
Shaw Diesels designs, builds, supplies and services diesel-powered pump sets for borehole, irrigation, dewatering, slurry and industrial applications across New Zealand and the Pacific.
Sometimes your operation needs something that doesn’t exist off the shelf. A pump built to specific dimensions, a genset engineered for a tight space, a diesel repower to replace an electric motor, or a frost protection system with custom controls. That’s where Shaw Diesels’ design and build capability comes in.
Regular preventative maintenance is the key to maximising performance, reducing costly breakdowns and extending engine life.
The world is our workplace.
No matter where you are in New Zealand, Australia, the Pacific Region, or anywhere else in the world – we can go to you.
Our highly experienced team of mobile diesel engine trouble-shooters are on standby at all times. Based on Auckland’s North Shore, you’ll find we’re just a quick drive from all major marinas in the greater City of Sails, and just a short hop from regional and major airports.
The sectors we work with.
Commercial
Reliable power solutions for offices, retail, hospitality, healthcare and other business-critical facilities.
Industrial
Heavy-duty engines and generator systems designed for manufacturing, processing plants, infrastructure and continuous operations.
Marine
Dependable marine power and servicing solutions for commercial vessels, workboats and recreational craft.
Agriculture
Robust diesel power systems supporting farms, irrigation, pumping and essential rural operations.
Rapid response 24/7
0800 3388 969
There’s no “right time” for a diesel engine disaster. And because every hour counts when your diesel engine is down, our team is on call to put things right for you, 24 hours a day, seven days a week.
HEALTH & SAFETY
Serious about staying safe.
Shaw Diesels holds SiteWise Gold certification, achieving the highest score in our annual independent health and safety assessment.
This distinction confirms that our systems meet rigorous industry standards and are independently validated under New Zealand’s recognised contractor prequalification framework.
We operate confidently within regulated, high-risk and compliance-driven environments where safety performance is critical.
From workshop procedures to on-site servicing, our team follows strict health and safety protocols to protect our people, your people and your assets.
All technicians are fully trained in safe work practices, confined-space requirements, and risk management processes. We plan every job with safety in mind, ensuring the correct equipment, documentation and precautions are in place before any work begins.
You can trust Shaw Diesels to deliver reliable diesel solutions without compromising on the wellbeing of anyone involved.
What our clients say.

