Cummins

About Cummins

Cummins Inc. is one of the world's most respected and widely recognised manufacturers of diesel and alternative fuel engines, with a history spanning more than 100 years. Founded in 1919 in Columbus, Indiana, by Clessie Cummins and backed by banker William Irwin, the Cummins Engine Company was established with a singular mission — to build diesel engines that were reliable, efficient, and powerful enough to transform the way the world moves goods and gets work done.

In the early years, Cummins pioneered the commercial viability of the diesel engine in North America at a time when gasoline engines dominated the market. A landmark moment came in 1930 when Clessie Cummins drove a Cummins-powered truck from Indianapolis to New York City — a distance of over 1,000 miles — on just $1.38 worth of fuel, demonstrating to the world the extraordinary efficiency of diesel power. This spirit of engineering innovation and performance has defined Cummins ever since.

Today, Cummins operates in approximately 190 countries and territories, employing over 60,000 people worldwide. The company manufactures a comprehensive range of diesel, natural gas, and electric power solutions, as well as filtration, turbocharger, and aftertreatment systems. Cummins engines power an extraordinary range of equipment including heavy trucks, buses, construction machinery, mining equipment, marine vessels, railway locomotives, and standby generators.

In the Australian construction and mining market, Cummins is one of the most widely fitted engine brands across heavy equipment from manufacturers including Komatsu, Hitachi, Doosan, Kobelco, and many others. The B, C, L, M, QSB, QSC, QSL, QSM, QSX, and ISX series engines are a common presence on Australian job sites and in mine site equipment rooms. With Cummins powering such a large proportion of Australia's heavy equipment fleet, access to quality Cummins engine parts is essential for keeping operations running without costly interruption.

Cummins Engine Parts We Supply

At Lucas Parts, we stock a comprehensive range of Cummins spare parts and engine components to suit a wide variety of Cummins engine series used in construction, mining, and agricultural equipment. Our Cummins parts inventory includes:

• Filters — oil filters, fuel filters, air filters, and coolant filters for all major Cummins engine series
• Fuel system parts — injectors, injection pumps, fuel lines, lift pumps, and fuel transfer pumps
• Turbochargers and components — genuine and aftermarket turbo assemblies, actuators, and gasket kits
• Cooling system parts — water pumps, thermostats, radiator hoses, and coolant additives
• Engine seals and gaskets — head gaskets, crankshaft seals, valve cover gaskets, and full overhaul gasket sets
• Overhaul and rebuild kits — complete inframe and out-of-frame overhaul kits including pistons, rings, liners, and bearings
• Belts and tensioners — drive belts, timing components, and belt tensioner assemblies
• Electrical components — sensors, solenoids, ECM units, and wiring harnesses
• Aftertreatment parts — DPF filters, DEF injectors, and SCR system components for Tier 4 compliant engines

Can't find the Cummins part you need? Call our team on 1300 987 300 and we will source it for you.

Why Choose Lucas Parts for Cummins Engine Parts?

• Australian stock — faster delivery, no lengthy international lead times
• Competitive pricing — genuine and quality aftermarket Cummins parts at competitive rates
• Expert advice — our team understands Cummins engine families and can help identify the correct part for your specific engine serial number
• Full warranty — all parts are inspected and covered before dispatch
• Minimise downtime — an engine failure on a construction or mine site can cost thousands of dollars per hour; we keep critical parts ready to ship

Genuine vs Aftermarket Cummins Parts — Which Should You Choose?

Genuine Cummins OEM parts are engineered and manufactured to the exact tolerances of your engine and are the recommended choice for critical internal engine components such as injectors, turbochargers, overhaul kits, and ECM units. Using genuine parts on these systems ensures correct fuelling, correct boost pressure, and correct engine management — protecting your engine from premature wear and maintaining compliance with emissions regulations.

For high-frequency consumable items such as oil filters, fuel filters, air filters, coolant hoses, and drive belts, quality aftermarket Cummins-compatible parts offer a cost-effective alternative that can deliver equivalent filtration and performance at a significantly lower cost. This is particularly valuable for Australian fleet operators running multiple Cummins-powered machines where filter and service part consumption is high.

At Lucas Parts, we supply both genuine and premium aftermarket Cummins parts, giving you the flexibility to make the right procurement decision for each component based on its criticality, your machine's operating hours, and your maintenance budget. Our team is happy to advise you on the best option for your specific engine and application.

Cummins Engine Series We Support

We supply parts for a wide range of Cummins engine families commonly found in Australian construction and mining equipment, including:

• B Series — 3.9L and 5.9L engines widely used in compact construction equipment and light trucks
• C Series — 8.3L engines used in mid-size excavators, wheel loaders, and trucks
• L Series — 8.9L engines used in larger construction equipment and on-highway trucks
• M Series — 10.8L engines used in heavy construction and mining equipment
• QSB Series — Tier 3 and Tier 4 compliant engines widely used in modern excavators and construction equipment
• QSC and QSL Series — mid-range Tier 4 engines used in larger excavators, cranes, and equipment
• QSM and QSX Series — heavy-duty engines used in large mining trucks, drilling rigs, and industrial equipment
• ISX and X15 Series — high-output engines used in heavy haulage trucks and large mining equipment

Don't see your engine series listed? Contact us — we support a broad range of current and legacy Cummins engines and will do our best to source the parts you need.

Serving Construction and Mining Businesses Across Australia

Lucas Parts supplies Cummins engine parts to customers in Melbourne, Sydney, Brisbane, Perth, Adelaide, Darwin, and regional Australia including mining regions in the Pilbara, Hunter Valley, Bowen Basin, and Goldfields. We work with civil contractors, mining operators, earthmoving companies, plant hire businesses, fleet maintenance teams, and equipment dealers who need reliable engine parts supply with fast turnaround.

Browse our full Cummins parts catalogue or contact our team today to discuss your requirements.

Frequently Asked Questions — Cummins Engine Parts

How do I identify the correct Cummins part for my engine?

The most reliable method is to locate your engine's CPL number (Control Parts List) and serial number, both found on the engine dataplate attached to the engine block. These two numbers together uniquely identify your exact engine configuration and allow our team to cross-reference the correct part numbers from Cummins' catalogue before you order.

What Cummins engines are commonly found in excavators?

Cummins engines are fitted as standard in many popular excavator brands sold in Australia. Common applications include the QSB6.7 in mid-size Komatsu and Doosan excavators, the QSL9 in larger excavators from Hitachi and Kobelco, and the QSX15 in heavy mining excavators. If you are unsure which Cummins engine series powers your machine, our team can help identify it from your equipment's model and serial number.

How often should Cummins engine filters be replaced?

Cummins generally recommends oil and fuel filter replacement every 250 to 500 operating hours depending on the engine series, fuel quality, and operating environment. In dusty Australian conditions, air filter service intervals may need to be shortened. Always refer to your engine's operation and maintenance manual for the recommended service schedule specific to your engine series and application.

Do you supply Cummins overhaul kits?

Yes. We supply both inframe and out-of-frame overhaul kits for a range of Cummins engine series. These kits typically include pistons, piston rings, cylinder liners, connecting rod bearings, main bearings, and a full gasket set — everything needed for a complete engine rebuild. Contact our team with your engine series and CPL number for availability and pricing.

How long does delivery take?

Delivery timeframes depend on your location and whether the part is in local stock or needs to be sourced. We will always provide you with a clear lead time before you confirm your order so there are no surprises.

Are your Cummins parts covered by a warranty?

Yes. All Cummins parts supplied by Lucas Parts carry a warranty. Speak to our team for specific warranty terms applicable to the part you are purchasing.

Can I order Cummins parts online?

Yes. You can browse and order through our website at lucasparts.com.au, or call us on 1300 987 300 for personalised assistance.