Caterpillar® is the largest manufacturer of construction equipment in the world and is headquartered in Peoria, IL. CAT has been manufacturing construction equipment for nearly 100 years and has many subsidiaries including Perkins and Bucyrus-Erie. Supreme diesel services are proud to supply aftermarket replacement parts for this prestigious brand and repair services for all types of Caterpillar injectors and pumps for heavy earthmoving construction equipment and heavy gensets.  We are Caterpillar Aftermarket service Provider


Heavy equipment is essential for construction jobs of almost any size, from home building to large-scale commercial and civil projects. Earth-moving equipment covers a broad range of machines that can excavate and grade soil and rock, along with other jobs. Earth movers and other heavy equipment help speed earthwork and materials handling, demolition, and construction. Many types of heavy construction equipment are designed for multiple functions, making them indispensable on the job sites.

Caterpillar is the world’s leading manufacturer of construction and mining equipment, off-highway diesel and natural gas engines, industrial gas turbines, and diesel-electric locomotives.

Caterpillar is famous for its crawler tractors, or ‘Dozers’, and these were first used in large numbers in WWI as gun tractors. In WWII, Cat machines were manufactured in huge volumes. Their use became closely associated with the Construction Battalions, or ‘Seabees’ in the Pacific, and European airfield construction. Cat Dozers could also be seen playing their part in clearing beaches in the Normandy landings.

Over the years, Caterpillar has developed a comprehensive range of machinery, including:

Articulated dump trucks

Backhoe loaders

Hydraulic excavators

Mining trucks

Motor graders

Track loaders

Wheel loaders

This machinery is used in some of the toughest environments in the construction, road-building, mining, forestry, highway, and power generation industries. Cat has evolved over the years into a multi-national corporation.

Here at Supreme diesel services, we stock & supply Caterpillar parts and specialize in providing services for all types of Caterpillar parts for CAT engines, From vintage D2 dozers to the huge 120-ton D11T, and from the old favorite 215 to the more modern 320D hydraulic excavators. We specialize in supplying the complete one-stop-shop parts package for Cat engines. Our range includes smaller C1.1 up to larger 3500 engines in heavy plant or power generation applications.

Caterpillar began manufacturing products in India 50 years ago in Tiruvallur, and currently has facilities all around the country. With a focus on sustainability and best-in-class productivity, our employees produce world-class products for India and export Indian-made products to other countries.

Supreme Diesel Services specialize in supplying the complete one-stop-shop parts package for Cat engines. We are caterpillar aftermarket service provider for all types of Caterpillar Injectors and Pumps. Dealing in all types of Engine parts for Heavy Earthmoving Machine, Scanning (ET) facility for caterpillar (CAT) segments

To know more about its set-up and on-site services, please visit

We are an authorized sales dealer and service provider for Stanadyne India Private Limited; Lucas Indian Service Limited (DELPHI); and Hyundai Motor India Limited. Supreme diesel services is a caterpillar aftermarket service provider for all types of caterpillar construction equipments.

Furthermore, we offer comprehensive services for wide-ranging diesel fuel injection systems of several leading brands in the industry as BOSCH, DELPHI, CUMMINS, PERKINS, CONTINENTAL, and DENSO.

We also provide reconditioned Services for your CAT injectors and pumps.
To complement our range of fuel injection products we offer a full reconditioning service for diesel injectors and pumps.
Our well-equipped workshop is fully calibrated and staffed by trained engineers with many years of experience in servicing and repairing diesel pumps and injectors.
All pumps and injectors are disassembled for inspection for the complete report, diagnosing the parts required for overhauling of injectors and pumps.
All pumps and injectors are well-calibrated and tested as per OEM standards.


Nationwide Service

We provide a complete nationwide service and all repaired or exchanged items are available for next-day delivery using Fast way. We cater to both trade and private customers and we offer the convenience of payment.

Exchange Service

We understand that replacement pumps and injectors are often required quickly and with this, in mind, we developed our own rapid exchange service. Please visit our exchange service page for more details.