Diesel Engineering Services

Diesel Engineering Services Diesel Engineering Services specialises in the diagnosis, repair and re-manufacturing of diesel Diesel Engineering Services Ltd.

is an independent company specialising in the diagnosis, repair and re-manufacturing of all types of fuel injection equipment. This includes technologically advanced state-of-the-art electronic diesel control (EDC) systems for both cars and commercial vehicles. We were the first company in the UK and Ireland to offer to our customers VP44, VP30/29 and Commonrail pump testing and repair. Diesel Eng

ineering Services Ltd., was formed in 1968 by Michael Courtney Senior, specialising in Diesel fuel injection equipment, testing and repair. The family tradition of quality service remains to the present day with Michael Courtney’s two sons – Brian and Michael running the business. Throughout the 1980’s, 90’s and into the new millenium Diesel Engineering Services has evolved alongside the advances in diesel injection technology. As technology has shifted from mechanical to electronic systems our technical expertise has also evolved. The current success and expertise of the company can be directly attributed to the experience of Brian and Michael Courtney. Throughout its years of business, Diesel Engineering Services has constantly kept in step with advances in the diesel industry, investing in technology and training with an underlying vision of providing a quality service. has built a deserved reputation as Ireland’s leading diesel injection specialists, based on its total commitment to excellence – in both its products and in the comprehensive service to customers. had this commitment officially recognised in May 1998 when it became the first independent company in its field to gain IS EN ISO 9002 accreditation – a fitting tribute to the company in its 30th anniversary year. New premises house the only commercially available chassis dynamometer (rolling road) in Ireland. This 850BHP Dynamometer, together with a fully equipped, state of the art tune-up bay is invaluable in the diagnosis and repair of problems which allows us to maximise engine performance of all cars, vans and commercial vehicles.

18/04/2026

Now available: GDI injector testing at Diesel Engineering Services. Carbon Zapp ETBRx testing for Bosch, Continental, Denso & Delphi injectors across Ireland.

18/04/2026

At Diesel Engineering Services, we are committed to staying at the forefront of fuel injection technology. As part of this ongoing investment, we are pleased to offer professional testing of HEUI (Hydraulically Actuated Electronic Unit Injector) systems using our advanced Carbon Zapp MTBR test platf...

🏆 Winners!We are proud to announce that Diesel Engineering Services has won the Local Enterprise Award for Cavan 2026 – ...
07/03/2026

🏆 Winners!

We are proud to announce that Diesel Engineering Services has won the Local Enterprise Award for Cavan 2026 – Best Exporter.

The awards took place on 5th March at the IKON in Kingscourt, celebrating the achievements of businesses across County Cavan.

Winning this award is a huge honour for our team and reflects the hard work, dedication, and expertise that goes into everything we do. Over the past few years, we’ve focused on growing our international presence and delivering high-quality fuel systems solutions to customers around the world.

A big thank you to our incredible team, our customers, our partners, and Local Enterprise Office Cavan for their continued support.

We’re proud to represent Cavan engineering on a global stage 🌍

ExportSuccess TeamAchievement

24/12/2025
At Diesel Engineering Services, we don’t just look after fuel system components like pumps and injectors. We look after ...
06/12/2025

At Diesel Engineering Services, we don’t just look after fuel system components like pumps and injectors. We look after your vehicle too! Get your car or van winter ready with everything from maintenance servicing to replacement bulbs, brakes, NCT and DOE check ups.
Call us today on 0429669256 to book your vehicle in for a winter check up.

30/11/2025

The Christmas and New Years holiday period is almost upon us. We would like to inform our customers and suppliers of our opening/closing hours for the holiday period. They are as follows:Monday 22nd of December - 08:00 to 17:30 Tuesday 23rd December - 08:00 to 13:00Wednesday 24th of December through...

New and exclusive! Our new Carbon Zapp MBTR test bench which provides comprehensive testing for all major brands of pump...
16/10/2025

New and exclusive! Our new Carbon Zapp MBTR test bench which provides comprehensive testing for all major brands of pumps and injectors which includes Authorised testing and repair for Continental injectors and pumps, Caterpillar C9 and HEUI, Caterpillar Commonrail pumps, Isuzu Trooper HEUI, Cummins XPI injectors with coding and much more. Carbon Zapp Continental

New website online! Check out our full range of products and services at www.des.ie
23/08/2025

New website online! Check out our full range of products and services at www.des.ie

Ireland’s leading diesel fuel injection specialists. Manufacturer-authorised repairs for Bosch, Continental Delphi, Denso, Zexel, Stanadyne and more. Diesel pump and injector testing, pump and injector repair, turbo repair, vehicle servicing, repair and diagnostics.

It’s almost that time again. We are busy getting ready for the Auto Trade and CV Workshop Expo at RDS Simmonscourt. We w...
01/10/2024

It’s almost that time again. We are busy getting ready for the Auto Trade and CV Workshop Expo at RDS Simmonscourt. We will be located at stall U-03 between the Auto Trade and CV Workshop sections. Visit us for a chat and some free goodies on Saturday 13th and Sunday 14th of October.

Hartridge CRI-Pro. The latest technology for Delphi diesel fuel injector testing and reconditioning ...
05/07/2024

Hartridge CRI-Pro. The latest technology for Delphi diesel fuel injector testing and reconditioning

Address

Bailieborough Road
Shercock

Opening Hours

Monday 8am - 5:30pm
Tuesday 8am - 5:30pm
Wednesday 8am - 5:30pm
Thursday 8am - 5:30pm
Friday 8am - 5:30pm

Telephone

(042) 9669256

Website

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