Welham Diesel Injection Co.Ltd

We at Welham Diesel Injection Co.Ltd are a specialist company who are able to undertake all types of repairs on fuel pumps and injectors for almost any diesel engine, classic or modern. We offer vehicle diagnostic work too. Since we were first established in 1964, we have gained an excellent reputation locally and across the UK for our work and most customers have told us they would highly recommend us to their friends and colleagues. In fact a lot of our work comes from recommendations and repeat work. Another of our specialities is vintage tractor fuel work, we attend several tractor shows throughout the year and get a lot of business from them.

So if your diesel car or van is difficult to start or if the engine management light is on or if your vehicle is misfiring or suffering from poor running – then we are the company for you! We were originally formed as an offshoot of Welham Motor Company our sister company who specialises in engine rebuilds, as well as crankshaft regrinding, line boring, cylinder head crack testing and associated services. We share the same premises and ownership as the Motor Company and pride ourselves on our wealth of knowledge and experience we have accumulated over the years, not to mention our excellent eye for detail that we have developed. Quite a lot of our team have been with the group for more than 30 years!

We have a fully equipped workshop at our base here in Leicestershire where we can test and rebuild your vehicle’s fuel pumps & injectors we can even supply new units at reasonable prices. Our speciality is Delphi and Bosch systems however we do carry out repairs on most other makes including CAV, Simms and Stanadyne. So no matter if your have a classic / vintage vehicle or a modern family car – we can help! We also carry in stock a wide range of fuel pumps and injectors and we can obtain most non-stock items within 48 hours.

We have full diagnostic facilities and a garage unit next to the main building where we can work on vehicles using the Delphi Diamand system. All of our facilities have recently been upgraded to meet Delphi’s standards and our team are Delphi, Siemens and Bosch trained.

Please do not hesitate to get in contact with us for further information on any of our services – we would love to hear from you! Or you can visit our social media page to hear about our latest projects, news and deals.

Opening Hours


08:00 - 17:00


08:00 - 17:00


08:00 - 17:00


08:00 - 17:00


08:00 - 16:00