injector pumps

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We can supply fully reconditioned injection pumps and injectors for most Unimog models and other Mercedes trucks with the Bosch injection system.

A properly set up injection system gives cleaner burning, less smoke & more power.

For additional cost injection pumps can often be recalibrated to produce an increase on the standard power output. For optimum benefit we recommend changing the injectors at the same time as the injection pump. A set of 6 injectors typically costs £360+VAT.

We have a dedicated diesel injection workshop with a genuine Bosch test equipment to ensure that all reconditioning and recalibration is carried out to the same standards as original.

When refitting an injection pump it is necessary to check the timing of the engine and to carry out some fine adjustments to optimise the results.

For optimum results we recommend that all power upgrades are carried out in our workshop as some symptoms can be misdiagnosed by inexperienced mechanics.

The procedure we follow includes:

-Test drive vehicle.
-Thorough check over of engine including turbo, air pipe work, fuel lines etc.
-Adjust valve clearances as necessary.
-Check and adjust timing.
-Remove & test injectors.
-External check of injection pump and throttle linkage.
-Compression test engine.

We can supply some injection pumps & all injectors on an exchange basis. We apply a surcharge to the invoice which is refunded upon receipt of old units for reconditioning.

When we do not have a suitable pump in stock we can recondition your own pump. The turnaround time is usually 1-2 weeks but this will depend on the condition of the pump and any parts which must be ordered.

We offer other power upgrade options including turbo conversion kits & intercooler kits.

We can arrange reasonably priced delivery of all spares by courier within the UK.

For overseas buyers delivery can be arranged by airfreight or for heavier, bulky items sea freight provides an economical alternative.

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Operating for36 Years

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Exported to150 Countries

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What Our Customers Say

I couldn't recommend Simon and the team highly enough, they sorted all transportation and took all the stress out of the situation. A1 service guys, thank you

Nick & Martin

Apex Tree Surgeons

"Atkinson Vos know what they are talking about and offer great advice whenever you need it. They are always ready to help at the end of a phone line too."

Gerard Bredenoord

"Brilliant company to deal with and a really helpful group of people who know what they are talking about."

Ben Mauger

"First contact with Atkinson Vos became a success, smooth ordering parts, great prices, great support. Fully satisfied customer from Sweden."

Lars-Erik Bammis Ohlsson

When I bought my U1000 “Rustbucket” , Simon gave me a fair & frank appraisal of its condition. The mog was cleaned and shipped professionally with no issues upon landing here in Australia. Since then, AV has provided me with excellent spares support and the occasional bit of advice. Posting was always prompt and economical via Royal Mail – this has taken a lot of the pain out of restoration. Highly recommended.


Atkinson Vos not only supplied my Unimog some years ago but they have been ever present when I needed any advice or assistance. My Unimog recently underwent a full refurbishment in their workshop and I have to say the result has been nothing short of superb. My Moggy is not only in great mechanical shape but it looks great too. Top marks Atkinson Vos.

James Mc Donnell, Ireland

Whenever I drive my MOG on to their yard, I have a feeling of excitement about the opportunities for upgrade and improvement that Atkinson Vos offers. Anything is possible, and everything is done to a very high standard!. Atkinson Vos prepared my Unimog to an excellent standard. Their aftersales service is great too.


Hi Simon, The shims arrived last week. My unimog is now running perfectly! Thank you a lot for the excellent service, I really appreciate it!

Casper Hanekamp

We have been using Atkinson Vos for a number of years now, they have carried out some upgrades and all servicing and repairs, their staff are friendly and always willing to help. The workshop guys always offer advice and easy fix solutions over the phone and on the odd occasion visited our workshop to view and inspect the vehicle. I would not hesitate to recommend the company, Thanks to all the staff.

Chris Brayne

Super Rod Ltd

I have waited many years to start my expedition RV project and the team at Atkinson Vos has helped to bring this to fruition. Appreciated the quick responses to the myriad of questions I had additionally the support from build to delivery state side. Many thanks to the entire team at AV.

Mike Greenberg

"We have always prided ourselves with finding the best qualified people available, be they doctors, lawyers, engineers, or whomever. We applied the same process to finding our dream Mog Expedition Camper and have not been disappointed with Atkinson Vos. Paul and Emma both have done superb jobs answering our many questions and leading us through the purchasing / export / import process. Based on their performance to date, we are confident Atkinson Vos support will be there in the future where ever our travels may take us.”

Mary & J R Argo

"Paul, Simon, Mark and the team, we just wanted to say a massive thank you to you all, what a firm. We couldn’t recommend you all highly enough, from the friendliness, the efficiency and the quality of the overall product. Absolutely 1st class, and we will be looking forward to working with you again on future projects, thank you all again, all the best Danny and nobby."

Danny Clarke

Danny Clarke Building Services

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