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Engines

Truck Engines

At MW Truck Parts, we specialise in the supply of high-quality used truck engines, carefully sourced from trusted suppliers and rigorously tested to ensure reliability, value, and long-term performance. We do not manufacture or recondition engines; instead, our focus is on supplying well-maintained, proven engines that have been properly looked after and represent a significantly more cost-effective alternative to rebuilt units.

Our stock regularly includes Iveco Truck Engine options, alongside Mercedes Truck Engines and DAF Truck Engines, all selected based on known history, sensible mileage, and overall condition. Wherever possible, engines are run and tested while still installed in the vehicle, allowing us to confirm smooth operation, accurate mileage, absence of excessive smoke or breathing, and that no engine management warning lights are present.

For operators running Scandinavian or German-built vehicles, we also supply Volvo Truck Engines, Perkins Phaser Engines and MAN Truck Engines that meet strict selection criteria. This in-vehicle testing approach is particularly important for modern electronically controlled engines, which cannot be accurately assessed on the floor without specialist and costly test- bed equipment.

We work exclusively with trusted suppliers, and even then, only a small proportion of engines offered to us meet our standards. It is not uncommon for multiple engines to be assessed from several vehicles, with only one or two being suitable for sale. This ensures the engines we supply have not been heavily interfered with, rebuilt using mixed components, or fitted with substandard parts.

In addition to mainstream truck engines, we can also source specialist units such as Perkins Phaser engines for auxiliary and industrial applications, selected using the same careful sourcing and inspection process.

If you are looking for a proven used engine that has been realistically tested, sensibly sourced, and honestly represented, MW Truck Parts can help. Contact our team to discuss availability and find the right engine for your vehicle.

Find Out Answers Here

Replacement truck engines are commonly supplied as quality used units, with availability depending on make, model, and engine code. At MW Truck Parts, we focus on engines where we can provide strong confidence in compatibility and supply — often low to average mileage used engines that have been run, checked, and sourced with known vehicle history where possible. Many customers prefer a good used engine because it remains original, avoids unknown internal rebuild quality, and can offer excellent value versus reconditioned alternatives. The best choice depends on matching the correct engine code and specification for your vehicle, and we can help guide you through the key checks.
To confirm engine compatibility, start with your truck’s make, model, year, and the original engine code. Where possible, an OEM reference or VIN/registration helps confirm the correct match. It’s also important to consider mounting points, transmission pairing, and emission- related requirements, as these can differ between versions. Because engines are major truck parts, correct selection helps avoid delays, extra labour costs, and unnecessary downtime. If you’re unsure which details matter most, our team can guide you on what to check so you can order confidently and reduce the risk of incorrect or incomplete engine supply.
Many customers ask about reconditioned engines, but in practice a good-quality used engine with known history can be the better option. A used engine is often significantly cheaper, remains original, and avoids the risk of mixed-quality non-OEM internal parts sometimes used in rebuilds. We focus on supplying engines we can stand behind from a sourcing and compatibility perspective, with checks completed where possible. If you share your vehicle details and engine code, we’ll advise the most suitable replacement route based on availability, budget, and application.
Truck engine replacement is a complex job and, for most operators, professional installation is the safest route. A truck engine involves connections to cooling, fuel, electrical systems, exhaust routing, and drivetrain components, and correct fitment reduces the risk of fault codes or performance issues. Because an engine is one of the most important truck parts on the vehicle, a qualified commercial vehicle technician is usually best placed to handle installation and testing. If you’re experienced and properly equipped, you may manage the work in-house, but careful installation and checks are essential.
Before buying, confirm the engine code and spec, and ask what is included (for example ECU or ancillaries if listed). Where available, it’s also sensible to confirm engine origin and history, and whether the unit has been run or checked prior to dispatch. You should also consider mileage, previous application, and how the engine was maintained in its original vehicle. A quality used engine with known history often offers better value than a reconditioned alternative, as it remains original and avoids the risk of mixed-quality internal parts. Clarifying what testing has been carried out helps set realistic expectations and supports a smoother installation process.
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