Used Truck Camshafts & Tappets, OEM Engine Parts for HGVs

Used truck Camshafts & Tappets

Camshafts & Tappets are key valve train components inside a lorry or HGV engine. The camshaft controls the opening and closing of the inlet and exhaust valves in time with the crankshaft, while tappets, followers or related valve train parts transfer cam movement through the engine’s valve gear. On modern commercial vehicle engines, correct camshaft profile, timing gear alignment, bearing journal condition and part number matching are critical. A wrong or worn component can affect compression, emissions performance, fuel economy, engine braking behaviour and general engine running.

VRA Truckparts lists used OEM Camshafts & Tappets removed from dismantled commercial vehicles, with stock changing according to the donor trucks we process. Current examples in this category may include genuine MAN engine camshafts such as a MAN TGX/TGS camshaft for the D2676 Euro 6 engine, listed with references including 51044011023, 51.04401-1023 and 51044015089. Each listing should be checked carefully for the supplied photos, visible condition, OEM numbers, engine application and donor vehicle notes, as availability in Camshafts & Tappets can be limited and part variations are important.

What you will find in the Camshafts & Tappets category

This category covers used engine valve train parts for trucks, lorries and HGVs. Because these are used OEM components, the exact selection depends on the commercial vehicles being dismantled at the time. Listings may include individual shafts, associated valve train parts or related components where they are suitable for resale and identification.

• Used truck camshafts for diesel engine applications, including timing gear or drive components where shown in the listing photos.
• OEM camshaft assemblies removed from donor engines and advertised with available manufacturer references.
• Tappets, followers and valve train parts when available, normally requiring careful comparison with the original engine components.
• MAN TGX and MAN TGS engine camshafts when dismantled from compatible donor vehicles, including D2676 Euro 6 examples where stocked.
• Camshaft parts with visible bearing journals, lobes, machined faces and fitted gear details shown in the photos where available.
• Engine-specific used OEM parts that must be matched by engine code, Euro standard and OEM reference rather than by vehicle model alone.

Truck brands & typical applications

Camshafts & Tappets are highly engine-specific. In this category, supported examples include MAN TGX/TGS applications, particularly D2676 Euro 6 camshaft references such as 51044011023, 51.04401-1023 and 51044015089 when listed. Other European truck engine applications may appear depending on dismantling stock, but buyers should never assume interchangeability without checking the listing details.

• MAN TGX engine camshafts and valve train parts when available from donor vehicles.
• MAN TGS applications where the OEM number, engine type and Euro standard match.
• MAN D2676 Euro 6 camshaft examples where listed with the correct part references.
• Commercial vehicle diesel engines where correct timing, lubrication and valve operation depend on accurate component matching.
• Fleet and workshop replacement work where a genuine used OEM part is being used to replace a damaged, worn or incorrectly supplied component.

Why Camshafts & Tappets matters

The camshaft is one of the most important mechanical timing components in an HGV engine. Its lobes control valve lift and duration, so wear, damage or incorrect specification can change how the engine breathes. In a modern Euro 6 truck engine, valve timing also interacts with emissions control strategy, exhaust gas flow, turbo performance and engine management. Tappets and followers must also maintain the correct contact pattern and clearance, otherwise the valve gear can become noisy, inefficient or damaged.

For workshops and fleet operators, choosing the correct Camshafts & Tappets parts helps avoid repeat labour, poor starting, misfire symptoms, low power complaints and unexpected downtime. A used OEM camshaft that matches the original reference can be a practical option when the existing shaft is damaged, when an engine is being rebuilt, or when a replacement part is needed to keep an older vehicle in service. The main task is accurate identification: part number, engine variant and visual details must all line up before purchase.

Typical reasons to replace Camshafts & Tappets

Camshaft and tappet failure can be caused by wear, lubrication issues, engine contamination or damage during major repair work. Some faults are visible once the rocker cover or cylinder head components are removed, while others are found during engine strip-down.

• Scored, pitted or worn camshaft lobes causing poor valve lift or noisy valve train operation.
• Damaged or worn bearing journals, especially where lubrication problems have affected oil film protection.
• Broken, chipped or damaged timing gear teeth where the camshaft drive has suffered impact or mechanical failure.
• Incorrect camshaft fitted previously, leading to mismatch with the engine code, Euro standard or timing arrangement.
• Worn tappets, followers or contact faces causing clicking, knocking or uneven valve gear operation.
• Engine rebuild requirements after internal failure, oil starvation, contamination or cylinder head repair.
• Need to replace a missing or damaged OEM part during donor engine rebuilds or workshop repairs.

How to choose the correct Camshafts & Tappets

Camshafts & Tappets should be bought by exact identification, not by appearance alone. Many truck engines have multiple camshaft versions across different power ratings, emission standards and production years. Even within one model range, such as MAN TGX/TGS, the engine code and OEM reference can be more important than the vehicle name.

• Check the truck make, model and generation, such as MAN TGX or MAN TGS where relevant.
• Confirm the engine type and engine code, for example MAN D2676 on applicable Euro 6 vehicles.
• Match the Euro or emission standard, as Euro 5 and Euro 6 parts may differ.
• Compare the OEM number and part references, such as 51044011023, 51.04401-1023 or 51044015089 where shown.
• Check the timing gear, end profile and drive arrangement against your removed part.
• Inspect the listing photos for lobes, journals, machined surfaces and included components.
• Confirm whether the listing includes only the camshaft or any related tappets, gears or fittings shown.
• Use donor vehicle information, engine details and visible markings to avoid ordering a part from the wrong variant.

If you are not certain, compare your old part with the listing photos and references before ordering. Our guides on how to find the right truck part and compatibility and VIN checks explain what information is most useful when matching used OEM truck parts. Sending a registration, VIN, engine code, OEM number and photos of the removed part can help avoid costly delays.

Used OEM parts from dismantled trucks

VRA Truckparts specialises in used genuine OEM truck parts from dismantled commercial vehicles. Camshafts & Tappets are removed from donor vehicles and engines, photographed and listed with available references where possible. The product description and photos are important: they show what is included, what condition details are visible and which part numbers have been recorded.

Used engine components are selected and handled with care, but buyers should still treat every listing as a specific used part rather than a universal replacement. Visual checks may include the straightness of the shaft, appearance of machined bearing journals, timing gear presence, visible lobe surfaces and obvious damage. Where a product has been removed from a running donor vehicle or checked before dismantling, that detail will be stated in the individual listing. You can read more about our dismantling and quality process for general information on how used truck parts are removed, identified and prepared for sale.

Related engine parts and buying support

Camshafts & Tappets sit within the wider Engines & Components area, so workshops often check related parts at the same time, especially during cylinder head work, timing repairs or engine rebuilds. Depending on current stock, related parts may include cylinder heads, rocker covers, timing components, oil system parts, engine brackets, sensors and complete used engine components. Because available category links can change, the safest route is to search by OEM number or ask for help if you are trying to match several parts from the same engine.

For trade buyers, accuracy matters more than speed when buying Camshafts & Tappets. If the old component has a readable number, use that as the starting point. If the number is missing, compare the donor truck details, engine family, production year, Euro standard and every visible feature in the photos. Our team can support part identification where enough information is supplied.

Delivery, payment & returns

Before placing an order for Camshafts & Tappets, read the listing condition notes and check that the part shown is the part you require. Engine valve train components can be heavy, delicate and expensive to replace if incorrectly identified, so keep your old part available for comparison until the replacement has been checked by your technician.

Useful customer information is available in our sections on delivery and shipping, payment and VAT, warranty and part condition and returns and refunds. These pages explain the ordering process and support available for used OEM truck parts without assuming compatibility. If you are unsure about a Camshafts & Tappets listing, contact us with the OEM reference, VIN or registration and clear photos before purchase.