Used Truck Fifth Wheel Couplers & Sliding Fifth Wheels

The fifth wheel coupler is the main connection between a tractor unit and semi-trailer. It supports vertical trailer load and locks onto the kingpin, allowing the combination to articulate safely in turns. In this Fifth Wheel Couplers category you will find tested used OEM fifth wheel couplings and sliding fifth wheels with mount plates removed from late-model European trucks in our UK breaker yard and listed with clear photos and honest descriptions.

What fifth wheel couplers we stock

Our stock in the Coupling & Towing > Fifth Wheel Couplers category changes as we dismantle more donor vehicles, but typical items include:

• fixed fifth wheel couplers with standard mounting height, used on tractor units working with a single trailer type;
• sliding fifth wheels (for example JOST sliding fifth wheels) with integrated slider rails or separate mount plates to adjust kingpin position and load distribution;
• fifth wheel couplers with mount plates supplied as a complete assembly, ready to bolt to the chassis;
• locking mechanisms and top plates where fifth wheels are removed with their jaws, release handles and adjustment hardware intact;
• other fifth wheel variants taken from our donor trucks that do not fit into a narrower subcategory.

Each listing shows the actual fifth wheel assembly you will receive, with close-up photos of the top plate, jaws, release handle, slider rails, mounting holes and any visible OEM part numbers. This makes it easier to compare the coupler to your existing unit and confirm configuration and mounting style before ordering.

Truck brands & typical applications

Most fifth wheel couplers we supply come from mainstream European heavy trucks such as Volvo FH/FM, MAN TGX/TGS, DAF CF/XF, Scania R/S and Mercedes-Benz Actros, Arocs and Atego. VRA Truckparts focuses on modern Euro 5–Euro 6 donor vehicles sourced in the UK and dismantled at our yard in Stanford-le-Hope, Essex, supplying tested used OEM coupling components to fleets, workshops and owner-drivers across the UK and EU.

Typical applications include replacing a worn or damaged fifth wheel on a high-mileage tractor unit, upgrading from a fixed to a sliding fifth wheel for better load distribution, or fitting a complete used coupler and mount plate when building or converting a tractor. Using genuine used OEM fifth wheel couplers helps maintain correct load ratings, mounting dimensions and safety standards compared with unbranded alternatives.

Tested used OEM fifth wheel couplers from dismantled trucks

Before any fifth wheel is added to stock, it is removed carefully during our structured dismantling process. Couplers are visually inspected for cracks, heavy wear on the top plate, damaged locking jaws and distorted mounting plates or slider rails. Moving parts are checked for free operation of the lock and release mechanism. Units that do not meet our standards are set aside rather than listed for sale.

Because all fifth wheel couplers come directly from trucks we dismantle ourselves, we can usually provide donor information such as make, model, chassis type and Euro class, together with OEM part numbers and casting references shown in the photos. This transparency helps workshops and fleet operators match the correct fifth wheel to their vehicle and trailer fleet and avoid compatibility issues.

Shipping, returns and checking compatibility

Fifth wheel couplers and mount plates are heavy assemblies, so we pack them securely and normally ship them on pallets or in reinforced crates to protect mounting faces and mechanisms during transit. Orders are dispatched quickly from our Essex yard with tracked delivery options across the UK and EU, and most units include a 30-day returns period so you can fit and inspect them on the vehicle with confidence.

If you are unsure whether a particular fifth wheel will suit your tractor and trailers, contact VRA Truckparts with your registration, VIN and photos or part numbers from your existing coupler. Our team will help you confirm mounting height, bolt pattern, slider type and kingpin size or suggest suitable alternatives within the Fifth Wheel Couplers range. You can also browse the main Coupling & Towing category and the Other Coupling & Towing section to find related towing components.