JOST Fifth Wheel Couplers & Towing Parts

Need a genuine JOST fifth wheel or coupling hardware for your tractor unit? This brand page lists tested used OEM JOST coupling parts with clear photos of the exact item you’ll receive, plus references to help you match safely and accurately.

Most JOST items in our stock relate to the tractor–trailer connection: fifth wheel couplers, sliding fifth wheels, mounting plates and related towing components. Because coupling parts are safety-critical, always confirm the OEM/manufacturer number, check markings and compare mounting points before ordering.

• Browse Fifth Wheel Couplers (fixed & sliding fifth wheels, mount plates)
• All Coupling & Towing (towing gear & related hardware)
• Other Coupling & Towing (misc towing components and fittings)

Before purchase, please read our Compatibility & VIN Policy — it explains what information guarantees a correct match and what to check when the part number label is missing.

About JOST coupling parts

JOST components are commonly found on European tractor units where reliability of the coupling system matters every day. A correctly matched fifth wheel helps ensure stable towing, correct load distribution and consistent locking behaviour under real fleet conditions.

What you’ll typically find under JOST on VRA Truckparts

Stock changes as new donor vehicles are dismantled, but JOST listings most often include:

• Sliding fifth wheels (complete coupler on slider rails or as an assembly)
• Fifth wheel couplers with mount plates (ready-to-bolt setups when supplied as pictured)
• Coupling hardware from the towing area (brackets, fittings and related parts when available)

For the full range (including non-JOST options), use Fifth Wheel Couplers and Coupling & Towing.

How to choose the correct JOST fifth wheel (the practical checklist)

• Match the OEM / manufacturer reference: this is the most reliable way to confirm the correct unit.
• Confirm coupling class & markings: safety ratings/markings can differ even when units look similar.
• Check mounting type: bolt pattern, mount plate style, slider rail layout and overall height.
• Verify application: tractor model, chassis setup and intended trailer work (load and kingpin position).
• Compare photos: handle/lock layout, wear pad design and visible casting/plate identifiers.

If you’re unsure, start with Compatibility & VIN Policy and send us your part number + clear photos — that’s the fastest way to avoid a wrong order.

Quality, dismantling and condition notes

We dismantle late-model European trucks and list parts with clear photos and honest condition notes. Our process and grading are explained here: Our Dismantling & Quality Process. You can also check typical donor vehicles we work with on Trucks We Dismantle.

Delivery, returns and warranty

• Delivery & Shipping — UK & EU options
• Returns & Refunds — 30-day returns policy
• Warranty & Part Condition — grading and warranty rules
• How to Order — simple ordering steps

FAQ

Do JOST fifth wheels come “complete”?

Only what you see in the listing photos is included. Some listings are complete assemblies, others are coupler-only or coupler with mount plate.

Can I fit a used fifth wheel without extra checks?

Coupling parts are safety-critical. Always confirm references/markings and use professional installation and inspection procedures appropriate for your fleet/workshop standards.

What’s the best way to confirm compatibility?

Send your OEM/manufacturer number plus photos of the existing unit (label/markings, mounting points, slider/plate area). VIN can help as supporting info.