Description

Overview

The Jost JSK 36 Adjusting Screw 50mm helps you restore correct wear adjustment on JSK 36 CV fifth wheel couplings during service. It supports consistent locking action when you inspect or rebuild the coupling. Instead of replacing an assembly, you can renew this adjuster when threads strip or corrosion seizes the mechanism.

Features

The Jost JSK 36 Adjusting Screw 50mm is a direct replacement component for the JSK 36 CV adjustment system. As a result, it helps workshops return the locking mechanism to a reliable setting after wear checks.

• Supports wear adjustment during routine maintenance
• Designed for the JSK 36 CV fifth wheel coupling assembly
• Helps maintain consistent jaw engagement over time
• Ideal when replacing damaged or seized adjuster hardware

Specifications and Materials

This adjusting screw suits the 2-inch JSK 36 CV fifth wheel coupling platform as shown in Jost parts documentation. Jost lists the component as an adjusting screw within the JSK 36 CV spare parts diagram.
Part number: TT8839G.
Use the Jost Australia JSK 36 CV technical sheet document for official component identification
Follow the correct mounting and operating procedure for your coupling version, because installation and inspection steps can vary between setups.

Compatibility and Fitment

Confirm your coupling model as JSK 36 CV before ordering because similar fifth wheel families use different adjustment components. Also confirm your setup uses the 2-inch kingpin size, often referred to as 50mm, because that detail drives the coupling parts list. This cross-reference listing means this part is a suitable replacement for the part numbers and applications shown. Some changes in installation may be required. SK2121/76, SK 2121-76, SK212176

Compliance and Safety

Only trained technicians should adjust fifth wheel locking components because incorrect settings can prevent full kingpin engagement. Inspect the coupling for wear limits and damage, then replace any related parts that fail inspection. Complete a functional coupling and uncoupling check before returning the vehicle to service.

Trailer Applications

The Jost JSK 36 Adjusting Screw 50mm is used on prime movers running 2-inch fifth wheel couplings across common heavy trailer tasks, so it suits many service schedules. It supports the tractor to trailer connection point where consistent locking performance matters.

• General freight and linehaul
• Tanker and bulk transport
• Refrigerated van work
• B-double and road train combinations

Cross-reference and Suitability

This part cross-references to or suits the following equivalent part numbers and compatible alternatives:

Match the part number and the coupling model before installation to avoid downtime.

Why Choose ICS Trailers

ICS Trailers helps you source the right heavy vehicle trailer parts and provides practical selection support for towing components. You can also plan preventative maintenance with service-focused items rather than reacting to failures.

• Knowledgeable parts support for fitment checks
• Range matched to coupling and trailer service work
• Quality-focused supply for workshop maintenance

Browse Tow Couplings at ICS Trailers to find related tow coupling parts and service items