Description

Overview

Jost 37 C Turntable Jaw & Wear Ring Repair Kit supports service replacement of key locking and wear components on JOST JSK 37 C-Z fifth wheel couplings. It helps restore consistent coupling feel and positive jaw engagement after normal wear.

Features

This kit targets the jaw and wear ring components that commonly wear during day to day coupling cycles. It also lets you refresh the locking action without replacing the complete fifth wheel assembly when the base coupling remains serviceable.

• Replaces the lock jaw wear components to maintain secure coupling
• Refreshes the wearing ring contact surface for smoother articulation
• Includes lubrication tube and grease to support correct reassembly
• Supports preventative maintenance programs for fleet uptime

Specifications and Materials

Part number: TT8870.
This repair kit includes a lock jaw, lock jaw spring, pivot for the lock jaw, lubrication tube, wearing ring, head bolts, and grease. It is intended for maintenance work on compatible JSK 37 C-Z couplings rather than structural repair of the fifth wheel casting. Use the JOST JSK 37 C-Z product flyer to confirm coupling series details and service context

Compatibility and Fitment

This repair kit suits JOST JSK 37 C-Z fifth wheel couplings. JSK 37 couplings exist in multiple variants, so verify the coupling type plate and lubrication arrangement before installation. 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. SK3221/50Z, SK322150Z, SK 3221-50 Z

Compliance and Safety

Fifth wheel components affect towing safety, so trained personnel should carry out installation and inspection. Follow the OEM procedure, apply lubricant as specified, then complete a functional coupling test with a king pin before returning the vehicle to service. If inspection shows other worn locking parts, replace them as well, otherwise the benefit of the kit may be reduced.

Trailer Applications

Jost 37 C Turntable Jaw & Wear Ring Repair Kit suits prime mover and trailer combinations used in general freight, tankers, fridge vans, B-doubles, and road train work where a JSK 37 C-Z coupling is fitted. Workshops often fit it during scheduled servicing to keep coupling effort predictable and to reduce avoidable wear.

Cross-reference and Suitability

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

Confirm the coupling variant before ordering if your fleet runs mixed JSK series couplings.

Why Choose ICS Trailers

ICS Trailers can help you match turntable service parts to your coupling model and application. You also get practical product support and fast dispatch for workshop and fleet maintenance needs. Browse Turntables at ICS Trailers using Browse Turntables at ICS Trailers to see related turntable service parts