Description

Overview

The Rockinger 40mm automatic coupling locks compatible drawbar eyes on light trucks, delivery vans and off-road vehicles. Its upward-opening type A hand lever and compact four-bolt flange distinguish it from larger 40mm towing hitches.

Features

• Automatic jaw mechanism secures the towing eye when correctly engaged.
• 100 x 150mm funnel guides the eye into the hitch.
• Type A hand lever opens upwards for uncoupling.
• Four-hole flange has an 83 x 56mm pattern.

Specifications and Materials

Accepts 40mm towing eyes to DIN 74054 / ECE R55 Class S. D-value: 30kN. S-value: 250kg. Mounting holes measure 10.5mm; fitting requires four M10 grade 8.8 bolts and matching self-locking nuts. Fasteners are separate.

Part number: RO243A11000.

For approved variants and technical data, consult the official Rockinger RO243 technical catalogue

Compatibility and Fitment

Check the vehicle crossmember for 83 x 56mm bolt centres, the towing eye for 40mm compatibility and both vehicle and trailer load ratings. Other RO243 variants use 85 x 45mm or 120 x 55mm flanges, so do not substitute by appearance alone.

The following cross-reference numbers identify verified equivalent or replacement parts for this exact application. Confirm the selection-critical fitment details against the part being replaced before fitting.

243 U 115 EN/X3

Related Parts

Check the related service parts below against the trailer setup before ordering.

Compliance and Safety

ECE approval E1 55R-01 0031 identifies this variant. Follow current coupling and vehicle instructions, and confirm Australian road-use suitability. After connecting, ensure the locking handle sits fully home. If it projects, do not tow.

Trailer Applications

The Rockinger 40mm automatic coupling suits compatible commercial drawbar trailers. For centre-axle applications, assess permissible support load alongside D-value before fitting.

Cross-reference and Suitability

This part cross-references to the following verified equivalent or replacement part numbers:

Why Choose ICS Trailers

Related RO243 couplings can share a 40mm mouth yet have different flanges, ratings or lever arrangements. ICS Trailers can compare old coupling markings, bolt centres and lever positions to help select the correct unit. This matters when a worn hitch has lost its identification marking.

• Discuss the coupling pin, end cover and locking components when planning a repair.
• Provide a rear-flange photo and bolt-centre measurements to support a confident match.

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