AL‑KO 3,500 kg Fixed Coupling with Brake Lever – 50 mm Ball | Zinc-Plated

 Overview

This AL‑KO 3,500 kg Fixed Coupling (Part 614010PL) is designed for use with 50 mm tow balls and trailers rated up to 3,500 kg. Featuring a built-in brake lever, this coupling is ideal for installations without an over‑run braking system. Constructed from zinc-plated steel for durability and ease of use, it's a trusted choice for unbraked or electric-brake trailer setups. 

✅ Key Features

• 3,500 kg ADR rating — suitable for most light trailer applications

• Brake lever built-in for manual engagement when the trailer has no override system 

• Zinc-plated finish for corrosion resistance in marine or road use 

• Four-hole mounting pattern: 182.5 mm × 55 mm, compatible with standard drawbar plates 

• No lock included (non‑lockable version) offers clean, simple operation

 Technical Specifications

 Applications

• Ideal for non‑override brake trailers (e.g., electric or drum brake configurations)

• Suitable for boat trailers, caravans, camping trailers, and caravans under 3,500 kg

• A simple replacement coupling for standard 4‑hole 50 mm mount setups

• Great for retrofit or OEM applications with manual parking brake control

 Why Choose This Coupling?

Built by AL‑KO to Australian ADR standards, this fixed coupling offers robust performance without complexity. The integrated brake lever allows manual braking when needed, eliminating the need for over-run systems. Its corrosion-resistant finish and simple snap-on fit make it a reliable choice for trailer users. 

 Installation Tips

1. Confirm your drawbar plate matches the 182.5 × 55 mm hole pattern.

2. Secure using M12 bolts with lock washers—or nyloc nuts.

3. Ensure the lever fully engages and disengages with the tow ball.

4. Regularly inspect for corrosion, latch wear, and mounting integrity.