P-COOV-0056-P-N
P-COOV-0056-P-N
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Email parts@brianjamestrailers.co.uk with your trailer VIN number before placing your order and we'll confirm compatibility and/or SKU code for you.
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Genuine AL-KO 251S overrun brake coupling assembly designed for Brian James trailers. This precision-engineered mechanical coupling provides automatic braking when the trailer pushes against the tow vehicle during deceleration, ensuring safe, controlled stopping.
Key Specifications:
- Model: AL-KO 251S Overrun Brake Assembly
- Coupling Head: AK301 (fits standard 50mm tow balls)
- Capacity: Suitable for trailers 1500–2700kg ATM
- Part Number: P-COOV-0056-P-N
- Mounting: Top or bottom of V-drawbar
How Overrun Brakes Work:
When you slow down or brake, the trailer's momentum causes it to push forward against the coupling. This activates the mechanical linkage inside the coupling, which pulls the brake cables and applies the trailer's brakes automatically. The harder you brake, the more braking force is applied to the trailer – providing smooth, proportional braking without requiring electric brake controllers.
Features:
- Automatic mechanical brake actuation – no controller needed
- Proportional braking based on deceleration force
- Fits standard 50mm tow balls (AK301 coupling head)
- Robust construction for Australian conditions
- Compatible with AL-KO mechanical drum brake systems
- Suitable for top or bottom drawbar mounting
Brake System Compatibility:
Works with AL-KO mechanical drum brake systems including:
- AL-KO 1637 (160mm drums)
- AL-KO 2051 (200mm drums)
- AL-KO 2361 (230mm drums)
- Other AL-KO mechanical brake systems when properly configured
Important Notes:
- Security clamp or lock sold separately (recommended for theft prevention)
- Professional installation and adjustment required
- Must be properly adjusted for correct brake cable tension
- Regular maintenance and lubrication required for optimal performance
Why Choose Genuine AL-KO Couplings:
The coupling is the critical link between your vehicle and trailer, and it controls your trailer's braking. Genuine AL-KO couplings are precision-engineered to provide reliable, consistent braking performance. Inferior aftermarket couplings can result in poor braking, premature wear, and safety issues.
Installation Note: Professional installation strongly recommended. Requires proper adjustment of brake cable tension, damper settings, and coupling height. Must comply with Australian trailer regulations.