P-AX15-4121-P-N (Axle)

AL-KO Braked Trailer Axle - 1500kg (A4 Beam, +6° Arm Angle)

Genuine AL-KO braked trailer axle rated to 1500kg, manufactured to European type approval standards and designed for smooth, stable towing performance. This A4 beam axle is supplied complete with AL-KO 2051A brake assemblies and 5-stud 112mm PCD hub drums, making it ideal for medium-duty trailers, caravans, and equipment trailers.

Key Specifications:

• Part Number: P-AX15-4121-P-N
• Brand: AL-KO (premium European axle manufacturer)
• Axle Type: Braked torsion/beam axle
• Capacity: 1500kg
• Beam Type: A4
• Arm Angle: +6° trailing arm angle
• Brake Type: AL-KO 2051A
• Wheel Stud Pattern: 5 × 112mm PCD
• Wheel Studs: M12 × 1.5 thread
• MBC (Mounting Bracket Centres): 1806mm
• OHF (Overall Hub Face): 2265mm
• Hub/Drum: Integrated braked hub drums
• Application: Medium-duty trailers & caravans
• Compliance: ADR-compliant when properly installed

Key Features:

• Genuine AL-KO European Manufactured - Premium quality axle from the industry leader
• 1500kg Capacity - Ideal for medium-duty trailer applications
• Smooth Rubber Torsion Suspension - Maintenance-free, independent wheel suspension
• Pre-Assembled Brake Drums & Hubs - Ready to install, saves time
• AL-KO 2051A Braking System - High-performance 200mm × 50mm brakes
• +6° Arm Angle - Optimized for correct ride height and towing stability
• Heavy-Duty M12 Wheel Studs - Secure wheel mounting
• 5 × 112mm PCD - Standard European wheel bolt pattern
• Precision Alignment - Ensures even tyre wear and stable towing
• Long Service Life - Minimal maintenance required
• Complete Assembly - Includes hubs, drums, and brake assemblies

What is a Braked Axle?

A braked axle is a complete axle assembly that includes integrated brake systems on both wheels. When connected to an overrun brake coupling, the axle's brakes activate automatically when the trailer pushes forward against the tow vehicle during braking. This provides synchronized braking between vehicle and trailer for safe, controlled stopping.

AL-KO Rubber Torsion Suspension:

AL-KO's rubber torsion suspension system provides superior ride quality and durability:

• Independent Wheel Suspension - Each wheel moves independently for smoother ride
• Maintenance-Free - No greasing or adjustment required
• Rubber Torsion Elements - Provide progressive spring rate and damping
• Compact Design - Lower trailer bed height possible
• Reliable Performance - Proven technology used worldwide
• Reduced Road Shock - Protects cargo and trailer structure

+6° Arm Angle Explained:

The +6° trailing arm angle is critical for proper trailer geometry:

• Optimizes ride height for correct towing attitude
• Ensures proper load distribution
• Improves handling and stability
• Reduces tire wear
• Maintains correct suspension geometry under load

The +6° angle is designed for trailers with specific chassis heights and load distributions. Verify this angle is correct for your trailer application.

AL-KO 2051A Brake System:

The integrated AL-KO 2051A brake assemblies provide reliable stopping power:

• 200mm drum diameter × 50mm shoe width
• Mechanical overrun brake operation
• Self-adjusting brake mechanism
• High-quality brake shoes and hardware
• Proven reliability in demanding conditions
• Easy brake adjustment and maintenance

Axle Dimensions:

• MBC (Mounting Bracket Centres): 1806mm - Distance between axle mounting points on chassis
• OHF (Overall Hub Face): 2265mm - Total width from outside of one hub to outside of other hub

These dimensions are critical for proper fitment. Verify your trailer chassis can accommodate these measurements before ordering.

Compatible Applications:

• Brian James trailers requiring 1500kg axles
• Car trailers and transporters
• Box trailers and enclosed trailers
• Camper trailers
• Caravans
• Plant and equipment trailers
• Medium-duty commercial trailers
• Any trailer requiring 1500kg braked axle with 5×112 PCD

What's Included:

• Complete AL-KO axle assembly
• Integrated hub/drum assemblies (both sides)
• AL-KO 2051A brake assemblies (both sides)
• M12 wheel studs pre-installed
• Mounting brackets

Installation Requirements:

Professional installation strongly recommended. Axle installation requires:

• Proper chassis mounting and alignment
• Brake cable connection to overrun coupling
• Wheel bearings (may be pre-installed or sold separately)
• Hub nuts and hardware
• Brake adjustment
• Wheel alignment verification
• Load testing and brake function testing

Compatibility Notes:

Designed for use with:

• AL-KO overrun braking systems
• Mechanical brake cable operation
• 5×112mm PCD trailer wheels
• 155/70R12 or similar tyres (verify load rating)
• AL-KO couplings and running gear

Maintenance:

• Inspect brake operation regularly
• Check wheel bearings and adjust as needed
• Verify brake cable adjustment
• Inspect rubber torsion elements for damage
• Check wheel stud torque periodically
• Lubricate brake mechanisms as per AL-KO specifications
• Replace brake shoes when worn

ADR Compliance:

When installed as part of a compliant trailer braking and suspension system, this AL-KO axle meets Australian Design Rules (ADR) requirements. Professional installation and regular maintenance are essential to maintain compliance and safe operation.

Why Choose Genuine AL-KO Axles:

• European quality and engineering
• Proven reliability worldwide
• Precise manufacturing tolerances
• Comprehensive spare parts availability
• Technical support and documentation
• Maintains trailer warranty and resale value
• ADR compliance when properly installed

Ordering Information:

Sold as complete axle assembly. Verify MBC and OHF dimensions match your trailer chassis before ordering. Professional installation is strongly recommended due to the safety-critical nature of axle and brake systems.

Important Safety Note:

Axles and brake systems are safety-critical components. Improper installation, incorrect specifications, or poor maintenance can result in brake failure, loss of control, and serious accidents. Always use professional installation and follow AL-KO specifications exactly.