Pedders Heavy Duty Load Carrying and Towing AHC Suspension Conversion Kit

This kit replaces the original hydraulic Automatic Height Control (AHC) suspension system on Toyota LandCruiser Amazon / 100 Series models. It provides a durable, cost-effective solution for owners needing reliable load and towing performance with improved suspension consistency.

Key Features

• Complete AHC replacement with coil springs and torsion bars
• Designed for heavy-duty load carrying and towing applications
• Includes front torsion bars, reinforced mounting plates, rear coil springs, and shocks
• Multiple variants for standard, lift, and heavy-duty requirements
• Instructions provided to disable AHC system and prevent warning lights
• Engineered as a fully integrated suspension system
• 2-Year / 25,000-Mile warranty coverage

Product Overview

The Pedders AHC Suspension Conversion Kit replaces the original Toyota hydraulic height control system with a traditional coil spring and torsion bar setup tailored for the FZJ and UZJ100 independent front suspension platforms. The kit enhances reliability by removing complex hydraulic components that are prone to failure with age while maintaining suitable ride comfort and load-handling characteristics.

Available in several configurations, the kit suits light to heavy load and towing demands. Lift options provide approximately 2 inches of additional clearance where required. Ride comfort may be firmer than the original AHC "comfort" mode but generally improves over worn factory setups. Wheel compatibility is broad with height measurements referenced on 16-inch wheels.

Technology & Materials

This conversion kit integrates traditional coil springs and torsion bars with reinforced mounting plates and quality shock absorbers. By replacing the hydraulic spheres and fluid components used in the original AHC system, the kit offers a mechanically simpler and more robust suspension solution designed for heavy-duty applications.

Installation & Compatibility

The kit includes all necessary components front torsion bars, mounting plates, rear coils, and shocks along with detailed instructions to disable the existing AHC system properly. It is engineered as a bolt-in replacement for the original suspension and is compatible with all wheel sizes. Professional wheel alignment after installation is recommended to optimise handling and tyre wear.

The heavy-duty kit variant is specifically intended for frequent heavy load carrying and towing, offering enhanced durability and control under increased forces.

Technical Specification

• Fitment: Toyota LandCruiser Amazon / 100 Series 4.5 Petrol & 4.2 Diesel
• Front height: Adjustable (measured with 16-inch wheels)
• Rear height: Approx. 805 mm (based on 16-inch wheels)
• Variants include standard conversion, lift kits, and heavy-duty options with or without rear spring lift (~2 inches)
• Includes front torsion bars and reinforced mounting plates
• Packaged with rear coil springs and front and rear shock absorbers
• Instructions to disable AHC system to prevent warning lights

Note: Vehicle height may vary due to factors such as wheel size and load. Correct measuring procedures should be followed as per manufacturer instructions.

Why Choose Pedders

• Proven, fully integrated replacement system engineered for the LandCruiser 100 Series
• Solutions tailored for light and heavy load applications including towing
• Comprehensive kit including all necessary hardware and instructions
• Supported by a 2-Year / 25,000-Mile warranty for peace of mind