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4000 Series Portal

Overview
4000 Series Portal

The AxleTech 4000 Series family of portal steer/rigid axles are engineered to meet the increasing demands of the 4x4 high mobility tactical, forestry, and municipal truck. This axle has vocationally dependent axle load ratings from 6,600 lb (3,000 kg) to 11,023 lb (5,000 kg). 

A wide range of overall axle ratios, load capacities, vehicle mountings, carrier offsets, and brakes for performance characteristics are available to match your specific vehicle installation requirements. An overall axle ratio range from 4.34 - 7.89 offering maximum flexibility to meet your desired performance and optimize the vehicle performance. 

Multiple axle options include many features to permit optimization of this axle family to customize the axle for your specific vocational requirements. Carrier pinion angle may be varied up to 6 degrees inclination to matchspecific driveline angle requirements for the shorter wheelbase vehicle installations. 

Outboard mounted brake drums have been designed to permit easier serviceability without requiring the portal reduction to be disassembled to perform normal brake maintenance. Spring applied air chambers maybe selected on air actuated wedge brakes to provide vehicle parking at wheels. A central tire inflation option is available for those vehicles demanding increased floatation in the various rugged off-road vocational duty cycles. Carrier differential options include air actuated differential lock, LSD a wide range of input flange sizes and styles. Multiple axle pad mounting styles are available with location flexibility on the high strength cast steel axle housing design.