Hendrickson MAXX22T Trailer Air Disc Brake

Quick Facts

Brand: Hendrickson
Brake Model: MAXX22T
Product Type: Pneumatically operated trailer air disc brake
Brake Position: Trailer axle wheel end
Caliper Design: Lightweight single-piston monobloc caliper
Rotor Diameter: 415 mm
Rotor Mounting: Inboard- or outboard-mounted, depending on configuration
Wheel Sizes: 22.5-inch and 24.5-inch wheels
Standard Brake Chamber: Size 20/24 on common configurations
Supported Axle Load: Application-specific; ZF lists MAXX 22T applications up to 10 metric tons
Maximum Brake Torque: Up to 21,000 Nm in applicable configurations
Primary Applications: Dry vans, refrigerated trailers, flatbeds, tank trailers, vocational trailers, and specialty commercial trailers
Common Hendrickson Integration: INTRAAX, INTRAAX-SP, VANTRAAX, ULTRAA-K, and TRLAXLE systems
Technology Relationship: Hendrickson-branded brake package using ZF single-piston air-disc-brake technology
Primary Benefit: Consistent trailer braking with reduced brake weight, simplified construction, and serviceable friction components

Overview

The Hendrickson MAXX22T is a lightweight air disc brake designed specifically for commercial trailer applications. It combines a single-piston monobloc caliper with a ventilated disc rotor, brake pads, an automatic adjustment mechanism, and a pneumatic brake chamber.

Hendrickson offers the MAXX22T as an integrated brake option on several of its trailer suspension and axle systems. These include selected INTRAAX, INTRAAX-SP, VANTRAAX, ULTRAA-K, and TRLAXLE configurations.

The MAXX22T uses ZF single-piston brake technology within a Hendrickson-branded and supported trailer brake package. Correct identification remains important because MAXX22T assemblies can differ by rotor position, spindle design, hub material, brake chamber, suspension model, and axle certification.

Compared with a conventional trailer drum brake, the MAXX22T provides more consistent braking during repeated or extended brake applications. It also allows technicians to inspect pad condition without removing a brake drum.

Hendrickson currently lists both inboard- and outboard-mounted 415 mm rotor packages for 22.5- and 24.5-inch wheels. The selected configuration must match the trailer axle, spindle, hub, suspension, brake chamber, and certification requirements. Hendrickson MAXX22T product information

Key Characteristics

Trailer-specific air disc brake
Lightweight single-piston caliper
Compact monobloc caliper construction
415 mm ventilated disc rotor
Inboard- and outboard-mounted rotor configurations
Designed for 22.5-inch and 24.5-inch wheels
Automatic running-clearance adjustment
Sealed caliper guide system
Replaceable brake-pad set
Pad-wear indication capability
Consistent performance during repeated braking
Compatible with trailer ABS and roll-stability systems
Available on selected Hendrickson integrated suspension systems
Available with selected Hendrickson non-integrated trailer axles
Reduced brake fade compared with many drum-brake configurations
No external slack adjuster
No conventional S-camshaft

Major Components

MAXX22T monobloc caliper
Single-piston clamping mechanism
Caliper carrier
Caliper guide pins and protective boots
Automatic adjuster mechanism
Brake pads
Pad-retaining spring
Pad-retaining bar and fasteners
Pad-wear indicator
Wear-sensor wiring when equipped
415 mm ventilated rotor
Rotor mounting hardware
Hub and rotor assembly
Pneumatic brake chamber
Brake chamber mounting bracket
Air hose and fittings
Caliper mounting bolts and washers
Axle spindle
Wheel hub
Wheel bearings
Hub seal
Hubcap
ABS tone ring
Wheel-speed sensor

How the Brake Component or System Works

When the driver applies the service brakes, compressed air travels through the trailer’s brake-control system to the MAXX22T brake chamber. Air pressure moves the chamber mechanism, which applies force to the caliper’s internal operating system.

The caliper converts this force into clamping pressure. The inboard brake pad moves against the rotor, and the sliding-caliper arrangement brings the outboard pad into contact with the opposite rotor surface.

Friction between the pads and rotating rotor converts the trailer’s motion into heat. The ventilated rotor releases this heat into the surrounding air.

When the driver releases the brake pedal, air pressure is removed from the service chamber. The brake releases and the pads return to their designed running clearance.

The internal adjustment mechanism compensates for normal pad and rotor wear. This helps preserve the intended clearance without using the external slack adjuster found on an S-cam drum brake.

Position and Function Within the Brake System

The MAXX22T is mounted at each equipped trailer wheel end. It functions as the foundation brake that converts pneumatic control pressure into mechanical clamping force.

The complete braking sequence involves:

The tractor generating the driver’s braking command
The trailer control line transmitting that command
Trailer relay or ABS valves directing air to the brake chambers
The brake chambers applying the MAXX22T calipers
The brake pads clamping the rotors
The tires transferring braking force to the road

The brake also works with the trailer’s parking and emergency-brake system when spring-brake chambers are installed. Loss of trailer supply pressure causes the spring section of the chamber to apply the parking brakes according to the trailer system’s design.

MAXX22T brakes do not independently control brake timing or wheel slip. Those functions are handled by the trailer’s valves, ABS, electronic braking system, and roll-stability equipment.

Common Specifications

Brake Type: Pneumatic trailer air disc brake
Caliper Type: Sliding single-piston monobloc caliper
Rotor Diameter: 415 mm
Rotor Design: Ventilated disc
Rotor Position: Inboard or outboard, depending on axle configuration
Wheel Compatibility: 22.5-inch and 24.5-inch commercial trailer wheels
Common Spindles: HN, HP, or HX, depending on rotor and hub arrangement
Common Brake Chamber: Standard size 20/24
Maximum Brake Torque: Up to 21,000 Nm in applicable ZF MAXX 22T configurations
Axle-Load Capability: Application-specific; configurations may support trailer axle loads up to 10 metric tons
Adjustment: Internal automatic running-clearance adjustment
Wear Monitoring: Visual inspection provisions and optional electronic pad-wear sensing
ABS Compatibility: Compatible with properly specified trailer ABS
Stability-System Compatibility: Compatible with properly specified roll-stability systems
Suspension Integration: Selected Hendrickson INTRAAX, INTRAAX-SP, VANTRAAX, and ULTRAA-K systems
Non-Integrated Axle Availability: Selected Hendrickson TRLAXLE configurations

Specifications vary by suspension, axle, spindle, rotor position, hub, brake chamber, and brake certification. The trailer identification and Hendrickson assembly information must be checked before ordering components.

Operating Specifications and Performance

The MAXX22T is designed to provide predictable braking across repeated service-brake applications. Its exposed ventilated rotor can release heat more effectively than a brake drum that encloses its friction surfaces.

ZF identifies the MAXX 22T as a trailer-specific brake capable of producing up to 21,000 Nm of braking torque and supporting applications with axle loads up to 10 metric tons. These figures describe eligible configurations and should not be applied automatically to every Hendrickson installation. ZF MAXX 22T product information

Actual stopping performance depends on:

Brake chamber size and operating pressure
Caliper and pad condition
Rotor thickness and condition
Trailer axle loading
Tire condition and road traction
Tractor-to-trailer brake balance
ABS and stability-system operation
Air-system timing
Trailer suspension geometry
Brake certification for the complete axle assembly

The brake should never be uprated through component substitutions without confirming the complete axle and vehicle certification.

Braking Performance and System Integration

The MAXX22T must operate as part of a balanced tractor-trailer braking system. Brake torque, chamber size, axle loading, control-valve timing, and tire traction all affect how the combination vehicle stops.

Air disc brakes commonly provide a more direct response than S-cam drum brakes. If a tractor and trailer use different foundation-brake designs, correct pneumatic balance becomes especially important.

Poor brake balance can cause:

The tractor to perform too much of the stopping work
The trailer brakes to apply too aggressively
Uneven pad or lining wear
Excessive rotor or drum temperatures
Trailer instability
Premature ABS intervention
Reduced brake-component life

Replacement chambers, pads, rotors, calipers, and valves must preserve the trailer’s approved brake configuration.

Air Supply, Controls, and Electronic Integration

The MAXX22T relies on the trailer’s compressed-air system. The trailer reservoir stores air, while relay or ABS-modulator valves direct pressure to the brake chambers.

The brake can be integrated with:

Trailer antilock braking systems
Roll-stability support systems
Electronically controlled braking systems
Wheel-speed sensors
Electronic pad-wear sensors
Trailer diagnostic systems
Tire-pressure control systems
Spring-brake emergency and parking systems

Hendrickson notes that its air disc brake packages can be used with roll-stability systems and electronically controlled braking systems. Selected packages can also be combined with the TIREMAAX PRO tire-pressure control system.

The pad-wear sensor monitors friction-material condition but does not replace physical inspection. Wiring, connectors, routing, and warning functions should be checked during scheduled service.

Installation, Adjustment, and Brake Balance

MAXX22T installation requires the exact caliper orientation, rotor arrangement, mounting hardware, brake chamber, hose routing, and fastener procedures specified for the axle.

Important installation checks include:

Confirming left- and right-hand caliper positions
Inspecting mounting surfaces
Using specified caliper fasteners
Following the required tightening sequence and torque
Confirming chamber compatibility
Checking chamber and hose clearance
Inspecting guide-pin movement
Verifying rotor runout and thickness
Confirming wheel and tire clearance
Testing automatic adjustment
Checking ABS sensor operation
Confirming balanced brake application across the axle

The brake’s internal adjuster should not be treated like an external drum-brake slack adjuster. Adjustment and reset procedures must follow the MAXX22T service literature.

After brake service, the technician should perform an operational inspection before returning the trailer to service.

Foundation Brake, Axle, and Wheel-End Compatibility

Hendrickson offers different MAXX22T wheel-end packages.

The outboard-mounted version commonly uses:

HX spindle
415 mm outboard rotor
Steel hub
22.5-inch or 24.5-inch wheel
Standard size 20/24 chamber

The inboard-mounted version commonly uses:

HN or HP spindle
415 mm inboard rotor
Ductile-iron or Dura-Light hub
22.5-inch or 24.5-inch wheel
Standard size 20/24 chamber

The brake may be available with selected:

INTRAAX AANT configurations
INTRAAX AANLS configurations
INTRAAX AANL configurations
INTRAAX AAL configurations
INTRAAX AAEDL configurations
INTRAAX AAEDT configurations
INTRAAX-SP AAZNT configurations
VANTRAAX HKANT configurations
VANTRAAX HKAT configurations
VANTRAAX HKARL configurations
ULTRAA-K UTKNT configurations
TRLAXLE non-integrated axles

Availability depends on the exact suspension and axle ordering guide. A model-family name alone does not confirm compatibility.

Common Applications

Dry van trailers
Refrigerated trailers
Flatbed trailers
Curtain-side trailers
Container chassis
Tank trailers
Bulk trailers
Hopper trailers
Dump trailers
Livestock trailers
Automotive transport trailers
Specialty commercial trailers
Line-haul trailer fleets
Regional delivery trailers
High-mileage commercial trailers
Trailers operating on long grades

Vehicle and Brake-System Compatibility

The MAXX22T is intended for properly engineered commercial trailer axle systems. Compatibility must be confirmed at the axle and wheel-end level rather than solely by trailer manufacturer.

Selection depends on:

Trailer manufacturer and model
Trailer model year
Suspension model
Axle model and capacity
Spindle type
Rotor mounting position
Hub material and design
Wheel size and offset
Tire size
Brake chamber size
ABS configuration
Stability-control configuration
Parking-brake requirements
Gross axle weight rating
Original brake certification

A MAXX22T caliper should not be substituted for another air disc brake merely because the mounting area appears similar.

Advantages

Consistent braking during repeated applications
Good resistance to brake fade
Trailer-specific lightweight design
Single-piston operating system
Compact monobloc caliper
Fewer components than some earlier brake designs
Automatic running-clearance adjustment
No external slack adjuster
No S-camshaft or camshaft bushings
Accessible brake-pad inspection
Replaceable pads without removing a brake drum
Available electronic pad-wear sensing
Compatible with trailer ABS
Compatible with roll-stability systems
Integrated Hendrickson axle and suspension availability
Inboard- and outboard-rotor options
Potential reduction in wheel-end weight

Limitations or Considerations

Requires the correct Hendrickson axle configuration
Parts are not automatically interchangeable with other MAXX brakes
Caliper orientation must be identified correctly
Rotor replacement can require substantial wheel-end disassembly
Inboard-rotor service generally requires hub removal
Specialized service procedures and tools may be required
Rotor damage can result from severely worn pads
Guide pins and protective boots require inspection
Incorrect pad installation can damage the brake
Air hoses require correct routing and clearance
Electronic wear sensors add wiring and connectors
Replacement components must preserve brake certification
Brake parts may cost more than common drum-brake components
Mixed tractor and trailer brake types require proper balance
Technicians require air-disc-brake training

Driver and Operator Experience

A properly maintained MAXX22T-equipped trailer should provide smooth and predictable braking. Drivers may notice a quicker or more direct response than with a comparable trailer using S-cam drum brakes.

Air disc brakes can maintain more consistent performance during repeated stops and long descents, but they do not eliminate the need for proper speed selection and engine braking.

Drivers should report:

Trailer pulling during braking
Delayed trailer-brake application
Brake warning lamps
ABS warning lamps
Pad-wear warnings
Grinding or scraping noises
Burning odors
Wheel-end smoke
Excessive heat
Air leaks
Trailer instability
Unexpected wheel lockup
Reduced stopping performance

A trailer with suspected brake damage should be inspected before continued operation.

Maintenance and Ownership Notes

Inspect brake-pad thickness
Inspect rotor thickness
Check rotor surfaces for cracks or heat damage
Inspect the caliper for free movement
Check guide pins and protective boots
Inspect the pad-retaining system
Check the automatic adjuster
Inspect the brake chamber
Check chamber mounting fasteners
Inspect air hoses and fittings
Check hose routing through full suspension travel
Inspect caliper mounting bolts
Check wheel bearings and hub seals
Inspect for lubricant contamination
Test ABS warning and diagnostic functions
Inspect wheel-speed sensors and tone rings
Check pad-wear sensor wiring when equipped
Compare brake temperatures across the axle
Use approved replacement pads and components
Follow Hendrickson service intervals and procedures

Common Brake-System Problems

Uneven brake-pad wear: Restricted caliper movement, damaged guide components, rotor problems, incorrect installation, or wheel-end movement may cause one pad to wear faster than the other.
Brake dragging: A sticking caliper, damaged guide system, adjuster malfunction, trapped air pressure, contaminated components, or incorrect chamber installation may prevent complete release.
Reduced braking force: Low air pressure, a damaged chamber, contaminated pads, worn friction material, rotor damage, incorrect adjustment, or pneumatic-system problems may reduce braking.
Rotor scoring: Worn pads, embedded debris, damaged friction material, or continued operation after the pads reach their service limit can score the rotor.
Rotor heat checking: Repeated high-temperature operation can create surface checking. The rotor must be evaluated using the manufacturer’s inspection criteria.
Brake pulling: Unequal chamber pressure, different pad conditions, caliper restriction, rotor contamination, tire problems, or uneven axle loading may create side-to-side imbalance.
Air leakage: Damaged hoses, fittings, chambers, relay valves, or ABS modulators can reduce available braking pressure.
ABS warning lamp: Wheel-speed sensor problems, damaged wiring, excessive sensor gap, tone-ring damage, low voltage, or a stored electronic fault may illuminate the warning lamp.
Pad-wear warning: The friction material may have reached its warning point, or the sensor and wiring may be damaged.
Abnormal noise: Loose hardware, worn pads, damaged rotors, foreign material, caliper movement, or wheel-bearing problems can produce clicking, scraping, or grinding sounds.

Safety and Service Precautions

Commercial air brake systems contain stored pneumatic and mechanical energy. The trailer must be secured before brake or wheel-end service begins.

Before servicing the MAXX22T:

Park on a firm and level surface
Chock the wheels
Support raised equipment with approved stands
Drain or isolate air pressure as directed
Cage spring brakes when the procedure requires it
Never disassemble a spring-brake chamber
Allow hot brakes to cool
Wear suitable eye and hand protection
Follow approved lifting procedures
Use calibrated torque tools
Replace specified one-time-use fasteners
Keep grease and oil away from pads and rotors

A spring-brake chamber can cause severe injury if opened incorrectly. Chamber replacement and caging must follow the chamber manufacturer’s instructions.

Hendrickson’s MAXX22T installation and maintenance procedures should be consulted before inspecting, adjusting, rebuilding, or replacing the caliper. MAXX22T installation and maintenance information

Identification Information

Identification may be found on the caliper, axle tag, suspension tag, brake chamber, hub, or trailer certification records.

Record the following information:

Trailer manufacturer
Vehicle identification number
Trailer model and model year
Hendrickson suspension model
Hendrickson axle model
Axle serial number
Suspension assembly number
MAXX22T caliper part number
Left- or right-hand caliper position
Inboard- or outboard-mounted rotor
Spindle type
Rotor diameter and part number
Hub part number and material
Brake-pad part number
Brake chamber manufacturer
Brake chamber size
Wheel size
ABS configuration
Pad-wear sensor configuration
Brake certification information

Similar-looking MAXX22T components may have different mounting, chamber, rotor, or certification requirements. Parts should not be ordered by appearance alone.

Buying Considerations

Confirm the complete axle and suspension model
Record the axle serial number
Determine whether the rotor is inboard or outboard
Identify the spindle type
Confirm the wheel size
Verify the rotor diameter
Identify the hub material
Confirm the brake chamber size
Identify left- and right-hand calipers
Check pad-wear sensor requirements
Verify ABS compatibility
Confirm brake-certification requirements
Check whether mounting hardware is included
Determine whether fasteners are reusable
Inspect rotor condition before ordering pads
Check guide-pin and boot condition
Verify wheel-bearing and seal requirements
Use approved friction material
Confirm parts availability through Hendrickson
Compare individual components with complete service kits

Variants and Configurations

Inboard-mounted 415 mm rotor
Outboard-mounted 415 mm rotor
HN spindle configuration
HP spindle configuration
HX spindle configuration
Ductile-iron hub configuration
Dura-Light hub configuration
Steel-hub configuration
22.5-inch wheel configuration
24.5-inch wheel configuration
Size 20/24 brake-chamber configuration
Application-specific alternative chamber sizes
Left-hand caliper
Right-hand caliper
Pad-wear sensor configuration
Non-sensor configuration
INTRAAX integrated package
INTRAAX-SP integrated package
VANTRAAX integrated package
ULTRAA-K integrated package
TRLAXLE non-integrated axle package

Comparison to Similar Equipment

Compared with the ZF WABCO MAXXUS L2.0 Air Disc Brake, the MAXX22T is designed primarily for trailer wheel ends. MAXXUS L2.0 is associated primarily with powered commercial-vehicle applications.

Compared with the Haldex ModulT Air Disc Brake, both use lightweight single-piston air-disc-brake architectures. Their calipers, carriers, pads, adjusters, rotors, and service parts are not interchangeable.

Compared with the Meritor EX+ LS Air Disc Brake, the MAXX22T provides a different caliper, adjuster, mounting, and wheel-end package. Selection depends on the original axle and suspension specification.

Compared with the Bendix ADB22X-LT Air Disc Brake, the MAXX22T uses a 415 mm rotor in Hendrickson’s listed configurations, while the ADB22X-LT packages listed by Hendrickson use a 430 mm rotor.

Compared with a conventional trailer drum brake, the MAXX22T generally provides more consistent repeated-stop performance and easier friction-material inspection. Drum brakes may have lower initial component costs and broader familiarity among repair facilities.

Best Fit For

Trailers originally equipped with MAXX22T brakes
Hendrickson integrated suspension systems
Selected Hendrickson TRLAXLE axles
Line-haul trailers
Regional delivery trailers
High-mileage fleets
Trailers operating on long grades
Fleets prioritizing consistent brake response
Fleets seeking reduced wheel-end weight
Operations using trailer roll-stability systems
Maintenance programs equipped for air disc brakes
Trailers requiring 22.5-inch or 24.5-inch wheels

Related Vehicle and Trailer Types

Complete Guide to Semi-Trailer Types
Dry van trailers
Refrigerated trailers
Flatbed trailers
Tank trailers
Container chassis
Hopper trailers
Dump trailers
Livestock trailers
Curtain-side trailers
Specialty commercial trailers

Related Truck and Trailer Models

Related Brake System Types

Brake Systems
Air Brake Systems
Air Disc Brake Systems
Trailer Brake Systems
ABS & Electronic Braking Systems
Brake Chambers & Actuators
Drum Brake Systems
Trailer foundation brakes
Pneumatic disc brakes
Spring parking brakes
Trailer emergency-brake systems

Related Brake Products

ZF WABCO MAXXUS L2.0 Air Disc Brake
Haldex ModulT Air Disc Brake
Meritor EX+ LS Air Disc Brake
Bendix ADB22X Air Disc Brake
Bendix ADB22X-LT Air Disc Brake
Bendix SR-7 Spring Brake Modulating Valve
Trailer brake chambers
Trailer ABS modulators
Air-brake relay valves
Pad-wear monitoring systems

Related Equipment Systems

Equipment Systems
Suspension Systems
Axles & Differentials
Hendrickson INTRAAX
Hendrickson VANTRAAX
Hendrickson ULTRAA-K Slider System
Trailer air systems
Trailer wheel ends
Tires and wheels
Trailer electrical systems
Tire-pressure control systems

Related Guides

Regulatory and Compliance Notes

Commercial trailer brakes must comply with the applicable vehicle-safety standards and brake-certification requirements for the jurisdiction in which the trailer is manufactured and operated.

The installed chamber, rotor, caliper, tire, wheel, axle, and ABS configuration must remain consistent with the trailer’s approved braking specification.

Changing brake chambers, friction material, rotor dimensions, axle components, or control valves can alter brake torque and balance. Any substitution should be supported by the appropriate manufacturer documentation and certification.

Brake inspection requirements may include:

Minimum friction-material thickness
Rotor thickness and condition
Air leakage limits
Brake-chamber condition
Hose and fitting condition
ABS warning-lamp operation
Secure mounting
Functional parking brakes
Balanced application
Absence of contaminated friction surfaces

The trailer must also remain within its certified gross axle and gross vehicle weight ratings.

Real World Operating Notes

Technicians should identify the brake before disassembly. Trailer fleets may operate visually similar axles equipped with different air disc brake brands, rotor sizes, chamber arrangements, or pad sets.

Inboard-mounted rotors generally require hub removal for rotor replacement. Outboard-mounted rotors can simplify certain rotor-service procedures, but the exact steps still depend on the hub and wheel-end package.

Pad replacement should include inspection of both rotor surfaces, caliper movement, guide components, retaining hardware, chamber condition, and wheel-end integrity.

Brake temperature should be compared across the axle after a reported dragging or performance problem. A significantly hotter wheel end may indicate a dragging brake, while a substantially cooler wheel end may indicate insufficient application.

New pads require a proper bedding process. Until the friction surfaces mate correctly, maximum braking performance may not be available.

Air disc brakes still require scheduled inspection. Automatic adjustment and electronic wear monitoring do not make the brake maintenance-free.

Frequently Asked Questions

What is the Hendrickson MAXX22T?

The MAXX22T is a lightweight, single-piston air disc brake designed for commercial trailer axles and integrated Hendrickson suspension systems.

Is the MAXX22T made by Hendrickson or ZF?

It is offered as a Hendrickson-branded trailer brake package and uses ZF single-piston air-disc-brake technology. Parts and service identification should follow the exact Hendrickson axle installation.

What size rotor does the MAXX22T use?

Hendrickson lists 415 mm inboard- and outboard-mounted rotor configurations.

What wheel sizes can be used?

Hendrickson lists MAXX22T packages for 22.5-inch and 24.5-inch wheels.

Is the MAXX22T a single-piston brake?

Yes. It uses a lightweight single-piston sliding-caliper design.

Does it use a slack adjuster?

No external slack adjuster is used. Running clearance is managed by the caliper’s internal automatic adjuster.

Can it be used with trailer ABS?

Yes. The brake can be integrated with properly specified trailer ABS, roll-stability, and electronic braking systems.

Which Hendrickson suspensions offer the MAXX22T?

Availability includes selected INTRAAX, INTRAAX-SP, VANTRAAX, and ULTRAA-K configurations. It may also be ordered with selected TRLAXLE non-integrated axles.

Are inboard- and outboard-rotor parts interchangeable?

No. The hub, spindle, rotor, mounting hardware, and service procedures differ between configurations.

Why is one brake pad wearing faster than the other?

Restricted caliper movement, guide-system damage, rotor problems, contamination, incorrect installation, or wheel-end movement may cause uneven wear.

Can MAXX22T parts be replaced with parts from another MAXX brake?

Parts should not be substituted based on the MAXX name or visual similarity. Use the caliper, axle, suspension, and wheel-end identification information.

How can the correct replacement parts be identified?

Use the trailer VIN, Hendrickson suspension and axle tags, axle serial number, caliper number, spindle type, rotor position, hub information, chamber size, and wheel size.

Availability and Where to Find

The MAXX22T is available as an air disc brake option on selected Hendrickson trailer suspension and axle systems. New-system availability depends on the suspension model, axle capacity, spindle, hub, rotor position, wheel size, and brake certification.

Replacement calipers, pads, rotors, hubs, chambers, fasteners, sensors, and service kits may be available through Hendrickson distributors, trailer dealers, fleet-parts suppliers, heavy-duty brake specialists, and commercial trailer repair facilities.

Before ordering, buyers should provide the axle serial number and complete suspension information. Hendrickson’s Parts Plus lookup resources and technical literature can help identify the correct components.

Current product details, literature, technical support, and distributor information are available through the Hendrickson MAXX22T product page.

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