Midland All-Make Parts

High Quality All-Make parts engineered to provide performance you can count on.

MIDLAND quality service parts provide distributors with single-source convenience to meet their customer’s vital needs. They deliver exceptional quality and value for commercial truck and trailer, transit, defense, vocational and off-highway applications.

Brake Products

Spring Brake Actuators

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Midland spring brakes maximize life cycle value:

Reliability and extended life in a spring brake actuator.
Permanently attached, sealed chamber promotes safety, resists rust.
Polymer coated spring and stud housing for corrosion protection.
Oil, chemical and water resistant diaphragms for maximum life.
Double-bolted clampband for adjustment and secure attachment.
Two 3030 DDSB models, with 2.5” or 3.0” stroke, 10.0” pushrod.
Clevis assembly included.
One year unlimited mileage warranty.*

Automatic Brake Adjusters

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Midland clearance-sensing ABA. The automatic choice in brake adjusters.

Clearance-sensing design is the performance standard in brake adjusters, but not all automatic brake adjusters are created equal.

Midland self-setting Type S and standard Type 1 clearance-sensing automatic brake adjusters are designed and built in North America by Haldex – the inventor and market leader in clearance-sensing ABAs.

Don’t settle for imitation brake adjusters. Insist on Midland automatic brake adjusters from Haldex.

Better overall performance than stroke-sensing ABAs.
Designed and manufactured in North America by Haldex.
Available in Type 1 and Type S models.
1-year warranty.

Saddle-Mounted (or tab-less) Single and Dual Compartment Reservoirs available.

Long life internal and external corrosion protection.
Withstands 500 hour salt spray test.
Valve ports reinforced for extra strength.
Conforms to SAEJ10B specifications.
Certified to 150 PSI working pressure.
Use of isolator pads recommended in any ABS application.

Notes:

All tanks have 1/4 inch drain port in bottom.
All tanks have two 3/8 inch charging ports, one on each end.

Reservoirs

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Rotors

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The Midland line of air disc brake rotors delivers quality, value, and long service life.

Midland offers OEM-quality medium and heavy-duty rotors for commercial trucks and trailers, transit, defense, emergency, and off-highway applications.

Our comprehensive lineup of “Flat,” “U,” and “Hat” rotors covers most major air disc brake systems from Bendix®, Knorr-Bremse, Meritor®, Wabco, Hendrickson®, and Haldex.

Developed and manufactured under ISO/TS 16949 standards.
Cast from premium raw materials for clean, consistent, and high-grade iron.
Molded and machined to deliver uniformity, precision, and superior surface finish.
Tested to meet stringent durability standards.

Midland’s Camshafts (S-Cams) for tractor, trailer, and truck air suspensions.

Midland’s camshafts are an essential part of air brake systems on heavy trucks and trailers specifically designed to meet the customers’ performance needs allowing fuel/air in and exhaust out, vital for engine operations. Made of strong metals that have been assessed and proven to provide high volume performance.

1-1/4″ Diameter – 24 Spline and 1-1/2″ Diameter – 28 Spline.
Nominal Head Dimension – “Q” Standard 1-3/8″ and “Q” Plus 1-1/8″.

Camshafts

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Friction

Brake Shoes

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Value and performance in commercial vehicle drum brakes. 

NEW steel − No core.
OE grade hardware kits.
Heat treated roller and anchor ends.
23K non-asbestos organic friction material.
Level N (2025) copper content compliant.
E-Coat for corrosion protection

Air Disc Brake Pads

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Premium, MID/Heavy-Duty Friction

Developed for trucks, tractors, trailers, dump, coach coast-to-coast operations – standard and heavy haul loads.
Quiet friction compound.
Excellent fade resistance and recovery at moderate-to-high braking temperatures.
Long-life, proven wear performance.
Solid durability and rotor-friendly.
Advanced mechanical retention system.
FMVSS 121 & ECE R90 certified.

Air Treatment

Air Dryers

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Midland’s performance air dryers integrate all components into one compact package.

Midland’s air dryers integrate the turbo protection valve, governor, regeneration valve, muffler, and heater into one compact package to extend service life of your brake system.

Air dryers effectively remove moisture, oil, and impurities, ensuring stable air pressure and performance of the air dryer systems. Its high-quality filtration not only prevents icing but also protects components, allowing your truck to perform in various environmental conditions.

Midland air dryer assemblies are made of high-quality, durable materials and can withstand harsh environmental conditions, ensuring long-lasting performance and reliability.

Filter Cartridges

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Desiccant filters with and without a powerful coalescing filter.

Midland high-capcity filters prevent moisture and oil contaminants from entering the compressed air system. This reduces air system component wear and increases the reliability and availability of the vehicle.

Suspensions

Air Springs

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Midland’s Air Springs for tractor, trailer, and truck air suspensions.

All types and sizes of rolling lobe, convoluted bellows, or sleeve type replacement air springs to service all the major manufacturers of suspensions and ride equipment.

Midland’s air springs are specifically designed to meet the customers’ needs in terms of carrying capacity, spring characteristics, spring deflection, and space requirements.

Made of high quality rubber compound that has been developed, tested and proven to provide years of performance. The excellent dynamic behavior of elastomer materials combined with high performance plastic and metal components result in a worry-free air spring system.

Available in 1/2″ increments to satisfy all ride height requirements regardless of the OE manufacturer.
Bellows made to OE construction which allows for minimal heat retention and longer life of product.

Midland’s high-performance hydraulic shock absorbers for Class 6-8 trucks, trailers, and buses.

Midland’s heavy-duty shock absorbers feature superior anti-fade performance that enhances safety, control, and braking effectiveness while extending the wear-life of costly suspension components.

A best-in-class hydraulic stop limits overextension and damage. New piston seals provide superior fluid retention and consistent damping performance. Anti-corrosion features prevent premature piston wear, end-mount failure and mounting bolt seizure.

Up to 20% better anti-fade performance.
Bulged design for increased fluid capacity and cooler operation.
All coil spring valving for enhanced ride stability.
Self-compensating piston seal for consistent damping.
360° arc-welded solid steel end mounts for reduced fatigue.
Larger 1-5/8″ bore for maximum durability.

Shock Absorbers

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Height Control Valves

Click for all Height Control Valves on Haldex.com

The right ride height. The right selection.

With the addition of the Midland All-Makes height control valve (HCV) line, our offering covers a broad range of applications and strengthens Midland suspension capabilities.

Direct replacements for industry-recognized types.
Immediate-response design reacts instantly to ensure proper ride height throughout use.
Integral dump features (as applicable) See cross-functional linkage kits available in our Haldex line.
Designed for use on Cab, Chassis, & Trailer air suspensions.
100% line tested.
Easy install mounting brackets and hardware included.

Valves & Governors