New LS Air Disc Brakes Designed for Linehaul and Trailer Applications

Press Release Summary:

  • Designed and validated to taper wear criteria as a twin-piston brake
  • Large-diameter, integrated piston and pusher plate reduce taper wear by increasing stability to deliver evenly distributed braking forces across the brake surface
  • Available with MA9300 N-level proprietary friction

Original Press Release:

Meritor Announces Launch of Lightweight, Single-Piston EX+™ LS Air Disc Brake at North American Commercial Vehicle Show

Over 1 Million Miles of Testing to Deliver Proven Performance and Durability

Troy, Mich., Oct. 29, 2019 /PRNewswire/ -- Meritor, Inc. (NYSE: MTOR) today announced the launch of the lightweight, single-piston EX+™ LS air disc brake, a next-generation braking solution designed and engineered for linehaul and trailer applications.

"After years of development, more than 300 lab tests and over 1 million miles of validation on the road, our EX+ LS air disc brake is designed to offer the reliability and performance that customers expect from Meritor," said T.J. Reed, vice president of Front Drivetrain and Electrification. "This new brake rounds out an industry-leading portfolio of advanced braking solutions specifically designed to serve the linehaul segment."

Meritor designed the EX+ LS air disc brake to meet growing fleet expectations for efficiency, safety and weight reduction. Built with exceptional taper wear control, the new air disc brake is designed and validated to the same taper wear criteria as a twin-piston brake. Its large-diameter, integrated piston and pusher plate reduce taper wear by increasing stability to deliver evenly distributed braking forces across the brake surface. The adjuster mechanism is based on proven EX+ air disc brake architecture to offer reliable and consistent brake performance.

The EX+ LS air disc brake comes standard with MA9300 N-level proprietary friction. Optional positive pad retraction is designed with the goal of maintaining friction couple running clearance to extend pad life and reduce brake drag. An optional pad wear warning indicator aids in service predictability.

Fleets with EX+ LS air disc brakes on their trucks and trailers benefit from commonality of parts within Meritor's existing EX+ L air disc brake design. They can stock fewer parts and replacement is simplified by ordering through Meritor Aftermarket.

The EX+ LS air disc brake is available globally under the ELSA® air disc brake product line outside North America. DriveForce™, Meritor's North American sales and service organization, and OnTrac, Meritor's dealer technical support center, are available to assist customers with solutions before, during and after the sale.

About Meritor

Meritor, Inc. is a leading global supplier of drivetrain, mobility, braking and aftermarket solutions for commercial vehicle and industrial markets. With more than a 100-year legacy of providing innovative products that offer superior performance, efficiency and reliability, the company serves commercial truck, trailer, off-highway, defense, specialty and aftermarket customers around the world. Meritor is based in Troy, Mich., United States, and is made up of approximately 9,300 diverse employees who apply their knowledge and skills in manufacturing facilities, engineering centers, joint ventures, distribution centers and global offices in 19 countries. Meritor common stock is traded on the New York Stock Exchange under the ticker symbol MTOR. For important information, visit the company's website at

Source Meritor, Inc.

Media Inquiries, Ryan Obert, (248) 435-1701,

Investor Inquiries, Todd Chirillo, (248) 435-1571,

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