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Home MFLEX4 Air Disc Brake Pads

MFLEX4 Air Disc Brake Pads

MER-MFLEX4
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About this item

The Meritor MFLEX4 Air Disc Brake Pad represents Meritor’s newest generation of high-performance ADB pads for heavy-duty truck and trailer applications. Built for linehaul and severe-duty operations, the MFLEX4 combines proven Meritor technology with a new, patent-pending friction formulation that delivers longer life, smoother stops, and simplified installation.

Each kit comes complete with four pads and all necessary hardware (pins, springs, and shims) for a full axle installation.

High-Performance Friction

  • Advanced N-type copper-reduced compound (<0.5% copper) meets “2025 copper” environmental standards.

  • Optimized for consistent, fade-resistant braking under heavy loads.

  • Post-cured for fast bed-in and stable friction from day one.

Exceptional Durability

  • Patented Mechanical Retention System (MRS) prevents rust-jacking and pad separation.

  • Powder-coated steel backing plates resist corrosion.

  • Positive-mold manufacturing ensures strong, uniform bonding of friction material.

OEM-Level Quality

  • Tested to FMVSS 121 dynamometer standards for safety and reliability.

  • Matches original equipment (OE) performance for smooth, quiet braking.

  • Designed and built to Meritor Genuine® standards for the aftermarket.

Compatibility

The MFLEX4 is engineered as a direct-fit replacement for major air disc brake calipers used across North American heavy-duty fleets, including:

  • Bendix® ADB22X / ADB22X-LT

  • Hendrickson® MAXX22T

  • WABCO® PAN22 / MAXXUS

The MFLEX4 sits at the top tier of Meritor’s ADB pad lineup, surpassing the previous MMD-series in pad wear, stability, and copper compliance. It’s the premium choice for fleets seeking extended service intervals and OE-level stopping power without compromise.

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Friction Material N-Series (asbestos-free, <0.5% copper)
Backing Plate Powder-coated steel
Friction Thickness 9-10mm
Kit Contents 4 pads & installation hardware
Application Linehaul / Heavy-duty trucks & trailers