Bendix K129276 extended-life brake pad kit (FMSI D1369 / friction code 8479) for Bendix ADB22X air disc brakes — one axle set with hardware. Aftermarket replacement for the legacy Bendix K070796 service kit, with the updated extended-life formulation that adds wearable thickness and reduces wear rate compared to the original ADB22X pad set. Rated for 23,000 lb axle load.Signs You Need New Air Disc Brake Pads Pad thickness at or below the wear-indicator line Wear-sensor circuit setting a code (where equipped) Squealing or grinding from the disc brake Brake pulling, longer stopping distance, or pedal travel changes Pre-trip inspection finds chipped, glazed, or cracked friction Specifications Manufacturer Bendix Part Number K129276 Part Type Air Disc Brake Pad Kit (axle set) Caliper Compatibility Bendix ADB22X / SK7 FMSI Backing Plate D1369 FMSI Friction 8479 Pad Dimensions 8.27 in × 4.21 in Axle Load Rating 23,000 lb Compliance FMVSS-121 stopping distance, park hold, ECE R90 / RSD Kit Includes 4 brake pads (one axle set) 2 wear sensors 2 pad retainer springs Installation instructions Cross ReferencesThis pad kit replaces or is equivalent to the following part numbers: Bendix: K129276, K070796 (legacy service kit) OTR: OTRD1369 Marathon: DSHP1369 Haldex: MPBD1369XT SAF Holland: G0571369330 ApplicationsThis air disc brake pad kit fits any axle equipped with Bendix ADB22X (SK7) air disc brakes — standard on most modern Class 7–8 tractors and many trailers, including: Freightliner Cascadia, M2, Coronado, 122SD with ADB22X Kenworth T680, T880, T800, W900 with ADB22X Peterbilt 567, 579, 389 with ADB22X Volvo VNL, VNR, VHD with ADB22X Mack Anthem, Pinnacle, Granite with ADB22X International LT, RH, HV with ADB22X Trailer applications using ADB22X (Hendrickson, SAF Holland, Meritor / Ridewell trailer suspensions) Verify your caliper model is ADB22X (or SK7) before ordering — ADB22 (non-X), Knorr SB, and Meritor EX225 air disc brakes use different pad kits.