Description
FPK056889 AIR DISC CARRIER – ADB22 (FREIGHTLINER, BENDIX)
PART NUMBER(S):
Fleet Products: FPK056889 | OE: K056889
DESCRIPTION:
Model: Bendix ADB22X, ADB22X-V (12° vertical mount)
Engines: N/A
Vehicles: Freightliner Cascadia, M2, and other Freightliner models equipped with Bendix ADB22 systems (verify against axle build sheet)
• Caliper Family: ADB22
• Side: Universal (left-hand or right-hand determined by axle build)
• Mounting: 12° vertical mount, per Freightliner OEM specification
• Rotor Compatibility: 430 mm OD, 45 mm new thickness, 37 mm minimum discard thickness; fits 22.5"/24.5" wheel sizes
• Material: Ductile iron carrier with corrosion-resistant finish
• ABS Integration: Compatible with standard ABS sensors (tone ring mounts to rotor)
• Calipers Fitment: FPK012341WC-G, FPK012342WC-G, FPK081142WC-G, FPK081143WC-G, FPK081256WC-G, FPK081257WC-G, FPK109957WCX, FPK109958WCX, FPK109961WCX, FPK109962WCX, FPK802984WC-G, FPK802985WC-G, FPK113887WCX, FPK113888WCX
Applications:
Mounting interface for Bendix ADB22 caliper assemblies on Freightliner truck steer and drive axles. Provides precise alignment for 430 mm rotors in a 12° orientation. Suitable for OE replacement or fleet retrofit on Bendix ADB22X and ADB22X-V brake systems.
CROSS-REFERENCE(S):
K056889, K056559, 158K081257, S32193, MK081257X, RDB109958CRX, 22X97847B, FPK081257WCG, BL470042, ATCAD2008, K081257R, K097847SC, K109958X, K147135, 71122N2XXXN, GBADC9958
A cross-reference listing means this part is functionally interchangeable with the listed numbers; always verify fitment before installing.
IMPORTANT INSTALLATION NOTES:
✔ Use exclusively on Freightliner truck axles configured for Bendix ADB22 systems with 12° vertical mounting.
✔ Mount carrier using OEM hardware; torque fasteners to Bendix/Freightliner specifications.
✔ Confirm rotor compatibility: 430 mm OD, 45 mm thickness (new), 37 mm minimum discard.
✔ Ensure ABS sensor alignment; tone ring is mounted to the rotor, not the carrier.
✔ Replace both carriers/calipers on the same axle simultaneously for balanced braking performance.
✔ Inspect mounting flange and hub face for corrosion or damage prior to installation.
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Warranty Information
