Product Description
REMAN AIR DISC CALIPER – MAXXUS RH 12° STANDARD MOUNT WITH CARRIER
PART NUMBER(S):
Fleet Products: FP6403221050WCX | OE: 403221050, 22-50139-000, 22-50140-000 | Automann: 158.6403220660
DESCRIPTION:
Model: Wabco MAXXUS
Engines: N/A
Vehicles: Freightliner Cascadia (2018+), Coronado (2020+); Western Star 49X, 57X
• Brake Side: Right-Hand (RH)
• Angle: 12° Mount (Standard Carrier)
• Mounting Style: 8x M16 bolt radial mount
• Caliper Type: Reman air disc with integrated carrier
• Ports: Dual M14x1.5 ISO
• Rotor Compatibility: 432 mm diameter, min thickness 36.0 mm
• ABS Integration: WABCO 4S/4M sensor compatibility
• Pistons: Dual 60 mm stainless steel
• Weight: 32.6 lbs (with carrier)
Applications:
Fits front RH axle positions on Freightliner and Western Star trucks using Wabco MAXXUS air disc brake systems with 12° chamber mount angle. Not compatible with trailers, LH configurations, or 0°/15°/20° mounts. Designed for standard-mount caliper setups requiring high thermal tolerance and braking torque.
CROSS-REFERENCE(S):
403221050, 22-50139-000, 22-50140-000, R934663, 34.40322.1050, SB-MXUS-RH-STD, RDB403221050CRX, TSE-403221050, PP-MXUS-RH, FP-403221050, UP9403221050, TP-MXUS-RH, FIP-403221050, RTC-403221050, PHD-403221050
A cross-reference listing means this part may be a compatible replacement for these part numbers based on OEM or distributor data.
IMPORTANT INSTALLATION NOTES:
✔ Use only on trucks with MAXXUS 12° RH standard-mount brake systems
✔ Replace both RH and LH calipers together for system balance
✔ Follow WABCO torque spec:
• Carrier bolts: 280–310 Nm (207–229 lb-ft)
• Brake fittings: 40–45 Nm (30–33 lb-ft)
✔ Replace with WABCO mounting kit P/N MXUS-HW12-RH
✔ Inspect shear adapters before install – replace if cracked
✔ Perform 20 moderate stops from 30 mph before applying heavy braking
SOLD AS REMANUFACTURED | CORE RETURN REQUIRED
Built to OEM standards | thoroughly cleaned, inspected, and tested to ensure durability, performance, and reliability in demanding applications.
SUPPORT & ORDERING
For technical support, installation guidance, or to confirm fitment, Call: 1-877-243-0442 | Email: sales@fleet-products.com
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