Description
REMAN AIR DISC CALIPER – MAXXUS WITH CARRIER (RH)
PART NUMBER(S):
Fleet Products: FP6403220510WCX (Reman), FP6403220510WC-G (New) | OE: 6403220510, 6403220660, 640 322 051 0, 640 322 066 0 | Automann: FP6403220510WCX, FP6403220510WC-G
DESCRIPTION:
Model: Wabco MAXXUS
Vehicles: Freightliner & Western Star Trucks – 12° axle configuration (steer & drive axles)
• Brake Side: Right-Hand (RH)
• Caliper Type: Air disc with integrated bottom-mount carrier
• Mounting Style: Bolt-on, 12° offset
• Bolt Pattern: 4x M20 x 1.5 (typical MAXXUS specification)
• Mounting Offset: 12°
• Brake Pad Compatibility: PE2061HK
• Compatible Rotor: 430 mm OD, 45 mm new
• Recommended Pin Kit: FPK30272
• Compatible Spring Brakes: FPK041960
• Carrier Included: 12° LH (FP2554)
• Performance/Technology: Wabco MAXXUS air disc system, FMVSS 121 / CMVSS 121 compliant
• System Integrity: New, no core return required
Applications:
Designed for Freightliner and Western Star truck models with 12° axle mount geometry using the Wabco MAXXUS air disc brake platform. Valid for steer or drive axles on models such as Western Star 4700/4800/4900/5700XE/57X and Freightliner vocational and on-highway trucks. Not compatible with 0°, 15°, or 20° mount systems or trailer applications.
CROSS-REFERENCE(S):
6403220510, 6403220660, 640 322 051 0, 640 322 066 0, 6403220660NX, WAB6403220660, 64AC03220660, FP6403220510WC-G, FP6403220510WCX, 815-6403220510, M6403220660X, 6403229342, 640322051A 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 Freightliner or Western Star axles with 12° MAXXUS RH configuration
✔ Replace both LH and RH calipers at the same time for optimal performance
✔ Clean and prep the caliper mounting surface; ensure it is flat and free of corrosion.
✔ Mount the caliper and torque fasteners to OEM specifications.
✔ Turn the adjuster COUNTER-CLOCKWISE until the brake pads just contact the rotor (avoid over-tightening).
✔ Then turn CLOCKWISE 1/4 turn to set pad clearance
✔ Confirm system air pressure is between 100–120 psi.
✔ Block and secure wheels to prevent any movement.
✔ Depress the emergency brake release button on the dash to release spring brakes.
✔ Only after the wheels are secure and spring brakes are released should you proceed with caliper adjustment.
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Warranty Information
