Product Description
REMAN AIR DISC CALIPER – MAXXUS LH 12° STANDARD MOUNT WITH CARRIER
PART NUMBER(S):
Fleet Products: FP6403221040WCX | OE: 6403221040, 6403220500 | Automann: 158.6403220650
DESCRIPTION:
Model: Wabco MAXXUS
Engines: N/A
Vehicles: Freightliner Cascadia (2018+), Coronado (2020+); Western Star 49X, 57X
• Brake Side: Left-Hand (LH)
• Angle: 12° Mount (Standard Carrier)
• Mounting Style: Radial mount with pocket bridge (8x M16 bolts)
• Caliper Type: Reman air disc with integrated carrier
• Ports: Dual M14x1.5 ISO
• Rotor Compatibility: 430 mm diameter, 45 mm new / 39 mm min thickness
• ABS Integration: WABCO 4S/4M compliant (no tone ring)
• Pistons: Dual 60 mm stainless steel
• Weight: 83 lbs (with carrier)
Applications:
For use on front LH steer axles of heavy-duty trucks with 12° mount Wabco MAXXUS air disc brake systems. Fitment for standard-mount caliper carriers on Freightliner and Western Star platforms. Not for use on RH wheels, trailers, or non-MAXXUS systems.
CROSS-REFERENCE(S):
6403221040, 6403220500, FP6403220500WCX, 158.6403220650, WAB6403221040
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 12° LH steer axles with MAXXUS systems and standard carriers
✔ Replace both LH and RH calipers simultaneously for optimal balance
✔ Use approved hardware kit
✔ Verify fitment to rotor (430 mm OD / 45 mm new thickness / 285.75 mm bolt circle)
✔ Torque carrier bolts to 280–310 Nm (207–229 lb-ft)
✔ Torque brake fittings to 40–45 Nm (30–33 lb-ft)
✔ Pad set D2061HK sold separately
✔ Perform bedding: 20 stops from 30 mph before full-duty use
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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