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Q21-1077-3-103 Genuine Paccar Chassis Control Module (CCM) MUX3

P/N: Q21-1077-3-103 Manufactured by: Paccar
Original price $2,175.00 - Original price $2,175.00
Original price
$2,175.00
$2,175.00 - $2,175.00
Current price $2,175.00
1 in Stock
Condition: New
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At Line Truck Parts LLC, we are committed to providing reliable automotive parts and a transparent customer experience. Eligible parts purchased directly from our website are covered by a 2-Year Limited Warranty, giving you added confidence in your purchase. Learn More

Product Overview

The Q21-1077-3-103 is a genuine Paccar chassis control module designed for specified Kenworth T680, T660, and Peterbilt 567, 579, and 389 applications. This MUX3 module coordinates chassis-related functions using vehicle dynamics information.

Product Features

The Q21-1077-3-103 chassis control module is manufactured to Paccar factory specifications for coordinating electronic chassis functions.

  • Monitors wheel-speed information as part of the vehicle dynamics data used during electronic chassis control operation.
  • Tracks steering-angle information to account for steering input within the module’s monitoring of vehicle operating conditions.
  • Processes yaw-rate information as one of the motion inputs used by the chassis control system.
  • Monitors vehicle body motion to provide movement information for the module’s chassis-related control functions.
  • Uses vehicle dynamics data to make real-time control adjustments as operating conditions change during vehicle use.
  • Coordinates chassis functions with anti-lock braking, traction control, and stability control systems as described in the supplied application information.

Technical Specifications

Condition New
Part Number Q21-1077-3-103
Brand Paccar
Part Type Chassis Control Module (CCM)
Module Designation MUX3
Vehicle Applications Kenworth T680; Kenworth T660; Peterbilt 567; Peterbilt 579; Peterbilt 389
Weight 8.20 lb


Installation Notes

The Q21-1077-3-103 should be matched to the truck’s existing module identification and MUX3 configuration before installation. Compare the electrical connections and mounting arrangement with the original unit.

Verify exact part number, vehicle model, and chassis system configuration before installation.