Q21-6155-211 | Genuine Paccar® Electronic Shift Control

Description and Purpose:

New Electronic Shift Control RND 4 Position. Brand: Paccar®. Part number: Q21-6155-211. This OEM dashboard-mounted electronic gear selector is designed for seamless R-N-D control in heavy-duty commercial trucks. Includes 4-position selection for reverse, neutral, and drive. Compatible with Detroit DT12 transmissions on Peterbilt 579.

Why Replacement is Important:

Shift controllers are crucial for transmitting driver input to the transmission system. Faulty units may result in shifting delays, limited control, or transmission fault codes. Replacement ensures accurate gear selection and full operational safety.

Impact on Vehicle Performance:

Reliable shift signal transmission enables smooth transitions between gears and consistent drivetrain control. Faults can disrupt driving modes or affect the powertrain response.

Manufacturer Information:

Paccar® supplies genuine components for modern commercial trucks, engineered for precise interface with Detroit DT12 systems and advanced electronic powertrain architectures.

Tags & Category: Shift Controls, Electronic Shift Control, Gear Selector, RND Shift Lever, Engine Brake Selector, Transmission Controls, Freightliner Cascadia Parts, Automatic Transmission Switch, Heavy Duty Truck Shifter, Dashboard Controls, Detroit DT12 Compatible, 4 Position Shift Lever, Electronic Powertrain Control

Warranty:

Parts Finder Q offers a 365-days warranty for all types of parts in any condition. The -warranty applies exclusively to purchases made directly through our website (partsfinderq.com). Please note that purchases made through third-party platforms like eBay or Amazon are not covered by this warranty.