Peterbilt 567/579 Tilt, Trailer & Signal Handles

Frequently Asked Questions About Peterbilt 567/579 Tilt, Trailer & Signal Handles

What do tilt, trailer, and signal handles actually control on my Peterbilt?

These handles are the interior cab controls mounted on or near the steering column. The tilt handle adjusts the steering wheel position, the trailer hand valve controls the trailer brakes independently of the service brakes, and the signal handle (turn signal stalk/lever) operates your turn signals, and in many cases high beams and hazard functions depending on how your truck is wired. They are separate components that typically get replaced individually rather than as a single unit.

Will these handles fit both the Peterbilt 567 and 579, or do I need to check my model year?

Most handles listed in this category are designed to fit both the 567 and 579 due to their shared cab and dash platform, but fitment can still vary by production year and dash configuration. Always check the listed year range and part number on each product page, and compare it against your VIN or existing handle before ordering to avoid a mismatch.

How do I know if I need a replacement because of wear versus a wiring or valve issue?

If the handle feels loose, cracked, or does not return to its resting position, that is usually a physical wear issue and a direct replacement will solve it. If your turn signals do not activate, your trailer brakes do not respond, or the tilt function feels fine mechanically but nothing happens electrically or pneumatically, the problem may be in the wiring, switch contacts, or air valve rather than the handle itself. In that case a diagnostic check before purchasing is a good idea so you are not replacing a part that was not actually the problem.

Are these handles a straightforward bolt-on replacement, or is special tools or air line work required?

Signal handles generally involve removing a steering column cover and disconnecting an electrical connector, which most drivers or shop techs can do with basic hand tools. Trailer hand valves are connected to the air brake system, so installation involves working with air lines and fittings, and should be done by someone comfortable with air brake components to ensure a proper, leak-free connection. Tilt handles are typically mechanical and involve a simple pin or linkage connection at the steering column.

What finish and material options are available, and will they match my existing interior?

These handles are commonly available in chrome, black, and sometimes textured or painted finishes to match factory interior trim. Material is typically a durable plastic or metal housing depending on the specific handle and its function. Check the product photos and description for the exact finish, since factory interiors can vary slightly by trim package and production year.