Peterbilt 357/378 Tilt, Trailer & Signal Handles

Frequently Asked Questions About Peterbilt 357/378 Tilt, Trailer & Signal Handles

What handles are included in this category?

This category covers the cab control handles commonly replaced on Peterbilt 357 and 378 models, including hood tilt release handles, trailer hand brake (trailer valve) handles, and turn signal handles or levers. These are the physical grips and levers drivers use daily to tilt the hood, operate the trailer brake valve, and signal turns.

Will these handles fit my specific Peterbilt 357 or 378 model year?

Most handles in this category are designed to match the factory fitment for 357 and 378 models, but cab configurations and dash layouts can vary by production year. Check the fitment details or part number listed on each product page, and compare it to your existing handle or your truck's build sheet before ordering to confirm a proper match.

Are these OEM parts or aftermarket replacements?

This category includes both OEM and aftermarket options. OEM handles are built to original Peterbilt specifications for a factory-correct fit and finish, while aftermarket handles offer a similar look and function, often at a lower cost. Product descriptions will note whether an item is OEM or aftermarket so you can choose based on your budget and preference.

What materials and finishes are available?

Handles are typically available in chrome-plated metal or durable plastic, depending on the specific part. Chrome options are popular for matching factory trim and holding up to daily handling, while plastic handles are often used for turn signal levers. Check individual listings for the exact material and finish of each handle.

How do I install a replacement tilt, trailer, or signal handle?

Installation steps vary by handle type. Tilt handles usually thread or bolt onto the existing release mechanism, trailer handles typically slide onto or bolt to the valve shaft, and signal handles often snap or screw onto the turn signal lever. Most replacements can be installed with basic hand tools, but we recommend referencing your Peterbilt service manual or the instructions included with the part to ensure correct alignment and secure attachment.