APPERFiT Peterbilt Door Latch Set — Left Driver & Right Passenger for 359/370/377/378/379 (2005 & earlier), OEM-Compatible with HL

APPERFiT door latch locks replace worn Peterbilt driver and passenger door latches for a precise OEM-compatible fit.

If your Peterbilt 359, 370, 377, 378, or 379 (2005 and earlier) is showing signs of a sticky, loose, or failing door latch, this pair of left-driver and right-passenger replacement locks restores secure closing and dependable operation. The set is engineered to match OEM dimensions and function, supplied new and backed by a one-year warranty for peace of mind.

Will these latches fit my Peterbilt model?

Yes — the APPERFiT latch set is made specifically to replace the original parts used on older Peterbilt cab doors. Each unit mirrors the OEM geometry so it installs where the factory locks sit and operates with the existing linkage and bolts.

• Fits Peterbilt 359, 370, 377, 378, 379 models (2005 and earlier)
• Replaces OEM numbers HLK2221 / HLK2222, 20-08229L / 20-08229R
• Includes both left (driver) and right (passenger) door latches

How does installation and compatibility work?

Installation follows the same mounting points as the original latch, so you can use existing fasteners and linkages in most cases. A basic set of hand tools is usually enough, and the design eliminates the need for custom modification when replacing the factory component.

• Direct-fit replacement matching OEM hole pattern and actuator positions
• Mounts to left driver and right passenger door panels
• Standard tools required; no welding or trimming needed

What improvements or benefits will I notice after replacing my latches?

Replacing worn latches restores smooth door operation and returns a solid, secure close that reduces rattling and potential door opening while driving. Because these are new parts built to OEM specs, they deliver consistent engagement and reduced wear on associated linkages.

• Smoother opening and closing with reliable catch engagement
• Reduced door noise and improved cabin security
• OEM-matching fit to prevent misalignment and premature wear

What does the package include and what warranty is provided?

The shipment contains one left-hand and one right-hand door latch, ready to install. APPERFiT supports the product with a one-year warranty and responsive customer support should questions or fit issues arise.

• 1 × LH Peterbilt door latch (driver side)
• 1 × RH Peterbilt door latch (passenger side)
• 1-year limited warranty and email support from APPERFiT

Who is this for: This replacement latch set is intended for Peterbilt owners, mechanics, and fleet maintenance teams working on 359/370/377/378/379 trucks built 2005 and earlier that need a reliable, OEM-compatible repair. If you’re restoring an older rig, fixing a noisy or stuck door, or preparing a truck for safe road use, this pair provides a straightforward, long-lasting solution without custom fitting.