Peterbilt 388 Refrigerators & Mounting Kits

Frequently Asked Questions About Peterbilt 388 Refrigerators & Mounting Kits

Will a refrigerator and mounting kit fit my Peterbilt 388 without modification?

Most refrigerators and mounting kits sold in this category are designed to fit the factory refrigerator space or existing mounting brackets on the Peterbilt 388. However, cab configuration, model year, and whether your truck came with a factory refrigerator option can affect fit. Check the listed specifications and compare them to your cab's dimensions and existing bracket layout before ordering to avoid unnecessary modifications.

What size refrigerator will fit in the available space?

Refrigerator size compatibility depends on the cubic foot capacity and exterior dimensions of the unit compared to the cutout or mounting area in your Peterbilt 388. Always measure your available space, including depth and height clearance around the sleeper or cab area, and compare it to the product's listed dimensions rather than relying on the vehicle model alone, since interior configurations can vary between trucks.

Do I need a separate mounting kit, or does the refrigerator come with one?

This varies by product and manufacturer. Some refrigerators are sold as complete units that include the necessary mounting hardware, while others require a separate mounting kit purchased individually. Review each product listing carefully to confirm whether mounting components are included or need to be added to your order.

What power source do these refrigerators require, and will it work with my truck's electrical system?

Most 12-volt truck refrigerators are designed to run off your Peterbilt 388's existing electrical system, but power draw and wiring requirements can differ between models. Confirm the voltage requirements and amperage draw listed for each unit, and make sure your truck's electrical setup, including any auxiliary battery systems, can support continuous operation without excessive battery drain.

How difficult is installation, and can I do it myself?

Installation difficulty depends on the specific refrigerator and mounting kit, as well as whether you are replacing an existing unit or installing one for the first time. Replacing a refrigerator using existing brackets is generally straightforward, while a first-time installation may require additional wiring, bracket fabrication, or cutting depending on your cab layout. If you are unsure about the wiring or mounting process, having a qualified technician assist with installation is recommended to avoid damage to the unit or your truck's interior.