Electrical, Modules & Harnesses

Browse truck control modules, wiring harnesses and other electrical components. Start with the function of the part, then compare its complete manufacturer number and vehicle application. Check each listing for condition, connector details and included components; collection membership does not confirm fitment.

Part selection, fitment and ordering guidance

Select the right electrical component

Send the truck VIN or engine serial number, the current part number and photos of the label and connectors. Identify whether you need an engine controller, cab controller, transmission-related component, harness or another electrical item. Similar-looking components can serve different systems.

Have wiring, power supply and related faults checked using the manufacturer's service procedure before replacing a module.
Confirm any programming, calibration or setup requirements and who will perform the work.
Electronics have no change-of-mind returns, including unopened items; valid defect, damage and ATP wrong-item claims have a separate process.

Check the listing for new, used or remanufactured condition and current availability. ATP is an independent reseller, not an authorized manufacturer dealer. ATP warranty terms and return eligibility apply; manufacturer coverage is not assumed.

Request a fitment check with your vehicle and part information before ordering, or visit FAQ & Help for ordering and support guidance.