Short answer: Mopar part numbers are usually 8 digits followed by two letters, such as 68123456AB. The two letters are the revision. Some service parts add a letter in front of the number.
How to read a Mopar number
- 8-digit base number: the part itself, for example
68123456. - Two-letter suffix: the revision.
AAis the first release,ABthe next, and so on. - Letter prefix (on some service parts): a letter before the number marks a service or remanufactured version of the same part.
Does the suffix matter?
Often a later revision replaces an earlier one, but not always. Hardware or software changes can make revisions incompatible. Search your full number with the suffix first. If you only find a different suffix, ask us before ordering.
Frequently asked questions
Where is the part number on a Jeep or Ram module?
On a label on the module case, usually near the barcode. See How to find the part number on your control module.
Do Chrysler modules need programming?
Many do, including PCMs and body modules tied to the anti-theft system. See Do I need to program a replacement module?
Find your module
Search the part number from your module’s label on Module Mountain, or shop by vehicle. Every module is refurbished to order, ships free by USPS Priority in the USA, and is covered by our one-year warranty (exchange and warranty policy). Can’t find your number? Email contact@modulemountain.com with a photo of the label and your VIN.