OEM / REF: pilotpart502739SKU: pilotpart502739
2021B ET4 ET IV Communication Adapter 538-5051 478-0235 For CAT Heavy Equipment is a Communication Adapter replacement part for Caterpillar Electrical Parts, categorized under Electrical Parts > Communication Adapter. Use OEM part number pilotpart502739 and confirm machine model, engine model, and serial details bef...
This Communication Adapter is indexed for CAT s: For CAT Heavy Equipment. Compare reference number pilotpart502739 against the label on your existing Caterpillar component before ordering.
Before checkout, compare OEM part number pilotpart502739, connector layout, mounting position, and machine serial number. For high-value or fitment-sensitive parts, submit the fitment form below so support can verify the match.
Match the OEM or reference number first, then verify machine model, engine model, serial number, connector layout, mounting points, and old part photos.
Yes. Send the old part number, machine plate, and photos through the fitment inquiry form. Support can review possible replacements or alternatives.
Products are indexed as replacement parts unless explicitly marked otherwise. Always compare reference numbers and confirm fitment before purchase.
