OEM / REF: 31221SKU: pilotpart849363
A/C Compressor Ass'y 421-07-31221 20Y-979-3110 20Y-979-3111 Fit for Komatsu is a A/C Compressor replacement part for Komatsu Machinery & Equipment, categorized under Machinery & Equipment > A/C Compressor. Use OEM part number 31221 and confirm machine model, engine model, and serial details before checkout.
This A/C Compressor is indexed for Komatsu Komatsu D155AX-5; D275AX-5E0; D65EX-15E0; D65PX-15E0; D65WX-15E0; D85EX-15; D85PX-15. Compare reference number 31221 against the label on your existing Komatsu component before ordering.
Before checkout, compare OEM part number 31221, 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.
