Caterpillar CT315-3904 Seat Assembly

Aftermarket seat assembly for Caterpillar industrial equipment. Replaces OEM part number CT315-3904. Verified fitment for 6 machine models including TH336, TH337, TH406, TH407, TH407C, TH514C. Confirm your machine model and serial number before ordering — seat rails and switch wiring can vary by production year. Request a quote for availability and freight to your location.