Find Input Part OEM number or machinery model TRANSMISSION-ONHIGHWAY Select model TRANSMISSION-ONHIGHWAY Caterpillar parts: For full view, you need register CX28 TRANSMISSION-ONHIGHWAY CX28 T3X (2007) CX31 TRANSMISSION-ONHIGHWAY CX31 B3X (2006) CX31 D9F (2011) CX31 D9R (2011) CX31 E2R (2011) CX31 HTC (2012) CX31 PTT (2011) CX31 PTW (2011) CX31 PTX (2006) CX31 S4H (2015) CX31 S7H (2016) CX35 TRANSMISSION-ONHIGHWAY CX35 W3X (2007) online parts diagram catalog Search for genuine and aftemarket cat parts.