Optimize the performance of your Fuller transmission with the Fortpro Slave Valve. Engineered for impeccable precision and exceptional durability, this slave valve ensures smooth and efficient gear changes every time. Compatible with Fuller transmissions and replacing OEM numbers A-4688 and 422159C92, this valve is the perfect solution to keep your transmission running smoothly. Specifications: Brand: Fortpro Vehicle Type: Semi-Trucks / Heavy Trucks Product Department: Transmission Product category : Valves Part Type: Slave Valve / Transmission Valve OEM Reference #: A-4688, A4688 Thread Type: NPT Supply Ports: 2 Supply Ports Thread: 1/8 in. - 27 NPT Delivery Ports: 2 Delivery Ports Thread: 1/8 in. - 27 NPT Control Port: 1 Control Port Thread: 1/8 in. - 27 NPT Exhaust Port: 1 Exhaust Port Thread: 1/8 in. - 27 NPT Operating pressure Max: 10 bar Operating Medium: Air Operating Temperature Range: -40C to / a +80C Mounting Screws: 4 - M6 Applications: Fuller Transmissions CrossReference: Automann: 174.A4688 Fuller: A-4688, A4688