Description
Genuine Eaton Fuller A5000 OEM range slave valve assembly for Fuller heavy-duty manual transmissions, replacing service numbers 455-5007, 455-5007CD, S8030, DHD-455-5007, and DHD-455-5007CD. The A5000 is the air-actuated valve mounted to the transmission case that switches main-box range air on a shift, sending the high / low range piston between gear sets in 9-, 10-, 13-, 15-, and 18-speed Fuller boxes.
Signs You Need a New Range Slave Valve
- Hard or impossible range shifts (won’t move from low range to high range)
- Range engages slowly or hangs between high and low
- Audible air leak from the valve body or supply line
- Range shift only completes after you let off the throttle / clutch repeatedly
- Visible oil weeping from the valve mounting face
Specifications
| Manufacturer | Eaton Fuller (Genuine OEM) |
|---|---|
| Part Number | A5000 (also written A-5000) |
| Part Type | Range Slave Valve Assembly |
| Body Material | Cast aluminum |
| Ports | 1 supply, 1 control, 3 delivery (all 1/8 in NPT) |
| Actuation | Pneumatic, signal from shift-knob air valve |
| Mounting | Bolts to the transmission case |
| Transmission Compatibility | Eaton Fuller HD manual transmissions, including RT, RTL, RTLO, RTO, and Super 18 ranges |
Cross References
This valve replaces or is equivalent to the following part numbers:
- Eaton Fuller: A5000, A-5000, 455-5007, 455-5007CD, S8030
- DHD (DiHelco): DHD-455-5007, DHD-455-5007CD
- Aftermarket Fuller-style: A5000-B, A5000-G (Fleet-Products / drop-in equivalents)
Applications
This range slave valve fits the following Eaton Fuller transmission families:
- Fuller RT-Series 9- and 10-speed (RT-6610, RT-7608LL, RT-8709, RT-8908LL, RT-11609A and similar)
- Fuller RTO-Series overdrive 9- / 10- / 13-speed (RTO-11607L, RTO-12513, RTO-12609A, RTO-14613, etc.)
- Fuller RTL / RTLO 13-, 15- and 18-speed (RTLO-12913A, RTLO-14613A / 14618A, RTLO-16913A / 16918B, RTLO-18913A, RTLO-22918B)
Representative trucks using these transmissions:
- Freightliner Cascadia, Columbia, Coronado, Century, FLD with Fuller manuals
- Kenworth W900, T800, T660, T2000 with Fuller manuals
- Peterbilt 379, 386, 387, 389 with Fuller manuals
- International / Navistar 9000-series and ProStar with Fuller manuals
- Mack Granite, Pinnacle, Vision and Volvo VNL when spec’d with Fuller manuals
Verify your transmission model tag before ordering. Replace the o-ring and gasket at install and confirm 90–120 psi clean air supply at the valve.
