Description
A4491-G - EATON FULLER MANUAL TRANSMISSION SELECTOR VALVE - 2 POSITION
PART NUMBER(S):
Fleet Products: A4491-G | Replaces OE: Eaton Fuller: A4491, A-4491 | Automann: 174.4491 | International: 490694C91 | Mack: 20QE2169AP2 | Ford: D8HZ7312C | PAI: 3694, 36940 | Meritor: R955A4491N
DESCRIPTION:
Model: Eaton Fuller Manual Transmission Range and Splitter Selector Valve
Vehicles: Heavy-duty trucks using compatible pneumatic manual transmission range or auxiliary splitter controls
• Valve Type: Two-position manual transmission selector valve
• Actuation: Driver-operated selector or air-shift knob
• Air Ports: 1/16"-27 NPT
• Selector Positions: Two
• Mounting: In-cab shift knob, selector plate, or console assembly
• Function: Directs compressed air between two transmission control positions
• Application: Range selection or auxiliary splitter control, depending on the transmission configuration
• Construction: Compact metal valve body
• Transmission Compatibility: Suitable for compatible Eaton Fuller-style 13-speed and 18-speed air-shift systems where the original valve function and port arrangement match
Applications:
Designed for manual transmission air-control systems requiring a two-position selector valve. Commonly installed within the gearshift knob or cab-mounted selector assembly to control high/low range or auxiliary splitter operation.
CROSS-REFERENCE(S):
FULA4491, M13A4491, 3088-A4491, 3088A4491, 032402, SM-3723FT, VTC-4945, DMA4491, 455-5009, 455-5009CD, 401291, A4491NP, A4491P, FUR-A-4491, NSFSA4491, S-5494, S5494, TDAR955A4491N, TRA4491, TRV4491, LSV-3694, 490694C, 490-694-C, NHD544-5009
A cross-reference listing means this part may be a suitable replacement for the listed part numbers. Always verify fitment before installation.
IMPORTANT INSTALLATION NOTES:
✔ Depressurize the transmission air circuit before removing or installing the valve.
✔ Mark each air line before removal and reconnect it according to the transmission pneumatic schematic.
✔ Confirm all valve connections use the correct 1/16"-27 NPT fittings.
✔ Verify that the valve is configured for the required range or splitter function before installation.
✔ Test both selector positions for correct transmission response and air leakage before returning the vehicle to service.
Warranty Information
