Description
TRANSMISSION VALVE
PART NUMBER(S):
Fleet Products: A4900-G
OE: A4900, KA4900, A6913
Automann: 174.6913
DESCRIPTION:
Model: Eaton Fuller 13-Speed Manual Transmission Range Valve
Vehicles: Compatible with Eaton Fuller Roadranger 613, 6613, 9513, 12513, 14613 series
• Valve Type: Pneumatic/manual air-actuated range shift valve
• Function: Controls LO/HI range selection in Roadranger-style 13-speed transmissions
• Mounting Style: Shift knob mount; installs over shift tower using internal screws
• Port Sizes: 1/16" NPT (5 ports total – supply and delivery)
• Material: High-intensity aluminum and molded plastic (aftermarket variant)
• Actuation: Manual toggle or push-pull, actuates internal air circuit for range selection
• Weight: Approx. 0.72 lbs
• Installation: Two-piece body design; slides over knob and secures with internal screws
• Features: Late ergonomic design, OE-style internal air channels, blue switch on newer variants
Applications:
Designed for use in Eaton Fuller 13-speed manual transmissions in heavy-duty Class 8 trucks. Manages range shift via air signal from driver’s shift knob. Common in long-haul, vocational, and mixed-use vehicles equipped with Roadranger drivetrains. Direct-fit replacement for OEM range valves with standardized 1/16" NPT port configuration.
CROSS-REFERENCE(S):
A4900, KA4900, A6913, A6913B, A7013, S2578, 25MY55M, 3088A4900, 3088A6913, FULA6913, FUL A6913, FUL S2578, M-A6913, 401294, 401297, 3695, 36950, 36950A, EF36950, EF36950HP, LSV-3695, M13A-6913, M13A6913, 14384, TRV6913, TRA6913, 3972719, 174.6913, 455-5002, 455-5002CD, DMA6913, 598-290-C, NSFSA6913, SMRA6913, ZBFA6913, ATV6913, K1826, A-2578, FUL A 6913, FUL A6913, FUL A 2578, 300-A6913A cross-reference listing means this part may be a compatible replacement for these part numbers based on OEM or distributor data.
IMPORTANT INSTALLATION NOTES:
✔ Remove existing shift knob and unscrew bottom cover (if applicable)
✔ Place valve assembly over shift lever and secure using internal screws
✔ Reconnect all 1/16" NPT air lines to correct port positions as per OEM routing
✔ Ensure air lines are free of leaks and connections are secure
✔ Verify range shift functionality (LO/HI) before final assembly and vehicle return-to-service
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