A5015-G | Transmission Control Valve (8LL, 15 Speed, Deep Reduction) Blue Splitter, Black Hi/Lo Knob

TRANSMISSION VALVE

PART NUMBER(S):
Fleet Products: A5015-G
OE: A5015, KN5015, A6915R
Automann: 174.6915

DESCRIPTION:

Model: Eaton Fuller-Style Transmission Range Valve (Replaces both the range and deep reduction valve on Eaton Fuller transmissions)
Vehicles: Compatible with Eaton Fuller 8, 9, and 10-speed manual transmissions in Class 8 trucks
• Valve Type: Manual air-actuated range shift valve
• Function: Controls air flow to enable LO/HI range selection in Roadranger-style manual transmissions
• Mounting Style: Shift knob or panel mount on transmission lever
• Port Sizes: 1/16" NPT (supply and delivery ports)
• Installation: Two-piece housing slides over shift tower; secured with small screws
• Material: Durable metal body with molded plastic top cover
• Operation: Toggle or push/pull actuation depending on shift knob configuration
• Weight: Approx. 11.4 oz
• System Type: Air-operated slave valve system
• Unique Features: Late ergonomic design, blue switch, OE-grade internal components

Applications:
Used for range selection in Eaton Fuller Roadranger manual transmissions. Standard fitment in 8–10-speed heavy-duty truck applications. Suitable for linehaul, vocational, fleet, and mixed-duty operations where manual air range shifting is required. Ideal for OE replacement or service retrofits.

CROSS-REFERENCE(S):

A 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 two small screws on the bottom cover before installation
✔ Slide valve body over shifter shaft and align port orientation
✔ Secure valve with screws and reconnect all air lines per OEM diagram
✔ Confirm range valve operation (LO/HI) before vehicle return-to-service
✔ Ensure 1/16" NPT ports are fitted with compatible air fittings

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