Komatsu 3BA-61-51511 Control Valve Assy for FB15/18EX-8

Overview

The Komatsu 3BA-61-51511 CONTROL VALVE ASS’Y is the hydraulic control valve assembly for Komatsu EX-8 series electric forklifts. This valve directs pressurized oil to the lift and tilt circuits, so when it wears, symptoms such as slow mast response, drifting forks, or inconsistent lifting become noticeable. Fitting the correct 3BA-61-51511 for FB10/14EX-8 and its sister models restores precise hydraulic control and helps protect the rest of the hydraulic system from strain.

Compatibility

The 3BA-61-51511 CONTROL VALVE ASS’Y is listed for two model families within the Komatsu EX-8 electric forklift lineup:

• FB10/14EX-8 series – FB10/14EX-8 and FB10/14EXF-8 variants
• FB15/18EX-8 series – FB15/18EX-8, FB15/18EX-8-EC, FB15/18EXF-8, FB15/18EXG-8, FB15/18EXG-8-EC, and FB15/18EXGF-8 configurations

No alternative OEM cross-reference numbers are published for this part, so the most reliable way to confirm fitment is to match the 3BA-61-51511 number stamped on your existing valve or listed in your forklift’s parts manual. If you cannot locate the number, send us your forklift model and serial number and our team will verify the correct part before you order.

Quality and Reliability

Control valves work under continuous pressure cycles, making them one of the harder-working components on an electric forklift. As a Komatsu-branded replacement, the 3BA-61-51511 is built to the original specification for the EX-8 range, with correct port positions, flow passages, and mounting dimensions so it bolts into place without modification. Keeping the hydraulic control circuit within specification also reduces unnecessary load on the pump, cylinders, and hoses, helping the whole system last longer.

Installation and Maintenance Tips

• De-energize the truck before starting: disconnect the battery and relieve hydraulic pressure, since these EX-8 models are electric-powered.
• Photograph hose and pipe routing before removal so the new valve can be reconnected exactly the same way.
• Cap or plug open ports immediately to keep dirt out of the hydraulic circuit.
• Fit new O-rings and seals rather than reusing old ones, and tighten fittings to the torque values in the Komatsu service manual.
• Check the condition of the hydraulic oil; contamination is a leading cause of control valve wear, so replace the oil and filter if it is dirty.
• After installation, cycle the lift and tilt functions slowly several times, bleed any trapped air, and inspect all joints for leaks.

Why Order from Us

forkliftpartssearch.com specializes in forklift replacement parts, and this product page is built around the exact Komatsu OEM number 3BA-61-51511 so you can match it against your existing valve with confidence. Our team works with Komatsu part numbering every day and can help you confirm compatibility using your model and serial number, answer technical questions about the CONTROL VALVE ASS’Y, and point you toward related hydraulic components for your FB10/14EX-8 or FB15/18EX-8 forklift. Clear listings, accurate part data, and responsive support are what we build our service around.