Komatsu 3FD-61-21310 Control Valve Assy | FD50/60-7 Forklift

Overview

The Komatsu 3FD-61-21310 CONTROL VALVE ASS’Y is a direct-fit hydraulic control valve assembly for Komatsu internal combustion forklifts in the FD50/60/70 series. The control valve plays a central role in the hydraulic system, directing pressurized oil to the lift, tilt and auxiliary circuits so the operator gets smooth, predictable mast and attachment response. Because this assembly manages multiple hydraulic functions in one unit, it is one of the most important service components on these heavy-duty diesel forklifts. If a control valve begins to leak internally or stick, operators often notice drifting forks, slow lift speeds or jerky tilt action — replacing the assembly with the correct 3FD-61-21310 unit restores proper hydraulic function.

Compatibility

This control valve assembly is specified for Komatsu diesel forklifts across the 7-series and 8-series FD50/60/70 lineup, including:

• 7-series models: FD50/60-7, FD50E/60E-7, FD70-7 and FD70-7-US
• 8-series models: FD50/60-8, FD50/60-8-EC, FD70-8 and FD70-8-US

In practical terms, the 3FD-61-21310 for FD50/60-7 also serves the related -8, EC and US variants within the same series. Always verify the part number stamped on your existing valve or check your forklift’s parts manual before ordering to confirm fitment.

Quality and Reliability

Hydraulic control valves operate under high pressure and constant cycling, so build quality matters. This Komatsu CONTROL VALVE ASS’Y is manufactured to match the original unit’s dimensions, port positions and pressure characteristics, so it drops into the existing hydraulic circuit without modification. Precision-machined spools and bodies, together with durable seals, help minimize internal leakage and maintain consistent lift and tilt performance over long service intervals.

Installation and Maintenance Tips

• Relieve system pressure and disconnect the battery before removing the old valve.
• Label hydraulic lines during disassembly so ports are reconnected correctly.
• Replace O-rings and seals at the fittings when installing the new assembly.
• Torque mounting bolts and fittings to Komatsu specifications.
• After installation, bleed air from the hydraulic circuit and cycle the lift and tilt functions slowly, checking for leaks.
• Keep hydraulic oil and filters clean — contaminated fluid is a leading cause of control valve wear.

Why Order from Us

At forkliftpartssearch.com we specialize in forklift spare parts and understand how costly downtime is for material handling operations. When you order the 3FD-61-21310 CONTROL VALVE ASS’Y from us, you get fitment support from a team that works with Komatsu part numbers every day, clearly identified parts, and a straightforward ordering process so your FD50/60/70 series forklift gets back to work sooner. If you are unsure whether this valve matches your machine, contact us with your forklift’s model and serial number and our team will confirm compatibility before you buy.