Caterpillar E320B E320C E320D Proportional Solenoid Valve 111-9916 KWE5K-31/40E30-137 Yellow Dot

Description

The 111-9916 proportional solenoid valve (KWE5K-31/40E30-137) offers versatile hydraulic flow control compatibility across the popular Caterpillar E320B, E320C, and E320D excavator series. This Yellow Dot identified valve operates at 24V and provides proportional control technology that adjusts hydraulic flow proportionally to electrical input signals from the machine’s electronic control modules. The valve plays a crucial role in various hydraulic functions across the E320 platform including travel speed control with variable terrain response, attachment flow regulation for thumbs and hydraulic tools, boom and arm priority settings, and auxiliary hydraulic circuit management. Caterpillar’s E320 series represents decades of hydraulic excavator engineering, and this valve fits seamlessly into the machines’ sophisticated hydraulic architecture. Engineered to Caterpillar’s exacting specifications, the valve features precision-ground spools for minimal leakage, high-efficiency electromagnetic coils for reliable response, and durable seals rated for high-pressure service. The proportional design enables smooth, variable hydraulic response that reduces shock loads on machine components while improving operator comfort during extended work cycles. This valve is ideal for restoring proper hydraulic system calibration on any of the compatible E320 series machines.