COGENG 3928161 Solenoid Valve | 24V OEM-Compatible for Hyundai HL760 / R290LC-3 / R280LC

 Decompose pictures

Parts list

NO	Number	Name	Qty
1	3903990	Screw-Hex Hed Cap	2
2	3913638	Screw-Hex Hed Cap	2
3	3923254	Bracket-Solenoid	1
4	3928161	Solenoid-Fuel Pump	1
1	3903990	Screw-Hex Hed Cap	2
2	3913638	Screw-Hex Hed Cap	2
3	3923255	Bracket	1
4	3930234	Solenoid	1
5	3930683	Nut-Lock	1

Installation decomposition diagram

Frequently Asked Questions

1. What exactly is this solenoid valve, and what does it control?
Part No. 3928161 is a 24-volt DC electro-hydraulic solenoid valve used on Hyundai construction equipment. Depending on the machine and its configuration, this solenoid typically functions as:

• On a wheel loader (HL760): A pilot control solenoid for the main hydraulic control valve, transmission control circuit, or park brake release system

• On excavators (R290LC-3, R280LC): A proportional or on/off solenoid controlling hydraulic pilot oil to main valve spools, swing brake release, travel speed shift, or power boost activation

This is not a "one function fits all" component. The same solenoid part number may serve different hydraulic functions on different machine models. Consult your machine's parts manual to confirm the exact application on your equipment.

2. Which Hyundai models does this solenoid valve fit?
COGENG lists compatibility with:

• Hyundai HL760 Wheel Loader (typically HL760 Dash-3, Dash-7, or Dash-9 series — verify your specific generation)

• Hyundai R290LC-3 Excavator

• Hyundai R280LC Excavator (generation not specified; confirm Dash-3 or Dash-7 variant)

Other models may also use this solenoid if they share the same hydraulic component architecture. Always cross-reference using your machine's OEM solenoid part number as stamped on the solenoid body or listed in the parts book.

3. Is this an on/off solenoid or a proportional solenoid?
Solenoid valve 3928161 can be either configuration depending on the application:

• On/Off (digital): Two-position solenoid — fully open or fully closed with 24V applied. Used for parking brake release, 2-speed travel shift, or simple diverter circuits.

• Proportional (PWM-controlled): Modulated solenoid where spool position is proportional to the applied current (typically controlled by a PWM signal from the machine controller). Used for fine pilot pressure control to main valve spools.

You must determine which type your machine requires. An on/off coil cannot be substituted for a proportional coil and vice versa — the electrical driver circuit and hydraulic performance are completely different.