VI8972091152 Engine Stop Solenoid Assembly

Product Overview

The VI8972091152 Engine Stop Solenoid Assembly is a critical fuel system component for Kobelco SK60-8 and SK75-8 excavators. This engine stop solenoid, also known as a fuel shut-off solenoid or fuel cut-off solenoid, is responsible for safely stopping the engine by cutting off the fuel supply when the ignition key is turned to the OFF position.

The main function of the shutoff solenoid is to stop the engine after the ignition switch has been placed in the OFF position. When the engine is in use (running), the shutoff solenoid is inactive (OFF), meaning it has no influence on the engine. When the ignition switch is placed in the OFF position, the shutoff solenoid becomes active (ON), energizing the magnetic coil which draws the piston inward to move the fuel control rack and stop the engine .

The Kobelco SK60-8 and SK75-8 are compact excavators widely used in construction, utility work, landscaping, and rental fleets. Both models feature solenoid valves for critical machine functions—the SK60 has a safety lock solenoid valve and travel 1,2 speed solenoid valves, while the SK75 features proportional solenoid valves including SV-4 safety lock, SV-3 travel speed, and SV-1 swing brake .

When the stop solenoid fails due to coil burnout, mechanical sticking, or electrical issues, the engine may fail to shut off when the key is turned off, or may not start at all. Replacing a faulty solenoid with this VI8972091152 assembly restores proper fuel control and reliable engine shutdown.

Key Features

• OEM Specification Compliance: Manufactured to meet the exact dimensional and performance specifications required by Kobelco for the SK60-8 and SK75-8 excavators.

• Precision Engine Shutdown: Activates when the ignition is turned off to cut fuel supply and safely stop the engine, preventing engine run-on .

• Durable Solenoid Coil: High-quality coil designed to withstand continuous operation and resist heat degradation.

• Corrosion-Resistant Construction: Housed in durable materials to withstand the harsh engine bay environment.

• Direct Replacement: Matches OEM mounting dimensions and electrical connections for a perfect fit with no modifications required.

• 24V System Compatible: Designed for the standard 24V electrical system on Kobelco excavators.

• Essential for Safety: Ensures the engine shuts down completely when the ignition is turned off, preventing accidents during refueling or maintenance.

Compatibility

This engine stop solenoid assembly is a direct replacement for the following applications:

Compatible Excavator Models

• Kobelco SK60-8

• Kobelco SK75-8

Part Number Reference

Also Known As: Engine Stop Solenoid, Fuel Shut-Off Solenoid, Fuel Cut Solenoid, Engine Shutdown Solenoid, Stop Solenoid Assembly

Please verify your machine’s serial number and compare with your original part before purchasing.

How the Engine Stop Solenoid Works

The engine stop solenoid is an essential component of the fuel system that ensures safe engine shutdown :

Normal Operation (Engine Running)

When the engine is running, the stop solenoid is in its inactive (de-energized) state. The plunger is retracted, allowing the fuel control rack to move freely and the engine to receive fuel.

Engine Shutdown

When the ignition key is turned to the OFF position, the engine stop relay is energized, which in turn energizes the stop solenoid. The magnetic coil draws the piston inward, which pulls the stop lever and moves the fuel control rack to the no-injection position, cutting off the fuel supply and stopping the engine .

After Shutdown

After the engine completely stops, the solenoid returns to its initial position. The piston typically returns to the inactive position approximately 8-10 seconds after shutdown .

Signs Your Engine Stop Solenoid Needs Replacement

The engine stop solenoid can fail due to coil burnout, mechanical sticking, or electrical issues. Replace your VI8972091152 solenoid if you observe:

1. Engine Won’t Shut Off: The engine continues to run even when the ignition key is turned to the OFF position. This is the most common symptom of a failed stop solenoid.

2. Engine Won’t Start: If the solenoid sticks in the closed position, it prevents fuel from reaching the engine, resulting in a no-start condition.

3. Intermittent Shutdown: The engine shuts off unexpectedly during operation or fails to start intermittently.

4. No Clicking Sound: When the key is turned on or off, no audible click is heard from the solenoid area.

5. Diagnostic Fault Codes: The monitor panel displays fuel system or solenoid-related fault codes.

6. Electrical Issues: Blown fuses or tripped relays in the engine stop circuit may indicate a failing solenoid.

7. Visible Damage: Cracked housing, melted coil, corroded connector, or physical damage.

8. Hard Starting: The engine cranks for an extended period before starting, possibly indicating the solenoid is not opening fully.

Benefits

Why choose our VI8972091152 Engine Stop Solenoid Assembly for your Kobelco excavator?

1. Ensures Safe Engine Shutdown: A properly functioning stop solenoid ensures the engine shuts down completely when the ignition is turned off, preventing accidents and fuel waste.

2. Eliminates Engine Run-On: Replaces a faulty solenoid to stop the dangerous condition of the engine continuing to run after the key is turned off.

3. Restores Reliable Starting: A new solenoid ensures the fuel control rack can move freely for proper fuel delivery during starting.

4. Prevents Battery Drain: A malfunctioning solenoid may draw power continuously. Replacement prevents battery drain.

5. Essential for Safety: Proper engine shutdown is critical for safe refueling and maintenance.

6. OEM-Quality Assurance: Manufactured to meet or exceed original equipment standards for durability and performance.

7. Direct Replacement: Engineered for straightforward installation with no modifications required.

8. Cost-Effective Repair: Replacing the solenoid is significantly cheaper than major fuel system repairs.

Installation Tips

• Professional Installation Recommended: Stop solenoid replacement requires fuel system knowledge and proper electrical testing. Professional installation by qualified technicians is strongly recommended.

• Disconnect Battery: Always disconnect the battery negative terminal before working on electrical components.

• Locate the Solenoid: The engine stop solenoid is typically mounted on or near the fuel injection pump.

• Inspect Wiring: Before condemning the solenoid, test the wiring harness and relay to ensure they are supplying proper voltage .

• Check Coil Resistance: Measure the resistance between terminals to verify the coil is within factory specifications. A faulty coil will show open or short circuits .

• Use Correct Torque: Follow the service manual for mounting bolt torque specifications. Over-tightening can damage the solenoid body.

• Test Operation: After installation, start the engine and verify it shuts off properly with the key.

• Clear Fault Codes: Use a diagnostic tool to clear any stored fault codes after installation.

Why Choose Our VI8972091152 Engine Stop Solenoid Assembly?

We understand that the Kobelco SK60-8 and SK75-8 excavators rely on reliable fuel system components for safe and efficient operation. The engine stop solenoid is a critical safety component that ensures the engine shuts down completely when the ignition is turned off.

Our VI8972091152 Engine Stop Solenoid Assembly is manufactured to meet OEM specifications, ensuring the correct electrical characteristics, mechanical fit, and reliable performance for your SK60-8 or SK75-8 excavator. Whether you are troubleshooting an engine that won’t shut off, addressing starting issues, or performing preventative maintenance, this direct-fit solenoid provides the reliable fuel control your machine requires.

Technical Specifications

Order your VI8972091152 Engine Stop Solenoid Assembly today and restore reliable engine shutdown to your Kobelco SK60-8 or SK75-8 excavator. In stock and ready for immediate worldwide shipping. Bulk pricing available for fleet maintenance.