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Cummins Shut Off Solenoid 6BT 5.9L 3935430 3935432

Cummins Shut Off Solenoid 6BT 5.9L 3935430 3935432

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Fuel shut off solenoid designed specifically for Cummins 5.9L 6BT diesel engines. Essential safety component that controls fuel flow to the injection pump, allowing the engine to start and stop properly. Direct replacement for OEM solenoid with precise fit and reliable performance. 

OEM Part Numbers:

• 3935430
• 3935432
• SA-4755-24

Engine Compatibility:

• Cummins 5.9L 6BT diesel engines

Equipment Applications:

• Komatsu PC200 excavators
• Hyundai R210-5 excavators
• Hyundai R220-5 excavators
• Cummins-powered tractors
• Industrial equipment with 6BT engines
• Construction machinery
• Marine applications

Function:

The fuel shutoff solenoid electrically controls fuel delivery to the injection pump. When energized (ignition on), it allows fuel to flow. When de-energized (ignition off), it stops fuel flow to shut down the engine. This is a critical safety component that prevents engine run-on and controls starting/stopping.

Key Features:

• Direct OEM replacement design
• Meets Cummins specifications and standards
• Precise fit for 5.9L 6BT engines
• High-quality construction for reliability
• Easy installation with direct plug-in connection

Installation Note:

Direct replacement for original solenoid. Verify part number compatibility before ordering. Installation requires basic mechanical and electrical skills. Ensure proper wire connections and mounting to prevent fuel leaks or starting issues.

Ships fast from our USA warehouse with same-day processing on orders placed before 3 PM PST.

Not sure it fits? Call (818) 261-3896

Join 53,000+ satisfied customers

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COMPATIBILITY

Fits These Engines & Equipment

✓ Cummins 5.9L 6BT Diesel Engines
✓ Komatsu PC200 Excavators
✓ Hyundai R210-5 Excavators
✓ Hyundai R220-5 Excavators
✓ Cummins-Powered Tractors
✓ Construction & Industrial Equipment

WHAT'S INCLUDED

Fuel Shut Off Solenoid

🔌
Shut Off Solenoid
⚙️
Direct OEM Replacement
🔧
6BT 5.9L Specific
✅
Part #3935430
🛡️
Cummins Specifications
🚚
Same-Day Shipping

DIAGNOSIS

Signs Your Shut Off Solenoid Failed

If you're experiencing any of these symptoms, your fuel shut off solenoid likely needs replacement.

⚠️ Engine won't start or cranks but won't fire
⚠️ Engine shuts off unexpectedly while running
⚠️ No clicking sound when turning ignition on
⚠️ Engine runs only when solenoid is bypassed

CUSTOMER REVIEWS

Trusted by Tractor Owners Nationwide

★★★★★ 4.6 out of 5 stars (927 reviews)
★★★★★
Perfect Fit
VERIFIED REVIEW

"Exact replacement for my Ford 4600. Installed in 20 minutes and tractor fired right up. Quality part at a great price. Will order from Arko again."

Mike T. • Verified Buyer • March 2026
★★★★★
Fast Shipping & Great Support
VERIFIED REVIEW

"Ordered Monday morning, received Wednesday. Called with a fitment question and spoke to someone who actually knew tractors. Part works perfectly on my Kubota."

James R. • Verified Buyer • March 2026
★★★★★
Better Than OEM
VERIFIED REVIEW

"This gasket kit saved me hundreds compared to dealer pricing. Quality is excellent, everything fit perfectly. No leaks after 50+ hours of operation."

David L. • Verified Buyer • February 2026

FAQ

Common Questions

How do I know if this solenoid fits my Cummins 6BT engine?

This solenoid is specifically designed for Cummins 5.9L 6BT diesel engines. Commonly found in Komatsu PC200, Hyundai R210-5/R220-5 excavators, tractors, and industrial equipment. Verify your part number matches 3935430, 3935432, or SA-4755-24. Confirm your engine is a 6BT model (not 4BT or other Cummins variants). Call (818) 261-3896 if you need help verifying compatibility.

What does a fuel shut off solenoid do?

The fuel shut off solenoid controls fuel flow to the injection pump. When you turn the ignition key on, the solenoid energizes and allows fuel to reach the engine. When you turn the key off, it de-energizes and stops fuel flow to shut down the engine. It’s an essential safety component that prevents engine run-on and controls starting/stopping.

Can I install this solenoid myself?

Yes, if you have basic mechanical and electrical skills. Installation involves: (1) disconnecting the old solenoid wiring, (2) removing mounting bolts, (3) installing the new solenoid, and (4) reconnecting the electrical connector. Make sure connections are tight and properly sealed to prevent fuel leaks. If you’re not comfortable working with fuel systems and electrical components, have a diesel technician install it.

Is this the same as the 12V solenoid for smaller Cummins engines?

No, this solenoid is specifically for the 6BT 5.9L engine. Different Cummins engines use different solenoids with varying voltage and mounting configurations. Make sure you order the correct solenoid for your specific engine model. The 6BT version has different electrical specifications than 4BT or other Cummins engines.

What's your return policy

We offer free returns within 30 days if the part doesn't fit or you're not satisfied. Parts must be unused and in original packaging.

Do you offer technical support?

Yes. Call (818) 261-3896 and we'll help you confirm fitment, answer installation questions, or troubleshoot issues.

How long does shipping take?

Orders ship same-day if placed before 3 PM EST. Standard delivery is 3-5 business days.

Ready to Get Your 6BT Running Again?

Direct replacement fuel shut off solenoid for Cummins 6BT 5.9L diesel engines. Fix no-start issues and restore proper shutdown. Ships same-day.

ADD TO CART — $39.99
📞 Questions? (818) 261-3896