419-7640 Fuel Shutoff Solenoid | 12V Stop Solenoid for CAT Mini Excavators & Perkins Engines

Product Overview

4197640, also marked as 419-7640, is a fuel shutoff stop solenoid for Caterpillar heavy machinery and diesel engines. It controls the opening and closing of the fuel pipeline. When the ignition key is turned off or machine safety protection activates, the solenoid de-energizes instantly to cut off fuel supply and shut down the engine safely. Certain batches of this solenoid are manufactured by Woodward, a well-known producer of electrical engine components.

Key Specifications

FAQs

Q: What engines and machines does 4197640 fuel shutoff solenoid fit?

A: It for CAT engines C0.5, C0.7, C1.1, C1.5, C1.7, C2.2, 3011C, 3013, 3013C, 3024, 3024C. It matches CAT mini excavators including 301.5,301.6,301.7CR,301.8,302CR,302.7CR,303CR,303.5CR,304CR,304SR,305CR. It also fits CAT skid steer and multi terrain loaders: 216,216B,216B2,242B,242B2,247B,247B2,247B3,257B,257B2.

Q: What are the common failure signs of a faulty fuel stop solenoid?

A: Typical issues include engine unable to shut down after turning off the key, hard starting, no start condition, intermittent stalling, and abnormal fuel cut response when safety protection triggers.

Q: Are these cross part numbers interchangeable with 4197640?

A: U85206452, U85206451, U85206520 and T401132 are common cross references mainly used for Perkins engine lookup. Always verify engine model and serial number before ordering.

Q: How does this 12V fuel shutoff solenoid operate?

A: When powered on, the solenoid keeps the fuel circuit open for engine running. Once power is removed, it immediately closes the fuel path to stop the engine, delivering reliable safety shutdown.

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