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Mechanics Choice: Improves Reliability and Enhances Performance at a value that beats OEM prices.

Yinglang specialized in excavator parts since 2003, offering wide range of aftermarket replacement parts used on different brands of excavators, through decade years of development, our products were successfully exported to more than 100 countries and received good reputation, we highly appreciated the continuous supports of all the customers from different countries, we will try our efforts to continue to provide reliable quality products at competitive price to serve our customers.

Electric parts can be supplied including pressure switch, stepper motor (throttle Motor, motor governor), solenoid valve, sensor, flameout solenoid (stop solenoid, shutoff solenoid, shutdown solenoid), starter switch, computer board, monitor, starting motor, alternator etc.

--Every part is manufactured to OEM specifications for perfect fit and performance

--Serving mechanics and do-it-yourselfers in all 50 U.S. States plus around the globe

--Pledge of total customer satisfaction is backed with a 1-year warranty

--Factory direct, money-saving pricing keeps more money in your pocket

Our company is a Recognized Engine and Turbine Retrofitter, and our goal is to provide quality products, solutions and technical services to the Turbo machinery industry and our customers. In addition to innovative solutions for prime movers, we provide support and enhancement to Diesel and Natural Gas Engines as well as Steam and Gas Turbine Control Systems. We also provide products and systems for all business segments including Compressor Anti-Surge Controls, Condition Monitoring, Power Generation and Distribution.

Our aftermarket solenoids are manufactured to exacting OEM specifications for perfect fit and superior performance. We make sure only premium materials and uncompromising craftsmanship go into every electrical unit. A new YL Electrical solenoid will restore precise, quick starts in a vehicle when it’s time to replace an older one.

How Solenoids Work:

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Solenoids work as electromagnetic switches, serving as the link between the ignition and starter. The solenoid engages when the ignition key is turned, creating a link to allow for the flow of electricity to the starter. Once the engine starts, the solenoid disengages, cutting off the flow of electric. Solenoids have wire coils that wrap around a mobile core. As electricity travels through the coil, the core becomes magnetized, which creates force to push the mobile core outward to engage gears on the starter.

Factory-Direct Pricing:

Because we are the factories, we can save you money by offering these electronic components at value prices.

25 Years of Satisfied Customers:
We’ve been in the business of supplying quality electrical components for over 25 years. Our long history has taught us that you only keep customers satisfied by supplying quality products and outstanding service.

We proudly stands behind the quality of our products with our total-confidence 1-year warranty. Yes, you have a full year to make sure your solenoid relay meets your expectations.

Description:

Name: Shutoff Solenoid, Shutdown Solenoid, Fuel Stop Solenoid, Shutdown Solenoid Valve, Stop Solenoid Valve, Fuel Cutoff Solenoid Valve, Solenoid Switch

Model: 3926412 SA-4257-24 RE516083 RE502474 3926411 SA-4257-12 RE502473

Voltage: DC 12/24V

Material: Iron

Replaces These Part Numbers:

Yinglang engineers are experts in engine and turbine controls because we understand your equipment. Yinglang offers simplex, duplex or TMR architecture control systems for a variety of applications as well as electronic engine control systems for any application operating on diesel and/or gaseous fuel. Yinglang service department is available 24/7 to provide parts, technical support, or emergency service.

Shutdown vs. Throttle (Choke) Applications 

Shutdown applications control via the fuel shutoff lever. The lever controls fuel flow to the engine or application. Usually a relay in the engine start system switches from the pull coil to the hold coil. However, over cranking by the operator can burn out the solenoid and therefore including a timing device is preferred as a safety measure. 

Throttle (Choke) applications use a solenoid to increase the amount of fuel going to the engine. It pushes or pulls the throttle control lever to a preset position. With an externally switched solenoid, a timing device (such as a Coil Commander) to switch from the pull coil to the hold coil is needed to limit the pull coil on time. As an alternative, an internally switched solenoid can also be used. 

Shutdown solenoids are prone to failure because of over cranking by the operator, resulting in overheating, while throttle solenoids are prone to failure because of likely problems in the system.  

Coil Protection 

In an internally switched dual coil solenoid, the pull coil is energized at the same time as the hold coil, with the key switch in the “Run” position. The plunger switches off the pull coil when it bottoms out, provided there is enough voltage and the linkage is adjusted correctly. 

In an externally switched dual coil solenoid, the hold coil is designed to be energized continuously with the key switch in the “Run” position. There is little or no danger of the hold coil failing. 

The pull coil is designed to be energized for a short time during engine cranking with the key switch in the “Start” position. Thus, the pull coil current is considerably higher (30-50 amps depending on the model) than that of the hold coil. 

Energizing the pull coil causes a significant rise in the internal temperature of the solenoid. Burnout of the coil can occur with excessive engine cranking. Therefore, the pull coil must be turned off, as soon as possible, after pulling the plunger to the “bottomed out” position. 

For both internally switched and externally switched solenoids, it is recommended that engine cranking be limited to three 30-second attempts with a cool-down period of two minutes (120 seconds) between each cranking attempt. After three cranking attempts (total elapsed time of 5½ minutes), the solenoid must be allowed to cool down to ambient temperature before making further cranking attempts.

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