{"product_id":"buymachineryparts-12v-fuel-shut-off-solenoid-for-cummins-5-9l-8-3l-engines-3-bolt-3-pin-direct-fit-part-3935649","title":"BUYMACHINERYPARTS 12V Fuel Shut-Off Solenoid for Cummins 5.9L \u0026 8.3L Engines — 3-Bolt, 3-Pin Direct Fit (Part 3935649)","description":"\u003cstrong\u003eA 12V fuel shut-off solenoid designed to stop fuel flow on Cummins 4B\/6B\/6C 5.9L and 8.3L diesel engines with Bosch P7100 pumps.\u003c\/strong\u003e\n\n\u003cp\u003eThis aftermarket shut-off solenoid (part 3935649) provides an electrically controlled way to cut fuel supply on compatible Cummins and Komatsu diesel engines. Built to match common replacement interchange numbers, it uses a three-bolt mounting pattern and a three-pin electrical connector so it fits into many existing installations without extensive modification. Verify your original part number before ordering to ensure compatibility.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this solenoid fit my Cummins engine?\u003c\/h3\u003e\n\u003cp\u003eThe unit is made to work with Cummins 4B, 6B, and 6C engine families in 5.9L and 8.3L displacements that use Bosch P7100 injection pumps. It uses standard 3-inch bolt spacing and a three-pin plug so it lines up with common factory mounting points. Confirm the OEM or interchange numbers printed on your current solenoid to be sure of a match.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCompatible with Cummins 5.9L and 8.3L models using Bosch P7100 pumps\u003c\/li\u003e\n\u003cli\u003e3 inch mounting bolt spacing and three-pin connector for direct fit\u003c\/li\u003e\n\u003cli\u003eCross-references include 3930234, 4946639 and SA494124\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich part numbers does this replace?\u003c\/h3\u003e\n\u003cp\u003eThis aftermarket valve is offered as an equivalent to several factory and aftermarket references, making it a practical replacement when original parts are unavailable. Use the interchange list to cross-check with your engine’s parts book or the tag on your existing solenoid. Always inspect thread sizes and connector style before installing.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInterchange numbers: 3930234, 4946639, SA494124 and SA-4335-24\u003c\/li\u003e\n\u003cli\u003eAlso referenced as FS30E-24, BG2X9N392AA, 2UO130764\u003c\/li\u003e\n\u003cli\u003eCheck physical dimensions and connector type for final confirmation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the electrical and mechanical specs I need to know?\u003c\/h3\u003e\n\u003cp\u003eThis is a 12-volt DC shut-off solenoid designed for inline mounting near the injection pump. The three-pin connector accepts standard harnesses used on compatible diesel engines, and the bolt spacing follows a common 3-inch pattern for straightforward installation. It is intended for use as a replacement part rather than a performance upgrade.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOperating voltage: 12V DC\u003c\/li\u003e\n\u003cli\u003eMounting: 3 inch bolt spacing for direct replacement\u003c\/li\u003e\n\u003cli\u003eConnector: three-pin electrical plug for OEM harness compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan I use this on Komatsu engines or other applications?\u003c\/h3\u003e\n\u003cp\u003eYes — some Komatsu models that share the same pump and mounting arrangements accept this solenoid. It’s important to compare the original part number and physical characteristics since fitment depends on pump model and mounting geometry. If your equipment uses different pumps or altered mounts, an adapter or different part may be required.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCompatible with certain Komatsu 8.3L applications sharing Bosch P7100 pump layout\u003c\/li\u003e\n\u003cli\u003eNot universal — confirm part number and mounting before purchase\u003c\/li\u003e\n\u003cli\u003eMay work across multiple brands when physical and electrical specs match\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: This replacement solenoid suits mechanics, fleet technicians, and DIY owners who need a direct-fit fuel shut-off for Cummins 5.9L and 8.3L engines or compatible Komatsu models. It’s aimed at those who have verified interchange numbers and are seeking a practical, cost-effective OEM-style replacement rather than an aftermarket performance part.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this solenoid a direct replacement for Cummins 5.9L engines?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, when your engine uses a Bosch P7100 pump and the original part number matches the listed interchange references.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What voltage does this shut-off solenoid require?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: This model operates on 12 volts DC and uses a three-pin electrical connector.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"BUYMACHINERYPARTS","offers":[{"title":"Default Title","offer_id":48086770024606,"sku":"B09X984Q4W","price":54.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/buymachineryparts-solenoid-front-view.jpg?v=1785904312","url":"https:\/\/northtrailauto.ca\/products\/buymachineryparts-12v-fuel-shut-off-solenoid-for-cummins-5-9l-8-3l-engines-3-bolt-3-pin-direct-fit-part-3935649","provider":"North Trail Auto","version":"1.0","type":"link"}