{"product_id":"1183534-magnetic-switch-starter-relay-for-caterpillar-120h120k-12h-12k-135h-140h","title":"1183534 Magnetic Switch Starter Relay for Caterpillar 120H120K 12H 12K 135H 140H","description":"\u003cstrong\u003eThis Magnetic Switch Starter Relay is a starter relay compatible with Caterpillar models 120H, 120K, 12H, 12K, 135H, 140H and matches OEM Part# 1183534.\u003c\/strong\u003e\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThis magnetic switch starter relay 1183534 ensures reliable engine cranking for Caterpillar heavy equipment. The relay acts as an electrical switch that controls high starter current, protecting the ignition system. Designed for Caterpillar graders and related machinery, it offers consistent performance in demanding environments.\u003c\/p\u003e\u003ch3\u003eKey Features \u0026amp; Performance\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOEM‑spec 1183534 relay for direct fit\u003c\/li\u003e\n\u003cli\u003eHandles high starter current with low contact resistance\u003c\/li\u003e\n\u003cli\u003eSealed housing resists moisture and debris\u003c\/li\u003e\n\u003cli\u003ePre‑tested for reliable cold‑cranking operation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCaterpillar 120H\u003c\/li\u003e\n\u003cli\u003eCaterpillar 120K\u003c\/li\u003e\n\u003cli\u003eCaterpillar 12H\u003c\/li\u003e\n\u003cli\u003eCaterpillar 12K\u003c\/li\u003e\n\u003cli\u003eCaterpillar 135H\u003c\/li\u003e\n\u003cli\u003eCaterpillar 140H\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCommon Uses\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eReplaces worn starter relays on Caterpillar motor graders\u003c\/li\u003e\n\u003cli\u003eEnsures positive engine start in construction and mining\u003c\/li\u003e\n\u003cli\u003eUsed in heavy equipment electrical systems for main starter circuit control\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e\n\u003cstrong\u003ePart Number(s):\u003c\/strong\u003e 1183534\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Will this relay fit a Caterpillar 140M?\u003cstrong\u003e A:\u003c\/strong\u003e This relay is designed for the 140H, 140K, and listed models; verify your machine’s serial number before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does it come with a mounting bracket?\u003cstrong\u003e A:\u003c\/strong\u003e The relay is sold as a unit; if originally equipped with a bracket, reuse your existing bracket for installation.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eProduct appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.\u003c\/em\u003e\u003c\/p\u003e","brand":"DURAFORCE","offers":[{"title":"Default Title","offer_id":53678073151761,"sku":"ZZ2Z01071","price":70.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0250\/2446\/2929\/files\/1_57550837-540d-4d4c-b1d4-57eda242ee09.jpg?v=1781614364","url":"https:\/\/www.duraforce.com\/products\/1183534-magnetic-switch-starter-relay-for-caterpillar-120h120k-12h-12k-135h-140h","provider":"DURAFORCE","version":"1.0","type":"link"}