{"product_id":"yiyanto-ignition-coil-spark-plug-kit-for-john-deere-z-la-series-mowers-mia12788-replacement-direct-fit-heat-resistant","title":"YIYANTO Ignition Coil \u0026 Spark Plug Kit for John Deere Z\/LA Series Mowers — MIA12788 Replacement, Direct-Fit Heat-Resistant","description":"\u003cstrong\u003eYIYANTO MIA12788 is a direct-fit ignition coil and spark plug kit engineered to restore reliable starting and steady idle for compatible John Deere lawn tractors and mowers.\u003c\/strong\u003e\n\n\u003cp\u003eIf your John Deere Z, LA or 100-series mower struggles to start, stalls, or idles unevenly, a worn ignition coil or spark plug is often the culprit. This replacement kit includes a high-conductivity MIA12788 ignition coil that replaces LG691060, MIA12346 and similar part numbers, plus an M78543-equivalent spark plug. It’s built for heat resistance and consistent performance so you can get back to mowing with minimal downtime.\u003c\/p\u003e\n\n\u003ch3\u003eWhich John Deere models will this ignition coil fit?\u003c\/h3\u003e\n\u003cp\u003eThis YIYANTO coil is designed to be compatible with a wide range of John Deere lawn tractors and engines across Z, LA and 100 series. It covers many common model variants used in residential and light commercial mowing.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible series: Z515E, Z525E, Z535M, Z535R, Z425, Z435, Z445 and similar Z models\u003c\/li\u003e\n  \u003cli\u003eLA series: LA130, LA135, LA140, LA145, LA150, LA155\u003c\/li\u003e\n  \u003cli\u003eSelected 100\/series engines and E\/D models including E130–E180 and D125–D170 ranges\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does this replacement kit improve starting and idle behavior?\u003c\/h3\u003e\n\u003cp\u003eThe coil delivers stable high-voltage output while the included spark plug provides consistent ignition timing, which together reduce hard starting, misfires, and unstable idle. Both parts are inspected for conductivity and heat tolerance to maintain steady engine operation under load.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRestores strong spark to reduce crank time and retries\u003c\/li\u003e\n  \u003cli\u003eReduces engine vibration and intermittent stalls\u003c\/li\u003e\n  \u003cli\u003eHelps achieve smoother, more consistent idle speeds\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs installation something I can do myself, or do I need a mechanic?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward for anyone comfortable with basic mower maintenance—no special tools or advanced electrical work required. The coil and spark plug are direct-fit replacements, so they mount and connect like the originals.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect-fit replacement for listed part numbers—no modification needed\u003c\/li\u003e\n  \u003cli\u003eStandard hand tools (wrench, socket) typically suffice\u003c\/li\u003e\n  \u003cli\u003eFollow safety steps: disconnect battery and spark wire before removal\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I expect from the product quality and durability?\u003c\/h3\u003e\n\u003cp\u003eYIYANTO builds this ignition coil with materials chosen for conductivity and thermal resistance; each unit undergoes quality checks before shipping. It’s intended to tolerate prolonged mowing sessions and the heat cycles common to small engine operation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eEngineered for reliable conductivity and heat resistance\u003c\/li\u003e\n  \u003cli\u003eManufacturing inspections to ensure consistent performance\u003c\/li\u003e\n  \u003cli\u003eCompatible spark plug selected to match ignition characteristics\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: This kit is ideal for homeowners and small-property caretakers who own compatible John Deere lawn tractors and need a cost-effective, direct replacement for a failing ignition coil or spark plug. It’s also suitable for DIY mechanics, landscape pros who perform routine maintenance, and anyone looking to reduce downtime and avoid more expensive repairs caused by ignition issues.\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: Does this replace LG691060?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The YIYANTO MIA12788 coil is a direct replacement for LG691060 and MIA12346 part numbers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do I need special tools to install it?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No special tools required—basic hand tools and standard safety steps are sufficient for installation.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"YIYANTO","offers":[{"title":"Default Title","offer_id":48082897600670,"sku":"B0GM4PKVZQ","price":58.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/yiyanto-front-packaging-ignition-coil-spark-plug.jpg?v=1785818722","url":"https:\/\/northtrailauto.ca\/products\/yiyanto-ignition-coil-spark-plug-kit-for-john-deere-z-la-series-mowers-mia12788-replacement-direct-fit-heat-resistant","provider":"North Trail Auto","version":"1.0","type":"link"}