{"product_id":"hepeng-magneto-armature-ignition-coil-for-small-engines-fits-594423-111p02-series-direct-fit-high-voltage-spark","title":"HEPENG Magneto-Armature Ignition Coil for Small Engines — Fits 594423 \/ 111P02 Series, Direct-Fit High-Voltage Spark","description":"\u003cp\u003e\u003cstrong\u003eHEPENG magneto-armature ignition coil replacement designed to deliver consistent, high-voltage sparks for small engines compatible with BS 595291 \/ 796500 \/ 595554 \/ 796499 \/ 594423 series.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis magneto-armature is a direct-fit ignition coil assembly engineered to match common flywheel profiles and restore reliable spark generation on compatible small engines. It replaces part numbers such as 594423 and fits models stamped with 111P02, 111P05, 11P902, 121Q07 and related BS codes. Installation is straightforward with no extra wire-cap terminal assembly required, making it a practical option for DIY mechanics and service shops.\u003c\/p\u003e\n\n\u003ch3\u003eWill this ignition coil fit my engine model?\u003c\/h3\u003e\n\u003cp\u003eCheck the stamped number on your current ignition coil housing to confirm compatibility. The HEPENG unit is intended for engines that list 594423 or the BS\/11P\/121Q series numbers; identical flywheel mounting and plug gap geometry are required for a direct swap.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible part references: 594423, 595554, 796499, 111P02, 111P05, 11P902, 121Q07\u003c\/li\u003e\n  \u003cli\u003eReplace like-for-like: verify casing stamp before purchase\u003c\/li\u003e\n  \u003cli\u003eNo extra wiring or cap terminals needed for typical installs\u003c\/li\u003e\n  \u003cli\u003eDesigned to match common small engine flywheel alignment\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does this magneto-armature improve ignition performance?\u003c\/h3\u003e\n\u003cp\u003eThe coil is wound and timed to produce a strong, uninterrupted high-voltage pulse to the spark plug when triggered by the flywheel magnets. That consistent spark output helps reliable starting and steady running when the rest of the ignition system is in good condition.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOptimized winding for strong spark output\u003c\/li\u003e\n  \u003cli\u003ePrecisely matched to typical flywheel magnet timing\u003c\/li\u003e\n  \u003cli\u003eReduced misfires when installed correctly\u003c\/li\u003e\n  \u003cli\u003eDurable insulation and construction for long service life\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow difficult is installation and what tools are needed?\u003c\/h3\u003e\n\u003cp\u003eInstallation is intentionally simple: remove the engine cover, unbolt the old magneto-armature, and mount the HEPENG replacement in the same location. No additional wire-cap terminal assembly is required, though basic hand tools and a service manual or diagram are recommended to ensure correct air gap and timing alignment.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBasic tools: socket set, screwdrivers, flywheel puller (if needed)\u003c\/li\u003e\n  \u003cli\u003eNo soldering or extra terminal assembly needed\u003c\/li\u003e\n  \u003cli\u003eSet the ignition air gap per your engine’s specification after fitting\u003c\/li\u003e\n  \u003cli\u003eTorque mounting bolts to manufacturer specs for safety\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I check after fitting the new coil?\u003c\/h3\u003e\n\u003cp\u003eAfter installation, verify correct spark by rotating the engine slowly and observing plug spark or using a timing light. Also inspect mounting security, wire routing, and re-check the stamped part number to confirm the correct match for future reference.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eConfirm visible, strong spark at the spark plug\u003c\/li\u003e\n  \u003cli\u003eRe-check ignition air gap and adjust if necessary\u003c\/li\u003e\n  \u003cli\u003eEnsure mounting bolts are tight and wiring is clear of moving parts\u003c\/li\u003e\n  \u003cli\u003eRecord the replacement part number for maintenance history\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This HEPENG magneto-armature is suited for homeowners, lawn and garden technicians, and small engine repair professionals who need a reliable, easy-to-install ignition coil replacement for BS and 11P-series engines. It's a practical choice if your engine’s casing shows one of the listed numbers and you want to restore dependable spark output without custom wiring or complex assembly.\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: How do I know this part fits my engine?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Match the number stamped on your existing coil (e.g., 594423, 111P02, 121Q07) with the HEPENG replacement; identical mounting and flywheel fit are required.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is special wiring required to install this coil?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No; the HEPENG magneto-armature installs without additional wire-cap terminal assembly, using standard engine connectors and mounts.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"HEPENG","offers":[{"title":"Default Title","offer_id":48085620162718,"sku":"B09HQTXCQY","price":34.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/hepeng-ignition-coil-front-view.jpg?v=1785874854","url":"https:\/\/northtrailauto.ca\/products\/hepeng-magneto-armature-ignition-coil-for-small-engines-fits-594423-111p02-series-direct-fit-high-voltage-spark","provider":"North Trail Auto","version":"1.0","type":"link"}