{"product_id":"walker-921-2140-ignition-coil","title":"Walker 921-2140 Ignition Coil","description":"\u003ch2\u003eIgnition Coil Overview\u003c\/h2\u003e\u003cp\u003eWalker ThunderSpark ignition coil 921-2140 is a direct-fit ignition component for specific 2001 applications. It is built for Cylinder 1 service and supports consistent spark delivery in the ignition system.\u003c\/p\u003e\u003cp\u003eCompatible With 2001 INFINITI QX4 and 2001 Nissan Pathfinder, this ignition coil is identified by part number 921-2140 and is part of the ThunderSpark line.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eIgnition coil for Cylinder 1 service\u003c\/li\u003e\n\u003cli\u003eWalker ThunderSpark product line\u003c\/li\u003e\n\u003cli\u003eDirect-fit replacement for listed applications\u003c\/li\u003e\n\u003cli\u003ePart number 921-2140 for accurate ordering\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eThe Walker 921-2140 ignition coil is specified for 2001 INFINITI QX4 and 2001 Nissan Pathfinder applications at Cylinder 1. As an ignition coil, it converts low-voltage electrical input into the high-voltage output needed to fire the spark plug and maintain proper engine operation. The ThunderSpark line identifies this component within Walker's ignition offering, and the 921-2140 part number helps confirm the correct match for the listed vehicles.\u003c\/p\u003e\u003ch2\u003eCommon Issues This Part May Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eMisfire caused by weak or inconsistent spark output\u003c\/li\u003e\n\u003cli\u003eRough idle related to ignition coil failure\u003c\/li\u003e\n\u003cli\u003eHard starting from poor ignition performance\u003c\/li\u003e\n\u003cli\u003eLoss of engine power tied to Cylinder 1 ignition problems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify the vehicle application and Cylinder 1 location before installation. Confirm the connector style and mounting points match the original coil, and compare the old unit to Walker 921-2140 before final fitment. For best results, inspect related ignition components during service.\u003c\/p\u003e","brand":"Walker","offers":[{"title":"Default Title","offer_id":53497246482613,"sku":"DKHD-921-2140","price":50.23,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/O2_9212140_Fro.jpg?v=1791522284","url":"https:\/\/www.partcatalog.com\/products\/walker-921-2140-ignition-coil","provider":"PartCatalog","version":"1.0","type":"link"}