{"product_id":"carbole-ignition-coil-pack-dg508-8-piece-curved-boot-kit-direct-replace-for-ford-4-6l-5-4l-6-8l-v8-v10","title":"CarBole Ignition Coil Pack (DG508) 8-Piece Curved-Boot Kit, Direct-Replace for Ford 4.6L\/5.4L\/6.8L V8\/V10","description":"\u003cstrong\u003eCarBole DG508 is an 8-piece curved-boot ignition coil pack set designed to restore reliable spark delivery and reduce misfires on compatible Ford, Lincoln, and Mercury 4.6L, 5.4L and 6.8L engines.\u003c\/strong\u003e\n\n\u003cp\u003eIf your V8 or V10 is showing hesitation, rough idle, or poor performance due to worn ignition coils, the CarBole DG508 set provides direct-replacement curved-boot coils built for durability and consistent electrical resistance. These coils are engineered as upgraded aftermarket replacements compatible with many Ford E150\/E250\/E550 and F-series trucks and their Lincoln\/Mercury counterparts. They come in a full eight-piece kit so you can replace all coils at once for even firing and simplified maintenance.\u003c\/p\u003e\n\n\u003ch3\u003eWill these coils fit my Ford or Lincoln engine?\u003c\/h3\u003e\n\u003cp\u003eThe DG508 curved coils are compatible with numerous factory part numbers and applications for Ford V8\/V10 engines, but they do not suit every model year or layout. They are intended for earlier 4.6L, 5.4L, and 6.8L engines that use curved boot coils; they specifically do not fit 2004-and-newer F-150s equipped with the 5.4L V8 that use straight boots.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFits: Ford E150, E250, E550, F150 (certain years), F250, F550; Lincoln and Mercury models with matching engines.\u003c\/li\u003e\n  \u003cli\u003eEngine sizes: 4.6L, 5.4L, 6.8L V8 and V10 applications where curved boots are required.\u003c\/li\u003e\n  \u003cli\u003eNot compatible with 2004+ F-150 5.4L V8 that requires straight-boot coils.\u003c\/li\u003e\n  \u003cli\u003eCross-references common OEM numbers such as F523, 1L2U12029AA, 3W7E12A366AA, 88921369, DG491, FD-503, and others included on the product listing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do these coils improve engine performance and reliability?\u003c\/h3\u003e\n\u003cp\u003eCarBole coils are built from high-grade materials that maintain stable electrical resistance and deliver strong, consistent spark to the spark plugs. That stable performance reduces ignition misfires and hesitation that often arise from cracked or degraded coils, especially under heavy load or extreme conditions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh-grade insulation and corrosion-resistant components for longer service life.\u003c\/li\u003e\n  \u003cli\u003eDesigned to produce strong spark energy for cleaner combustion and smoother running.\u003c\/li\u003e\n  \u003cli\u003eCurved boot design ensures correct fit and secure connection for compatible engines.\u003c\/li\u003e\n  \u003cli\u003eSold as an eight-piece kit to replace all coils and restore balanced firing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I expect during installation and routine use?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward for anyone comfortable with basic engine work: unplug the electrical connector, unbolt the coil, and swap in the new curved-boot CarBole unit. Once installed, you should notice improved starting consistency and fewer transient misfires, particularly if original coils were failing.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSimple bolt-and-plug replacement — common hand tools required.\u003c\/li\u003e\n  \u003cli\u003eReplace all eight coils at once for the best results and even wear.\u003c\/li\u003e\n  \u003cli\u003eInspect spark plug condition and wiring during the swap for optimal outcomes.\u003c\/li\u003e\n  \u003cli\u003eKeep connectors clean and torque bolts to manufacturer specs to prevent issues.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The CarBole DG508 8-pack is aimed at owners and technicians of Ford, Lincoln, and Mercury vehicles with compatible 4.6L, 5.4L, or 6.8L V8\/V10 engines who need a cost-effective, durable replacement for aging or failing ignition coils. It’s ideal when you want a full-coil refresh to eliminate intermittent misfires, improve throttle response, and restore smooth idle behavior without buying individual coils. Note: confirm your vehicle uses curved-boot coils before ordering to ensure correct fitment.\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: Are these coils compatible with my 5.4L F-150?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: They fit many 5.4L applications, but NOT 2004-and-newer F-150 5.4L models that require straight-boot coils.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the kit include all coils needed for a V8?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the CarBole DG508 kit contains eight curved-boot coils to replace every cylinder on applicable V8 engines.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"CarBole","offers":[{"title":"Default Title","offer_id":55171293249879,"sku":"B07CK5R88P","price":71.62,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/carbole-dg508-front-view-8-pack.jpg?v=1790442188","url":"https:\/\/britishgarage.co.uk\/products\/carbole-ignition-coil-pack-dg508-8-piece-curved-boot-kit-direct-replace-for-ford-4-6l-5-4l-6-8l-v8-v10","provider":"British Garage","version":"1.0","type":"link"}