{"product_id":"ignition-coil-and-iridium-spark-plugs-for-jaguar-xkr-2000-2002-4-0l","title":"Ignition Coil and Iridium Spark Plugs for Jaguar XKR (2000-2002) 4.0L","description":"\u003ch2\u003eDirect-Replacement Ignition Coil and Iridium Spark Plug Kit for 2000-2002 Jaguar XKR\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e Replaces degraded factory coil packs and worn spark plugs with a matched 8-cylinder direct-ignition setup to restore secondary voltage stability and eliminate combustion misfires under forced induction.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock XKR Thermal Breakdown and Ignition Quenching\u003c\/h3\u003e\n\u003cp\u003eIn the supercharged 4.0L AJ27S platform, tight engine bay packaging generates significant thermal soak beneath the valve covers. Over time, OEM coil housings suffer micro-fracturing in the epoxy potting, leading to dielectric breakdown and secondary voltage leak to ground. Combined with aged spark plugs suffering increased electrode gap erosion, high cylinder pressures from the supercharger cause spark blowout, rough cold idles, and intermittent P0300 misfire DTCs.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis comprehensive service kit pairs eight high-output coil-on-plug units with eight fine-wire iridium spark plugs. The ignition coils utilize premium electrolytic copper windings and high-dielectric thermoplastic housings to resist thermal fatigue and prevent voltage arcing. The matched iridium plugs feature a high-melting-point fine-wire center electrode and laser-welded ground core, significantly lowering required strike voltage while ensuring a crisp, uniform flame front under full supercharger boost.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px;\"\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e2000-2002 Jaguar XKR\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eEngine \/ Chassis\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e4.0L Supercharged AJ-V8 (AJ27S) \/ X100\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eStock Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e370 hp \/ 387 lb-ft (Approx)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eUF415, LNE1510AB, XW9312029AB, C1323, 5C1180\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2000 Jaguar XKR Base Coupe \u0026amp; Convertible 4.0L Supercharged V8\u003c\/li\u003e\n  \u003cli\u003e2001 Jaguar XKR Base Coupe \u0026amp; Convertible 4.0L Supercharged V8\u003c\/li\u003e\n  \u003cli\u003e2001 Jaguar XKR Silverstone Coupe \u0026amp; Convertible 4.0L Supercharged V8\u003c\/li\u003e\n  \u003cli\u003e2002 Jaguar XKR Base Coupe \u0026amp; Convertible 4.0L Supercharged V8\u003c\/li\u003e\n  \u003cli\u003e2002 Jaguar XKR 100 Coupe \u0026amp; Convertible 4.0L Supercharged V8\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Jaguar Precision Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to exact European OE electrical tolerances, this complete ignition overhaul restores smooth transient throttle response and maintains full-throttle spark energy without triggering false knock threshold readings or check engine lights.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50447748464888,"sku":"DS-EAZ2XNMY9","price":175.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/ignition-coil-and-iridium-spark-plugs-for-jaguar-xkr-2000-2002-4-0l-1.jpg?v=1788622991","url":"https:\/\/performancechiptuning.com\/fr\/products\/ignition-coil-and-iridium-spark-plugs-for-jaguar-xkr-2000-2002-4-0l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}