{"product_id":"ignition-coil-and-iridium-spark-plugs-for-saturn-l300-2004-2005-3-0l","title":"Ignition Coil and Iridium Spark Plugs for Saturn L300 (2004-2005) 3.0L","description":"\u003ch2\u003eDirect-Fit Ignition Coil Rail and Iridium Spark Plug Kit for 2004-2005 Saturn L300\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The ignition coil rail and iridium spark plug kit replaces degraded factory coil cassettes and worn plugs on the 2004-2005 Saturn L300 to restore peak combustion efficiency, eliminate multi-cylinder misfires, and stabilize idle.\u003c\/p\u003e\u003ch3\u003eThe Stock Saturn L300 Coil Cassette Degradation\u003c\/h3\u003e\u003cp\u003eThe 3.0L \u003cstrong\u003eL81\u003c\/strong\u003e engine in the \u003cstrong\u003eGM2900\u003c\/strong\u003e platform utilizes integrated cassette-style ignition coil rails seated directly over the cylinder heads. Operating in this tightly packed engine bay exposes the factory ignition packs to continuous thermal cycling and severe heat soak. Over time, internal epoxy insulation breaks down, creating internal micro-arcing, secondary winding shorts, and classic \u003cstrong\u003eP0300\u003c\/strong\u003e random misfire diagnostic codes. Concurrently, factory plugs suffer from electrode erosion and widened gaps, which spikes the secondary voltage requirement and overburdens the failing coil rails.\u003c\/p\u003e\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\u003cp\u003eThis comprehensive ignition service kit restores factory combustion dynamics by replacing both front and rear ignition banks alongside precision iridium hardware. The replacement coil rails utilize high-grade dielectric epoxy potting and reinforced PBT thermoplastic housings to resist thermal fatigue and eliminate high-voltage leakage. Paired with laser-welded finewire iridium spark plugs, this system reduces arc voltage demand, promotes faster flame kernel propagation, and resists carbon fouling under severe duty cycles. Direct replacement architecture preserves OEM harness mating without wire splicing.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px; margin-bottom: 20px;\"\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eFitment\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e2004-2005 Saturn L300\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eEngine \/ Chassis\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e3.0L DOHC V6 (L81) \/ GM2900\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eStock Output\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e182 hp \/ 190 lb-ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eReplaces OEM Part #\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003eUF278, UF754, 68080580AB, 68242286AA, 68242286AB, KIN119946TOP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e2004 Saturn L300 3.0L V6 Base (Sedan \u0026amp; Wagon)\u003c\/li\u003e\n\u003cli\u003e2005 Saturn L300 3.0L V6 Base (Sedan)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eDoes this fit the GM2900 L300?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 2004-2005 Saturn L300 equipped with the 3.0L \u003cstrong\u003eL81\u003c\/strong\u003e engine.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo these iridium plugs require manual gapping prior to installation?\u003c\/strong\u003e\u003cbr\u003e No, these iridium plugs arrive pre-gapped to factory specifications; attempting manual adjustment can chip or damage the fragile iridium center electrode.\u003c\/p\u003e\u003ch3\u003eThe Saturn Commuter Standard\u003c\/h3\u003e\u003cp\u003eEngineered to deliver bulletproof everyday reliability, this ignition kit eliminates hesitations, protects downstream catalytic converters from unburnt fuel wash, and ensures clean cold-start ignition across daily commute conditions.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50606270152952,"sku":"DS-E6IEMAORC","price":109.95,"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-saturn-l300-2004-2005-3-0l-1.jpg?v=1790090323","url":"https:\/\/performancechiptuning.com\/es\/products\/ignition-coil-and-iridium-spark-plugs-for-saturn-l300-2004-2005-3-0l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}