{"product_id":"ignition-coil-spark-plugs-for-oldsmobile-cutlass-calais-1989-1991-3-3l-v6","title":"Ignition Coil \u0026 Spark Plugs for Oldsmobile Cutlass Calais (1989-1991) 3.3L V6","description":"\u003ch2\u003eDirect-Fit Ignition Coil \u0026amp; Spark Plugs for 1989-1991 Oldsmobile Cutlass Calais\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it does:\u003c\/strong\u003e Restores factory ignition performance by replacing degraded OEM coil packs and fouled spark plugs to eliminate misfires, rough idle, and stalling conditions.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock GM N-Body Ignition Weakness\u003c\/h3\u003e\n\u003cp\u003eThe original GM Distributorless Ignition System (DIS) on the 3.3L LG7 V6 relies on three waste-spark coil packs mounted to a central ignition module. Over decades of under-hood thermal cycling, the epoxy potting compound in the factory coils degrades and cracks. This leads to internal voltage leaks and primary winding resistance shifts. The result is a weak spark under load, characterized by persistent cylinder misfires, poor fuel economy, increased emissions, and a noticeably rough idle. Combined with worn copper spark plugs that suffer from widened gaps over time, the ignition system struggles to maintain complete combustion, resulting in a sluggish throttle response and stalling when warm.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis replacement ignition kit directly addresses these thermal vulnerabilities by utilizing upgraded ISO\/TS16949 certified coils featuring high-dielectric epoxy and superior thermal-resistant polymer housings. By upgrading the primary and secondary copper windings, these coils ensure optimal voltage output and a longer lifespan, resisting the severe heat soak commonly experienced in the transverse-mounted V6 engine bay. Paired with six premium NGK spark plugs featuring precision-engineered center electrodes, this package guarantees consistent spark timing and optimal flame kernel growth. The result is a complete restoration of combustion efficiency, smoothing out the idle and returning factory-level drivability and fuel economy to your Olds.\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;\"\u003e1989-1991 Oldsmobile Cutlass Calais\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;\"\u003eGM LG7 3.3L V6 \/ GM N-Body\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;\"\u003e160 hp \/ 185 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;\"\u003eC849, D555, 10467067, 5192\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1989 Oldsmobile Cutlass Calais 3.3L V6\u003c\/li\u003e\n  \u003cli\u003e1990 Oldsmobile Cutlass Calais 3.3L V6\u003c\/li\u003e\n  \u003cli\u003e1991 Oldsmobile Cutlass Calais 3.3L V6\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Oldsmobile Reliability Standard\u003c\/h3\u003e\n\u003cp\u003eKeep your N-Body running smoothly. A fresh ignition system ensures clean starts, restores lost low-end torque, and keeps your classic daily driver performing reliably on the road without triggering early OBD-I diagnostic trouble codes.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50066455199992,"sku":"DS-E652UU4E8","price":109.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/ignition-coil-spark-plugs-for-oldsmobile-cutlass-calais-1989-1991-3-3l-v6-1.jpg?v=1785285932","url":"https:\/\/performancechiptuning.com\/products\/ignition-coil-spark-plugs-for-oldsmobile-cutlass-calais-1989-1991-3-3l-v6","provider":"Performance Chip Tuning","version":"1.0","type":"link"}