autoexact Ignition Kit for 3.8L V6 – 3 Coil Packs, 6 Iridium Spark Plugs & 6 Wires (Direct-Fit)

Complete ignition kit with three replacement coil packs, six pre-gapped iridium spark plugs, and six plug wires designed to restore reliable spark delivery for 3.8L Buick, Pontiac, Chevy, and Oldsmobile engines.

This autoexact kit bundles the most commonly replaced ignition components into one service-friendly package for selected 3.8L V6 vehicles. It’s built to be a direct-fit substitute for worn or failing coils, plugs, and wires on compatible model years — simplifying installation and reducing the need to source parts separately. The kit targets common ignition symptoms such as misfires, rough idle, and hesitation by replacing the parts that most often cause those issues.

Which vehicles and engines does this kit fit?

The kit is engineered for select GM vehicles equipped with the 3.8L V6 across multiple years. Fitment includes various Buick, Pontiac, Chevy, and Oldsmobile models; confirm your year, make, model and engine before purchasing to ensure compatibility.

• Designed for specified Buick models like LeSabre, LaCrosse, Lucerne, Park Avenue, and more (1990–2009 ranges where listed).
• Includes fitment for Pontiac Grand Prix and Bonneville in applicable years.
• Also fits some Chevy Impala and Oldsmobile variants using the same 3.8L engine platform.
• Check OE interchange numbers DR39, D555, 5599, 3403 and vehicle VIN if uncertain.

How will replacing coils, plugs, and wires improve driveability?

Worn ignition parts often cause uneven combustion that shows up as misfires, sluggish acceleration, or a check-engine light. Swapping all three component types at once helps restore consistent spark timing and energy, improving idle smoothness and throttle response under load.

• Epoxy-potted coils resist heat and moisture for stable spark output.
• Fine-wire iridium plugs are pre-gapped for reliable ignition and efficiency.
• Durable wires and spring contacts secure the coil-to-plug connection.
• May clear ignition-related trouble codes such as P0300–P0308 when faults are caused by these parts.

What features make this kit installer-friendly?

The kit is supplied as a direct replacement set intended for basic DIY installation with common hand tools. Components arrive factory pre-lubricated where needed and the spark plugs are pre-gapped to OEM-style specifications to minimize prep time.

• Complete pack: 3 coils, 6 iridium plugs, 6 plug wires for one bank or side of the engine layout.
• Pre-gapped plugs and green dielectric grease included for faster assembly.
• Recommended torque: 11.06 ft·lb (15 N·m) for plugs to ensure correct sealing.
• Support available — provide VIN or vehicle details for fitment help.

Are the parts durable and supported after purchase?

Each ignition coil undergoes a quality check before packing to confirm insulation and fit, and the materials chosen resist daily heat and vibration stresses. The kit includes a warranty and lifetime technical support so you can get help if compatibility or performance questions arise.

• Sealed coil housings reduce internal arcing and moisture intrusion.
• Iridium electrodes promote long life and consistent spark energy.
• 2-year warranty and lifetime technical assistance from autoexact.
• Note: printed numbers on plugs may differ from OEM markings — verify fitment by vehicle and OE interchange numbers.

Who this kit is for: This autoexact ignition kit is best for DIY mechanics and professional technicians replacing ignition components on compatible 3.8L GM engines who want a single, matched package of coils, iridium plugs, and wires. It’s suited to owners addressing misfires, rough idle, or ignition-related check-engine codes who prefer a consolidated repair option with manufacturer support and prepped parts for straightforward installation.