The ThunderSpark Ignition Coil (part number 921-2105) is a direct-fit replacement for 2007-2011 Buick and Cadillac vehicles with 4.6L and 4.4L engines. Ignition Coils receive a signal from the distributor or engine control computer at the ideal time for combustion to occur and send a high voltage pulse to the spark plug to ignite the fuel air mixture in each cylinder.
Features:
- Effortless Installation: Designed for easy and hassle-free installation, these coils minimize vehicle downtime during replacement, keeping your vehicle on the road.
- Engineered for OE Performance: These coils are meticulously engineered and rigorously tested to meet and exceed OE performance and durability standards, ensuring reliable ignition and consistent spark output.
- Enhanced Fuel Efficiency: By delivering precise and reliable spark, these coils contribute to better fuel combustion, optimizing fuel efficiency, and reducing emissions for a more eco-friendly vehicle operation.
- Rugged Build: Crafted with high-quality materials, these coils are built to withstand harsh conditions, providing long-lasting performance and reducing the need for frequent replacements.
Specifications:
| Number of Terminals | 4 |
| Connector Type | Spade |
| Connector Gender | Male |
| Terminal Gender | Female |
Fits: 2007-2011 Buick and Cadillac models including Lucerne, DTS, SRX, STS, and XLR — 4.6L and 4.4L engines.
Confirm the year, make, model, and engine against your vehicle before ordering. Full application data is shown in the fitment lookup on this page.
Interchanges With: PRENCO 36-8202, Wells C1559, United Automotive Engine Products COP-35, SMP UF543, BWD E1043, General Motors 12597745, Cadillac 42597745, Airtex 5C1616 and 1 more
WARNING: This product can expose you to chemicals, including lead, which is known to the State of California to cause cancer or birth defects or other reproductive harm.
