Ignition Coil and Iridium Spark Plugs for Buick Cascada (2016-2019) 1.6L

Direct-Replacement Ignition Coil and Iridium Spark Plug Kit for 2016-2019 Buick Cascada (Delta II)

What it Does: The ignition coil and iridium spark plug kit replaces aged factory ignition components on the 2016-2019 Cascada to resolve cylinder misfires under boost and restore peak combustion efficiency.

The Stock Buick Cascada Ignition Breakdown

The forced-induction environment of the direct-injected 1.6L LWC Ecotec platform places extreme dielectric stress on the primary and secondary ignition system. Over time, engine bay thermal cycling degrades the factory coil-on-plug epoxy windings and hardens the silicone spark plug boots, leading to secondary voltage breakdown and micro-arcing. Simultaneously, cylinder pressures under turbo boost erode standard plug gaps, causing quenching, erratic combustion, high-load hesitations, and persistent P0300-P0304 diagnostic trouble codes.

The Engineering Solution

This full tune-up assembly cures ignition failure through reinforced construction and optimized arc stability. The four replacement coil packs feature high-grade magnetic core laminations and premium vacuum-poured epoxy shielding to prevent internal arc blow-out under peak cylinder pressures. Paired with laser-welded fine-wire iridium spark plugs, this kit significantly lowers the ionization voltage threshold required to bridge the spark gap. The fine-wire iridium alloy resists spark erosion and high combustion-chamber temperatures, delivering consistent ignition timing and restoring fuel atomization efficiency across all four cylinders.

What's Included

• 4 Ignition Coils (Black, 4-Blade Connector)
• 4 Pre-Gapped Iridium Spark Plugs (12mm Thread, 14mm Hex, 25mm Reach)

Technical Specifications

Compatibility

• 2016 Buick Cascada 1.6L L4 Turbo (Base, Premium)
• 2017 Buick Cascada 1.6L L4 Turbo (Base, Premium, Sport Touring)
• 2018 Buick Cascada 1.6L L4 Turbo (Base, Premium, Sport Touring)
• 2019 Buick Cascada 1.6L L4 Turbo (Base, Premium, Sport Touring)

Frequently Asked Questions & Fitment Warnings

Does this fit the Delta II Cascada?

Yes, this is a direct fit for the 2016-2019 Buick Cascada equipped with the 1.6L LWC turbocharged inline-four engine.

Do the new spark plugs require gapping before installation?

No, the iridium spark plugs come pre-gapped, though careful verification is recommended before torquing into the aluminum cylinder head.

The Buick Calibration Standard

Engineered to satisfy GM European-derived architecture, this direct-fit ignition kit ensures precise signal synchronicity with the factory ECM to eliminate misfires, safeguard catalytic converters, and deliver smooth, factory-level open-top touring performance.