BDFHYK Ignition Coils and Iridium Spark Plugs Kit for GM 1.4L/1.5L — UF802 Coils & 91970 Plugs, Set of 4, Direct-Fit

BDFHYK's kit pairs four UF802 ignition coils with four 91970 iridium spark plugs to restore reliable ignition for 1.4L–1.5L GM I4 engines.

This replacement pack is designed as a direct-fit ignition solution for select Chevrolet, GMC and Buick compact models from mid-2016 through 2020. Each coil pack uses corrosion-resistant materials and precision-wound wire, while the iridium-tipped plugs aim to provide consistent strikes and longer service life than standard copper plugs. Before ordering, confirm compatibility by matching your vehicle’s OE numbers and engine specification.

Which vehicles and engines will this kit fit?

The BDFHYK UF802 coils and 91970 iridium plugs target GM 1.4L and 1.5L turbocharged inline-four engines. Compatibility covers Chevrolet Equinox (2018–2020), Malibu (2016–2020), Cruze (2016–2019), GMC Terrain (2018–2020), and Buick Encore (2016–2019) models listed by the manufacturer.

• Check OE references: UF802, 12635672, GN10797, C-939, C2036, 12670053.
• Spark plug OE: 91970 / ILNAR8B7G — match threads and gap specifications.
• Confirm engine displacement is 1.4L or 1.5L I4 turbo before purchase.

How do these ignition coils and plugs improve engine performance?

Upgrading both coils and plugs at the same time helps restore consistent combustion by ensuring strong, stable sparks across all cylinders. The iridium electrode improves durability and ignition precision, while the coil’s high-grade materials reduce heat-related degradation.

• Smoother starting and crisper throttle response after installation.
• Potentially reduced misfires and rough idling when worn parts are replaced.
• Durable construction with Japan rubber and Germany varnished wire for longer life.

What should I expect during installation and maintenance?

Installation is a straightforward bolt-and-plug swap for mechanically experienced DIYers or professional shops. The package includes a coil installation manual; always replace plugs to factory gap and torque specs, and inspect boots and harnesses for wear.

• Use proper torque settings for plugs and coils to avoid thread damage.
• Replace coils and plugs in matched sets to prevent imbalance.
• Inspect ignition wiring and connectors while servicing for corrosion.

When is it time to replace coils and spark plugs?

Consider replacing ignition coils and spark plugs after long usage or when symptoms appear. Common indicators include engine shaking, slow acceleration, failed starts, and increased fuel consumption; such signs suggest declining ignition performance.

• Recommended after roughly 80,000 km or sooner if performance issues arise.
• Replace both coils and plugs together for consistent operation.
• Always verify part numbers and physical fit before installation.

Who is this for: This BDFHYK UF802 coil and 91970 iridium plug set is intended for owners and mechanics servicing compatible GM compact cars with 1.4L or 1.5L I4 engines who want a full ignition refresh. It’s a good option for drivers experiencing ignition-related drivability issues, those performing routine scheduled maintenance, or anyone replacing worn OE components with a direct-fit aftermarket kit. Be sure to confirm the OE part numbers and engine fitment against your vehicle before ordering.