KacuYelin UF781 Ignition Coil Pack & Double Iridium Spark Plugs Set of 4 — 2016–2021 Turbo Honda/Acura, OE Fit & Improved Throttle

The KacuYelin UF781 kit is a four-pack of ignition coil packs and double-iridium spark plugs engineered to replace OE units (CM11122, 95660) for select 2016–2021 Honda and 2019–2021 Acura turbocharged models.

This complete ignition kit combines precision-designed coil packs with high-durability double iridium spark plugs to restore consistent spark, improve throttle response and support fuel-efficiency in compatible turbocharged engines. Built in TS16949-certified facilities with premium materials—copper windings, silicon steel cores and high-alumina ceramic insulators—this set addresses common ignition issues like misfires, rough starts and power loss while matching OEM fitment for plug-and-play replacement.

Which vehicles will this UF781 kit fit?

This kit is intended for specific turbocharged Honda and Acura gas engines from the model years listed. It is not compatible with naturally aspirated engines or full-hybrid EV-GAS (FHEV) systems. Always confirm year, model, engine displacement and aspiration before ordering.

• Honda Accord: 2018–2021, 1.5L and 2.0L turbocharged gasoline engines
• Honda Civic: 2016–2021, 1.5L turbocharged gasoline engines
• Honda CR-V: 2017–2021, 1.5L turbocharged gasoline engines
• Acura RDX: 2019–2021, 2.0L turbocharged gasoline engines; Acura TLX: 2021, 2.0L turbocharged gasoline engine

How do the coil packs in this set improve ignition performance?

KacuYelin coils use high-purity copper windings and silicon steel cores encased in high-temperature epoxy to maintain stable high-voltage output and resist corrosion. The result is more reliable spark delivery under repeated thermal stress and fewer misfires compared with degraded OEM coils.

• German-imported copper windings for efficient conductivity
• Silicon steel core for strong magnetic flux and consistent voltage
• High-temperature epoxy sealing to prevent moisture and corrosion
• Direct replacement OE form factor for plug-and-play installation

Why choose double iridium spark plugs over standard plugs?

The double iridium plugs in this kit feature a 360° continuous laser weld and cold-extruded center electrode to concentrate spark energy and resist wear. High iridium content and robust ceramic insulation extend service life and maintain stable combustion especially in turbocharged engines and challenging operating conditions.

• Up to 90% iridium content for excellent anti-abrasion properties
• 360° laser-welded electrode for focused, reliable sparks
• 95% high-alumina ceramic insulator for heat resistance and insulation
• Designed life expectancy up to 80,000–120,000 miles under normal service

What measurable benefits can you expect after installing this kit?

When installed as a matched set, the coils and iridium plugs can restore engine responsiveness and help optimize fuel use. While results vary by vehicle and condition, many drivers notice fewer misfires, improved start behavior and more consistent idle and acceleration compared with worn ignition components.

• Potential fuel-efficiency gains in the range of 15%–20% when replacing degraded ignition parts
• Reduced incidence of engine hesitation and start failures
• Lower unburned fuel and emissions due to more complete ignition
• OEM-matched specs for straightforward replacement without modifications

Who is this for? This KacuYelin UF781 ignition kit is aimed at owners and mechanics of compatible turbocharged Honda and Acura models who want a full ignition-system refresh using durable parts. It suits drivers experiencing misfires, rough idling, sluggish acceleration or increased fuel consumption, and anyone replacing worn coils and plugs on recommended service intervals. Before purchase, confirm vehicle year, engine size and aspiration to ensure correct fitment; this kit is not for naturally aspirated or full-hybrid EV-GAS vehicles.