APremium 8x Black Ignition Coils & 16x Iridium Spark Plugs — Dodge RAM, Jeep Grand Cherokee, Durango, Challenger, Charger

Overview and experience

This A-Premium kit combines 8 black ignition coils with 16 iridium spark plugs, designed to fit a wide range of Chrysler, Dodge, Jeep and Ram vehicles. The parts are engineered to work together as a cohesive upgrade, offering a consistent feel across the engine bay and a straightforward replacement path for common V8 5.7L powertrains.

Key construction details include three terminal blade style coils that bolt on to the valve cover, a primary resistance of about 0.77 ohms, and iridium plus nickel spark plugs with a cold weather friendly gap of 0.7 to 0.8 inches. The 14 mm thread diameter and installation torque range of 3 to 12 N m provide clear guidance for installation. Iridium electrodes are noted for longevity and reliable firing, which can contribute to smoother idle and may support more efficient combustion and quicker starts.

What you get

• 8 ignition coils in a black finish for a uniform appearance and consistent performance
• 16 iridium spark plugs designed for durability and reliable combustion
• Reference numbers to simplify cross‑checks: 5602129AA, 56029129AF, 56028129AB, 56029129AA, 56029129AB, 68060346AA, 68238603AA, UF504, UF-504
• Broad compatibility with a range of Chrysler, Dodge, Jeep and Ram models

Potential benefits and real‑world use cases

• Longer life expectancy for plug electrodes due to iridium composition, with sustained firing quality
• Potential for smoother idle and steadier engine response across daily driving
• Possible improvements in fuel efficiency and reduced emissions through more consistent combustion
• Quicker, more reliable starts and improved cold-weather performance

In real-world use, drivers may notice crisper acceleration and balanced power delivery as worn components are replaced with matched A-Premium parts. The kit is designed to help maintain a cohesive ignition system without the guesswork of mixing parts from different brands.

Fitment and installation tips

Coils mount bolt‑on to the valve cover and use a blade terminal configuration. Ensure the spark plug gap is set to 0.7–0.8 inches, and follow torque guidance within the 3–12 N m range for a secure seating. This design aims to simplify installation and support consistent performance across the engine bay.

Warranty and support

APremium backs this kit with a one‑year unlimited‑mileage guarantee, along with a broad catalog of automotive accessories to help you hit the road with confidence.