autoexact Ignition Coil Pack and Iridium Spark Plug Kit for Honda Civic/Fit 1.5–2.0L — 4-Coil 4-Plug Set, OE Fitment, Pre-Gapped I

Autoexact's ignition coil pack UF749 and iridium spark plug kit replaces worn ignition components to restore smooth starts, stronger acceleration, and improved fuel efficiency for compatible Honda Civic and Fit engines.

If your vehicle has rough idling, intermittent misfires, reduced throttle response, or a recurring check-engine light tied to ignition codes, the cause is often degraded coils and plugs. This kit includes four epoxy-potted ignition coils and four pre-gapped fine-wire iridium spark plugs engineered to meet OE fitment and performance demands. The parts are built for direct replacement with plug-and-play installation, letting DIY mechanics quickly swap the assemblies and get the engine back to optimal combustion.

How will this kit affect engine performance?

Replacing aged ignition coils and worn spark plugs improves spark consistency and combustion completeness, which translates into smoother running and more usable power. You can expect better throttle responsiveness, fewer hesitations under load, and a reduction in vibration caused by misfires. The iridium tips are designed to sustain reliable firing over many miles, maintaining combustion efficiency longer than standard plugs.

• Stronger, more consistent spark for fuller combustion
• Improved throttle response and reduced engine shake
• Longer-lasting iridium electrodes for sustained performance

Will this kit stop misfires and clear ignition-related trouble codes?

Yes—replacing faulty coils and plugs often resolves common misfire symptoms and related OBD-II codes (for example, P0300–P0308). Properly sealing, high-voltage coils and fresh plugs remove intermittent ignition faults that can trigger warning lights and poor drivability. If codes persist after installation, further diagnosis of fuel, compression, or wiring systems may be necessary.

• Targets misfires caused by weak spark and worn electrodes
• Epoxy-potted coils resist heat and moisture to maintain voltage
• Helps eliminate common P0300–P0308 ignition codes when cause is ignition parts

How straightforward is the installation for a home mechanic?

This kit is made for 100% OEM-style fit and requires no modifications—simply unplug the old coil packs and swap with the new units. The spark plugs arrive pre-gapped and the coils are factory-potted, making the swap a standard plug-and-play job for someone with basic hand tools. The package includes four coils and four plugs; recommended torque for plugs is 11.06–14.75 ft·lb (15–20 N·m), and factory-supplied dielectric grease is pre-applied to simplify sealing.

• Direct OE replacement—no cutting or adapters needed
• Pre-gapped iridium plugs and pre-lubricated boots for quick install
• Simple tools required; follow torque specification and install guide

Which vehicles and part numbers does this kit fit?

The kit is designed for specific Honda engines: commonly compatible with 2016–2021 Civic 2.0L non-turbo and 2015–2019 Fit 1.5L models. Confirm fitment by entering your vehicle details in the product’s fitment checker or by matching your OEM part number to those listed. The listing references UF749 and several equivalent numbers to help verify correct replacement.

• Fits 2016–2021 Honda Civic 2.0L (non-turbo) and 2015–2019 Honda Fit 1.5L
• Reference numbers: UF749, 305205R0003, 305205R0013, CM11121, and others
• Always confirm fitment with VIN or OEM part number before purchasing

Who is this for: This ignition coil and iridium spark plug kit is aimed at owners and independent technicians working on compatible Honda Civic and Fit engines who want a reliable, OEM-fit replacement to eliminate ignition-related drivability issues. It's suited for people who prefer a straightforward DIY swap to restore engine smoothness and improve fuel economy without dealership labor, as well as workshops seeking a tested aftermarket alternative backed by warranty and support.