BDFHYK Ignition Coil & Iridium Spark Plug Kit for Honda Civic 2001–2005 UF400 ZFR6FGP, Direct-Fit Longer Life

This kit combines one UF400 coil pack and compatible ZFR6FGP iridium spark plugs sized for the 1.7L four-cylinder Honda Civic years 2001 through 2005. Each component is manufactured with upgraded materials—varnished copper windings, high-grade rubber insulation and an iridium electrode—to improve durability and maintain consistent spark delivery. Check original equipment (OE) numbers and vehicle fitment images before purchase to confirm compatibility.

How will these parts affect starting and idle performance?

Replacing worn coils and plugs often tightens electrical timing and restores clean combustion, which can reduce rough idle and intermittent misfires. The iridium tip on the spark plug requires less voltage to ignite the mixture, while the coil’s quality windings deliver stable current to each plug.

• Smoother cold starts and fewer false misfires
• More consistent idle with reduced shaking
• Iridium electrode promotes reliable ignition at lower voltages

What materials and build details should I expect from BDFHYK parts?

The UF400 coil uses silicon steel laminations for the core, precision-varnished winding wire, and rubber parts sourced from established suppliers, enhancing heat and vibration resistance. The ZFR6FGP spark plug features an iridium center electrode and a high-quality ceramic insulator for long life and steady performance.

• Silicon steel core and varnished winding for the coil
• Imported-grade rubber seals to resist oil and heat
• Iridium tip and durable ceramic on the spark plug

Which OE numbers and vehicle details should I verify before ordering?

Confirming OE or reference numbers prevents mismatch and ensures a plug-and-play replacement. The kit corresponds to commonly used OE codes for Civic models; compare them to your vehicle’s parts list or under-hood labels before installation.

• Cross-check with UF400 and related OE references (examples in product listing)
• Verify spark plug code ZFR6FGP against your engine specification
• Applicable to 1.7L L4 Honda Civic model years 2001–2005

How long will these components typically last and when should I replace them?

Service life depends on driving conditions, but ignition coils and iridium plugs are designed for extended intervals compared with basic copper plugs. If your Civic exceeds about 80,000 km or shows symptoms like hard starts, poor acceleration, increased fuel use, or persistent misfires, replacement is recommended.

• Iridium plugs often exceed the life of standard plugs under normal driving
• Coils subject to heat and oil contamination may need earlier replacement
• Replace both coil and plugs when performance symptoms appear or at long intervals

Who is this for: This BDFHYK UF400 coil and ZFR6FGP spark plug set is aimed at DIY owners and independent mechanics working on Honda Civic 1.7L (2001–2005) engines who want a reliable, higher-quality replacement for worn ignition components. It’s suitable for drivers who notice degraded starting, rough idling, or fuel economy decline and prefer a straightforward, OE-compatible swap without extensive tuning. For compatibility questions or fitment verification, consult the vehicle’s service manual or the part reference images and OE listings on the product page.