BDFHYK UF672 ignition coil and 97390 iridium spark plug set

UF672 ignition coil set for compatible Honda Civic applications

UF672 ignition coil set for compatible Acura ILX applications

97390 iridium spark plugs with UF672 ignition coil set

BDFHYK 4-coil 4-plug ignition set for compatible Honda Acura L4 applications

UF672 ignition coil replacement references C900 and GN10421

BDFHYK UF672 and 97390 ignition coil spark plug replacement set

BDFHYK Ignition Coils UF672 and Iridium Spark Plug 97390 For Honda Civic Acura ILX 1.8L 2.0L L4, Set of 4

$69.99

Product Detail

Type Ignition Coil + Spark Plug Set
SKU BDDLZ-BD-05-07859-CK
OE Number Coil: C900, 5C1880, GN10421, 6732317, 5C1880, UF-672, UF672
OE Number For Spark plug:97390, LKR7BGP-S

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BDFHYK UF672 ignition coil and 97390 iridium spark plug set includes 4 ignition coils and 4 spark plugs for compatible Honda Civic and Acura ILX applications. Product listings cover selected 1.8L and 2.0L L4 configurations. Confirm the exact year, model, engine, connector design, and replacement references before installation.

Product Details

Brand: BDFHYK
Product Type: Ignition Coil + Iridium Spark Plug Set
Package: 4 ignition coils + 4 spark plugs
Ignition Coil Reference: UF672
Spark Plug Reference: 97390

Fitment Check

Listed applications include 2012–2015 Honda Civic and 2013–2015 Acura ILX configurations. Match the exact year, engine, connector keying, mounting points, boot profile, and references with the removed parts before installation.

Reference Numbers

Ignition coil comparison references include C900, 5C1880, GN10421, 6732317, UF-672, and UF672. Spark plug references include 97390 and LKR7BGP-S.

Diagnosis Before Replacement

A misfire or ignition-related code does not by itself prove that an ignition coil has failed. Check the affected cylinder, plug condition, connectors, wiring, fuel delivery, intake leaks, compression, timing, and other relevant conditions.

Installation Notes

Compare the replacement coil and spark plug with the removed components.
Inspect plug wells for oil, moisture, corrosion, or debris.
Confirm connectors are fully seated and retained.
Use exact vehicle service information for plug specification, gap, torque, and access procedure.

Replacement Planning

Replace components according to diagnosis, condition, service history, labor access, and exact engine requirements. There is no universal mileage interval for ignition-coil replacement.

After Installation

If the engine still misfires, recheck fitment, connector seating, plug installation, and the affected cylinder before continuing diagnosis of wiring, fuel, air, compression, timing, or other mechanical causes.

Technical Specifications

Brand	BDFHYK
Product Type	Ignition Coil + Iridium Spark Plug Set
Ignition Coil Quantity	4
Spark Plug Quantity	4
Ignition Coil Reference	UF672
Spark Plug Reference	97390
Primary Applications	Honda Civic; Acura ILX; selected 1.8L / 2.0L L4 configurations — confirm exact fitment

Difficulty Moderate

Estimated Time 0.5–1 hour

Tools Required

Screwdrivers
Service manual specific to your vehicle
Socket set and ratchet
Wrenches

Pre-Installation Checklist

Stop the engine before disassembling or replacing the ignition coil.
Check the spark plugs and spark plug wires as part of diagnosis.
Keep the installation area clean and dry.
Make sure the ignition coil connections are correct.
Refer to the service manual for your specific vehicle because removal order and connector or fastener details can vary by make and model.
Disconnect the negative battery cable before working on the ignition system.

Installation Steps

Disconnect the battery. Remove the negative battery cable by loosening the clamp bolt with a socket or wrench.
Locate the ignition coils on top of the engine. They may be attached to the engine block or surrounding components.
Disconnect and remove the old ignition coil. Remove the mounting bolts or screws and disconnect the electrical connector(s). The order can vary by vehicle, so follow the vehicle-specific service manual. Remove the old coil once fully disconnected.
If one coil serves multiple spark plugs and has multiple electrical connections, mark or label the connectors so they can be reattached to the correct terminals.
Install the new ignition coil in the reverse order of removal. Secure the mounting bolts or screws and reconnect the electrical connector(s) in the correct positions.
Reconnect the negative battery terminal. Hand-tighten the connection, then tighten the terminal bolt with a socket or wrench. Do not over-tighten.
Close the hood, start the engine with the vehicle in Park, and confirm it starts and idles normally. If it does, test-drive the vehicle.

Post-Installation Verification

Confirm the new ignition coil is securely mounted.
Confirm all electrical connectors are connected to the correct terminals.
Confirm the negative battery terminal is reconnected and tightened sufficiently without over-tightening.
Start the engine in Park and confirm it starts and idles normally.
If idle is normal, test-drive the vehicle and check for remaining misfire or drivability symptoms.

Troubleshooting

Spark plug and wire checks from the manual:
With the engine running, disconnect spark plug wires one at a time and observe engine-speed or roughness changes; the manual states that no significant change can indicate a bad spark plug.
The manual describes checking for spark by holding the end of a disconnected spark plug wire near a metal surface and looking or listening for a spark or cracking sound.
While the engine is cranked, check for spark at each spark plug wire; the manual states that no spark can indicate a dead wire.
Make sure battery, ignition, coil, and spark-plug wire connections are secure. Wiggle connections and retest if a loose connection is suspected.
Keep spark plug ends clean and free of dirt, oil, or grease; clean and retest before replacing a plug.
Inspect wires for cracked, cut, scraped, or burned insulation. Check boots and terminals for damage, corrosion, or poor contact.
Check for corrosion between the boot, spark plug, and ignition coil, and inspect the spark plug for discoloration or damage.
Inspect spring clips and wire retention at the distributor and spark plug ends to make sure connections are held securely.
Ignition coil failure can cause one or more cylinders to misfire, stuttering, sluggishness, and other drivability issues.

BDFHYK Ignition Coil Installation Guide

Q: Which applications are listed for this UF672 set?

A: Product listings include selected 2012–2015 Honda Civic and 2013–2015 Acura ILX 1.8L / 2.0L L4 configurations. Confirm the exact year and engine before installation.

Q: How many ignition coils and spark plugs are included?

A: The set includes 4 ignition coils and 4 iridium spark plugs.

Q: Which ignition coil references can I compare?

A: UF672 is the primary reference. Comparison references include C900, 5C1880, GN10421, 6732317, and UF-672.

Q: Which spark plug references are listed?

A: The listed spark plug references include 97390 and LKR7BGP-S.

Q: Does a misfire code prove the ignition coil is bad?

A: No. A misfire can also involve plugs, wiring, connectors, fuel delivery, intake leaks, compression, timing, or other engine conditions.

Q: Should all four coils be replaced together?

A: Replacement scope should follow diagnosis, condition, service history, labor access, and exact engine requirements.

Q: Should the spark plugs be checked during coil replacement?

A: Yes. Inspect plug condition, wear, fouling, damage, and the correct specification for the exact engine.

Q: What if oil or moisture is in the spark-plug well?

A: Correct contamination before evaluating the replacement parts because it can affect the coil boot and electrical connection.

Q: What if the engine still misfires after installation?

A: Recheck fitment, connector seating, plug installation, and the affected cylinder before continuing diagnosis of other possible causes.

Q: Is there a universal mileage interval for ignition coils?

A: No. Replacement should follow diagnosis, component condition, service history, and vehicle-specific information.

Returns & Refunds

We accept returns within 30 days of delivery for eligible items. If the product is unused and in original condition, you may request a return according to our refund policy. Full policy details: View Refund Policy . We recommend contacting our support team before initiating a return to ensure the fastest resolution.

Customer Support

If you purchased the wrong part, received an incompatible item, or need installation assistance, please contact us directly.

Email: service@bdfhyk.com

Business Hours:

Mon–Fri 9:00–18:00 (GMT+8)

Mon–Fri 19:00–04:00 (UTC−6 / CST)

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