Description
OEM part number:
30520R1AA01, UF-672, UF672, C900, 5C1880, GN10421, 6732317, 5C1880
Fitment:
For acura ILX 2013-2015 L4 2.0L Petrol Sedan
For honda Civic 2012-2015 L4 1.8L Petrol Sedan
For honda Civic 2012-2015 L4 1.8L Petrol Coupe
For honda HR-V 2016-2019 L4 1.8L Petrol Sport Utility
Package
✅Benefits:
✓ Iridium construction provides 10x longer lifespan than conventional copper plugs
✓ Improves fuel efficiency by up to 6% through better combustion
✓ Reduces emissions and minimizes engine misfires
✓ Ensures faster cold starts even in extreme weather (-40°F to 1,832°F operating range)
Application Note: Always confirm your vehicle's year, make, model, and engine size before purchase. Never adjust the pre-set gap unless specified by your vehicle manufacturer.
Professional Installation Precautions
🔧1. Pre-Installation Preparation
Ensure the engine is fully cooled (minimum 2 hours after shutdown) to prevent thread damage and personal injury.
Disconnect the negative battery terminal to avoid accidental ignition during installation.
Gather required tools: Spark plug socket (5/8" or 16mm), torque wrench, spark plug gap tool, anti-seize compound (copper-based), and clean rag.
Verify key specifications match:
Thread diameter ([12/14]mm)
Reach ([0.75/1.04]inch)
Gap size ([0.03/0.04]mm) – Do not adjust pre-gapped plugs unless specified by vehicle manual.
🔧2. Step-by-Step Installation Guidelines
Remove engine covers (if applicable) using appropriate sockets to access spark plug wells.
Disconnect ignition coils (for COP systems): Press connector tabs and pull gently; use socket to remove coil bolts.
Remove old spark plugs: Use spark plug socket with extension; turn counterclockwise. Inspect for damage (oil fouling, carbon buildup).
Prepare new spark plugs:
Apply thin layer of copper anti-seize to threads (avoid electrode contact)
Confirm gap size matches vehicle specs (use feeler gauge if adjustment is needed)
Install new spark plugs:
Hand-tighten first to prevent cross-threading (do not force)
Use torque wrench to apply [12/15/25] N torque (follow manufacturer specs)
Reinstall components:
Reattach ignition coils and connectors
Replace engine covers and secure with original hardware
Post-installation check: Reconnect battery terminal; start engine and listen for abnormal noises
🔧3. Safety & Maintenance Tips
Safety Warnings:
Wear heat-resistant gloves and safety glasses to protect against hot components and debris.
Never work under a vehicle supported only by a jack – use jack stands.
Keep ignition sources away from fuel vapors during installation.
🔥Maintenance Schedule:
Iridium plugs: Replace every 60,000-100,000 miles
Platinum plugs: Replace every 50,000-80,000 miles
Nickel alloy plugs: Replace every 30,000-50,000 miles
Troubleshooting:
⚠️Misfires after installation: Check torque specs and plug gap; verify connector connections.
⚠️Oil on spark plug threads: Indicates valve cover gasket leak – address before installing new plugs.
⚠️White deposits on electrodes: May indicate overheating – check cooling system and fuel mixture.
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4) To avoid initiating an unpaid item claim, please pay within 7 days.
5) Custom duties, taxes, or charges are not included in the cost you pay to us.
We only ship this item to United States !
1. We ship to your eBay address. Each package will be shipped by UPS or Fedex with tracking number.
2. Ship within 1 business day once payment completed. Orders placed on weekend will be shipped within 3 days.
4. Seriously promise: Refund or resend will be offered if item still not arrive in 7-10 business days. Just send us an email ,we will give you a satisfied solution as soon as possible.
If you send us an e-mail, it will be answered within 48 hours during our working hours.
Please feel free to contact us if you have any questions:
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✅Dear customer, when you want to return or exchange goods
(Please contact us first, instead of directly initiating a dispute)
1: Contact the seller first
2: Send pictures: outer packaging& scanned labels& item itself& with complete accessories, etc
necessary condition
Rule A: The original packaging of the item is in an unused state.
Rule B: The outer packaging must not have any damage.
3: Obtain return label
4: Delivered Projects - Payment Repayment
✅A 15% restocking and shelving fee will be charged for returns or exchanges that are not caused by the seller and are in good condition.
Exchange will not charge restocking fees or shipping fees due to transportation errors
✅Priority
In case of the following reasons, the freight will be borne by the buyer
1: Unexpected order
2: Find a better price
3: Change your mind
4: Buy more items/make mistakes/misread model information
✅Please note
Missing accessories/quality issues/transportation damage, etc
Please contact us first to obtain a good solution, rather than directly opening a return dispute.
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Important Points
➡️ before Placing an Order, Be Sure to Check the Compatibility and Confirm That This Part Is Suitable for Your Vehicle.
➡️ to Confirm, Please Select a Vehicle from the "My Garage" List or Enter Your Vehicle Details Above to Ensure That Your Model Is Included in the Compatibility Table.
➡️ if You Encounter the Problem That You Can't Confirm Whether the Model Is Suitable, Please Contact Me. I Can Quickly Answer the Adaptability Problem for You. Thank You for Your Cooperation and Support!
✅ Ebay Compatible List Can Not Show up All Car Model, and Sometimes It May Have Mistake, and May Not 100% Accurate or out of Date.
✅ Please Check the Manual of Your Vehicle and Choose the Correct Good.
✅ If You Are Not Sure the Which Socket Your Vehicle Need.
✅ Please Send Us Your Car Make, Model, Year and Other Information,We Will Help to Check Which You Need.
✅ If You Have Any Questions, Please Do Contact Us.thank You!