NGK Ruthenium HX spark plug with white ceramic insulator, metal shell, threaded body and firing tip on a white background
NGK Ruthenium HX spark plug electrode close-up showing the fine center tip, curved ground electrode and threaded metal shell

C6 Corvette 427 Convertible NGK Ruthenium HX Spark Plugs - LS7

92714

Regular price$143.68
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CCA $9.99 shipping - Continental U.S.

NGK Ruthenium HX TR6AHX Spark Plugs for C6 Corvette 427 Convertible LS7

NGK Ruthenium HX TR6AHX spark plugs, stock number 92714, fit the 2013 C6 Corvette 427 Convertible with the stock LS7 7.0L V8. This offer supplies eight spark plugs as two manufacturer packs of four for a complete spark-plug replacement and regular street maintenance.

The 2013 427 Convertible pairs open-top driving with the naturally aspirated 7.0L LS7 and a six-speed manual transmission. Its ignition service calls for eight matching plugs. Ruthenium HX brings a Double Fine Electrode firing arrangement to that service, pairing a ruthenium-alloy center tip with a fine platinum ground tip to support ignitability and resist firing-tip wear.

Product Details

  • Exact product: NGK 92714, design code TR6AHX, Ruthenium HX.
  • Double Fine Electrode design: A fine ruthenium-alloy center firing tip works opposite a fine platinum ground tip.
  • Precious-metal construction: The firing-tip materials combine high ignitability with resistance to electrode wear.
  • Complete V8 quantity: Eight matching plugs in two four-packs; order quantity one supplies one engine.
  • Package contents: Spark plugs only. Ignition wires and coils are separate components and are not included.

Benefits

  • High-ignitability firing end: The DFE arrangement helps the spark initiate combustion of the air-fuel mixture.
  • Wear-resistant firing tips: Precious-metal electrode surfaces help maintain the firing end through repeated sparking during normal street service.
  • Open-top LS7 maintenance: Replace the complete plug set during routine service on your 2013 427 Convertible, ready for your next road trip.

Important Notes

  • One-year 427 application: Select this set for the 2013 C6 427 Convertible Collector Edition with its stock LS7 7.0L. Confirm the 427 model and engine identity when ordering; the convertible body style alone does not identify this application.
  • Manual-transmission convertible: The 427 Convertible uses a six-speed manual transmission. Keep the replacement plugs protected until installation, and follow the LS7 service procedure when removing and refitting the plug-wire boots.
  • Installation gap: Use 0.040 inch (1.02 mm) for this stock LS7 fitment. Measure every plug before installation; the supplied preset is not a substitute for the vehicle-specific setting.
  • Protect the firing tips: Use a round-wire or pin gauge to check the gap. Any adjustment must move only the ground electrode without pressure on the center tip or ceramic insulator.
  • Dry-thread installation: Install these NGK plugs without anti-seize or lubricant on the threads. Added lubricant changes the tightening conditions, so keep the threads dry and use the vehicle’s specified installation procedure.
  • Inspect before fitting: Check each replacement plug for handling damage before installation. If a plug has been dropped or its fine firing tips appear damaged, have it checked before use.
  • Modified engines: Have your engine builder or tuner confirm spark-plug requirements if your LS7 has been modified.

CORVETTE COMPATIBILITY

  • 2013 C6 Corvette 427 Convertible Collector Edition
  • Convertible body style
  • LS7 7.0L naturally aspirated V8, stock configuration
  • Manual transmission

Why Buy from Custom Corvette Accessories?

At Custom Corvette Accessories, we’re Corvette owners ourselves, and we offer one-on-one customer service to help you choose parts for your car. Have a question about NGK 92714 TR6AHX Ruthenium HX spark plugs for your C6 Corvette 427 Convertible LS7? Contact us for personal help before you order.

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✅ Custom or backordered items ship as soon as available.

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Vehicle Fitment & Specifications

Generation: C6
Trim Level: 427 Convertible
Engine Code: LS7
Transmission Type: Manual
Intended Use: Street

Shipping Information

Boxed Weight: 1.0 lbs
Box Size: 4.1 × 3.9 × 1

Frequently Asked Questions

NGK TR6AHX (92714) fits the 2013 C6 Corvette 427 Convertible LS7 with its stock naturally aspirated 7.0L V8. The 427 Convertible Collector Edition has a six-speed manual transmission.
Yes. This NGK TR6AHX (92714) set is for the 2013 C6 Corvette 427 Convertible Collector Edition with the stock LS7 7.0L V8 and six-speed manual transmission. One order provides eight plugs for the engine.
One order provides eight NGK TR6AHX (92714) spark plugs for your C6 Corvette 427 Convertible LS7. The plugs are supplied as two manufacturer packs of four, so quantity one is a complete V8 plug set.
NGK TR6AHX (92714) uses a Double Fine Electrode design with a ruthenium-alloy center firing tip and a fine platinum ground tip. This DFE arrangement supports high ignitability in the stock C6 Corvette 427 Convertible LS7 application.
Use 0.040 inch (1.02 mm) for NGK TR6AHX (92714) in the 2013 C6 Corvette 427 Convertible LS7 with its stock LS7 engine. Check every plug with a round-wire or pin gauge before installation. Do not assume the factory preset matches the required application gap.

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