NGK Ruthenium HX TR5AHX Spark Plugs for C6 Corvette LS2
NGK Ruthenium HX TR5AHX spark plugs, stock number 94567, fit the 2005–2007 C6 Corvette with the LS2 6.0L engine in stock configuration. This offer includes eight spark plugs supplied as two manufacturer packs of four for a full V8 spark-plug replacement.
For the early C6’s naturally aspirated 6.0L LS2, Ruthenium HX combines a ruthenium-alloy firing tip with a fine platinum ground tip. The double-fine-electrode arrangement is designed to support ignition of the air-fuel mixture while resisting electrode wear. It gives LS2 owners a complete high-ignitability plug set for stock-engine street use, whether the car is a coupe or convertible.
Product Details
- Exact plug identity: NGK 94567, design code TR5AHX, Ruthenium HX.
- Double Fine Electrode design: Fine ruthenium-alloy center and platinum ground firing tips support high ignitability.
- Precious-metal firing surfaces: The ruthenium-alloy center tip provides resistance to wear during repeated sparking.
- Complete V8 quantity: Eight matching plugs in two four-packs; select order quantity one for one engine.
- Included components: Spark plugs only. Plug wires and ignition coils are separate and are not included.
Benefits
- High-ignitability construction: Opposed fine tips help the spark initiate combustion of the air-fuel mixture.
- Wear-resistant firing surface: The ruthenium-alloy center electrode helps resist wear over repeated ignition cycles during regular street use.
- Full LS2 plug service: Replace all eight plugs together when maintaining your early-C6 coupe or convertible for everyday drives.
Important Notes
- Early C6 engine match: Select this set for a 2005–2007 Base car with the 6.0L LS2. The engine and model-year combination identifies the fitment, including the first 2005 model year.
- Coupe and convertible: Both LS2 body styles are covered with manual or automatic transmissions. Roof style and transmission choice do not change the eight-plug quantity required for a complete service.
- Installation gap: Use 0.040 inch (1.02 mm) for this stock LS2 fitment. Measure every plug before installation; do not assume the gap supplied in the box is the required vehicle setting.
- Protect both firing tips: Check with a round-wire or pin gauge. Any adjustment must move only the ground electrode without pressure on the center tip; ask a qualified installer if unsure.
- Installation care: Use clean, dry threads without anti-seize and follow the vehicle tightening specification. Have your engine builder or tuner confirm plug requirements if the engine has been modified.
CORVETTE COMPATIBILITY
- 2005–2007 C6 Corvette Base
- Coupe and convertible
- LS2 6.0L V8, stock configuration
- Manual and automatic transmissions
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 94567 TR5AHX Ruthenium HX spark plugs for your C6 Corvette LS2? Contact us for personal help before you order.
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