Description
NGK-R7438-9 (4656) – NGK Racing Spark Plug
Sold Individually. You must add the required number of plugs to your cart.
Gapping/Setup
These plugs come pre-set from the factory and do not require “gapping” the ground electrode is extremely delicate so we advise you do not attempt to adjust it.
Recommended for bespoke track vehicles or customers running high-powered Stage 3 or beyond with an enthusiastic driving style. Avoid potential misfires when the constraints of tuning are taking their toll on the vehicle.
Features
- Fine Wire Centre Electrode Ensures High Durability and a Consistently Stable Spark
- Iridium Alloy has an Extremely High Melting Point, Perfect for Today’s High-Tech, High Performance Engines
- Trivalent Metal Plating Provides Superior Anti-Corrosion and Anti-Seizing Properties
- Corrugated Ribs Prevent Flashover
- Pure Alumina Silicate Ceramic Insulator, Provides Superior Strength and Better Heat Transfer
- Copper Core Aids in Heat Removal
- Triple Seals Prevent Leakage
Technical Infomation
- Type: Resistor type
- Gap: .9mm (0.04″)
- Insulation Projection: .9mm (0.04″)
Notes: Racing type

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