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Engineered for durability and optimal performance in outboard engines.
The NGK Standard Spark Plug is designed to deliver reliable ignition and performance for a range of outboard engines, specifically those from Mariner and Mercury manufactured between 1978 and 1999. With a 14 millimeter thread size and a 1/2 inch reach, this spark plug features a nickel ground electrode core and a copper center electrode, ensuring efficient heat transfer and longevity. The trivalent metal plating enhances anti-corrosion and anti-seizing properties, making it suitable for various marine environments.
This spark plug incorporates advanced design elements such as corrugated ribs that prevent flashover and a pure alumina silicate ceramic insulator that provides superior strength and heat management. The copper core aids in effective heat removal, while triple seals are implemented to prevent leakage, ensuring consistent performance under demanding conditions. The U-groove electrode type further enhances ignition efficiency, making this spark plug a reliable choice for marine applications.
Features
- Trivalent Metal Plating Provides Superior Anti-Corrosion And Anti-Seizing Properties
- Corrugated Ribs Prevent Flash Over
- Pure Alumina Silicate Ceramic Insulator Provides Superior Strength And Better Heat Transfer
- Copper Core Aids In Heat Removal
- Triple Seals Prevent Leakage
Specifications
- Manufacturer: NGK Spark Plugs
- Manufacturer Part Number: 703
- Resistor: Yes
- Electrode Type: U-Groove
- Electrode Core Material: Copper
- Electrode Tip Material: Nickel
- Insulator Type: Projected
- Thread Size (IN): 0.551 Inch
- Quantity: Single
- Reach: 1/2 Inch
- Seat Type: Flat
- Wrench Diameter: 13/16 Inch Hex
Shipping & Returns
- This product ships within the continental USA only.
- This product typically ships within 1 to 3 business days.
- Returns are accepted within 30 days for items in like-new condition. For complete details, please see our return policy.
