3691 NGK Spark Plugs Spark Plug Non Automotive
3691 NGK Spark Plugs Spark Plug Non Automotive
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3691 NGK Spark Plugs Spark Plug Non Automotive
Experience unmatched performance with the 3691 NGK Spark Plugs, designed specifically for the performance enthusiast. These spark plugs are a part of NGK's prestigious IX Iridium Series, ensuring top-notch quality and reliability.
Key Features:
- Fine Iridium Tip: Guarantees high durability and a consistently stable spark for optimal engine performance.
- Iridium Alloy: Boasts an extremely high melting point, making it perfect for today’s high-tech, high-performance engines.
- Trivalent Metal Plating: Provides superior anti-corrosion and anti-seizing properties for long-lasting use.
- Corrugated Ribs: Effectively prevent flashover, enhancing safety and efficiency.
- Pure Alumina Silicate Ceramic Insulator: Offers superior strength and better heat transfer, ensuring stable operation.
- Copper Core: Aids in efficient heat removal, contributing to better engine performance.
- Triple Seals: Prevent leakage, ensuring maximum efficiency and reliability.
Specifications:
- Reach: 0.709 Inch
- Resistor: Yes
- Electrode Type: Fine Wire
- Core Material: Iridium
- Electrode Tip Material: Nickel
- Insulator Type: Projected
- Thread Size: 14 Millimeter
- Seat Type: Tapered
- Wrench Diameter: 5/8 Inch
- Quantity: Single
Warranty: Limited 90 Day Warranty
Upgrade your engine's performance with the 3691 NGK Spark Plugs. Perfect for any performance enthusiast looking to enhance their vehicle's capabilities.
Shipping & Returns
Shipping & Returns
📦 Shipping:
Orders are processed within 1–2 business days. Standard delivery takes 3–7 business days, depending on your location.
↩️ Returns:
You may return or exchange products within 60 days of receiving your order. Items must be in original condition with proof of purchase. If your item is defective or damaged due to manufacturing issues, we’ll replace it at no additional cost.

