NGK 1266 Spark Plug

NGK V-Power Spark Plug Overview

The NGK V-Power Spark Plug 1266 is engineered to deliver reliable ignition performance for select Geo, Saab, and Toyota vehicles. Designed with durable materials and precise specifications, this spark plug supports efficient combustion and consistent engine operation.

• Resistance: 5000 ohms for optimal electrical performance
• Ground Electrode Tip and Configuration: Standard design with nickel material
• Center Electrode: Copper core with nickel tip for durability and conductivity
• Pre-Gap Size: 0.036 inches for precise spark gap
• Thread Diameter: 14 mm with 0.75 inch reach and flat seat type
• Hex Size: 5/8 inch for standard installation tools
• Electrical Terminal: Non-removable nut type
• Manufacturer Heat Range: 5, suitable for moderate engine temperatures

Detailed Product Description

The NGK V-Power Spark Plug 1266 (part number BCPR5EY) features a copper core center electrode with a nickel tip, providing a balance of thermal conductivity and wear resistance. The single ground electrode, also made of nickel, ensures consistent spark delivery. With a resistance of 5000 ohms, this spark plug helps reduce electrical noise and interference. The pre-gap size of 0.036 inches is factory set to optimize ignition timing and combustion efficiency. Its 14 mm thread diameter and 0.75 inch reach make it compatible with a range of engines, including those in Geo, Saab 900, and Toyota models such as the 4Runner, Celica, Corolla, and Prizm.

About the V-Power Spark Plug Line

The V-Power Spark Plug line by NGK is designed to provide dependable ignition components that meet OEM specifications. This product line focuses on delivering consistent spark performance through quality materials like copper and nickel, ensuring durability and efficient engine operation. The 1266 spark plug is part of this line, offering a reliable solution for secondary ignition needs in compatible vehicles.

Applications and Common Issues Addressed

• Replacement for worn or fouled spark plugs in Geo, Saab 900, Toyota 4Runner, Celica, Corolla, and Prizm
• Helps resolve misfires and rough idling caused by degraded spark plugs
• Improves cold start performance and throttle response
• Reduces electrical interference with a 5000 ohm resistor
• Maintains proper combustion efficiency to support fuel economy

Installation Notes and Tips

Ensure the engine is cool before removing old spark plugs. Use a 5/8 inch socket for installation and verify the spark plug gap is set to 0.036 inches if adjustment is necessary. The flat seat design requires proper torque to avoid damage to the cylinder head. The non-removable nut terminal type is compatible with standard ignition wire connectors. Follow vehicle manufacturer torque specifications for best results.

Quality Assurance and Warranty

NGK spark plugs are manufactured to meet strict quality standards, ensuring consistent performance and durability. The V-Power Spark Plug 1266 is built with high-grade materials such as copper and nickel to withstand engine conditions. While specific warranty details may vary, NGK products typically come with a limited warranty against manufacturing defects. Consult NGK or your parts provider for exact warranty terms.