NGK 90046 Diesel Glow Plug

Reliable Diesel Glow Plug for Chevrolet and GMC Vehicles

The NGK Glow Plug 90046 is engineered to provide consistent cold-start performance for select Chevrolet and GMC diesel models. Designed with precision metal components and a threaded terminal, this glow plug ensures efficient ignition in demanding conditions.

• Material Type: Durable metal construction
• Terminal Thread Size: M4 threaded terminal for secure connection
• System Voltage: 12 volts compatible with standard diesel systems
• Operating Voltage: 4.70 volts for optimal heating
• Length: 5.39 inches for proper fitment
• Hex Size: 12 mm for easy installation and removal
• Seat Type: Flat seat ensuring a tight seal
• Thread Diameter: 0.391 inches for precise threading
• Terminal Type: Threaded for reliable electrical contact

About the NGK Glow Plug Product Line

The NGK Glow Plug line is designed to meet the rigorous demands of diesel ignition systems. This product line focuses on delivering consistent heating performance and durability, which is critical for cold starts and efficient engine operation. The NGK Glow Plug 90046 is part of this line, offering compatibility with heavy-duty Chevrolet and GMC diesel trucks.

Detailed Product Description

The NGK Glow Plug 90046 is a diesel glow plug specifically designed for use in Chevrolet Express 2500 and 3500, GMC Savana 2500 and 3500, as well as various Sierra and Silverado 2500 and 3500 HD models. Its metal construction ensures durability under high-temperature conditions, while the M4 threaded terminal provides a secure electrical connection. The flat seat design helps maintain a proper seal within the combustion chamber, preventing gas leaks and ensuring efficient glow plug operation. With a length of 5.39 inches and a hex size of 12 mm, this glow plug fits precisely in the designated engine ports, facilitating straightforward installation and maintenance.

Common Applications and Issues Addressed

• Improves cold start reliability in diesel engines
• Reduces white smoke emissions during engine start-up
• Prevents rough idling caused by faulty glow plugs
• Helps maintain consistent engine temperature during ignition
• Addresses misfires related to glow plug failure

Installation Notes and Tips

When installing the NGK Glow Plug 90046, ensure the engine is cool to avoid damage. Use a 12 mm socket for proper torque application and avoid over-tightening to prevent thread damage. Verify the flat seat is clean and free of debris to ensure a proper seal. The M4 threaded terminal requires secure electrical connection to maintain system voltage integrity. Always replace glow plugs in sets to maintain balanced engine performance.

Quality Assurance and Warranty

NGK glow plugs are manufactured to meet strict quality standards, ensuring reliable performance and durability. The NGK Glow Plug 90046 undergoes rigorous testing to comply with OEM specifications for Chevrolet and GMC diesel vehicles. Warranty coverage details should be confirmed with the original equipment manufacturer or authorized distributor.