NGK 5740 Diesel Glow Plug

Reliable Diesel Glow Plug for Mercedes-Benz E300

The NGK Glow Plug 5740 is engineered to provide consistent ignition performance for diesel engines, specifically designed for the Mercedes-Benz E300. This diesel glow plug ensures efficient cold starts and smooth engine operation under various conditions.

• Material Type: Metal type for durability
• Terminal Thread Size: M4
• System Voltage: 12V
• Operating Voltage: 11.50V
• Length: 4.51 inches
• Terminal Type: Pin
• Hex Size: 12 mm
• Seat Type: Flat
• Thread Diameter: 0.469 inches
• Part Number: Y-925j (Stock Number 5740)

About the NGK Glow Plug Product Line

The NGK Glow Plug line is designed to meet the specific ignition needs of diesel engines by providing reliable heating elements that support quick and efficient engine starts. The NGK Glow Plug 5740 is part of this line, offering precise fitment and electrical specifications tailored for vehicles like the Mercedes-Benz E300.

Technical Details and Compatibility

This diesel glow plug features a metal construction that withstands high temperatures and engine conditions. The M4 terminal thread size and pin-type terminal ensure secure electrical connections. With a system voltage of 12 volts and an operating voltage of 11.50 volts, it integrates seamlessly with the Mercedes-Benz E300’s ignition system. The flat seat type and 0.469-inch thread diameter provide a proper seal and fitment, while the 12 mm hex size allows for straightforward installation and removal.

Common Applications and Problem Resolution

• Improves cold start performance in Mercedes-Benz E300 diesel engines
• Reduces engine misfires related to glow plug failure
• Helps maintain consistent combustion during low-temperature conditions
• Prevents rough idling caused by faulty glow plugs
• Supports overall engine efficiency and emissions control

Installation Notes and Tips

When installing the NGK Glow Plug 5740, ensure the engine is cool to avoid damage. Use a 12 mm hex socket for proper torque application. Verify the flat seat type matches the engine’s glow plug housing to prevent leaks. Check the terminal connection for secure fitment with the M4 thread size and pin terminal to maintain electrical continuity.

Quality Assurance and Warranty

NGK glow plugs are manufactured to meet strict quality standards, ensuring durability and reliable performance. The NGK Glow Plug 5740 undergoes rigorous testing to comply with OEM specifications for the Mercedes-Benz E300. Warranty details are provided by NGK and typically cover manufacturing defects under normal use conditions.