NGK 97788 Diesel Glow Plug

Reliable Diesel Glow Plug for Chevrolet and GMC Vehicles

The NGK Glow Plug 97788 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
• Terminal Type: Threaded terminal for reliable electrical contact
• Hex Size: 12 mm for easy installation and removal
• Seat Type: Flat seat ensuring proper sealing
• Thread Diameter: 0.391 inches for precise fit

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 97788 is part of this line, offering reliable ignition support for heavy-duty Chevrolet and GMC diesel vehicles.

Detailed Product Description

The NGK Glow Plug 97788 (also referenced as part number Y1032as) is specifically manufactured for diesel engines requiring a 12-volt system voltage and a 4.70-volt operating voltage. Its metal construction ensures durability under high-temperature conditions, while the M4 threaded terminal and flat seat design provide secure electrical connections and proper sealing within the combustion chamber. The 5.39-inch length and 0.391-inch thread diameter make it compatible with a range of Chevrolet and GMC models, including Express 2500, Express 3500, Savana 2500, Savana 3500, Sierra 2500 HD, Sierra 3500, Silverado 2500 HD, and Silverado 3500.

Common Applications and Issues Addressed

• Improves cold engine starting in diesel Chevrolet and GMC trucks
• Replaces worn or faulty glow plugs causing hard starts
• Restores proper combustion chamber heating for efficient fuel ignition
• Helps reduce white smoke emissions during engine start-up
• Prevents engine misfires related to glow plug failure

Installation Notes and Tips

• Ensure engine is cool before removing old glow plug to avoid damage
• Use a 12 mm hex socket for installation and removal
• Check terminal connections for corrosion and clean if necessary
• Torque glow plug to manufacturer specifications to prevent leaks
• Verify flat seat contact for proper sealing in the combustion chamber

Quality Assurance and Warranty

NGK glow plugs are manufactured to meet strict quality standards for durability and performance. The NGK Glow Plug 97788 undergoes rigorous testing to ensure compatibility and reliable operation in specified Chevrolet and GMC diesel models. Warranty coverage details should be confirmed with the original equipment manufacturer or authorized distributor.