Standard Ignition GP128 Diesel Glow Plug

Diesel Glow Plug for GM 1.6L Applications

Standard Ignition GP128 is a diesel glow plug built to support cold-start combustion in diesel engines. It is a direct-fit service part for select Chevrolet Cruze, Chevrolet Equinox, and GMC Terrain applications, with fitment covering 2017-2019 and 2018-2019 model years.

Key Features

• Functions as a diesel glow plug for cold-start assistance
• Standard Ignition GP128 service part for OE-style replacement needs
• Fits 2017-2019 Chevrolet Cruze, N/A
• Fits 2018-2019 Chevrolet Equinox, N/A
• Fits 2018-2019 GMC Terrain, N/A
• Cross-references Gates 21139 for the same application

Product Details

GP128 is designed for diesel engine starting performance by helping raise combustion chamber temperature during startup. For buyers searching for a diesel glow plug for Chevrolet Cruze 2017-2019, Chevrolet Equinox 2018-2019, or GMC Terrain 2018-2019, this Standard Ignition part provides a direct replacement option. The part number GP128 is also useful when cross-checking service catalogs and interchange listings for the same application.

Common Issues It May Address

• Hard starting in cold weather
• Extended crank time during diesel startup
• Rough initial idle after ignition
• Glow plug fault codes related to the affected cylinder circuit
• Uneven cold-start combustion in diesel engines

Installation Notes and Tips

Verify engine application and cylinder location before installation. Inspect the glow plug harness, connector condition, and related control circuit components during service. Follow the vehicle service manual for torque specifications, removal procedure, and any required diagnostic checks after replacement.

Quality Assurance

Standard Ignition supplies replacement ignition components for service use, and GP128 is listed with confirmed vehicle fitment and interchange references for application matching.