The ACDelco 16G is the OEM replacement glow plug for 2016-2022 Chevy Colorado and GMC Canyon and 2017-2022 Chevy Express and GMC Savana 2500/3500 vans with the 2.8L Duramax diesel (LWN). It replaces GM 55589332, a ceramic glow plug for 12-volt systems.
Features
- Genuine ACDelco OEM replacement glow plug
- Replaces GM 55589332
- Ceramic heating element, 12-volt system
- 8mm hex, tapered seat, male pin terminal
- Sold individually; the 2.8L uses 4
What's Included
- (1) ACDelco 16G glow plug
When to Replace
Worn or failed glow plugs can cause hard starts or rough running after a cold start, and can set glow plug codes for the affected cylinder.
Before You Order
- 2.8L Duramax only. This glow plug does not fit the 6.6L or 3.0L Duramax.
Installation Tips
GM's TechLink article on ceramic glow plugs includes these handling steps:
- Measure the new plug's resistance before installing it. An open circuit means the tip is broken, and the plug should not be installed.
- Do not install a glow plug that has been dropped.
- Do not put grease or anti seize on the new glow plug, and do not use power tools to install it. Overtightening can crack the ceramic.
- GM notes that the glow plug bore cleaning step used on the 1.6L, 3.0L and 6.6L does not apply to the 2.8L.
Installation Resources
Frequently Asked Questions
How many do I need?
The 2.8L Duramax is a 4-cylinder and uses 4 glow plugs. This listing is for one glow plug.
Can I use anti seize?
No. GM advises against grease or anti seize on ceramic glow plugs, because it can lead to overtightening.
For warranty information, see our Warranty Policy.
