Fits: 2017 thru 2022 Chevy Silverado/GMC Sierra 2500HD/3500HD L5P & Chevy Colorado/GMC Canyon LWN Duramax Diesels 

Brand new aftermarket replacement Indirect Injector. Also known as the "9th" injector, dosing valve, or hydrocarbon injector. Fuel Line Removal Tool may be needed to disconnect the injector line.

Replaces Part#'s:

• GM 12641278
• GM 12717296