Coolant Surge "Reservoir" Tank Cap, 2011-2016 LML

Fits: 2011 thru 2016 Chevy Silverado/GMC Sierra 2500HD/3500HD LML Duramax Diesel

OEM GM replacement surge(a.k.a radiator) tank cap. Faulty caps and aftermarket replacements can cause many different issues in the cooling system. 

Includes:

• OEM Coolant Reservoir Cap

Replaces Part#:

• GM 13502509