GM Cowl Vent Retainer 11611110 | Chevy, GMC, Buick, Cadillac | 21672
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GM cowl vent retainer for securing the cowl vent panel on 2010–2017 Chevrolet, GMC, Buick, and Cadillac vehicles. Push-type closed-end design with integrated sealer prevents water intrusion through the mounting hole. Replaces OEM part number 11611110.
Specifications
- Type: Push-type, closed-end with sealer
- Material: Nylon
- Color: Black
- Head Diameter: 18mm
- Stem Length: 20mm
- Hole Size: 6.3mm
Vehicle Fitment
- Buick Enclave (2010–2017)
- Cadillac Escalade (2010–2014)
- Chevrolet Equinox (2010–2017)
- Chevrolet Silverado 1500 (2010–2017)
- Chevrolet Suburban (2010–2014)
- Chevrolet Tahoe (2010–2014)
- Chevrolet Traverse (2010–2017)
- GMC Acadia (2010–2017)
- GMC Sierra 1500 (2010–2017)
- GMC Yukon (2010–2014)
Cross-Reference Numbers
- GM OEM: 11611110
- SMS Part#: 21672
Will this fit my Chevrolet Silverado?
Yes — this cowl retainer fits the Chevrolet Silverado 1500 from 2010 through 2017. It secures the cowl vent panel that runs along the base of the windshield on the engine side.
What does "closed-end with sealer" mean?
Closed-end means the stem tip is solid (not hollow), and the sealer is an integrated gasket around the head that compresses against the panel surface when installed, blocking water and air from passing through the mounting hole.
Does this fit GMC, Buick, and Cadillac vehicles?
Yes — GM part number 11611110 is a multi-brand part used across GMC Acadia and Sierra, Buick Enclave, and Cadillac Escalade from 2010 through 2014 or 2017 depending on the model.
What hole size does this retainer require?
This retainer is designed for a 6.3mm hole. The 18mm head sits flush on the panel surface and the 20mm stem snaps through to secure the cowl vent from behind.
How do I remove this retainer without breaking it?
Insert a flat trim removal tool under the head and pry gently upward — avoid twisting, which can snap the stem. On older, brittle clips, briefly warming the area with a heat gun makes removal easier and reduces breakage.