1999-2018 Chevy Silverado GMC Sierra 1500 Cab Pressure Relief Air Vent OEM 13596856

Genuine OEM GM Body Pressure Relief Valve – 13596856

Restore your vehicle’s cabin ventilation with this genuine recycled OEM GM body pressure relief valve from Part Xperts USA. Also called a rear cab air vent, cabin pressure vent, pressure relief grille, or body exhaust vent, this component provides an outlet for air leaving the passenger compartment.

Part Number & Interchange

• OEM GM part number: 13596856

• Cataloged superseded GM numbers: 15037013, 15053675, 15196388, 15927977, 25809298

• Aftermarket cross-reference: Dorman 59111. This reference identifies an aftermarket replacement; the part offered here is genuine recycled GM OEM.

Compatible Vehicle Applications

Applications below apply to vehicles equipped with this specific vent design.

Cab configuration and equipment affect application. These year ranges do not establish fitment for every body configuration.

Additional cataloged applications include:

Location & Function

On Silverado pickup applications, the pressure relief vent mounts in the rear cab panel behind the passenger compartment, between the cab and pickup bed. It allows cabin air to escape as the ventilation system supplies outside air and when doors close. The valve’s flaps regulate outward airflow as part of the vehicle’s cabin ventilation system. Mounting location and access differ on SUV applications.

Basic Removal & Installation Overview

1. Park on a level surface, apply the parking brake, and switch off the ignition.

2. Consult the vehicle-specific service procedure for access to the body pressure relief vent.

3. Protect adjacent paint and trim before beginning removal.

4. Remove or reposition access components only as directed by the service procedure.

5. Carefully release the vent’s retaining tabs without damaging the surrounding body opening.

6. Remove the old vent and clean debris from the mounting surface.

7. Compare the replacement vent’s housing, retaining tabs, and orientation with the removed part.

8. Align the replacement vent with the body opening and press the housing into place until its retaining tabs are fully seated.

9. Check that the vent is secure and its flaps move freely without obstruction.

10. Reinstall any removed components and check the finished installation.

The vent uses clip attachment; access procedures vary by vehicle and cab configuration.

90-Day Standard No-Questions-Asked Return Policy

Shop confidently with Part Xperts USA. This part includes our 90-day standard no-questions-asked return policy, giving you added confidence in your purchase. Contact us within the 90-day return period to arrange a return.

Fitment & Condition

Confirm the part number and fitment by VIN before ordering. Installation should be performed by a professional technician. All our parts come from recycled vehicles and have normal wear, tear, and scratches. Please review every product picture closely for imperfections before purchasing. We do our best to photograph defects up close; customers are responsible for reviewing the pictures and making sure they are satisfied with the part’s condition before ordering.