CRL FW398L Dual-Vent Window – RAM ProMaster Driver Side Rear Quarter (2014-2026)

**CLEARANCE ITEM / ALL SALES FINAL **

The rear quarter panel controls how air actually moves through a ProMaster interior. Without an outlet location, intake windows alone cannot remove trapped heat. A rear vent completes the airflow path.

The CRL FW398L dual-vent window is a direct-fit window for the RAM ProMaster rear quarter panel, providing adjustable ventilation while maintaining a traditional factory-style appearance.

Vehicle Specific Fit

• Fits RAM ProMaster 2014-2026
• Driver side rear quarter
• High roof and low roof compatibility
• Clamp-ring installation

The window is shaped specifically for the ProMaster body contour to integrate cleanly into the side panel. 

Dual-Vent Airflow Design

Two independently opening vents allow air to move through the van rather than circulate in one location.

• Opens up to 45°
• Improves cross-ventilation
• Supports roof fan airflow
• Controls interior temperature

Dual-vent layouts distribute airflow more evenly than single opening windows.

Removable Screen System

• Fiberglass mesh screen
• Clip-in installation
• Easy cleaning
• Insect protection

The screen frame attaches to the vent opening and removes for maintenance.

Smooth Gearbox Operation

• Torsion bar assisted opening
• Controlled vent positioning
• Stable operation
• Secure closure

The gearbox mechanism allows controlled tilting of the vent glass.

Solar Privacy Glass

• Solar privacy tint
• 28% UV rating
• Reduces heat and glare
• Maintains outward visibility

Tinted glass improves comfort and reduces interior heat buildup. 

Clamp-Ring Installation Method

• Interior mounting ring
• Compression sealing
• No permanent bonding required
• Serviceable installation

The clamp-ring system sandwiches the sheet metal between the outer frame and interior ring for a secure mount. 

Measurements

Outer Dimensions: 44-11/16" x 26-1/8"

Where This Window Works Best

• Rear sleeping areas
• Hot climate ventilation
• Roof fan exhaust assist
• Full camper conversions

FAQ

Why install a rear quarter vent window?

It allows warm air to exit the van and completes the airflow path.

Is this bonded or clamp-ring?

Clamp-ring compression mounting.

Does it work with roof fans?

Yes. It functions as intake or exhaust depending on fan direction.

Are the screens removable?

Yes. The mesh screen can be removed for cleaning.