CRL RAM ProMaster Passenger Rear Quarter T-Vent Van Window | FW398R

CRL FW398R T-Vent Window – RAM ProMaster Passenger Side Rear Quarter (2014-2027)

**CLEARANCE / ALL SALES FINAL**

Air must move across a van interior to cool it. Intake windows bring fresh air in, but a rear-located opening is what allows heat to leave. Without a rear outlet, air circulation slows and warm air remains inside the living space.

The CRL FW398R passenger rear quarter vent window is shaped specifically for the RAM ProMaster body stamping, creating controlled ventilation while maintaining a clean factory-style exterior appearance.

Vehicle Specific Fit

• Fits RAM ProMaster 2014-2027
• Passenger side rear quarter panel
• High roof and low roof compatibility
• Clamp-ring mounting system

The frame follows the factory stamping so the window integrates naturally into the body lines. 

T-Vent Airflow Function

The tilt-out vent creates a pressure difference that pulls warm air outward while drawing fresh air through forward windows.

• Opens to approximately 45°
• Improves cross-ventilation
• Works with roof fan airflow
• Helps regulate interior temperature

Rear vent placement is typically more effective for heat removal than intake-only openings. 

Removable Screen System

• Fiberglass mesh insect screen
• Clip-in frame
• Easy cleaning
• Simple maintenance

The screen can be removed for cleaning or seasonal use.

Smooth Vent Operation

• Gearbox controlled opening
• Torsion bar assisted movement
• Stable positioning
• Secure closure seal

The mechanism allows controlled opening while compressing the seal when closed.

Solar Privacy Glass

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

Tinted glass helps control interior temperature and visibility. 

Clamp-Ring Installation

Clamp-ring sealing: All clamp-ring installations use the foam seals supplied with the windows. If the seal is not pre-applied, fit the supplied foam seal to the exterior frame as directed for the model. Tighten the mounting screws evenly to compress the seal uniformly.

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

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

Measurements

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

Best Use Locations

• Sleeping areas
• Rear living space
• Hot climate ventilation
• Roof fan exhaust assist

FAQ

Why install a rear 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 can act as intake or exhaust depending on fan direction.

Is the screen removable?

Yes. The insect screen removes easily for cleaning.