CRL FW623L Dual-Vent Window – Sprinter Driver Side Rear Quarter (170 / 170EXT | 2007-2026)

Airflow inside a camper van only works when air has a place to exit. Forward windows bring fresh air in, but rear-located vents remove heat. Without a rear outlet, airflow stalls and interior temperatures remain elevated.

The CRL FW623L is a vehicle-specific dual-vent rear quarter window designed for the 170" and 170EXT Sprinter, providing controlled exhaust ventilation while maintaining a classic factory-style appearance.

Vehicle Specific Fit

• Fits 2007-2026 Sprinter Vans
• 170" and 170EXT wheelbases
• High roof and low roof models
• Driver side rear quarter panel
• Clamp-ring installation

The window follows the original body stamping for clean exterior integration. :contentReference[oaicite:0]{index=0}

Dual-Vent Exhaust Airflow

Two independently opening vents allow heat to leave the van while fresh air enters from forward windows, completing the airflow path.

• Opens to approximately 45°
• Improves cross-ventilation
• Works with roof fan exhaust
• Reduces trapped interior heat

Rear exhaust windows are typically the most effective location for heat removal. 

Vent Operation System

• Gearbox and torsion bar assisted opening
• Stable positioning
• Smooth operation
• Secure closure seal

The vent glass tilts outward and retracts seamlessly during operation. 

Removable Screen

• Fiberglass mesh screen
• Powder-coated aluminum frame
• Clips into vent opening
• Easy removal for cleaning

The screen provides airflow while preventing insects from entering. 

Solar Privacy Glass

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

Tinted glass helps regulate interior comfort and protects materials from sun exposure.

Clamp-Ring Installation

• Interior mounting ring compression seal
• Pre-applied EPDM outer seal
• No permanent bonding required
• Serviceable installation

The clamp-ring sandwiches the sheet metal between inner and outer frames for a secure mount. 

Measurements

Outer Dimension: 49-1/16" W x 30-1/8" H

Frame Dimension: 41-3/8" W x 24-1/2" H

Front Vent Opening: 17-1/2" W x 5-7/8" H

Rear Vent Opening: 17-3/8" W x 5-7/8" H

Best Installation Location

• Rear sleeping areas
• Hot climate ventilation
• Paired with forward intake windows
• Roof fan exhaust assist

FAQ

Why install a rear quarter vent window?

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

Is it bonded or clamp-ring?

Clamp-ring compression mounting.

Does it work with roof fans?

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

Is the screen removable?

Yes. The insect screen can be removed for cleaning.