CRL - FW621L Dual-Vent Window (Driver Side Forward) | 2007+ Mercedes Sprinter
The driver forward position controls fresh air intake inside a Sprinter van. When airflow begins at the front of the living space, air can travel across the interior toward rear exhaust windows or roof fans.
The CRL FW621L is a vehicle-specific dual-vent window designed for 144" and 170" wheelbase Sprinter vans, providing adjustable ventilation while maintaining a traditional OEM-style appearance.
Vehicle Specific Fit
- Fits 2007-2026 Sprinter Vans
- 144" and 170" wheelbases
- High roof and low roof models
- Driver side forward position
- Not compatible with sliding door location
The window follows the factory body stamping to integrate cleanly into the van panel.
Dual-Vent Airflow Function
Two independently opening vents allow air to enter the van and begin circulation across the interior rather than concentrating airflow in one location.
- Front vent opening: 21-7/8" W x 5-3/4" H
- Rear vent opening: 20" W x 5-3/4" H
- Improves cross-ventilation
- Works with roof fan systems
The bottom vent glass panels open separately for adjustable airflow control.
Classic Clamp-Ring Installation
- Interior mounting ring compression seal
- Weather-tight EPDM seal
- No permanent bonding required
- Serviceable installation
The clamp-ring mounting system sandwiches the sheet metal between inner and outer frames to create a sealed installation. :contentReference[oaicite:2]{index=2}
Solar Privacy Glass
- Solar privacy tint
- 28% UV rating
- Reduces heat and glare
- Maintains outward visibility
Tinted glass helps regulate interior temperature and protect the cabin from sun exposure.
Vent Operation & Screens
- T-handle gearbox opening
- Torsion bar assisted movement
- Stable positioning
- Removable fiberglass mesh screens
The torsion bar and wheel system stabilizes the vent glass during operation. :contentReference[oaicite:4]{index=4}
Measurements
- Outer Dimension: 55-3/8" W x 30-1/4" H
- Frame Dimension: 50" W x 24-7/8" H
VWD Alternative Option
If you prefer Van Windows Direct offers a purpose-built alternative:
VWD Dual-Vent Window – SL101-DV
- More Robust Gear Boxes
- Better UV Filtration Glass
- Fully Coated Torsion Bars for longer life
- 1-Yr vs 1 Month Warranty
Best Use Locations
- Fresh air intake location
- Paired with rear exhaust windows
- Works with roof fans
- Sleeping and living areas
VWD Alternative Option
If you prefer Van Windows Direct offers a purpose-built alternative:
VWD Dual-Vent Window – SL101-DV
- More Robust Gear Boxes
- Better UV Filtration Glass
- Fully Coated Torsion Bars for longer life
- 1-Yr vs 1 Month Warranty
FAQ
Where should this window be installed?
Driver side forward panel, not sliding door.
Is it bonded or clamp-ring?
Clamp-ring compression mounting.
Why install a forward vent window?
It acts as the intake portion of a full airflow path.
What is the difference from the SL101-DV?
SL101-DV has improved gearboxes, torsion bars, better glass filtration, a longer warranty, and a company reputation.
