CRL FW621L Dual-Vent Window – Sprinter Driver Side Forward (2007-2026)

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

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.