VWD Sprinter Driver Rear Quarter Bump-Out Extension | SL1034-EXT

Now includes an exclusive VWD window ring

VWD bump-outs now come with an exclusive window mounting ring for easier installation on fiberglass bump-outs. The adjusted 6mm depth replaces the standard 3mm-depth ring. Your included VW3310L/R slider comes with CR-VW3310-EXT; choosing the AG3310-EXT awning upgrade replaces it with CR-AG3310-EXT. The matching ring is included at no additional charge.

Sprinter Driver Side Rear Quarter Bump Out Extension | VWD SL1034-EXT (2007-2027)

The VWD SL1034-EXT adds real, usable width to the Sprinter driver's-side rear quarter. It is built for 2007-2027 Sprinter 144-, 170-, and 170 EXT-wheelbase vans. Matte black fiberglass, integrated 12V LED light bar, and an included VWD half-slider bunk window. An optional upgrade is available to an all-glass awning window.

Key Features

• Rear quarter bump out extension for Sprinter van conversions
• Matte black fiberglass finish
• Integrated 12V LED light bar with pig-tail wiring
• Includes VWD Half-Slider Bunk Window standard
• Optional upgrade: All-Glass Awning Window
• Designed to add usable interior width for smarter layouts
• 1-year warranty

Fitment

• Vehicle: Mercedes-Benz Sprinter Van
• Years: 2007-2027
• Roof: Low roof or high roof
• Wheelbase: 144, 170, 170 EXT
• Position: Driver Side Rear Quarter

Technical Specifications

Installation

Read the instructions before you cut. Measure twice. Cut once. Use the official VWD Sprinter Bump Out Installation Instructions (PDF) for measurements, layout, and installation steps.

FAQ

How can I clamp the bump-out during installation?

A little preparation makes installation easier: dry-fit the bump-out and have your supports and clamps ready before applying adhesive. Padded C-clamps can be used from the inside where accessible, and suction clamps can help hold the front portion of the bump-out from the exterior. The VWD 6pc Window Installation Clamp Set (VWD6CLMPB) is also a convenient optional add-on when ordering any of the four 1034 bump-out packages. C-clamps are separate tools and are not included in the 6-piece suction clamp set.

Attach suction cups only to clean, smooth, nonporous surfaces, seat the cups first, then adjust the bridges gently. Protect finished surfaces, maintain the adhesive manufacturer's required bond-line thickness, and use only light, even pressure. Clamps should support a properly dry-fitted part; do not use them to force a poor fit, squeeze out the adhesive, or lift the bump-out. Contact VWD with photos if the flange needs excessive force to sit correctly.

What vehicles does this bump-out fit?

Mercedes-Benz Sprinter van model years 2007-2027. Fits 144, 170, and 170 EXT wheelbase. Low roof or high roof. Driver side rear quarter position.

What is included with the driver's side rear quarter extension?

Matte black fiberglass driver side bump out with an integrated 12V LED light bar and pig-tail wiring. A VWD Half-Slider Bunk Window is included standard. An optional upgrade is available to an All-Glass Awning Window.

Where can I find measurements and cut details?

Use the VWD Sprinter Bump Out Installation Instructions (PDF). It provides the most accurate layout and cut details for installation.

Can this help with sideways sleeping?

Yes. Bump outs add usable interior width in the rear quarter. Sideways sleeping potential is typically achieved when paired with the passenger-side bump-out and a bed platform that matches.

Video Courtesy of Sequoia + Salt Vans

A huge thank you to Sequoia + Salt Vans for sharing this incredible video with us.

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With over 250 custom builds completed, their team has earned a reputation for thoughtful design, premium craftsmanship, and van conversions built to last. Every build is designed to help people get off their phones, get into the woods, gather around a fire, reconnect with loved ones, and experience life in a more meaningful way.

If you are on the East Coast, especially in New York, New Jersey, Pennsylvania, or the greater Philadelphia area, check out Sequoia + Salt Vans. They do some truly incredible van builds and are a standout builder for anyone looking for a premium, adventure-ready van conversion.

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