VWD Sprinter Passenger Rear Quarter Bump-Out Extension (Blemished) | SR1034-BLEM

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 Van Bump Out (BLEMISHED) Passenger Side Rear Quarter Extension | VWD SR1034-BLEM
Passenger-side rear-quarter bump-out for Sprinter 144- and 170-wheelbase vans. Blemished pricing. Cosmetic imperfections only. Function and fit stay the same. Includes the VWD half-slider bunk window.
Important Fitment Notice: This product will not work with SR101-AW or SR101-DS windows without sliding door extensions, spacers, or other modifications.

Key Features
- Blemished unit. Cosmetic imperfections only. No impact to structure, fit, or performance.
- Fits Sprinter 144 and 170 wheelbase
- Position: passenger side rear quarter extension
- Matte black finish. Install-ready. Paintable if you want a color match.
- Integrated 12V LED light bar with pig-tail wiring
- Includes VWD half-slider bunk window standard
- Optional upgrade available: all-glass awning window
- When available, normally ships in 3–5 Business Days (plus carrier transit time)
- Warranty: 1 year
Fitment
- Vehicle: Mercedes Sprinter
- Wheelbase: 144 and 170
- Position: passenger side rear quarter
- Note: all-glass awning window upgrade is not recommended for 144 wheelbase vans when installed behind a sliding door.
- Note: not recommended for 170-wheelbase vans with windows installed in the 2nd row.
Technical Specifications
| SKU | SR1034-BLEM |
|---|---|
| Product Type | Sprinter Van Bump Out / Rear Quarter Extension |
| Condition | Blemished (Cosmetic Only) |
| Vehicle | Mercedes Sprinter |
| Wheelbase Fitment | 144 and 170 |
| Position | Passenger Side Rear Quarter |
| Finish | Matte Black |
| Lighting | Integrated 12V LED Light Bar (pig-tail wiring) |
| Included Window | VWD Half-Slider Bunk Window |
| Upgrade Option | All-Glass Awning Window (optional) |
| Warranty | 1 Year |
Description
Need more sleeping width, more usable interior space, and better airflow in your Sprinter build. This passenger-side rear quarter-bump-out adds real room where it matters. Blemished units deliver the same fit and function at a lower cost because of minor cosmetic finish imperfections. If you plan to paint, refinish, or you just want function first, this is the value play.
What’s Included
- Passenger side bump out, molded for Sprinter 144 and 170 wheelbase
- Matte black finish
- Integrated 12V LED light bar
- VWD half-slider bunk window included standard
- Optional upgrade available: all-glass awning window
Installation
Read the instructions before you cut. Measure twice. Cut once. Dry-fit the bump out and confirm placement. Use the correct sealants and prep steps for fiberglass and metal surfaces.
Installation instructions: INSTALLATION INSTRUCTIONS FOR VWD VAN BUMP OUTS
Explore Related Categories
- Van Bump Outs
- Universal / Bunk Van Windows
- Awning Van Windows
- Sliding Van Windows
- Installation Accessories
- Window Installation Instructions
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 does blemished mean on this bump out?
Blemished means there may be minor cosmetic imperfections in the matte black finish. These do not affect structure, fit, performance, or installation.
What vans does SR1034-BLEM fit?
Mercedes Sprinter 144 and 170 wheelbase vans. Position: passenger side rear quarter extension.
What is included with the bump out?
Passenger side bump out, matte black finish, integrated 12V LED light bar, and a VWD half-slider bunk window included standard.
Is the all-glass awning window upgrade recommended behind a sliding door?
Not recommended for 144 wheelbase vans when installed behind a sliding door due to potential contact and breakage risk.
Any other important fitment notes?
Not recommended for 170 wheelbase vans when windows are installed in the 2nd row.
Installation & Support
Why Virtus
The road doesn't wait for the almost-right build.
Our modular architecture means your van grows with you — reconfigure it for weekend climbing trips, retrofit it for a season on the road, or strip it back for work Monday morning. No tools required. No compromises made.






















