Ford Transit Rear Quarter Sliding Windows | 148 & 148 EXT
Published by VWD on Sep 21st 2026
Ford Transit Rear Quarter Sliding Windows for 148" & 148" Extended Vans
Turn a sealed rear quarter into usable airflow. VWD SE-Series sliding windows are now available for Ford Transit 148" Standard and 148" Extended vans in Medium Roof and High Roof configurations.
If you are converting a Ford Transit into a camper van, adventure van, work van, mobile office or custom travel van, the rear quarter is one of the most valuable places to add ventilation. The challenge has always been finding an opening window that looks like it belongs there. The new VWD SE-Series Ford Transit rear quarter sliding windows are shaped for the Transit body and give builders a clean all-glass appearance with functional fresh-air ventilation.
Instead of dropping a generic rectangular RV window into a sculpted Transit body panel, these VWD designs follow the rear-quarter location of the van. That means you can add airflow near a rear bed, lounge, gear area or living space while keeping the exterior clean and integrated.
Choose the Correct Rear Quarter Window for Your Transit
The most important distinction is whether your van is a 148" Standard or 148" Extended. These vans have different rear-quarter body sections, so the windows are not interchangeable.
| Ford Transit | Driver Side | Passenger Side | Overall Size | Sliding Opening |
|---|---|---|---|---|
| 148" Extended Medium / High Roof 2015–2026 |
TL203-SE | TR203-SE | 54.92" W × 28.23" H | 18" W × 17-7/8" H |
| 148" Standard Medium / High Roof 2015–2026 |
TL204-SE | TR204-SE | 26.30" W × 28.03" H | 6.75" W × 14.75" H |
Ford Transit 148" Extended: Big Rear-Quarter Airflow
TL203-SE — Driver Side Rear Quarter
The TL203-SE is designed specifically for the driver-side rear quarter of the Ford Transit 148" Extended. It combines an all-glass factory-style appearance with a large half-slider opening, built-in bug screen, solar privacy tempered safety glass and secure latch system.
TR203-SE — Passenger Side Rear Quarter
The TR203-SE gives the passenger-side rear quarter the matching opening-window treatment. Use it by itself or pair it with the TL203-SE for a balanced exterior and ventilation options on both sides of the rear living area.
The 203-SE family measures approximately 54.92" wide by 28.23" high and provides a substantial 18" wide by 17-7/8" high slider opening. For a rear sleeping area, lounge or gear space, that opening can make a major difference in how easily fresh air moves through the back of the van.
- Vehicle-specific 148" Extended rear-quarter shape
- Medium Roof and High Roof applications
- 2015–2026 listed fitment
- Large half-slider opening
- Built-in bug screen
- Solar privacy tempered safety glass
- Secure latch system
- Urethane-bonded installation
Best 148" Extended Setup: Buy the Pair
If your floor plan allows both rear quarters to remain usable, installing TL203-SE + TR203-SE creates a matching driver/passenger appearance and gives you the flexibility to ventilate from either side of the van. Add a roof fan or another opening window farther forward and you can create a much more complete airflow path through the living space.
Ford Transit 148" Standard: Compact Rear-Quarter Ventilation
The rear quarter on the 148" Standard Transit is dramatically smaller than the Extended body, so VWD developed the compact 204-SE family specifically for this location.
TL204-SE — Driver Side Rear Quarter
The TL204-SE is designed for the driver-side rear-quarter pocket on a 148" Standard Transit. It uses grey solar privacy glass, a secure sliding vent, tempered automotive safety glass and a clean urethane-bonded installation.
TR204-SE — Passenger Side Rear Quarter
The TR204-SE is the matching passenger-side version for the 148" Standard rear quarter. It provides a purpose-built sliding vent while preserving the sleek all-glass exterior look van builders want.
The 204-SE windows measure approximately 26.30" wide by 28.03" high with a 6.75" wide by 14.75" high sliding opening. The opening is smaller than the 203-SE because the rear-quarter pocket on the 148" Standard body is much smaller.
Why Add an Opening Window in the Rear Quarter?
A rear-quarter slider solves a different problem than a front slider or door window. Many Transit camper layouts put the bed, mattress, cabinetry, electrical systems, bikes or bulky gear in the rear. All of those things can limit circulation exactly where people sleep and where warm, stale air can collect.
- Add ventilation close to the sleeping area
- Create another airflow point for cross-ventilation
- Open the side that best matches wind or campsite orientation
- Maintain a modern all-glass exterior appearance
- Add usable airflow without relying only on a roof vent
- Build a more comfortable rear living or lounge zone
A roof fan is excellent at exhausting air, but it still needs replacement air to enter the van. A rear-quarter slider gives that moving air another path. In a well-planned build, the result is a more useful ventilation system instead of a single opening doing all the work.
Driver Side, Passenger Side—or Both?
If cabinetry, shower walls, electrical equipment or other interior components block one rear quarter, installing a slider on the open side can still add meaningful ventilation. If both pockets are available, a matching pair gives you more flexibility and a symmetrical exterior.
For the 148" Extended, the large 203-SE openings make a pair especially compelling for rear-bed layouts. For the 148" Standard, the compact 204-SE lets builders add ventilation in a body location where a generic universal window can look oversized or out of place.
Complete the Installation: Don’t Stop at the Window
The window gets the attention, but installation accessories are what help turn the cut opening into a professional finished job. The live VWD product pages for these windows offer complementary installation items including urethane, model-specific Trim-Lok edge molding, securing tape, a high-ratio caulking gun and bumper spacers.
Recommended Add-On Package
For a cleaner install and fewer last-minute supply runs, order the window together with the installation materials appropriate for your application:
- Automotive window urethane / installation kit
- Correct Transit rear-quarter Trim-Lok edge molding
- Window securing tape
- 12:1 minimum or professional high-ratio caulking gun
- Window bumper spacers
Urethane-Bonded for a Clean Exterior Finish
The 203-SE and 204-SE rear-quarter windows use a urethane-bonded installation. Dry-fit the window before installation to confirm position and alignment. After the opening is cut, exposed metal should be properly treated, and cleaning, priming, urethane application and cure time should follow the automotive urethane manufacturer’s specifications.
The window should be supported or taped in position during curing, and the vehicle should not be driven until the urethane has reached the required cure specified by the urethane manufacturer.
Read VWD Window Installation Instructions →
203-SE vs. 204-SE: Which One Do You Need?
Do not choose based on which opening size you prefer. Choose based on the body configuration of the van:
148" Standard: TL204-SE driver side / TR204-SE passenger side.
Roof: Medium Roof or High Roof for the listed applications.
Model years: 2015–2026 as currently listed on the VWD product pages.
Ford Transit Rear Quarter Sliding Window FAQ
Which rear quarter sliding window fits a Ford Transit 148" Extended?
Use the TL203-SE on the driver side and the TR203-SE on the passenger side for listed 2015–2026 Medium Roof and High Roof 148" Extended Transit vans.
Which rear quarter sliding window fits a Ford Transit 148" Standard?
Use the TL204-SE on the driver side and the TR204-SE on the passenger side for listed 2015–2026 Medium Roof and High Roof 148" Standard Transit vans.
How large is the 203-SE sliding opening?
Approximately 18" wide by 17-7/8" high.
Does the 203-SE include a bug screen?
Yes. The 203-SE product specifications list a built-in bug screen.
How large is the 204-SE sliding opening?
Approximately 6.75" wide by 14.75" high.
Will a 204-SE work with rear air conditioning?
Not when rear A/C components occupy or obstruct the rear-quarter window pocket. The same restriction applies to factory plastic interior walls or panels extending into the pocket. Inspect the area before ordering or cutting.
Are these windows glued in?
They use a urethane-bonded automotive-glass installation. Follow the urethane manufacturer’s preparation, primer, application and cure requirements.
Upgrade the Rear of Your Ford Transit
The rear quarter is valuable real estate in a van build. VWD SE-Series Ford Transit rear quarter sliding windows give 148" Standard and 148" Extended owners a clean way to add ventilation exactly where many camper layouts need it most.
Choose the window family that matches your Transit, select driver side, passenger side or a matching pair, and finish the job with the proper installation accessories.
Shop the New Ford Transit Rear Quarter Sliders
148" Extended: TL203-SE Driver Side | TR203-SE Passenger Side
148" Standard: TL204-SE Driver Side | TR204-SE Passenger Side
Fitment, dimensions and product features in this article are based on the VWD product listings current as of September 21, 2026. Always verify current fitment and inspect the vehicle before cutting.