If you’re aiming for a quieter, more polished van interior, Installing DuraTherm Door Liners for the RAM ProMaster City is a smart upgrade. These liners not only improve insulation but also add a clean, professional finish that holds up on the job. In this article, we’ll break down the install process, highlight key features, and share expert tips to help you get it done quickly and efficiently.

Why Installing DuraTherm Door Liners in RAM ProMaster City Matters

We operate in tough conditions. Therefore, protecting your doors from dents and dings is crucial. Moreover, these liners add an insulated barrier that regulates interior temperature. Finally, the grey vinyl finish delivers a sleek, factory-quality look that stands up to daily wear.

Overview of the DuraTherm Door Liner Kit

The DuraTherm Door Liner Kit from Legend includes:

  • Side door panels tailored to RAM ProMaster City contours
  • Rear door liners for glass-delete models
  • Self-threading screws and plastic cap covers
  • Pre-scored cut lines for custom handle and latch openings

We source these kits because they meet our stringent quality standards. As a result, each liner fits precisely and lasts for years.

Key Features of DuraTherm Door Liners

When you choose this kit, you benefit from:

  • Pre-scored trim lines for fast, accurate cuts
  • Rigid insulation core to prevent panel sag
  • Self-threading hardware that threads into sheet metal
  • Removable cap covers for a polished finish

Furthermore, the vinyl surface resists moisture and stains. Consequently, you maintain a clean, professional interior even in wet conditions.

Step-by-Step Guide to Installing DuraTherm Door Liners in RAM ProMaster City

  1. Prepare the Door Surface
     First, we clean the door panels thoroughly. Next, we remove handles or trim that interfere with liner placement.
  2. Test-Fit Each Panel
     We hold each liner against the door to verify fit. Meanwhile, we identify pre-scored openings for handles and latches.
  3. Score and Snap Trim Areas
     Then, we use a razor blade to score along pre-cut lines. Consequently, the waste material snaps off cleanly.
  4. Position the Liner
     Next, we align the liner with the door frame. We ensure that handle cutouts match perfectly.
  5. Insert Clips and Screws
     We install plastic clips first, then drive self-threading screws. However, we apply light pressure to avoid tearing.
  6. Cap and Finish
     Finally, we snap on the screw cap covers for a neat look. Then, we test the door handle function and make minor adjustments if needed.

Pro Tips for Flawless Door Liner Installation

  • Use Blue Loctite: Apply a drop on screws to prevent loosening.
  • Avoid Over-Tightening: Excess force can strip threads or warp caps.
  • Work in Sequence: Install wall and ceiling liners before door liners.
  • Keep Extra Hardware: The kit includes spare clips and screws for safety.

By following these practices, you ensure a durable, professional installation every time.

Customizing Your Door Liner Setup

If your ProMaster City has non-standard features, don’t worry. You can:

  • Drill custom openings for additional switches or lights
  • Trim panels to accommodate bulkheads or partitions
  • Combine with full Legend liner packages for a complete upfit

Moreover, we recommend planning your layout in advance. That way, you avoid rework and wasted material.

Transform Your Mobile Workspace

At Upfit Supply, we know that installing DuraTherm Door Liners in RAM ProMaster City enhances both insulation and professionalism. With precision fit, easy-install hardware, and a sleek vinyl finish, these liners belong in any well-equipped van. Ready to upgrade your setup? Explore our liner options:

With Upfit Supply, you get products that work as hard as you do—no exceptions.

Products Featured In This Video