NISSAN 90861-VB000 Tailgate Vapor Barrier

The genuine NISSAN (SKU: 90861-VB000) tailgate vapor barrier (original designation: SCREEN RR WDW) is a crucial protective component located between the vehicle's rear door inner metal structure and the interior trim panel. Its primary function is to prevent moisture, vapor, dust, and drafts from entering the luggage compartment and passenger cabin.

Technical Features and Functions:

• Effective Moisture Protection: Prevents rainwater and condensation that may seep past the rear window or door seals from reaching the tailgate interior trim, preventing mold growth, unpleasant odors, and upholstery deterioration.
• Material Quality: Durable, tear-resistant, and chemical-resistant polyethylene (PE) film engineered to withstand temperature fluctuations and vehicle vibrations.
• Precise Fit: As a genuine OEM part, it precisely follows the contours and mounting points of the tailgate inner metal frame, ensuring complete and seamless coverage.
• Attachment: Typically secured to the sheet metal using specialized butyl sealing tape or adhesive (adhesive sold separately).

Signs of Failure or Wear:

• Water leaks in the luggage compartment, damp or stained trunk carpeting.
• Excessive fogging and condensation on the rear window and inside the cabin.
• Musty, damp odors in the rear area of the vehicle.
• Physical damage to the film (tears, punctures) resulting from previous service work inside the door (such as replacing the wiper motor or lock actuator).

A damaged or missing vapor barrier should be replaced promptly to safeguard interior trim panels and sensitive electrical components (e.g., license plate lighting, latch mechanism, rear wiper motor).