TOYOTA 75710-60021 Black Window Moulding Assembly

The genuine TOYOTA 75710-60021 (Black Window Moulding / Moulding Assy) is a premium-quality, original factory outer window belt weatherstrip moulding that plays a vital role in protecting the vehicle's door structure and internal components. This precision-engineered part ensures an optimal seal between the side window glass and the door outer metal panel, preventing precipitation, dust, and other contaminants from entering the door cavity.

Technical Features and Material Construction

Manufactured according to Toyota's strict quality assurance standards, this moulding provides outstanding durability and weather resistance:

• Material Composition: High-grade EPDM rubber with an integrated metal/plastic reinforcing core, ensuring shape retention and an exact fit.
• Surface Finish: UV-stabilized black coating resistant to direct sunlight, preventing cracking and discoloration.
• Sealing Function: Special flocked inner contact surface that minimizes friction during window movement, effectively wipes moisture away, and prevents glass scratching.
• Installation Position: Outer window weatherstrip (exterior door beltline).

Why Is a Proper Window Moulding Important?

An aged, cracked, or deformed window weatherstrip moulding can lead to severe issues. If the seal is compromised, water can seep into the door interior, leading to the following failures:

• Corrosion and premature failure of the window regulator mechanism and motor.
• Short circuits or oxidation in the central locking actuator and electrical wiring harnesses.
• Water ingress, mold formation, and unpleasant odors in the interior door card/panel.
• Increased wind noise and vibration at higher speeds.

Common Signs of Wear

Replacement is recommended upon noticing any of the following symptoms: the rubber surface becomes stiff or brittle, cracks appear, the moulding pulls away from the door sheet metal, or a squeaking or scratching noise occurs when operating the window due to embedded dirt and dust particles.