TOYOTA 85386-60070 Windshield Washer Reservoir Cap

The genuine TOYOTA (SKU: 85386-60070) windshield washer reservoir cap (OEM designation: "CAP, WASHER, D") is a premium-quality original component designed to securely seal the washer fluid reservoir. The primary function of the cap is to prevent washer fluid from evaporating or splashing into the engine compartment, as well as to protect the system from external contaminants (dust, dirt, leaves) that could clog the washer pump or spray nozzles.

Technical Features and Functions

• High-Quality Material: Manufactured from durable, chemical- and heat-resistant plastic that withstands high engine bay temperatures and the chemical composition of windshield washer fluids.
• Precise Fitment: As a genuine OEM part, it ensures an optimal seal on the reservoir neck, preventing fluid leaks even under heavy vibration.
• Easy Operation: Ergonomically designed for effortless opening and closing, ensuring quick and spill-free refills.

Signs of Wear or Deterioration

Over time, the washer reservoir cap can degrade due to temperature fluctuations and chemical exposure. The most common issues include:

• Material Fatigue and Cracking: The plastic becomes brittle, cracking or breaking, particularly along the retaining strap.
• Improper Sealing: If the cap no longer seals tightly, washer fluid may evaporate or leak out while driving.
• Ingress of Contaminants: A damaged or missing cap allows dirt to enter the reservoir, which can clog the washer nozzles and cause premature wear of the washer pump.