TOYOTA 85316-42011 Windshield Washer Tank Cap

The genuine TOYOTA (SKU: 85316-42011) windshield washer tank cap is a premium-quality original OEM part that provides a secure, tight seal for the windshield washer fluid reservoir. This small yet critical component prevents washer fluid from evaporating or splashing into the engine compartment, while effectively protecting the system from external contaminants (such as dust, sand, and leaves) that could clog the spray nozzles or damage the washer pump.

Key Features and Functions:

• Contamination Protection: Prevents dirt, sand, and other solid particles from entering the reservoir, protecting the washer pump from mechanical wear and preventing nozzle blockages.
• Evaporation and Leak Protection: Ensures washer fluid (especially alcohol-based winter fluid) does not prematurely evaporate or leak out due to engine vibrations.
• OEM Fitment: Genuine OEM design guarantees an accurate, tight fit and easy, tool-free installation.

Technical Specifications:

• Manufacturer: TOYOTA (Original Manufacturer)
• Part Number (SKU): 85316-42011
• Part Type: Windshield Washer Reservoir Cap (Cap, Washer, Tank)
• Material: Durable, chemical- and heat-resistant plastic engineered to withstand high under-hood temperatures and washer fluid chemicals.
• Color: Blue, with a clearly visible windshield washer pictogram for easy identification.

Signs of Wear or Failure:

Although the reservoir cap contains no moving parts, exposure to engine bay heat and chemicals can cause it to degrade over time. Common symptoms include plastic embrittlement, cracking, a broken retaining tab, or total loss of the cap. A damaged or missing cap should be replaced promptly to preserve system cleanliness and proper operation.