Washer Reservoir Cap 15- Mustang

The Washer Reservoir Cap for 15–present Mustang models is an essential component designed to ensure the integrity of the windshield washer system. This cap is perfect for those restoring an original Mustang or maintaining a modern S550, providing a reliable seal against debris and contamination.

Manufactured to meet OEM specifications, specifically MPN FR3Z-17632-BL, this cap features a precision-molded design that creates a watertight seal while being easy to remove for fluid refills. Its lightweight construction (0.21 lbs) ensures that it does not add unnecessary burden to the engine bay, while the design allows for smooth threading and a firm hold under various conditions.

Ideal for DIY Mustang enthusiasts and professional shops, this replacement cap helps restore washer system function on 2015-present Mustangs. Original caps can deteriorate over time due to UV exposure and thermal stress, leading to fluid loss or contamination, making this replacement a smart choice for maintaining vehicle performance.