Genuine OEM Jaguar Windshield Washer Tank Cap, part number C2S4055. This cap seals the windshield washer fluid reservoir, preventing leaks and contamination of the fluid. It is typically located on top of the reservoir in the engine bay. Made from durable plastic, this cap features the universal windshield washer symbol. Choosing a genuine OEM cap ensures a perfect fit and reliable seal, maintaining the integrity of your vehicle's washer system.