Product: Windshield Washer Fluid Reservoir Bottle Cap (Part #13227300) Compatible with: Buick Encore, Lacrosse, Regal — model years 2014, 2015, 2016 Why you need this cap Restores a secure, leak seal for the windshield washer fluid reservoir to prevent spills, evaporation, and contamination. Protects washer fluid from dirt, water, and debris so your nozzles spray clean fluid and maintain visibility. Durable replacement part made to last — avoids frequent reordering and prevents damage from exposure. Key features Compatibility: Direct fit for Buick Encore, Lacrosse, Regal (2014–2016). Uses part number 13227300 for easy verification. Material: Brand, impactresistant and UVresistant plastic for longterm durability and weather resistance. Seal & protection: Dustproof and waterproof design keeps contaminants out and preserves fluid purity without impairing nozzle performance. Easy installation: Snapon replacement that requires no tools. Remove the old gasket cover and press the cap onto the gasket for a secure fit. Performance benefits Prevents leaks and fluid loss, reducing the need to up washer fluid frequently. Keeps cleaning fluid uncontaminated so wiper nozzles remain clear and effective. Withstands sun exposure and minor impacts without cracking or degrading. Typical use scenarios 1) Winter driving: Prevents washer fluid from becoming contaminated by road salt and slush, ensuring clear windshield spray for safe visibility in snow and slush conditions. 2) Dusty or offroad conditions: Blocks dust and sand from entering the reservoir after driving on dirt roads or construction areas, preserving nozzle function and fluid cleanliness. 3) Maintenance and replacement: a missing, cracked, or worn cap during routine service or after an accidental damage to restore a proper seal and prevent leaks. What's included One windshield washer fluid reservoir bottle cap (part #13227300), compatible with the Buick models and years listed above. Notes Follow the simple replacement step: remove the old gasket cover and install the cap onto the gasket. No special tools required.