Washer Fluid Reservoir Cap — Compatible with Buick Regal 2011–2016 (Part #13227300) Why this cap matters Prevents washer fluid leaks and contamination so your windshield washer system works when you need it. Protects the washer pump and reservoir from dirt, moisture, and evaporation, reducing the risk of costly repairs. Direct replacementsized cap for a secure fit and reliable performance. Key features and benefits Compatibility: Designed to fit Buick Regal models from 2011 through 2016. Part number: 13227300. Durable material: Made from quality, impactresistant plastic that withstands temperature changes and road conditions. Secure seal: Precision thread design creates a tight seal to prevent leaks and resist cracking or aging over time. Easy installation: No tools required — remove the old cap and handinstall the cap on the washer fluid reservoir for an immediate fix. Longlasting performance: Built to perform in harsh conditions, maintaining proper washer system function and reducing maintenance frequency. Practical uses (realworld scenarios) a cracked or lost cap after road debris impact or underhood work to stop washer fluid loss and contamination. Install before cold weather to help keep washer fluid from evaporating and reduce the chance of pump strain when cleaning winter grime. Fit during regular vehicle maintenance to restore a proper seal and protect the washer pump from running dry. What you get One replacement washer fluid reservoir cap compatible with Buick Regal (2011–2016), Part #13227300. Simple, reliable replacement that restores reservoir sealing and helps maintain washer system performance. Installation tip Ensure the reservoir rim is clean, align the threads, and handtighten until the cap seats evenly for a leak fit.