Wehrli 100216 Billet Brake Reservoir Cap - Black Anodized | 1999-2025 GM Silverado/Sierra 2500HD/3500HD

Features: - Direct replacement billet reservoir cap - Not a cover, complete replacement cap - CNC machined from solid billet aluminum - Black anodized finish for clean look - Includes new diaphragm seal - Installs in seconds with no tools - Improves engine bay appearance - Compatible with 1999–2025 GM trucks - Fits all Duramax engine variants - Made in the USA OEM Brake Master Cylinder Cap with Black Finish If you're dialing in the details under the hood of your GM 2500/3500 truck, the Wehrli Billet Brake Reservoir Cap in Black Anodized is one of those small upgrades that makes a big visual impact. It replaces the factory plastic cap with a precision-machined billet aluminum piece that fits like OEM but adds a far more refined look. This isn’t just a decorative cover, it’s a full replacement cap that’s built to last. The black anodized finish gives it a clean, stealthy appearance while offering strong resistance to brake fluid, heat, and corrosion. It holds up just as well as it looks. Wehrli includes a brand-new diaphragm seal to ensure everything functions exactly as it should. Installation is quick and painless, no tools, no hassle. It’s a direct fit for 1999–2025 Silverado and Sierra HD trucks and works with all Duramax platforms. Fits: 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 GM 2500HD/3500HD Notes: - Direct replacement for OEM brake reservoir cap - This is a complete cap, not just a decorative cover - CNC machined from solid billet aluminum - Black anodized finish resists brake fluid and corrosion - Includes a new diaphragm seal for proper function - Installs in seconds with no tools required - Enhances engine bay aesthetics with a clean, custom look - Compatible with 1999–2025 GM 2500HD and 3500HD trucks - Fits all Duramax engine variants across those model years - Made in the USA with high-quality materials