Merchant 10010 Air Bleeder Screw | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Features:

• Replaces weak factory plastic bleeder screw
• Durable 6061 aluminum construction
• Includes O-ring for proper sealing
• Black anodized for corrosion resistance
• Designed for GM 6.6L Duramax engines
• Compatible with LB7, LLY, LBZ, LMM, LML
• Prevents air leaks in the fuel system
• Improves long-term fuel system reliability
• Easy installation with included hardware
• Built to handle high engine bay temps

Stop Leaks Before They Start With This Simple Upgrade

If you’ve ever dealt with a cracked or stripped plastic bleeder screw, you know how fast a small part can turn into a big problem. The Merchant 10010 Air Bleeder Screw gives you a reliable and durable solution for your 2001-2016 GM 6.6L Duramax. Designed to replace the factory plastic screw that’s prone to failure, this anodized aluminum upgrade is built to last through years of heat, pressure, and repeated use. Whether you're bleeding your fuel system after a filter change or just maintaining proper system pressure, this screw helps ensure that air stays out and performance stays in. It’s a simple fix that adds a big dose of confidence every time you’re under the hood. Installation is easy with the included O-ring, and once it's on, you won’t have to worry about it cracking or breaking again. For a small part, it offers a big payoff in long-term reliability.

Precision Machined For The Duramax Fuel System

The Merchant 10010 Air Bleeder Screw is crafted from high-grade 6061 aluminum for superior durability and thermal resistance under the hood. Compared to the factory plastic part, this replacement resists warping, cracking, and over-tightening, even after repeated bleeds or under high engine bay temps. The precision machining ensures a snug, leak-free fit every time, while the black anodized finish protects against corrosion and wear. It's designed specifically for GM 6.6L Duramax engines from 2001 to 2016, making it compatible with LB7, LLY, LBZ, LMM, and LML variants. The included O-ring delivers a reliable seal with no need to hunt for extra parts. Whether you're performing routine maintenance or replacing a failed screw, this part installs easily and offers a long-lasting upgrade. It’s a small yet essential piece in keeping your fuel system sealed and efficient.

Vehicle Fitment: 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 GM 6.6L Duramax LB7/LBZ/LLY/LML/LMM

Notes:

• Designed to replace weak factory plastic bleeder screws that can crack or strip easily over time.
• Machined from high-strength 6061 aluminum for superior durability and reliability.
• Black anodized finish resists corrosion and provides added longevity under harsh conditions.
• Includes O-ring to ensure a proper seal and prevent leaks during fuel system bleeding.
• Direct-fit replacement that installs easily using factory hardware—no modifications required.
• Helps maintain proper fuel pressure and system efficiency after fuel filter changes or maintenance.
• Compatible with all 2001–2016 GM 6.6L Duramax engines including LB7, LLY, LBZ, LMM, and LML.
• Prevents potential air intrusion that can affect fuel delivery and engine performance.
• Ideal for routine maintenance or as a preventative upgrade before problems occur.