PPE 114003000 Billet Aluminum Engine Oil Filler Cap | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Features:

• Fits 2001–2016 6.6L Duramax engines
• Precision CNC machined billet aluminum design
• Cam-lock fit prevents oil cap blow-off
• Easy-grip top for quick removal and install
• Designed to fit OEM and aftermarket filler necks
• Includes durable Viton O-ring seal
• Enhances underhood appearance with premium look
• Improves reliability over plastic factory caps
• Resists heat and oil exposure over time
• Simple drop-in replacement for factory oil cap

Add A Clean Custom Look With A Cap That Actually Works

If you're looking to add both function and a polished look to your Duramax engine bay, the PPE Billet Aluminum Engine Oil Filler Cap is a small upgrade that delivers big results. Designed for 2001–2016 Silverado and Sierra 2500HD and 3500HD models, this cap not only replaces the boring stock plastic version but also offers a precision fit and solid construction you can feel. Milled from billet aluminum and finished with an easy-grip design, it's simple to install and remove even in tight engine compartments. More than just good looks, the secure cam-lock fit ensures the cap stays firmly in place, eliminating worries of blow-off under pressure. Whether you're at a show or under the hood for routine maintenance, this cap adds that subtle detail that speaks to quality and attention to detail. It also comes equipped with a Viton O-ring for a leak-resistant seal, giving you durability that lasts through heat and time. If you're the type who appreciates clean aesthetics and dependable upgrades, this oil cap is a perfect addition to your build.

Built For Reliability And Precision Fit In High Heat Environments

The PPE 114003000 Billet Aluminum Engine Oil Filler Cap is engineered as a high-performance replacement for stock plastic caps on 2001–2016 GM 6.6L Duramax engines. Crafted from billet aluminum using CNC machining processes, it offers increased strength and heat resistance in a part that endures extreme engine conditions. This cap features a cam-lock design that locks into the filler neck securely, ensuring it remains in place even under vibration and elevated crankcase pressure. It fits both OEM and aftermarket filler necks, making it a versatile option for stock or modified applications. The Viton O-ring included with the cap offers excellent sealing properties, resisting oil breakdown and heat-induced hardening over time. Its textured, easy-grip design improves accessibility during service, especially in tight spaces. With improved durability, a leak-free seal, and premium construction, this filler cap brings long-term reliability to an often-overlooked component. It’s a smart upgrade for diesel owners who want to tighten up the details of their build without sacrificing performance.

Fits: 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Notes:

• Fits 2001–2016 GM 6.6L Duramax engines in Silverado and Sierra 2500HD/3500HD models.
• Precision CNC machined from billet aluminum for strength and longevity.
• Designed to eliminate oil cap blow-off under pressure.
• Cam-lock fit ensures secure seating in both OEM and aftermarket filler necks.
• Easy-grip design makes install and removal simple, even in tight spaces.
• Includes a Viton O-ring for enhanced sealing and resistance to heat and oil.
• Offers both functional improvement and an upgraded appearance under the hood.
• Intended as a direct replacement for factory oil filler caps.