2017-2022 Duramax Engine Oil Fill Aesthetic Cap (DUR-ENG-0402)

Fits

Year	Make	Model
2017-2022	Chevrolet/GMC	Duramax w/ 6.6L

Eliminate the look of cheap factory plastic and bring some much-needed character to your 6.6L Duramax engine bay. The engine oil fill cap is a focal point of the upper engine, and our billet aluminum dress-up cover is the fastest way to replace that dull OEM finish with a clean, high-performance look.

Designed to integrate seamlessly with your factory hardware, this cover is engineered to press-fit or glue directly onto the original cap. This ensures you maintain the reliable sealing and easy-grip functionality of the OEM unit while completely transforming the visual appeal of your rig. It’s a simple, reliable upgrade that reflects the quality of the parts you run.

Part Number: DUR-ENG-0402

Why Shop Dirty?

• Canadian-Made Performance: High-performing parts made in-house in our shop in West Kelowna and sourced from across North America with the highest quality standards
• Born in the Shop: Our parts are engineered with real-world experience. Whether it's an OEM fix or a performance upgrade, we build what we know works. We make our parts to solve real-world problems.
• Dirty Made Quality: Our kits are trusted by shops across Canada because we design with the end user in mind. We aren’t just designing the kits; we are installing them every day in our own shop. We use our own products every day. From the first weld to the last bolt, we build tough gear that actually fits, handles abuse, and looks the part.

• CNC machined from premium billet aluminum for a precise fit and long-lasting durability.
• Designed to slide directly over the factory oil fill cap for an instant engine bay upgrade.
• Maintains 100% of the factory cap's sealing performance and ease of use.
• Engineered to withstand high under-hood temperatures and resist chemical fading.

• (1) Dirty Billet Aluminum Engine Oil Fill Cap Cover

Material	Billet Aluminum
Install Type	Press-Fit / Adhesive Over OEM
Origin	Canada

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We overengineer everything we make. It's manufactured to last and tested to prove it, and if by some strange anomaly it ever lets you down, we'll fix it, have a word with whoever built it, and come back stronger. That's the Dirty Lifetime Warranty. Click here for all the details.