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DMAXSTORE  |  SKU: DMAX-BDC-2024

DmaxStore Billet Aluminum DEF Cap 2020–2025 L5P/LM2/LZ0/LWN Duramax

$62.38


Product Care information

At BackWoods Diesel, we ensure all parts are stored in a clean, dry, and temperature-controlled environment to prevent damage. Our team inspects each part for quality and maintains them according to manufacturer guidelines before shipping.

Delivery and Shipping

At BackWoods Diesel, we prioritize fast and reliable shipping. All orders are carefully packed and dispatched promptly to ensure your parts arrive safely and on time, so you can keep your projects running smoothly without delay.

We deliver top-quality parts with fast, reliable shipping so you can keep your diesel projects moving without missing a beat!

Description

Upgrade your factory plastic DEF cap with the DmaxStore Billet DEF Cap, a high-quality, American-made replacement engineered for all Duramax-powered GM trucks from 2016–2025.

Crafted from 6061-T6 aluminum and finished with a vibrant blue anodized coating, this cap not only improves durability but adds a clean, custom look to your fuel door. The built-in magnet allows you to stick the cap to the inside of the fuel door during DEF fill-ups, while a Viton O-ring ensures a tight, chemical-resistant seal.

This is the last DEF cap you'll need—no more cracking, swelling, or lost caps.

Features:
- CNC-machined from 6061-T6 billet aluminum
- Blue anodized finish for corrosion protection
- Built-in magnet for easy fuel door storage
- Chemical-resistant Viton O-ring
- Direct replacement for GM part #: 23138955
- Proudly made in the USA

What's Included:
- (1) Billet Aluminum DEF Cap
- (1) Viton O-ring
- (1) Built-in storage magnet

Vehicle Fitment:
2020–2025 Silverado HD / Sierra HD 6.6L L5P Duramax
2020–2025 Silverado 1500 / Sierra 1500 3.0L LM2 & LZ0 Duramax
2016–2022 Colorado / Canyon 2.8L LWN Duramax

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DMAXSTORE

DmaxStore Billet Aluminum DEF Cap 2020–2025 L5P/LM2/LZ0/LWN Duramax

$62.38

Upgrade your factory plastic DEF cap with the DmaxStore Billet DEF Cap, a high-quality, American-made replacement engineered for all Duramax-powered GM trucks from 2016–2025.

Crafted from 6061-T6 aluminum and finished with a vibrant blue anodized coating, this cap not only improves durability but adds a clean, custom look to your fuel door. The built-in magnet allows you to stick the cap to the inside of the fuel door during DEF fill-ups, while a Viton O-ring ensures a tight, chemical-resistant seal.

This is the last DEF cap you'll need—no more cracking, swelling, or lost caps.

Features:
- CNC-machined from 6061-T6 billet aluminum
- Blue anodized finish for corrosion protection
- Built-in magnet for easy fuel door storage
- Chemical-resistant Viton O-ring
- Direct replacement for GM part #: 23138955
- Proudly made in the USA

What's Included:
- (1) Billet Aluminum DEF Cap
- (1) Viton O-ring
- (1) Built-in storage magnet

Vehicle Fitment:
2020–2025 Silverado HD / Sierra HD 6.6L L5P Duramax
2020–2025 Silverado 1500 / Sierra 1500 3.0L LM2 & LZ0 Duramax
2016–2022 Colorado / Canyon 2.8L LWN Duramax

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