---
product_id: 332372964
title: "Magnetic Fuel System Cap for GM 3.0L Duramax (2020–2026) | Fits Silverado & Sierra, Prevents Dirt & Contamination"
brand: "generic"
price: "€ 29.40"
currency: EUR
in_stock: true
reviews_count: 8
category: "Generic"
url: https://www.desertcart.fi/products/332372964-magnetic-fuel-system-cap-for-gm-3-0l-duramax-2020
store_origin: FI
region: Finland
---

# Moisture-blocking seal Magnetic cap holder Durable TPU 3D-printed shield Magnetic Fuel System Cap for GM 3.0L Duramax (2020–2026) | Fits Silverado & Sierra, Prevents Dirt & Contamination

**Brand:** generic
**Price:** € 29.40
**Availability:** ✅ In Stock

## Summary

> 🛠️ Lock in purity, fuel your drive with confidence!

## Quick Answers

- **What is this?** Magnetic Fuel System Cap for GM 3.0L Duramax (2020–2026) | Fits Silverado & Sierra, Prevents Dirt & Contamination by generic
- **How much does it cost?** € 29.40 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/332372964-magnetic-fuel-system-cap-for-gm-3-0l-duramax-2020)

## Best For

- generic enthusiasts

## Why This Product

- Trusted generic brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **3D-Printed Toughness:** Crafted from resilient TPU material that resists wear and tear, delivering long-lasting fuel system protection.
- • **Magnetic Convenience:** Securely holds the cap during refueling—no more lost or misplaced fuel caps on your truck bed.
- • **Made in Michigan with Pride:** Support quality craftsmanship and local manufacturing while upgrading your vehicle’s defense.
- • **Precision Fit for Duramax 3.0L:** Engineered exclusively for Silverado & Sierra 2020-2026 models, ensuring a seamless, no-fuss installation.
- • **Ultimate Dirt & Moisture Defense:** Keeps contaminants out, preserving engine performance and preventing costly repairs.

## Overview

This Magnetic Fuel System Cap is a precision 3D-printed TPU accessory designed specifically for GM 3.0L Duramax Diesel engines in Silverado and Sierra 1500 trucks (2020-2026). It offers a tight, durable fit that blocks moisture and dust, protecting your fuel system from contamination. Featuring a magnetic holder for easy cap management during refueling, it combines practical innovation with local Michigan craftsmanship.

## Description

Fuel system cap for General Motors 3.0 Diesel in 1500 pickups. Protect your vehicle's fuel system from unwanted dirt or water. This is specifically for the Duramax Diesel capless fuel system on the Silverado Sierra 3.0L Duramax Diesel engine. If it doesn't have that specific engine in a Half-ton pickup I cannot guarantee fitment. Made of 3D printed TPU material giving it a tough, reliable fit. Just slide it onto your fuel filler neck and it'll keep all the debris away.

Review: Nice little cap Made in Michigan! - Great little cap to keep debris from potentially entering your fuel system. Fits just tight enough feel solid. Typical printed material that should hold up since it really just a press in cap. No threads to strip or break. Plus, it appears to be made in Michigan, my home state! Some say the magnet is too weak, well it's just there to hold the cap when you are fueling. seems strong enough for the intended job. Better than tossing the cap onto your bed rail! The printed "Diesel Fuel Only" is a nice touch top remind my wife the truck take diesel unlike her Blazer.
Review: Fuel Reminder - Perfect fit. Great quality. Great price & looks good. The magnet holds the cap very well.

## Features

- 3D Printed out of Durable TPU Material
- Keeps out moisture
- Keeps out Dust
- Protects Vehicles Fuel System

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B091MS1HX2 |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #2,588 in Automotive ( See Top 100 in Automotive ) #3 in Automotive Replacement Fuel Tank Caps |
| Brand | Generic |
| Color | Green |
| Customer Reviews | 4.6 4.6 out of 5 stars (596) |
| Date First Available | April 4, 2021 |
| Item Weight | 0.81 ounces |
| Item dimensions L x W x H | 2.36 x 2.36 x 0.59 inches |
| Item model number | DFO3.0 |
| Manufacturer | KPCreations |
| Manufacturer Part Number | DFO3.0 |
| Material | Thermoplastic Rubber |
| Product Dimensions | 2.36 x 2.36 x 0.59 inches |
| Style | Tpu |
| Vehicle Service Type | Chevrolet Silverado 1500 3.0 diesel, Chevrolet Tahoe 3.0 Diesel, GMC Sierra 1500 3.0 diesel, GMC Yukon 3.0 Diesel |

## Product Details

- **Brand:** Generic
- **Color:** Green
- **Item dimensions L x W x H:** 2.36 x 2.36 x 0.59 inches
- **Material:** Thermoplastic Rubber

## Images

![Magnetic Fuel System Cap for GM 3.0L Duramax (2020–2026) | Fits Silverado & Sierra, Prevents Dirt & Contamination - Image 1](https://m.media-amazon.com/images/I/81UmklBo4LL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Nice little cap Made in Michigan!
*by P***G on June 9, 2025*

Great little cap to keep debris from potentially entering your fuel system. Fits just tight enough feel solid. Typical printed material that should hold up since it really just a press in cap. No threads to strip or break. Plus, it appears to be made in Michigan, my home state! Some say the magnet is too weak, well it's just there to hold the cap when you are fueling. seems strong enough for the intended job. Better than tossing the cap onto your bed rail! The printed "Diesel Fuel Only" is a nice touch top remind my wife the truck take diesel unlike her Blazer.

### ⭐⭐⭐⭐⭐ Fuel Reminder
*by J***E on October 12, 2025*

Perfect fit. Great quality. Great price & looks good. The magnet holds the cap very well.

### ⭐⭐⭐⭐⭐ Top Quality & Perfect Fit & Protection
*by S***Y on November 21, 2025*

Perfect fit every truck should have this cap installed coming from the factory

## Frequently Bought Together

- Generic GM 3.0 Fuel system cap Magnetic Green Green
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**Shop now:** [https://www.desertcart.fi/products/332372964-magnetic-fuel-system-cap-for-gm-3-0l-duramax-2020](https://www.desertcart.fi/products/332372964-magnetic-fuel-system-cap-for-gm-3-0l-duramax-2020)

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-02-19*