Doc's Diesel Fuel Filter DGF429 | Replaces TP1015; Fits GM Duramax 6.6L (2017–2019) & 3.0L (2020+)
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Description
xProduct overview
Doc's Diesel Fuel Filter DGF429 is designed to help shield your fuel system from common contaminants that can affect performance. By separating water, dirt, rust, and debris from fuel, the filter supports clean fuel delivery and helps maintain steady engine operation under demanding conditions. With a focus on robust filtration media, the unit is engineered to maximize surface area for efficient filtration and reliable service. Each filter includes the necessary seals to simplify installation and ensure a proper fit right out of the box.
In real-world use, drivers often notice how a well-filtrated fuel stream can contribute to smoother starts, predictable throttle response, and consistent performance during long drives or heavy-duty use. While results can vary by vehicle and driving conditions, the DGF429 is built to support the goal of clean fuel delivery and dependable maintenance intervals.
Key benefits and features
- Removes contaminants such as water, dirt, rust, and debris to help protect fuel system components.
- Maximizes filtration media surface area for thorough filtration across fuel flow paths.
- 3 micron filtration with a 96.92% efficiency rating in third‑party testing, indicating strong filtration performance.
- Includes o-rings as needed to facilitate a secure seal and easier installation.
Interchange, fitment, and testing
- Interchange: Replaces AC/Delco TP1015, Wix WF10451, Premium Guard DF99173, Purolator F21393.
- Fitment: Compatible with 2017–2019 Chevrolet/GMC 6.6L Duramax 2500HD, 3500HD and 2020–2025 Chevrolet/GMC 3.0L Duramax 2500HD, 3500HD.
- Third‑party tested: 3 micron with an efficiency rating of 96.92%.
- Replacement guidelines: Change according to your vehicle manufacturer warranty; typically every 5,000–10,000 miles, with a 15,000 miles maximum.
Guidance for use
For best results, plan filter replacements alongside routine maintenance so fuel delivery remains consistent, especially during long trips or frequent hauling. The DGF429 is designed to integrate smoothly with the listed Duramax configurations and to simplify cross‑brand replacements where applicable.
Who should consider this filter
Drivers who rely on diesel-powered pickups for heavy loads, daily commuting, or extended highway journeys may find value in a filtration solution that emphasizes debris removal, robust media, and dependable seals. The DGF429 focuses on filtration efficiency and compatible interchange, offering a ready option for those seeking a straightforward replacement without sacrificing filtration quality.
FAQ
Q: Which vehicles are compatible with Doc's DGF429?
A: Compatible with 2017–2019 Chevy/GMC 6.6L Duramax 2500HD/3500HD and 2020+ 3.0L Duramax 2500HD/3500HD.
Q: How often should I replace the DGF429 filter?
A: Follow your vehicle’s warranty; typically every 5,000–10,000 miles, up to 15,000 miles maximum.
Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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