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⛽ Filter smarter, drive stronger—because your Duramax deserves the best.
Doc's Diesel Fuel Filter DGF429 is a high-efficiency replacement filter designed for Chevrolet/GMC 6.6L and 3.0L Duramax 2500HD and 3500HD trucks (2017-2025). It features 3-micron filtration at 96.92% efficiency, maximized media surface area for optimal fuel flow, and includes all necessary o-rings for easy installation. This carbon steel filter replaces TP1015 and equivalent models, ensuring peak engine protection and performance.
| ASIN | B08L6X4X51 |
| Best Sellers Rank | #3,997 in Automotive ( See Top 100 in Automotive ) #10 in Automotive Replacement Fuel Filters |
| Brand | Doc's Diesel |
| Customer Reviews | 4.8 4.8 out of 5 stars (445) |
| Date First Available | October 14, 2020 |
| Item Weight | 13.4 ounces |
| Manufacturer | Doc's Auto Parts |
| Manufacturer Part Number | DFD429 |
| Outer Material | Carbon Steel |
| Package Dimensions | 4.69 x 4.02 x 3.98 inches |
| Product Grade | Replacement Part |
| Style | Modern |
| Vehicle Service Type | Truck |
T**.
Great quality
The quality is very high and came with gaskets that fit perfectly. This is an easy diesel filter change. Would recommend and have used before.
W**.
Great product
Fit as it should. Seems to filter well
A**R
Perfect Part for the job
Great quality. Awesome price
D**L
super easy to change
Fit my 2025 GMC 1500 perfectly, also cleared code P0087. It took less than 5 minutes to change; you will need a 36mm socket.
E**H
Parts fit
Parts fit
T**.
Docs parts
Every part I have gotten is of the highest quality and a fair price
J**S
As described
Works and fits as described on my 2021 GMC Sierra Elevation 3.0 Duramax diesel.
A**R
Excellent filters
OEM Quality and slightly more affordable
A**R
Good
A**R
Great
S**N
Doesn’t seal properly on my 2022 3500 duramax . Won’t buy again
A**M
This is a cheep fuel filter compare to Oder filter I bought from this seller the price is lower but the quality is not there .i never bought again from this seller
D**L
Dont buy this filter it wont work, does not snap into the bottom housing like it should.
Trustpilot
1 month ago
2 months ago