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⛽ Keep your Cummins running clean and mean — don’t let contaminants steal your power!
Doc's Diesel Fuel/Water Separator DGF430+DGF401 is a high-efficiency, dual-stage fuel filter system engineered for 2019-2024 RAM 6.7L Cummins trucks. Offering 96.92% filtration at 3 microns, it removes water, dirt, rust, and debris to protect fuel system components, optimize fuel flow, and boost engine performance. This exact OEM replacement includes all necessary o-rings and fits models 2500 through 5500, ensuring reliable, long-lasting operation aligned with manufacturer maintenance schedules.
| ASIN | B08KGSJ964 |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #4,275 in Automotive ( See Top 100 in Automotive ) #12 in Automotive Replacement Fuel Filters |
| Brand | Doc's Diesel |
| Customer Reviews | 4.7 4.7 out of 5 stars (522) |
| Date First Available | September 22, 2020 |
| Exterior | Painted |
| Item Weight | 1.06 pounds |
| Item model number | DGF430+DGF401 |
| Manufacturer | Doc's Auto Parts |
| Manufacturer Part Number | DGF430+DGF401 |
| Model | DGF430+DGF401 |
| Outer Material | Metal |
| Package Dimensions | 9.69 x 4.8 x 4.13 inches |
| Product Grade | Replacement Part |
| Style | Modern |
| Vehicle Service Type | Truck |
J**E
Quality filter
Perfect fit for my 19 6.7 Cummins. Good quality and are exact oem size. Won’t do anything else than these. Also got the crankcase filter as well
D**Y
2020 Ram Cummins
This is the second time I've ordered and installed it. It fits perfectly, and there are no performance issues at all. I will definitely recommend it to save yourself a buck or two.
S**E
Good filter
Good filters
B**R
2023 Ram 2500 perfict fit
After two months no issues and a perfect fit for 2023 Ram 2500.
S**R
Great
Price is great. Used on 2021 Ram 2500 with Cummins. Fit perfectly. Dealer charges 400 for this service. Only took about 30 minutes saved a lot of money.
R**N
Looks good
This is good quality filters, but I don’t know how it would work with RAM2500 diesel because RAM is sensitive and only Mopar brand fits right , but wanted to give a try. I will update my review in a week
C**E
Quality
Product was a perfect fit, less cost than the factory replacements. Ream of reviews abound on the forums raving about Docs products. Do your wallet a favor order with confidence you won’t be disappointed!
K**H
As good as OEM
I was cautious to move away from factory filters, however I think these run just as well if not better. I’ve had 0 problems with these filters. The only suggestion I could add is maybe ship the box sealed, or place the O rings in a separate bag so they don’t fall out of the box while shipping.
J**K
Look like the real thing and fit properly. Come in a non-descript cardboard box with a little white label that says Doc's Diesel and part numbers
C**S
I've heard a lot about Docs filters. They arrived quickly and fit well
A**R
Fantastic kit great quality fast shipping
R**M
Great price
G**H
Works great so far
Trustpilot
1 month ago
2 weeks ago