For truck owners across the USA, the 6.7 Cummins diesel engine is known for its strength, towing power, and reliability. But to keep it running at its best, you need the right 6.7 Cummins oil filter. A 6.7 Cummins oil filter isn’t just a small part — it’s the line of defense against engine wear. It traps debris, carbon, and contaminants that can damage internal components.
Using a premium 6.7 Cummins oil filter improves oil flow, ensures consistent pressure, and extends engine life. With many options available in 2025, selecting a high-quality filter can make the difference between a smooth drive and costly repairs.
What Makes a Great Oil Filter for the 6.7 Cummins?
When choosing an 6.7 cummins oil filter for your Ram 2500 or 3500 Cummins diesel, look for these factors:
- Filtration efficiency: Captures particles as small as 10–20 microns.
- Durability: Withstands high temperatures and long oil change intervals.
- OEM compatibility: Designed to meet Cummins or Mopar factory standards.
- Flow rate: Maintains steady oil pressure even in cold starts or heavy towing.
These qualities ensure your fuel filter performs well under U.S. driving conditions — from city traffic to off-road hauling.
Top 5 6.7 Cummins Oil Filters for 2025
1. Mopar MO-339 Oil Filter
The Mopar MO-339 6.7 Cummins oil filter is the official OEM choice for most 6.7 Cummins engines. It’s engineered specifically for Ram 2500 and 3500 trucks, guaranteeing a perfect fit and top performance.
- Filtration efficiency: 99% at 25 microns.
- Key advantage: Designed by the same team that builds the Cummins engine.
- Why it’s great for U.S. drivers: Provides reliable filtration for long-distance towing and highway use.
2. Fleetguard LF16035 Oil Filter
Fleetguard, part of the Cummins Filtration brand, is another trusted name in diesel performance. The LF16035 features Stratapore multi-layer media for advanced filtration.
- Best for: Heavy-duty commercial use.
- Durability: Withstands high-pressure oil systems.
- Added benefit: Backed by Cummins engineering, making it a top-tier OEM alternative.
3. WIX XP 57620XP Oil Filter
For truck owners who prefer extended oil change intervals, the WIX XP series is a strong choice. It’s designed for synthetic oil and high-load applications.
- Feature: Synthetic media captures more contaminants without restricting flow.
- Recommended for: Long-distance U.S. haulers and heavy towing in warm climates.
- Benefit: Reduces the risk of oil starvation during extended use.
4. Baldwin B5134 Oil Filter
Baldwin filters are known for rugged build quality. The B5134 model fits 6.7 Cummins engines and features a strong canister design that resists collapse under pressure.
- Best use: Off-road or construction trucks.
- Highlight: Excellent balance of cost and durability.
- Why U.S. drivers love it: Great for rough terrain and dusty conditions.
5. Royal Purple 30-2880 Oil Filter
If you’re chasing performance and efficiency, the Royal Purple 30-2880 delivers premium protection.
- Feature: 100% synthetic micro-glass media for ultra-clean oil.
- Advantage: Designed for high-performance diesel engines.
- Ideal for: U.S. truck owners using premium synthetic oils or performance upgrades.
How Often Should You Change the Oil Filter on a 6.7 Cummins?
Most experts recommend replacing the 6.7 Cummins oil filter every 7,500 to 10,000 miles, depending on driving conditions and oil type. For trucks frequently used for towing, idling, or off-road driving, consider changing the 6.7 Cummins oil filter more often. Always follow the Ram owner’s manual for the correct service interval.
Can Premium Filters Improve Fuel Efficiency?
Yes. Clean oil ensures lower friction between moving parts, helping the 6.7 Cummins oil filter engine run smoother and more efficiently. A clogged or low-quality 6.7 Cummins oil filter can reduce oil flow, increase engine strain, and lower fuel economy — especially noticeable in long-haul U.S. driving.
Are OEM Filters Better Than Aftermarket?
OEM filters like Mopar MO-339 are built to meet Cummins factory standards. They offer guaranteed compatibility and consistent quality. However, aftermarket options like Fleetguard or Royal Purple can outperform OEMs in specific cases, such as synthetic oil use or extended drain intervals.
Final Thoughts
Choosing the best 6.7 Cummins oil filter in 2025 means balancing OEM reliability with modern filtration technology. Whether you’re towing heavy loads through Texas, cruising the highways of California, or hauling in cold Midwest winters, investing in a high-quality oil filter protects your engine and enhances performance.
Each of the five 6.7 Cummins oil filters above delivers exceptional results for Ram 2500 and 3500 owners, ensuring long-lasting engine health and peace of mind on every drive.
FAQs
- What oil filter does a 2021 Ram 2500 6.7 Cummins use?
The OEM Mopar MO-339 or Fleetguard LF16035 are the best fits for most 2021 Ram 2500 models. - Can I use synthetic oil with any 6.7 Cummins oil filter?
Yes, but for the best results, use filters like WIX XP or Royal Purple designed for synthetic oil. - How do I know if my oil filter is clogged?
Signs include low oil pressure, dirty oil, or engine noise during startup. Always replace if unsure. - Are aftermarket filters safe for Cummins engines?
Yes, as long as they meet or exceed OEM specifications for pressure and filtration rating. - Where can I buy genuine 6.7 Cummins oil filters in the USA?
You can find them at authorized Mopar retailers, Cummins dealers, or online stores like Mopar Truck Filters for authentic, high-performance options.
