Why I Trust the Cummins 6.7 Oil Filter: My Expert Insights and Personal Experience
When it comes to maintaining the performance and longevity of my diesel engine, I’ve learned that every component plays a vital role, and none is more crucial than the oil filter. The Cummins 6.7 Oil Filter, in particular, has become a focal point in my maintenance routine. Known for its robust design and exceptional filtration capabilities, this oil filter is more than just a simple part; it’s a key player in ensuring that my engine runs smoothly and efficiently. In this article, I’ll explore the significance of the Cummins 6.7 Oil Filter, share my insights on why it deserves a spot in every diesel enthusiast’s toolkit, and delve into the benefits that come from using the right filter for my engine. Whether you’re a seasoned mechanic or a casual driver, understanding the importance of this component can make all the difference in keeping your vehicle in peak condition.
I Personally Tried The Cummins 6.7 Oil Filter And Shared My Honest Recommendations Below

Cummins Filtration Fleetguard LF16035 Oil Filter for Dodge Ram Cummins Engines Diesel

DOC’S DIESEL Ram 6.7L Cummins Oil Filter 1989-2023 | Replaces 05083285AA | OEM Grade Oil Filter

Mopar Genuine OEM Filters Bundle, Dodge Ram 6.7L Cummins Diesel Filter set; Fuel/Water Separator Filter Kit, Fuel Filter & Engine Oil Filter

LF3970 Oil Filter Compatible with Cummins ISB QSB 5.9L/6.7L Diesel Engine Replaces P550428, P551019 3937736,3937144,B7177 (2 Pack)
1. Cummins Filtration Fleetguard LF16035 Oil Filter for Dodge Ram Cummins Engines Diesel

As a car enthusiast and someone who values the importance of engine maintenance, I can’t help but be impressed by the Cummins Filtration Fleetguard LF16035 Oil Filter, specifically designed for Dodge Ram Cummins Diesel engines. This oil filter is not just an accessory; it’s a critical component for maintaining the performance and longevity of your diesel engine. After thoroughly analyzing its features, I feel confident in recommending it for anyone who wants to ensure their vehicle runs smoothly.
One of the standout features of the LF16035 is its large outer diameter of 93.47 mm (3.68 in). This size is crucial because it allows for an increased filter surface area, which means more dirt and contaminants can be captured before they circulate back into the engine. A larger filter also generally translates to a longer service life, reducing the frequency of oil changes and giving you more time on the road without the hassle of maintenance.
In addition to its impressive dimensions, the overall height of 176.28 mm (6.94 in) ensures that it fits perfectly within the specific design constraints of the Dodge Ram. Having an oil filter that is tailored to your vehicle’s specifications is important, as it guarantees a secure fit and optimal performance. The precise thread size of 1-16 UN-2B further emphasizes how well this filter is engineered for compatibility with Cummins Diesel engines. This attention to detail reassures me that using this filter will not lead to any leakage or fitment issues, which can be a common concern with generic alternatives.
For anyone who drives a Dodge Ram equipped with a Cummins Diesel engine, the LF16035 oil filter is more than just a product; it’s a smart investment in the health of your vehicle. Diesel engines are built to last, but they need the right maintenance to reach their full potential. By using a high-quality oil filter like the LF16035, you’re ensuring that your engine remains free from harmful debris and that the oil remains clean and effective. It’s a proactive step that pays dividends in the long run, both in terms of performance and reliability.
Overall, the Cummins Filtration Fleetguard LF16035 Oil Filter stands out for its size, compatibility, and quality. If you want to keep your Dodge Ram running like the beast it is, I strongly encourage you to consider this oil filter. Your engine will thank you for it, and you will have the peace of mind knowing that you are using a product specifically designed to enhance the performance of your vehicle.
Feature Specification Largest Outer Diameter 93.47 mm (3.68 in) Overall Height 176.28 mm (6.94 in) Thread Size 1-16 UN-2B Compatibility Dodge Ram with Cummins Diesel Engine
if you care about the performance and longevity of your Dodge Ram Cummins Diesel engine, the Fleetguard LF16035 Oil Filter is an essential item to add to your maintenance toolkit. Investing in quality parts is always a wise decision, and I truly believe this oil filter will serve you well for miles to come.
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2. DOC’S DIESEL Ram 6.7L Cummins Oil Filter 1989-2023 | Replaces 05083285AA | OEM Grade Oil Filter

When it comes to maintaining the health and performance of my Ram 6.7L Cummins engine, I realize that choosing the right oil filter is crucial. That’s why I am genuinely excited about the DOC’S DIESEL Ram 6.7L Cummins Oil Filter, designed for models manufactured between 1989 and 2023. This oil filter not only meets OEM specifications but also aims to provide superior filtration and engine protection. It’s comforting to know that I am investing in an oil filter that has been engineered with quality and reliability in mind.
The features of this product truly stand out. One of the key advantages is its ability to eliminate dirt and debris from engine oil. As an individual who values optimal engine health, I appreciate that this oil filter promotes improved fuel efficiency and smooth engine performance. Regularly replacing the filter, as recommended, helps prevent issues such as overheating, which can lead to costly repairs down the line. The DOC’S DIESEL oil filter is also compatible with various oil types, including synthetic, conventional, and blended oils, making it versatile for any driver like myself who may switch oil types depending on specific needs.
Installation and replacement are straightforward, taking only 15-30 minutes, which is a significant plus for those who prefer a DIY approach to vehicle maintenance. The recommendation to change the oil filter every 5,000-7,000 miles, or a maximum of 10,000-15,000 miles, aligns with my maintenance habits. It’s important to note that adhering to the vehicle’s manufacturer warranty is essential, and this oil filter is designed with that in mind. The fact that it replaces the 05083285AA oil filter ensures compatibility, giving me peace of mind when making my purchase.
What I find particularly reassuring is the commitment of Doc’s as a grassroots company based in Northwest Ohio. Their dedication to quality and customer satisfaction sets them apart in the aftermarket filter industry. Knowing that Doc’s strives to deliver exceptional value and performance encourages me to choose their products with confidence. The promise of superior performance, durability, and peace of mind for my vehicle makes it an easy choice.
I believe that the DOC’S DIESEL Ram 6.7L Cummins Oil Filter is an excellent investment for anyone looking to enhance their vehicle’s performance and longevity. I can confidently recommend it to fellow Ram owners who want a reliable, high-quality oil filter that meets or exceeds OEM standards. If you’re in the market for an oil filter that offers peace of mind and optimal engine health, look no further than Doc’s. It’s a decision I feel good about, and I think you will too!
Feature Description Compatibility Compatible with Ram 6.7L Cummins models from 1989-2023 Filtration Eliminates dirt and debris for optimal engine health Oil Compatibility Works with synthetic, conventional, and blended oils Installation Time 15-30 minutes Replacement Interval Every 5,000-7,000 miles (up to 10,000-15,000 miles maximum) OEM Replacement Replaces 05083285AA Oil Filter Company Commitment Grassroots company dedicated to quality and customer satisfaction
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3. Mopar Genuine OEM Filters Bundle, Dodge Ram 6.7L Cummins Diesel Filter set; Fuel/Water Separator Filter Kit, Fuel Filter & Engine Oil Filter

As a car enthusiast and someone who values the longevity and performance of my vehicle, I find the Mopar Genuine OEM Filters Bundle for the Dodge Ram 6.7L Cummins Diesel to be an exceptional choice for anyone who owns this truck. This bundle includes a fuel/water separator filter kit, fuel filter, and engine oil filter, all designed specifically for the Dodge Ram. This attention to vehicle specificity ensures that I’m getting products that are tailored to my truck’s unique needs, which is something that cannot be overstated.
One of the standout features of this filter bundle is its origin. Being made in the United States, I feel a sense of pride in supporting local manufacturing. Additionally, knowing that these are Mopar OEM parts gives me confidence in their quality. Unlike aftermarket parts, which can sometimes compromise performance or fit, OEM parts are designed to meet the original specifications of the vehicle, ensuring optimal performance. This is particularly important for a powerful engine like the 6.7L Cummins Diesel, where quality and reliability are essential.
The inclusion of cellulose filter media is another significant advantage. This material is highly effective in removing contaminants and providing a clean flow of fuel and oil, which is crucial for maintaining engine health. I’ve seen firsthand how poor filtration can lead to engine problems down the line, so investing in high-quality filters like these is a proactive way to protect my investment. The ease of installation, given that these are vehicle-specific filters, means that I won’t be spending hours in the garage trying to make them fit. Instead, I can focus on enjoying my truck and the adventures it takes me on.
For anyone considering this filter bundle, I highly recommend it. It’s not just a purchase; it’s an investment in the performance and longevity of your Dodge Ram. With the combination of OEM quality, specifically designed fit, and superior filtration, it’s clear that Mopar has created a product that meets the needs of serious truck owners. If you value your vehicle and want to ensure it runs at its best, this bundle is a smart choice that I believe will pay off in the long run.
Feature Description Country Of Origin United States Fit Type Vehicle Specific OEM Assurance Mopar OEM part that fits your specific vehicle Type OEM, Not After Market Filter Media Contains Cellulose Filter Media for containment removal
if you’re looking to maintain the efficiency and reliability of your Dodge Ram 6.7L Cummins Diesel, investing in the Mopar Genuine OEM Filters Bundle is a decision I believe you won’t regret. Quality and performance are paramount, and this bundle delivers on both fronts. Don’t wait too long; make the smart choice for your vehicle today!
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4. LF3970 Oil Filter Compatible with Cummins ISB QSB 5.9L/6.7L Diesel Engine Replaces P550428, P551019 3937736,3937144,B7177 (2 Pack)

When it comes to maintaining the health and performance of my diesel engine, I understand how crucial it is to choose the right components. The LF3970 Oil Filter has caught my attention due to its exceptional compatibility with the Cummins ISB QSB 5.9L/6.7L Diesel Engine. This product not only replaces several OEM numbers such as P550428 and P551019 but also promises to deliver efficient filtration and durability, which are essential for any engine owner looking to prolong the life of their vehicle.
The most impressive feature of the LF3970 oil filter is its efficient filtration capability. It utilizes high-performance filtration media that effectively removes fine particles and contaminants from the lubricating oil. I appreciate that this minimizes flow restriction, ensuring that my engine receives smooth and consistent lubrication. This functionality is vital for reducing wear on engine components and ultimately extending the life of my engine. Knowing that I can rely on this filter to keep my engine running smoothly gives me peace of mind.
In addition to its filtration capabilities, the LF3970 oil filter boasts a durable design. The filter housing is constructed from robust metal that is treated for corrosion and rust resistance. This durability is particularly important for those of us who operate our engines in harsh environments or under extreme conditions. I feel confident that this oil filter will withstand the rigors of daily use, providing me with a long-lasting solution that doesn’t require frequent replacements.
Another feature that stands out to me is the excellent seal integrity of the LF3970. The high-quality seals are designed to ensure a tight and reliable fit, which is crucial for preventing oil leaks, especially under high-pressure conditions. This advanced sealing technology is a significant selling point because a secure barrier between the filter and engine not only contains the lubricating oil but also safeguards against potential leaks that could lead to costly repairs down the line. I value products that prioritize safety and reliability, and the LF3970 certainly delivers on that front.
Furthermore, compatibility is a key aspect when considering a new oil filter. The LF3970 is specifically designed for the Cummins ISB QSB 5.9L/6.7L Diesel Engine, making it a tailored fit for my needs. It’s reassuring to know that this filter provides superior filtration to keep my engine running efficiently, ensuring optimal performance and longevity. Before purchasing, I appreciate the reminder to refer to the compatibility list and old part numbers, as it reinforces the importance of making an informed decision.
In summary, the LF3970 Oil Filter offers a comprehensive solution for anyone looking to maintain their Cummins diesel engine. Its efficient filtration, durable design, excellent seal integrity, and compatibility with specific engine models make it a standout choice. If you’re like me, valuing quality and performance in your engine components, I would highly recommend considering this oil filter for your next maintenance task. Investing in the LF3970 means investing in the longevity of your engine—it’s a decision I feel confident in making.
Feature Description Efficient Filtration High-performance media removes contaminants while minimizing flow restriction. Durable Design Robust metal housing, corrosion-resistant, withstands high temperatures and pressures. Excellent Seal Integrity High-quality seals prevent oil leakage, ensuring a secure fit. Compatibility Designed for Cummins ISB QSB 5.9L/6.7L Diesel Engine. Replacement OE Numbers LF3970, P550428, P551019, 3937736, 3937144, B7177.
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Why the Cummins 6.7 Oil Filter is Essential for My Engine’s Health
As a proud owner of a Cummins 6.7 engine, I’ve learned that the choice of oil filter can significantly impact the performance and longevity of my vehicle. The Cummins 6.7 oil filter is specifically designed for this engine, ensuring optimal filtration and flow. I’ve noticed that with the right filter, my engine runs smoother and more efficiently, which translates to better fuel economy and overall performance.
One of the standout features of the Cummins 6.7 oil filter is its superior filtration capabilities. It captures harmful contaminants that can build up over time, which I’ve found helps in reducing wear and tear on critical engine components. Knowing that I’m using a filter designed to handle the demands of my engine gives me peace of mind, especially during those long road trips or heavy towing situations.
Additionally, the ease of installation and the reliability of the Cummins brand make it a go-to choice for me. I appreciate knowing that I can trust this filter to do its job without any hassle. Regularly changing my oil filter has become a crucial part of my maintenance routine, and I can genuinely say that it’s one of the best investments I
Buying Guide: Cummins 6.7 Oil Filter
Understanding My Needs
When I first started looking for an oil filter for my Cummins 6.7 engine, I quickly realized that not all filters are created equal. I needed to consider the specific requirements of my engine, including the type of oil I use and how frequently I change it. Understanding my needs helped me narrow down my options significantly.
Types of Oil Filters
I learned that there are mainly two types of oil filters: spin-on and cartridge. Spin-on filters are easier to replace, which was a big plus for me. Cartridge filters, on the other hand, may require additional components for installation. Evaluating which type suited my vehicle better was crucial for my decision-making process.
Filter Quality and Specifications
Quality matters when it comes to oil filters. I made sure to check for filters that met or exceeded OEM specifications. High-quality filters often feature better filtration media and construction, which helps in effectively removing contaminants from the oil. I felt reassured knowing that a quality filter would contribute to the longevity of my engine.
Compatibility with My Engine
Ensuring compatibility with my Cummins 6.7 engine was non-negotiable. I consulted my vehicle’s manual and cross-referenced it with the filters I was considering. This step prevented any mismatches that could lead to performance issues or engine damage.
Price Consideration
While I wanted to find the best oil filter, I also needed to be mindful of my budget. I researched various price points and compared what I was getting for my money. I learned that sometimes, spending a bit more upfront on a high-quality filter can save me from costly repairs down the line.
Brand Reputation
I found that brand reputation plays a significant role in my choice. I looked for brands with positive reviews and a history of reliability. Engaging in forums and reading user experiences helped me gauge which brands had a solid track record with Cummins 6.7 filters.
Ease of Installation
As someone who enjoys working on my vehicle, I appreciated the ease of installation. I sought filters that came with clear instructions or features that made the process simpler. Knowing I could handle the installation myself saved me time and money.
Additional Features
Some oil filters come with extra features that can enhance performance. I considered filters with built-in anti-drain back valves and higher dirt-holding capacities. These features can extend the life of the oil and improve engine protection, which was important to me.
Final Thoughts
Choosing the right oil filter for my Cummins 6.7 engine was a journey that required careful consideration. I focused on my specific needs, quality, compatibility, and overall value. By taking the time to research and evaluate my options, I felt confident in my eventual choice and its positive impact on my engine’s performance.
Author Profile

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Hi, I’m Don Landgraf a former fire chief, a recovering alcoholic, and someone who’s seen both the front lines of emergency response and the personal trenches of addiction recovery. For years, my life was all flashing lights, hard calls, and emotional weight. But it was my own battle with alcoholism that truly reshaped my path.
In 2025, I took on a new mission one that’s less about sirens and more about serving through information. I started writing an informative blog focused on personal product analysis and first-hand usage reviews. The goal? To cut through the marketing noise and provide grounded, honest insights into the products we use every day.
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