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Picking the right Ram 3500 oil filter matters because filtration quality and proper fit affect engine wear, oil pressure, and service intervals. Whether you tow frequently or use the truck for daily heavy-duty work, a correct filter helps manage contaminants and maintain consistent oil flow. This guide covers the top shortlisted oil filters for the Ram 3500, explaining why each made the list and what to expect in terms of filtration, durability, and installation. We evaluated factors such as micron ratings, media type, and sealing design to help you decide which option suits your driving and maintenance habits.
Top Picks at a Glance
| Best Reviewed A top-rated pick with lots of positive feedback | Cummins Filtration Fleetguard LF16035 Oil Filter for Dodge Ram Cummins Diesel |  |
| Most Popular A crowd favorite that many people choose with confidence | Marsram 6.7L Cummins Fuel and Oil Filter Kit for 2013–2018 Ram 2500/3500/4500/5500 |  |
| Best Quality Built to a higher standard if you want something more solid | RARAYC 6.7L Cummins Fuel and Filter Kit (2019–2024 Ram Turbo Diesel) |  |
| Best Budget The cheapest option that still gets the job done reliably | Arbriaty LF16035 Oil Filter (fits 1994–2018 Dodge Ram 2500/3500 Cummins) |  |
| Most Sold A high-volume bestseller chosen again and again | Mopar Engine Oil Filter 68677810AA for 2025 Ram |  |
| Best Value for Money The sweet spot between price and what you get | CARMOCAR 6.7L Cummins Fuel Filter, Water Separator and Oil Filter Set (2013–2018 Dodge Ram) |  |
| Best Overall The best all-around choice for most situations | KOROP 6.7L Cummins Fuel Filter Water Separator and Oil Filter Set for 2013–2018 Ram 2500/3500/4500/5500 |  |
1. Cummins Filtration Fleetguard LF16035 Oil Filter for Dodge Ram Cummins Diesel
| Thread Size | 1-16 UN-2B |
|---|---|
| Outside Diameter | 93.47 Millimeters |
| Product Grade | Performance Part |
| Vehicle Service Type | Truck |
The Fleetguard LF16035 is a vehicle-specific oil filter designed for Dodge Ram trucks with Cummins diesel engines, used as a direct replacement during routine oil service. It uses upgraded filter media compared with many stock units, which increases contaminant-holding capacity and helps keep oil cleaner between changes. Installation is straightforward on the Ram 3500 where this fitment applies, and the machined exterior and correct thread size make it a dependable, leak-free swap. The practical benefit is stronger filtration and peace of mind for owners who prioritize engine longevity and want a factory-quality replacement. Limitations are minimal for correct-fit vehicles but include the need to buy the exact fitment for the Ram 3500 Cummins and occasional price variability compared with cheaper aftermarket spin-ons. If you plan extended oil-change intervals, verify oil and filter change schedules to ensure the higher-capacity media matches your maintenance plan.
Best for: Reliability-focused Ram 3500 owners who prioritize protecting their Cummins diesel and prefer factory-quality replacement parts for routine maintenance.
Less Ideal for: Buyers looking for the cheapest possible disposable filter or those needing a universal or non-Cummins fitment should consider other options.
- Vehicle-specific fit for Dodge Ram Cummins diesel engines ensures proper thread and sealing
- Upgraded filter media offers higher contaminant capacity than standard stock filters
- Machined exterior and factory-quality construction reduce risk of leaks and fitment issues
- Widely used by owners of Ram diesels, indicating real-world reliability
- Price can vary and sometimes runs higher than basic aftermarket alternatives
- Designed for specific Cummins Ram fitment so it is not a universal filter
Verdict Choose the Fleetguard LF16035 when you want a factory-quality, higher-capacity oil filter for your Ram 3500 Cummins to maximize engine protection.
2. Marsram 6.7L Cummins Fuel and Oil Filter Kit for 2013–2018 Ram 2500/3500/4500/5500
| Vehicle fit | 2013–2018 Ram 2500/3500/4500/5500 6.7L Cummins |
|---|---|
| Package contents | 1 x 68197867AA, 1 x 68157291AA, 1 x 5083285AA, 2 x O-rings |
| Style | Spin-On |
| Product grade | Replacement Part |
This Marsram kit bundles the two fuel filters and the spin-on oil filter needed for routine service on 6.7L Cummins Ram trucks. It is intended for straightforward replacement during scheduled maintenance and uses multi-layer filtration media to remove contaminants from fuel and oil while maintaining flow. The filters are supplied with separately packaged O-rings and a metal housing for the spin-on element, which makes installation similar to a factory replacement and keeps downtime low for owners who prefer a quick swap. Most buyers report correct fit and solid value, though a few noted quality control issues such as poorly seated internal components or an incorrectly sized O-ring for certain water separators. Expect reliable filtration for everyday driving and towing when parts seat properly, but inspect O-rings and the filter assembly at install and be prepared to swap the O-ring if it does not match your vehicle's water-separator seal.
Best for: Buyers who prioritize convenience and a fast, complete service solution for 6.7L Cummins trucks and want a ready kit that reduces parts hunting and shop time.
Less Ideal for: Owners looking for dealer-grade parts longevity or those who require guaranteed perfect OEM fitment for specialty water-separator setups should consider factory-sourced alternatives or check fit before installation.
- Vehicle-specific fit for 2013–2018 Ram 6.7L Cummins engines for straightforward replacement
- Includes both fuel filters, oil filter, and O-rings for a single service interval
- Multi-layer filtration media aimed at high flow and high contaminant capacity
- Metal spin-on housing and heat-resistant O-rings improve sealing and durability
- Some reported quality-control problems such as glued or poorly assembled internal parts on a minority of units
- O-ring sizing may not match every water-separator configuration, requiring verification at install
Verdict A convenient all-in-one filter kit for 6.7L Cummins Ram trucks that saves time and parts-sourcing, but check O-rings and assembly at install for the best result.
3. RARAYC 6.7L Cummins Fuel and Filter Kit (2019–2024 Ram Turbo Diesel)
| Fitment | 2019–2024 Ram 2500/3500/4500/5500 6.7L Turbo Diesel |
|---|---|
| Includes | Fuel filter, fuel/water separator, oil filter, engine air filter, cabin air filter |
| Filter rating | 4 micron (listed) |
This RARAYC kit bundles the fuel filter and water separator plus oil, engine air, and cabin air filters to cover a full service on 6.7L Cummins-equipped Ram trucks. It is designed for do-it-yourself maintenance or quick shop swaps and uses multi-layer filter media that the listing says captures water and contaminants down to about four microns. In practice the kit simplifies a scheduled service by providing matched replacement elements so you change all major consumables at once. Buyers report straightforward installation and reliable fit for the fuel filter and separator, and the included oil and air filters make it convenient to refresh the whole engine intake and fuel system in one visit. The cabin air element may require slight trimming or gentle persuasion to seat perfectly. If you prioritize maintaining fuel system cleanliness and consistent engine performance, this kit delivers solid filtration at a value compared with dealer parts, though it is not promoted as a direct factory-brand part and some fit tolerances can be less refined than factory-quality components.
Best for: Performance-oriented owners who prioritize engine reliability and fuel-system cleanliness and want a single kit to perform comprehensive maintenance on a 6.7L Cummins Ram.
Less Ideal for: Buyers seeking guaranteed factory-brand parts or those who prefer to replace only a single filter at a time rather than a full kit should consider alternatives.
- Complete set covers fuel filter, fuel/water separator, oil filter, engine air filter, and cabin air filter for a full service.
- Filter media claims multi-layer construction with high water separation and 4 micron filtration for improved fuel cleanliness.
- Convenient for DIY or shop service since the kit matches commonly replaced elements and reduces parts sourcing time.
- Several user reports of easy installation and correct fit for primary fuel components.
- Not marketed as factory-brand; fit and finish for some secondary pieces like the cabin air filter can be slightly imperfect.
- Manufacturer claims and micron ratings are from the listing and are not independently verified in this review.
Verdict A practical, performance-minded kit that refreshes all major filters on 6.7L Cummins Rams for improved fuel cleanliness and convenience, with minor fitments differences versus factory parts.
4. Arbriaty LF16035 Oil Filter (fits 1994–2018 Dodge Ram 2500/3500 Cummins)
| Brand | Arbriaty |
|---|---|
| Material | Aluminum |
| Vehicle Service Type | Compatible with 1994-2018 Dodge Ram 2500/3500 Cummins engines |
| OEM Part Number | LF16035 |
The Arbriaty LF16035 is a no-frills replacement oil filter sized to fit Cummins-equipped Dodge Ram 2500/3500 trucks. It installs like a factory-style spin-on filter and uses metal housing and paper filtration media to capture fine particles while maintaining oil flow. Typical use is routine oil change service on Ram 3500 trucks where owners need a low-cost alternative to dealer filters. The housing and sealing design aim to resist corrosion and prevent leaks under normal operating pressures, and several user reports indicate a close fit and straightforward thread engagement. Limitations include its status as an aftermarket, budget option rather than a branded factory part and mixed feedback on long-term durability from a minority of buyers. For truck owners doing regular maintenance or fleet-style service intervals, it offers value and acceptable performance, but those seeking guaranteed factory-brand longevity may prefer a branded or OEM-sourced filter.
Best for: Budget-conscious owners who prioritize low per-change cost and straightforward, reliable fitment for routine oil maintenance on Ram 3500 trucks.
Less Ideal for: Owners seeking guaranteed manufacturer-branded longevity or who only use OEM-sourced parts for heavy-duty or extended-interval service should consider a factory-quality alternative.
- Fits 1994–2018 Dodge Ram 2500/3500 Cummins engines for direct replacement
- Metal housing with anti-corrosion treatment for durability in harsh conditions
- Designed sealing system to reduce risk of oil leaks under pressure
- Lower-cost alternative to factory-brand filters for routine maintenance
- Aftermarket budget unit with some reports questioning long-term durability
- Not a branded factory replacement which may concern owners wanting exact OEM match
Verdict A cost-effective, vehicle-specific replacement that gives Ram 3500 owners a budget-friendly option with factory-style fit but not a factory-branded longevity guarantee.
5. Mopar Engine Oil Filter 68677810AA for 2025 Ram
| Brand | Mopar |
|---|---|
| Material | Paper, Steel |
| Vehicle Service Type | Truck |
| Automotive Fit Type | Vehicle Specific Fit |
This Mopar 68677810AA oil filter is a factory replacement engineered to fit 2025 Ram trucks with the Cummins diesel. It installs like a standard spin-on filter and is used during routine oil changes to trap contaminants and protect the engine between service intervals. The unit’s paper media and steel canister reflect typical factory construction, and buyer reports note correct fitment and sealed OEM packaging, which simplifies maintenance and reduces fitment risk. Practical benefits include straightforward installation, predictable filtration that matches factory expectations, and compatibility assurance for owners who prefer parts made to factory standards. Limitations are that it is a single-use replacement part with no performance claims beyond factory specification and may cost more than budget aftermarket options. This filter is best when you want a direct, factory-style replacement that avoids fitment guesses and maintains the manufacturer’s intended filtration characteristics.
Best for: Risk-averse mainstream buyers who prioritize using factory-quality replacement parts and want a plug-and-play filter that preserves factory servicing expectations.
Less Ideal for: Buyers seeking performance upgrades, extended-life filters, or the lowest-cost disposable option should consider high-performance or budget aftermarket alternatives.
- Factory-quality fit for 2025 Ram Cummins diesel, reducing installation issues
- Standard paper media and steel canister construction consistent with OEM performance
- Sealed, vehicle-specific packaging that simplifies identification at service time
- No enhanced filtration or performance features beyond factory specification
- Typically priced higher than budget aftermarket filters
Verdict Choose this Mopar filter if you want a direct factory-quality replacement for a 2025 Ram Cummins diesel and prefer predictable, OEM-style performance.
6. CARMOCAR 6.7L Cummins Fuel Filter, Water Separator and Oil Filter Set (2013–2018 Dodge Ram)
| Vehicle Service Type | Dodge Ram 6.7L Diesel (2013-2018) |
|---|---|
| Includes | Fuel filter, water separator, oil filter |
| Material | Synthetic fiber filter paper |
| Manufacturer | CARMOCAR |
This CARMOCAR kit bundles the fuel filter, water separator, and oil filter needed for routine service on 6.7L Cummins Ram trucks. It is designed as a direct vehicle-specific replacement and is typically used during scheduled maintenance to remove particulate and separate water from diesel before it reaches the injection system, while the oil filter handles engine oil filtration. The filters use multilayer pleated filter media to increase dirt-holding capacity and reduce flow restriction, which helps protect injectors and the fuel pump and can support stable engine performance between changes. Buyers will appreciate the complete set for a single service visit and the practical packaging that matches factory fit points. Limitations are that this is an aftermarket replacement rather than factory-branded hardware and long-term durability can vary compared with higher-priced branded options, so careful inspection at installation is recommended.
Best for: Practical optimizers who prioritize getting a full set of replacement filters that deliver solid filtration performance for scheduled maintenance without paying dealer prices.
Less Ideal for: Buyers who want only factory-branded parts with dealer-backed long-term warranties or those who prefer premium filtration from specialty brands.
- Complete three-piece kit (fuel filter, water separator, oil filter) for one service interval
- Vehicle-specific fit for 6.7L Cummins Dodge Ram 2013–2018 which simplifies installation
- Multi-layer pleated filter media for higher dirt-holding capacity and lower flow restriction
- Aftermarket part rather than factory-branded component so material finish may differ from dealer parts
- Manufacturer supplies a one-year service/support window which is shorter than some extended warranties
Verdict A cost-effective, vehicle-specific filter kit that covers fuel and oil service needs for 6.7L Cummins Rams while keeping spend low compared with dealer parts.
7. KOROP 6.7L Cummins Fuel Filter Water Separator and Oil Filter Set for 2013–2018 Ram 2500/3500/4500/5500
| Fitment | 2013-2018 Ram 2500/3500/4500/5500 6.7L Cummins |
|---|---|
| Includes | Fuel filter water separator and oil filter set |
| Manufacturer | KOROP |
| Product Grade | Replacement Part |
This KOROP filter kit bundles the in-line fuel filter water separator and the spin-on oil filter used on 6.7L Cummins Ram trucks, making routine service straightforward for DIYers and shops. Installation is the same as a factory replacement: swap the fuel water separator under the hood and replace the oil filter during an oil change. The listing notes factory part numbers it replaces and the filters are packaged individually with seals included, which helps prevent cross-contamination and speeds installation. Buyers report solid fit and filtration media density comparable to dealer parts, so the kit can protect injectors and prolong engine life when changed on schedule. Some customers have reported issues with a thin fuel-filter O-ring or premature media collapse on a few units, so it is sensible to inspect seals and prime the fuel system after installation. For owners who want a lower-cost, vehicle-specific replacement that mirrors factory service, this kit covers the main maintenance points for the Ram 3500 Cummins diesel, but cautious installers should verify seal fit before final assembly.
Best for: Balanced owners who want a complete, vehicle-specific maintenance kit that mimics factory service while saving money compared with dealer parts and prefer doing regular scheduled maintenance themselves.
Less Ideal for: Owners who prioritize guaranteed dealer-sourced parts or who need fleet-grade, fully verified aftermarket filtration for high-hour heavy-duty duty cycles should consider alternatives with stronger warranty-backed assurances.
- Vehicle-specific kit that replaces the factory fuel-water separator and oil filter for 6.7L Cummins Rams
- Individual packaging and included seals simplify installation and reduce contamination risk
- Filter media reported to be dense and effective, providing protection similar to dealer parts
- Covers both fuel and oil filtration needs in one purchase for routine maintenance
- Some users reported a thin or mismatched fuel-filter O-ring that caused leaks
- A minority of reviews describe fuel starvation or media collapse on early units, indicating occasional quality variance
Verdict A convenient, lower-cost vehicle-specific filter kit that matches factory fit and function most of the time but requires a quick seal check during installation.
Choosing the Right Ram 3500 Oil Filter: Key Factors to Consider
Filtration Efficiency and Micron Rating
Filtration efficiency determines how well an oil filter captures particles that cause engine wear. Look for published micron ratings and beta ratios when available, because lower micron capture and higher beta ratios indicate better removal of fine debris.
High-efficiency filters tend to prolong engine life by reducing abrasive particles circulating in the oil. However, ultra-fine media can restrict flow if not paired with appropriate media design, so balance efficiency with flow capacity for heavy-duty operating conditions.
Media Type and Construction
Oil filter media can be cellulose, synthetic, or a blend, and each offers tradeoffs in contaminant capacity and longevity. Synthetic media often provides higher contaminant-holding capacity and more consistent flow over extended intervals, while cellulose media is typically less expensive but may clog sooner under severe use.
Also consider media pleat count, support layers, and end-cap bonding quality. Robust internal construction prevents collapse or bypass under high oil pressure, which is important for towing or towing-adjacent loads common with a Ram 3500.
Seal and Gasket Design
A proper seal prevents oil leaks and maintains pressure. Check that the gasket material is compatible with engine oil and temperature ranges the truck will experience. Larger or thicker gaskets can help maintain sealing under vibration and thermal cycling.
Gasket fit and seating also influence ease of installation and removal. A well-designed gasket reduces the chance of gasket extrusion or leaks, which can lead to low oil pressure or mess during filter changes.
Flow Capacity and Bypass Valve Performance
Filters must allow sufficient oil flow at various engine speeds and temperatures. A bypass valve prevents oil starvation if the media becomes clogged or during cold starts when oil is viscous. Evaluate the bypass cracking pressure and design to ensure it opens only when necessary.
Poor bypass behavior can either allow unfiltered oil through too often or restrict flow and starve the engine. For heavy-duty usage, choose filters with proven flow capacity and reliable bypass performance.
Thread Size and Fitment Compatibility
Physical compatibility with the Ram 3500 mounting is essential to avoid installation issues or cross-threading. Verify thread pitch, overall canister diameter, and gasket seating dimensions against factory specifications to ensure a correct fit.
Correct fitment reduces the chance of leaks and ensures the filter secures tightly without damaging the mounting stud or oil passage. Filters that match OEM dimensions will simplify installation and minimize fitment-related problems.
Durability and Service Interval Suitability
Consider how long you plan to go between oil changes and whether you use conventional or synthetic oil. Filters designed for extended service intervals typically use higher-quality media and stronger internal supports to withstand longer exposure to contaminants and pressure cycles.
Durability also covers resistance to collapse, gasket aging, and canister corrosion for spin-on styles. Match the filter's intended service interval to your maintenance routine and operating conditions to avoid premature failure.
FAQ
How often should I change the oil filter on a Ram 3500?
The interval depends on driving conditions, oil type, and manufacturer recommendations. Under normal highway use with synthetic oil you can often follow longer intervals, while heavy towing or dusty conditions usually warrant more frequent changes. Check your vehicle manual and monitor oil condition to set an appropriate schedule.
Can I use a synthetic media oil filter in my Ram 3500?
Synthetic media filters are commonly compatible and offer higher contaminant-holding capacity and more consistent flow. They are often a good choice for extended intervals or severe use, though you should confirm physical fitment and any manufacturer guidance before switching media types.
What causes oil filter gasket leaks and how can I prevent them?
Leaks often stem from improper installation, damaged gaskets, or incorrect gasket seating surfaces. To prevent leaks, clean the mounting surface, lightly oil the gasket before installation if recommended, and torque the filter to the specified range. Inspect the old gasket to ensure it did not remain stuck to the mounting flange.
Is a spin-on oil filter better than a cartridge style for the Ram 3500?
Both formats have pros and cons. Spin-on filters are convenient and self-contained, while cartridge systems can reduce waste and allow easier inspection of the housing. The best option depends on your truck's design and your maintenance preferences. Ensure any chosen format fits the vehicle and meets flow and filtration needs.
How do I know the correct oil filter size for my Ram 3500?
Refer to the vehicle specifications for thread pitch, diameter, and gasket dimensions, or consult a parts catalog that lists fitment by year and engine. A proper size ensures correct sealing and clearances around mounting areas. Avoid guessing by physical comparison alone.
How We Chose the Best Ram 3500 Oil Filter
We focused on filters that meet the specific physical and performance requirements of the Ram 3500 platform. Primary evaluation criteria included filtration efficiency (micron ratings and contaminant capture), media construction (cellulose, synthetic, or blended media), and structural durability under extended service and towing loads. Fitment and sealing design were checked to ensure reliable threads, gaskets, and pressure relief compatibility for the vehicle. We also considered flow capacity and bypass valve performance to maintain oil pressure during cold starts and high-load operation. We excluded filters lacking documented specifications or those without standard compatibility data for the Ram 3500. Filters were filtered out if they used ambiguous media descriptions, had known sealing issues, or lacked clear construction details. The final picks prioritize documented filtration performance, robust construction, and consistent sealing and flow characteristics relevant to heavy-duty use.
Our full evaluation process is outlined in our review methodology.
Conclusion
Prioritize filtration efficiency, reliable sealing, and correct physical fit when choosing a Ram 3500 oil filter. Balance media type and construction with the service interval and operating stress you expect, such as frequent towing or extended idling. Keep in mind tradeoffs between maximum filtration and flow capacity, and match bypass and durability characteristics to your maintenance plan. Choosing a filter that aligns with these criteria will help preserve engine health and maintain consistent oil pressure under heavy-duty use.
