Note: This article contains affiliate links. If you click on these links and make a purchase, I may earn a small commission at no extra cost to you. This helps support my research and content. Read my full affiliate disclosure here.
If you drive a Ram 3500 Diesel, the oil filter you choose has a direct impact on engine longevity, oil cleanliness, and service intervals. Diesel engines generate more soot and contaminant load than gasoline engines, so picking a filter with the right capacity and flow characteristics helps maintain oil pressure and protect critical components under heavy load.This guide covers our six shortlisted options for Ram 3500 Diesel oil filters and explains how we evaluated each choice. You will get clear guidance on filtration performance, durability, serviceability, and compatibility with diesel maintenance intervals to help you make a confident selection.
Looking for other parts? See all Ram 3500 parts & accessories.
Top Picks at a Glance
| Best Overall The best all-around choice for most situations | Wix Racing Spin-On Oil Filter 51607 |  |
| Best Quality Built to a higher standard if you want something more solid | Doc's Diesel D5335 Premium Oil Filter (Replaces 05083285AA) |  |
| Best Value The sweet spot between price and what you get | KOROP 6.7L Cummins Fuel Water Separator and Oil Filter Kit (2013–2018 Dodge Ram 2500–5500) |  |
| Best Budget The cheapest option that still gets the job done reliably | KOROP 6.7L Cummins Replacement Oil Filter with Plug Tool Kit |  |
| Highest Rated A top-rated pick with lots of positive feedback | Cummins Filtration Fleetguard LF16035 Oil Filter |  |
| Most Popular A crowd favorite that many people choose with confidence | Mopar Premium Oil Filter (Part 5083285AA) |  |
1. Wix Racing Spin-On Oil Filter 51607
| Thread Size | M16 x 1.5 |
|---|---|
| Product Grade | Performance Part |
| Compatible with Vehicle Type | Car, Truck |
| Included Components | Spin-On Oil Filter |
The Wix Racing 51607 is a spin-on oil filter intended as a direct replacement for specific diesel and heavy-duty applications. It installs like a standard screw-on filter and is built as a performance-grade paper media unit aimed at trapping contaminants while allowing reliable oil flow under load. Notable features from the listing include a vehicle-specific fit designation and M16 x 1.5 threaded connection, which makes installation straightforward where that thread is required. In practice this filter suits routine oil changes and hard-working engines that demand dependable filtration without complex servicing. The filter’s paper media provides effective particle capture, but buyers looking for extended service intervals or synthetic-media performance may prefer alternatives. Construction appears standard for spin-on types, so expect typical lifespan tied to oil-change intervals rather than markedly extended capacity. Overall this is a practical, no-nonsense replacement filter for applications that match its thread and part interchange numbers.
Best for: Buyers who want a straightforward, reliable replacement filter that installs easily and offers solid everyday filtration for diesel workhorse engines.
Less Ideal for: Drivers seeking longer service intervals or the highest-efficiency synthetic filtration for extended oil-change schedules should consider premium alternatives.
- Performance-grade paper media for reliable particle capture
- Spin-on design with M16 x 1.5 thread for straightforward installation
- Vehicle-specific fit and part interchange list simplify compatibility checks
- From a reputable filter brand with long industry experience
- Paper filter media may not match the extended life or fine-efficiency of some synthetic or high-end designs
Verdict: A dependable, easy-to-install performance-grade spin-on filter for owners who want straightforward, factory-style filtration for heavy-duty diesel service.
2. Doc's Diesel D5335 Premium Oil Filter (Replaces 05083285AA)
| Compatible with Vehicle Type | Ram 6.7L Cummins |
|---|---|
| Part Interchange Info | Replaces 05083285AA |
| Thread Size | 1/2-13 NC |
| Material Type | Synthetic Fibers |
The Doc's Diesel D5335 is a replacement spin-on oil filter built for Ram Cummins diesel engines and intended for regular service on 2500–5500 trucks. It uses high-flow synthetic fiber media and a heavy-duty metal housing to capture contaminants like dirt and metal particles while maintaining flow for performance driving and towing. The listing cites third-party testing at 25 micron and 99% efficiency, which indicates fine filtration without severely restricting oil supply for high-flow diesel engines. Installation is the same as a factory spin-on filter and the unit is compatible with synthetic, conventional, and blended oils. Practical benefits include robust construction for heavy-duty service, broad interchange with common part numbers, and a designed fit for the 6.7L/5.9L Cummins range. Limitations are that longevity claims depend on your oil type and operating conditions and the recommended change intervals still follow standard service ranges rather than extended-interval guarantees.
Best for: Buyers who prioritize engine protection under heavy loads and performance use and want a robust, well-filtering replacement tuned for Ram Cummins trucks.
Less Ideal for: Drivers seeking ultra-long service intervals or factory-backed extended-life filters should consider alternatives with validated extended-interval ratings.
- High-flow synthetic media for effective particle capture with maintained oil flow
- Heavy-duty metal housing suited to frequent towing and heavy use
- Third-party tested 25 micron filtration at 99% efficiency reported
- Vehicle-specific fit and cross-reference to common OEM part numbers for easy replacement
- No explicit extended-life interval beyond standard manufacturer service recommendations
Verdict: Choose this Doc's Diesel filter if you want a heavy-duty, high-flow synthetic replacement that prioritizes filtration and durability for Ram Cummins diesel workhorses.
3. KOROP 6.7L Cummins Fuel Water Separator and Oil Filter Kit (2013–2018 Dodge Ram 2500–5500)
| Fitment | 2013-2018 Ram 2500, 3500, 4500, 5500 6.7L Turbo Diesel |
|---|---|
| Product Grade | Replacement Part |
| Outer Material | Metal |
| Manufacturer | KOROP AUTO PARTS |
This KOROP kit combines the fuel filter water separator and oil filter needed for routine maintenance on 6.7L Cummins Ram 2500–5500 trucks from 2013 through 2018. It installs like a factory-style replacement and is intended to remove water and particulate from diesel fuel while providing engine oil filtration during service intervals. The listing emphasizes durable metal construction and claims to meet or exceed factory-quality standards, which suggests a focus on long service life rather than cutting corners on materials. In practice the kit simplifies servicing by bundling both filter elements you typically change together, reducing parts-sourcing time before a job. The main limitations are that compatibility is specific to the 6.7L Ram range and the listing offers a six-month warranty only, so buyers who want extended coverage or verified brand-backed testing may prefer an established OE supplier. For owners who do their own maintenance, this kit is a convenient, budget-conscious alternative to dealer parts.
Best for: Practical owners who maintain their 6.7L Cummins Ram themselves and want a single, budget-conscious kit that simplifies scheduled fuel and oil filter changes.
Less Ideal for: Fleet managers or owners who require extended manufacturer-backed warranties or independent lab validation of filtration performance.
- Bundles both fuel water separator and oil filter for a single scheduled service
- Metal outer construction that supports durability and handling during installation
- Designed to meet or exceed factory-quality standards according to the listing
- Direct fit for 2013–2018 6.7L Cummins Ram 2500–5500 so no modification is needed
- Warranty period is limited to six months
- Not from a long-established OEM supplier so long-term reliability claims have less independent verification
Verdict: A convenient, cost-conscious replacement kit that bundles the fuel water separator and oil filter for routine maintenance on 2013–2018 6.7L Cummins Ram trucks.
4. KOROP 6.7L Cummins Replacement Oil Filter with Plug Tool Kit
| Item Count | 1 Count |
|---|---|
| Included Components | 1 Plug Tool, 1 Oil Filter |
| Product Grade | Replacement Part |
| Compatible Vehicle Type | Truck |
| Material Type | Steel |
This KOROP oil filter is a budget-focused replacement designed for 6.7L Cummins diesel Ram trucks and includes a plug tool to simplify removal. It replaces several common part numbers such as Mopar 5083285AA and Fleetguard LF16035, so it is intended as a direct-fit, vehicle-specific replacement for routine oil changes. The steel construction and claimed factory-equivalent interchange compatibility mean it should hold up under normal service intervals and provide basic filtration to protect the oil system. The included plug tool is a practical touch that makes swapping the element cleaner and faster for DIYers who change oil at home. Limitations are typical of low-cost replacements: filtration media specifics and longevity are not detailed, and long-term durability beyond short warranty periods can vary between units. For regular maintenance and budget-minded buyers who follow recommended service intervals, this filter offers a straightforward way to keep a Ram diesel running without paying dealer prices.
Best for: Owners who prioritize low-cost, simple replacements and do their own oil changes on Ram diesel trucks and want an included tool to speed up the job.
Less Ideal for: Drivers seeking documented high-mileage or heavy-duty filtration performance for extended intervals should consider premium branded filters with published media specifications.
- Direct-fit replacement for common Mopar and Fleetguard part numbers
- Includes a plug tool to make filter removal and installation easier
- Steel construction for structural durability during service
- Vehicle-specific fit for Ram 6.7L and 5.9L Cummins applications
- Manufacturer does not publish detailed filter media or micron ratings
- Warranty period is limited to six months
Verdict: A cost-effective, direct-fit oil filter kit for Ram diesel owners who want a cheap, practical replacement with a removal tool included.
5. Cummins Filtration Fleetguard LF16035 Oil Filter
| Thread Size | 1-16 UN-2B |
|---|---|
| Outside Diameter | 93.47 Millimeters |
| Manufacturer | Cummins Filtration |
| Product Grade | Performance Part |
The Fleetguard LF16035 is a spin-on oil filter made by Cummins Filtration for Dodge Ram Cummins diesel engines, built to meet the demands of heavy-duty truck service. It installs like a standard replacement filter and uses resin media and a machined exterior for a robust cartridge that resists collapse and handles long service intervals. The large outside diameter and extended height increase filter media capacity, which helps trap more contaminants and maintain oil flow under heavy loads. Thread size and fitment match factory connections for straightforward, leak-free installation. Because it is a performance-grade, vehicle-specific fit, it is aimed at routine maintenance and fleet-style use where durability and consistent filtration matter more than lower cost. The main limitation is that it is a direct-fit part for specific Dodge Ram Cummins diesel applications, so buyers must confirm compatibility with their engine and model year before purchase.
Best for: Buyers who prioritize dependable, factory-quality filtration for regular maintenance on Dodge Ram trucks with Cummins diesel engines and want a durable, fleet-capable replacement.
Less Ideal for: Someone looking for a universal or budget aftermarket filter for multiple vehicle types should consider other options.
- Designed by Cummins Filtration for factory-quality replacement fit and function
- Larger outside diameter and greater height for increased media capacity
- Resin media and machined exterior improve structural durability
- Thread size and vehicle-specific fit match factory connections for easy installation
- Made for specific Dodge Ram Cummins diesel fitment so not a universal solution
Verdict: Choose the Fleetguard LF16035 when you need a durable, factory-quality replacement filter that reliably handles heavy-duty Cummins diesel service on a Ram truck.
6. Mopar Premium Oil Filter (Part 5083285AA)
| Thread Size | 3/4-16 UNC |
|---|---|
| Manufacturer Part Number | 5083285AA |
| Product Grade | Replacement Part |
| Automotive Fit Type | Vehicle Specific Fit |
This Mopar Premium Oil Filter is a direct-fit replacement designed to filter contaminants and protect the engine on compatible Chrysler platforms. It installs the same way as the factory unit and is built to the manufacturer specification for consistent fit and function, so you should expect straightforward, no-fuss swaps during routine oil changes. Notable features include machined exterior construction and a standard 3/4-16 UNC thread for secure mounting. In use it provides reliable particle removal to help preserve engine components and maintain oil flow, which supports long-term engine reliability when coupled with regular service intervals. The main limitations are that it is a vehicle-specific factory replacement rather than a high-capacity or extended-life performance filter, so drivers seeking longer change intervals or enhanced filtration media will need to look at aftermarket performance options. For owners prioritizing factory fit and predictable performance, this Mopar filter delivers exactly what the service schedule requires.
Best for: Buyers who prioritize proven, factory-specified replacements and want a low-risk, easy-to-install oil filter that matches original fitment and service intervals.
Less Ideal for: Drivers who plan long oil change intervals or want upgraded filtration media for severe towing, heavy-duty use, or extended drain intervals should consider high-capacity aftermarket options instead.
- Factory-designed fit ensures straightforward, hassle-free installation
- Machined exterior and manufacturer construction for consistent build quality
- Standard thread size matches factory mounting for secure sealing
- Designed to meet OEM specifications for reliable day-to-day protection
- Not marketed as an extended-life or high-capacity performance filter
Verdict: Choose this Mopar filter if you want a low-risk, factory-spec replacement that guarantees fit and dependable day-to-day engine protection.
Choosing the Right Ram 3500 Diesel Oil Filter: Key Factors to Consider
Filtration Efficiency and Beta Ratio
Filtration efficiency determines how effectively a filter removes soot and metal particles from diesel engine oil. A higher beta ratio at a given micron rating means more particles of that size are captured rather than passing through, which helps protect bearings, camshafts, and injectors. For a Ram 3500 Diesel, prioritize filters with published beta ratios and micron ratings suited for heavy soot loads.
Filters that trap finer particles reduce abrasive wear but can restrict flow if media density is too high. Balance efficiency with adequate flow characteristics so oil pressure remains stable under load and during cold starts. Look for independent test data or manufacturer filtration curves where possible.
Contaminant-Holding Capacity
Holding capacity refers to how much soot and debris a filter can store before reaching a high-pressure differential. Diesel engines produce significant soot, especially under towing or heavy payloads, so a filter with higher capacity will maintain filtration longer and reduce the risk of early bypass.
Consider your typical duty cycle: frequent towing or long idling will require greater capacity. A filter that clogs quickly forces the bypass valve to open, which temporarily allows unfiltered oil to circulate. Choosing a unit with sufficient capacity reduces bypass events and supports longer maintenance intervals when appropriate.
Flow Characteristics and Bypass Valve Design
Adequate flow at both operating temperature and cold start is essential for engine protection. The bypass valve permits oil flow if the filter becomes too restrictive but should be set to open only at safe differential pressures. Poorly designed bypass valves can open too early or fail to reseal, exposing the engine to contaminants.
Evaluate filters with consistent flow rates and a well-engineered bypass that prevents starvation without undermining filtration. For diesel service, a reliable bypass design reduces the chance of unfiltered oil reaching sensitive engine parts during heavy load or low-temperature operation.
Seal, Gasket Quality, and Thread Compatibility
A dependable seal is critical to prevent leaks and maintain oil pressure. Gasket materials must resist oil additives, heat, and vibration typical of a Ram 3500 Diesel operating environment. Poor gasket selection or improper sealing can lead to oil filter gasket leak issues and potential engine damage.
Check that the filter matches factory thread size and sealing surface profile to avoid cross-threading or sealing failures. Anti-drainback valves are also important for preserving oil in the filter during shutdown and preventing dry starts.
Construction, Corrosion Resistance, and Durability
Diesel trucks often see harsher service conditions, including exposure to road salts, debris, and high underhood temperatures. Metal canister strength, shell coatings, and internal support structure affect how well a filter withstands vibration and pressure spikes. Weak construction can deform or rupture the housing.
Choose filters with robust shells, reinforced end caps, and protective coatings to resist corrosion. Durability also matters for longer service intervals and fleet use, where the filter may spend extended time under load between changes.
Serviceability and Fitment Practicality
Ease of replacement affects how often maintenance is completed correctly. Spin-on oil filter sizes and wrench flats that align with common tools simplify oil filter replacement for DIY owners and technicians. Cartridge-style filters can reduce waste but may require different access or housing removal.
Consider availability of replacement elements, the location of the filter on the Ram 3500 Diesel for clearance during removal, and whether the filter supports standard maintenance procedures. A more serviceable filter lowers the chance of installation errors and ensures proper torque on the sealing surface.
Understanding Diesel-Specific Filtration Needs
Diesel oil carries more soot and combustion byproducts than gasoline oil, which places higher demands on filter media and capacity. Effective diesel filtration targets a balance between fine-particle capture and sufficient capacity to avoid frequent bypass events under load.
For the Ram 3500 Diesel, pay attention to filtration specifications that mention soot handling or extended-drain capability. Filters designed with multi-layer media or increased pleat surface area can offer improved longevity without severely restricting flow.
- Look for media engineered to trap soot and wear particles
- Higher pleat count often correlates with greater surface area and capacity
- Consider whether the filter is rated for extended drain intervals used in some diesel service schedules
Spin-On Vs Cartridge-Style Filters
Both spin-on and cartridge-style filters are used on modern diesel trucks. Spin-on filters are fully contained units that screw onto the engine and are familiar to many owners. Cartridge systems use a reusable housing and replaceable filter elements, which can reduce waste and sometimes lower long-term cost.
Service accessibility and the toolset required for removal matter on the Ram 3500 Diesel. Evaluate which type fits your maintenance routine and garage setup, and confirm thread and housing compatibility before buying.
- Spin-on: easier to replace, simple disposal
- Cartridge: less waste, may require housing inspection and cleaning
- Both types can offer high filtration performance if properly specified
Signs You Need to Change the Oil Filter
Common indicators that a filter change is due include rising oil pressure differential, increased engine noise, reduced oil flow symptoms, or visible contamination in the oil sample. For diesel trucks, soot accumulation can accelerate these symptoms, especially after heavy towing or extended idling.
Regular inspection during oil changes helps catch gasket deformation, seepage, or evidence of bypassing. Addressing a compromised filter promptly prevents permanent wear.
- Monitor oil pressure and engine performance after heavy loads
- Inspect filter gasket area for seepage or wetness
- Analyze used oil if you suspect excessive soot or dilution
How Maintenance Interval Affects Filter Choice
Longer oil service intervals demand a filter that can hold more contaminants without excessive pressure drop. If you follow extended drain schedules, choose a filter rated for higher contaminant-holding capacity and proven flow characteristics across the interval.
Shorter intervals allow you to prioritize maximum filtration efficiency over capacity. Match the filter selection to the interval you intend to run to avoid premature bypass or unnecessary restriction.
- Plan filter choice around your expected oil change interval
- Fleet or heavy-duty use generally benefits from higher-capacity filters
- Confirm manufacturer guidance for interval limits when combining filter and oil type
Common Installation Mistakes and How to Avoid Them
Typical installation errors include over-tightening or under-tightening, failing to lubricate the gasket, cross-threading, and not replacing the anti-drainback valve when required. Any of these can cause leaks, gasket failure, or reduced performance on the Ram 3500 Diesel.
Before installing, compare the new filter to the removed unit to verify thread size and gasket type. Apply a thin coat of clean engine oil to the gasket, and tighten to the recommended hand or torque specification to ensure a proper seal.
- Always check thread match and gasket seating
- Lubricate gasket with clean oil before installation
- Tighten to recommended spec to avoid damage or leaks
Oil and Filter Pairing: Why It Matters
Oil viscosity and formulation influence how contaminants move and how often the filter must capture them. Some diesel engine oils contain detergents and dispersants that keep soot suspended, increasing the load on the filter. Selecting a filter compatible with your chosen oil helps maintain flow and filtration balance.
When switching to a different oil type, review the filter's published compatibility or manufacturer recommendations. Proper pairing supports consistent oil pressure and cleaner oil between changes.
- Higher detergent oils may increase soot suspension and filter loading
- Match filter capacity to oil change frequency and oil type
- Check for any manufacturer notes about oil-filter compatibility
Still looking for the perfect fit?
Select your Ram 3500 configuration to see the most relevant Oil Filters recommendations
How We Chose the Best Ram 3500 Diesel Oil Filter
We evaluated candidates based on criteria that matter for heavy-duty diesel use in the Ram 3500. Primary considerations included particulate capture and beta ratio to assess filtration efficiency, and contaminant-holding capacity to handle soot and extended drain intervals typical of diesel operation. Flow rate and bypass valve performance were assessed to ensure consistent oil supply at cold start and under high oil stress. Construction quality was examined, focusing on canister strength or cartridge housing, gasket materials, and anti-drainback features for correct sealing and longevity. Ease of service, including common spin-on sizes and thread compatibility, informed usability scores for regular maintenance or fleet environments. Corrosion resistance and shell coating were reviewed for long-term durability in underbody exposure.We excluded options that do not meet factory thread or sealing specifications for the Ram 3500 Diesel, products with insufficient published filtration data, and filters intended only for gasoline engines. The final list reflects balanced choices across efficiency, capacity, and service convenience.
Our full evaluation process is outlined in our review methodology.
FAQ
How often should I replace the oil filter on a Ram 3500 Diesel?
It depends on usage. For standard driving, many owners change the filter with every oil change. Heavy towing or severe-duty use may require more frequent changes. Follow your engine maintenance plan and monitor oil condition.
Can I switch between spin-on and cartridge filters on my Ram 3500 Diesel?
Switching requires that the replacement system physically fits the engine and matches the housing and thread specifications. Conversion is not automatic; ensure compatibility and consider any housing or adapter requirements before changing filter types.
What causes an oil filter gasket leak and how do I fix it?
Leaks are usually from improper sealing, damaged gaskets, or cross-threading. Fix by cleaning the sealing surface, replacing the gasket if deformed, lubricating the new gasket with oil, and tightening to the proper specification. If the housing is damaged, it may need replacement.
Are high-capacity filters better for towing with a Ram 3500 Diesel?
Often yes. Towing increases soot and contaminant production, so filters with higher holding capacity maintain lower differential pressure longer. That said, ensure the filter still provides adequate flow and fits service practices.
Will a synthetic oil filter media work with my diesel oil?
Synthetic media is widely compatible and can offer improved efficiency and capacity. However, performance depends on the specific filter design and oil formulation. Confirm manufacturer compatibility and choose media that supports your maintenance interval.
How do I verify the replacement filter fits my Ram 3500 Diesel?
Check thread size, sealing surface design, and anti-drainback features against the factory specifications or your vehicle's service manual. Compare the physical dimensions and installation clearance to the existing filter before purchasing.
Final Verdict
Prioritize filtration efficiency, contaminant-holding capacity, and reliable sealing when choosing an oil filter for your Ram 3500 Diesel. Your typical duty cycle should drive the balance between maximum particle capture and the capacity to handle soot during towing or extended operation.Choose a filter that matches factory fitment, offers robust construction, and aligns with your oil change interval. That approach minimizes risk of bypass or leaks and helps preserve engine life under heavy-duty diesel conditions.
Explore More:
- Check out all Ram 3500 parts & accessories
- Explore Oil Filters Maintenance & Repair Guides
- Explore Engine
- Browse all Auto Parts
