Top 5 Reasons to Choose Mopar Oil & Fuel Filters for RAM Trucks | OEM vs Aftermarket Diesel Filtration Explained

Introduction

When it comes to maintaining your RAM 2500, 3500, 4500, or 5500 diesel truck, choosing the right oil and fuel filters is critical for ensuring peak performance and engine longevity. Among countless options on the market, Mopar OEM filters stand out as the gold standard — built specifically for your Cummins 6.7L diesel engine. In this article, we break down the top five reasons why Mopar oil and fuel filters are the ultimate choice for RAM diesel owners, and how they compare to aftermarket alternatives.

1. Engineered for Cummins 6.7L Diesel Compatibility

Mopar oil filters (like 5083285AA and 68507598AA) and Mopar fuel filters (68065608AB, 68157291AA) are designed to meet or exceed the OEM specs for RAM diesel trucks from 2010 to 2024. This ensures:

•  Perfect fit every time

•  Optimized fuel and oil flow

•  Seamless compatibility with factory systems

These filters are engineered in partnership with Cummins to handle the exact pressure and heat conditions your RAM diesel engine endures, making them superior to most aftermarket filters.

2. Superior Filtration Efficiency

Each Mopar diesel fuel filter is rated to capture even the smallest particulates, with 2-micron filtration capability in modern replacements like the FL2124S oil filter and FD4625 fuel filter kit. This level of filtration protects:

•  Fuel injectors from clogging

•  Turbo systems from oil residue

•  Engine internals from harmful debris

Unlike many aftermarket options, Mopar filters retain filtration integrity for longer service intervals — a critical factor when towing, hauling, or driving in extreme temperatures.

3. Built with High-Quality OEM Materials

All Mopar filters are made using:

•  Zinc-plated anti-corrosion outer shells

•  High-temperature nitrile rubber sealing rings

•  Durable internal bypass and anti-drainback valves

This ensures protection under high load, long-haul conditions, and prevents cold start issues — an area where cheaper filters often fail.

4. Backed by the RAM & Mopar Warranty

Installing OEM Mopar filters helps protect your RAM’s warranty. Many aftermarket filters do not meet warranty requirements, risking expensive repairs due to unverified performance. With Mopar:

•  You maintain factory coverage

•  You get peace of mind during dealership services

• You reduce the risk of warranty claims being denied

For anyone running a 6.7L Cummins diesel under warranty, this is a no-brainer.

5. Proven Performance in Real-World Conditions

Thousands of diesel truck owners trust Mopar oil and fuel filters for:

• 🔧 Long-distance hauling

• 🛠️ Fleet vehicle reliability

• 🚚 Off-road and harsh-weather durability

Fleet managers, off-roaders, and everyday drivers continue to choose Mopar for consistently clean oil, smooth fuel delivery, and reduced engine wear — all of which translate to longer engine life and better fuel economy.

Mopar OEM vs Aftermarket Filters: Quick Comparison Table

Feature	Mopar OEM Filters	Aftermarket Filters
Fit & Compatibility	Perfect fit for RAM/Cummins	May require modification
Filtration Micron Rating	As low as 2 microns	Typically 5–10 microns
Warranty Coverage	Fully compliant with RAM warranty	Often voids warranty
Build Materials	OEM-grade steel, seals, and valves	Varies by brand, not always tested
Price	Slightly higher	Lower upfront cost
Long-Term Engine Protection	Excellent	Inconsistent

 

Conclusion

If you’re serious about protecting your RAM diesel engine, there’s no substitute for genuine Mopar oil and fuel filters. Whether you're driving a 2024 RAM 3500, a 2016 RAM 2500, or a 2020 RAM 4500, using Mopar ensures unmatched reliability, OEM quality, and peace of mind — backed by factory support.

Stop gambling on aftermarket filters that “might” fit. Invest in OEM Mopar filters and give your Cummins engine the filtration it deserves.

Recommended Mopar Filters for RAM Trucks

Part Number	Filter Type	Compatible Models
5083285AA	Oil Filter	RAM 2500–5500 (5.9L/6.7L)
68065608AB	Fuel Filter	RAM 2500–5500 6.7L
68507598AA	Oil Filter	RAM & Jeep EcoDiesel
FL2124S	Oil Filter	Replaces FL2051S (2011–25)
FD4625	Fuel Filter	2017–2023 RAM 6.7L