The Essential Guide to Your 2024 Ram 2500 Fuel Filter

2024 Ram 2500 with the 6.7L Cummins diesel engine. Learn about the dual filter system, recommended replacement intervals, signs of a clogged filter, and cost considerations for maintaining optimal fuel system health and engine performance."

May 20, 2025 - 11:29
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The Essential Guide to Your 2024 Ram 2500 Fuel Filter

The 2024 Ram 2500, particularly models equipped with the 6.7L Cummins Turbo Diesel engine, relies heavily on its fuel filter system to ensure the longevity and optimal performance of its sophisticated fuel injection components. Diesel engines are highly sensitive to fuel quality, and even microscopic contaminants can cause significant damage.

The Role of the Fuel Filter

The fuel filter's primary function is to remove impurities, dirt, rust, and water from the diesel fuel before it reaches the fuel injectors and high-pressure fuel pump. In a Cummins diesel engine, this is a critical task. Modern diesel fuel systems operate at extremely high pressures and with very tight tolerances. Even tiny particles can cause wear and tear on injectors and pumps, leading to costly repairs. Water, in particular, is detrimental, as it can cause corrosion and hinder lubrication, leading to system failures.

Dual Filter System

The 2024 Ram 2500 Fuel Filter 6.7L Cummins typically employs a dual fuel filter system for enhanced protection. One filter is usually located on the engine, often referred to as the "engine-mounted" or "primary" fuel filter. The second filter, known as the "chassis-mounted" or "secondary" fuel filter, is typically located underneath the truck, often near the fuel tank. This secondary filter often incorporates a water separator, which is crucial for removing any water that may have entered the fuel.

The parts numbers for the Mopar genuine fuel filters for 2019-2024 Ram 6.7L Cummins trucks are commonly cited as 68157291AA and 68436631AA. These are often sold together as a kit.

Replacement Interval

Maintaining a regular replacement schedule for your fuel filters is paramount. For the 6.7L Cummins diesel engine in the Ram 2500, the recommended interval for replacing both the engine and chassis-mounted fuel filters is generally every 15,000 miles. However, this interval can be shorter under severe duty conditions, such as frequent towing, heavy loads, or dusty environments, where 10,000 miles might be more appropriate. Always consult your owner's manual for the most accurate and up-to-date maintenance schedule for your specific truck.

Signs of a Clogged Fuel Filter

Ignoring the fuel filter replacement schedule can lead to a clogged filter, which manifests in several noticeable symptoms that can impact your truck's performance and potentially cause more severe damage:

  • Difficulty Starting: A clogged filter restricts fuel flow, making it harder for the engine to receive enough fuel to ignite, leading to prolonged cranking or a no-start condition.
  • Reduced Engine Performance: You might experience a noticeable drop in power, especially under acceleration or when carrying heavy loads. The engine may hesitate, stumble, or feel sluggish as it struggles to get sufficient fuel.
  • Rough Idling or Stalling: Insufficient fuel supply can cause the engine to idle roughly, vibrate excessively, or even stall, particularly at low RPMs or when stopped.
  • Decreased Fuel Economy: When the engine isn't getting enough fuel, it may compensate by trying to draw more, leading to a reduction in fuel efficiency.
  • Check Engine Light: The truck's onboard diagnostics system can detect low fuel pressure caused by a clogged filter and illuminate the "Check Engine" light, indicating a fault.
  • Unusual Noises from the Fuel Pump: The fuel pump has to work harder to push fuel through a restricted filter, which can lead to a whining or humming noise from the fuel pump.
  • Strong Fuel Odor: In some cases, a severely clogged filter can cause unburnt fuel to be expelled through the exhaust, leading to a strong diesel smell.

Cost of Replacement

The cost of replacing the fuel filters on a 2024 Ram 2500 can vary. The filters themselves (a set of two Mopar OEM filters) typically range from $40 to $140, depending on the vendor and whether they are purchased individually or as a kit.

If you opt for professional installation at a dealership or independent shop, you'll need to factor in labor costs. The national average for fuel filter replacement (parts and labor) can be anywhere from $90 to $207. However, some reports indicate higher costs, with some dealerships charging upwards of $400 for the service. Performing the replacement yourself can save significant money, but requires some mechanical aptitude and the right tools.

DIY Replacement Considerations

Many Ram 2500 owners choose to replace their fuel filters themselves. While it's generally considered a manageable DIY task, there are a few important considerations:

  • Tools: You'll likely need a specific socket size (often 28mm) for the engine-mounted filter housing and potentially a strap wrench or specialized tool for the chassis-mounted filter/water separator.
  • Fuel Spillage: Expect some fuel spillage during the process. Have appropriate containers and absorbents ready.
  • O-Rings: Ensure the new filters come with new O-rings, and make sure they are properly seated and lubricated to prevent leaks.
  • Priming the Fuel System: After replacing the filters, it is crucial to prime the fuel system to remove any air. This is typically done by cycling the ignition key multiple times without starting the engine, allowing the fuel pump to run and build pressure. Failure to prime the system correctly can lead to starting issues and potential damage to the fuel pump.
  • OEM vs. Aftermarket: While aftermarket filters are available, many experienced owners and mechanics recommend sticking with genuine Mopar or other high-quality OEM equivalent filters (like Fleetguard) for critical components like fuel filters in diesel trucks. Some aftermarket filters have been reported to cause issues, including check engine lights, due to differing flow characteristics or internal sensing mechanisms.

In conclusion, the fuel filter system in the 2024 Ram 2500 with the Cummins diesel engine is a vital component for maintaining engine health and performance. Adhering to the recommended maintenance schedule, recognizing the symptoms of a clogged filter, and using quality replacement parts are all essential for ensuring your Ram 2500 continues to run reliably for years to come. watch it