Fuel Filters For Ram Cummins: Evolution And Innovations

Fuel filters are an essential component of a vehicle's fuel system, and their replacement is a critical aspect of engine maintenance. The fuel filters in Ram Cummins trucks have undergone changes over the years, with the introduction of new models and improvements in filter technology.

The 6.7L Cummins engine, found in various Ram truck models from 2007 onwards, has specific fuel filter requirements and service intervals. The early models (2007-2012) featured a single fuel filter mounted on the driver's side of the engine, while the later models (2013 and newer) employ an additional auxiliary filter mounted on the frame rail. This change was implemented to enhance fuel filtration and protect the engine's fuel system.

The recommended fuel filter service interval for the 6.7L Cummins engine is 15,000 miles or 12 months, whichever comes first. However, it's important to monitor the fuel filter service required or water in fuel messages displayed in the instrument cluster, as these indicators may prompt an early filter replacement.

When it comes to choosing fuel filters for the Ram Cummins, there are several options available. The OEM (Original Equipment Manufacturer) filters, such as MOPAR and Fleetguard, are recommended by many owners and mechanics. These filters are designed specifically for the Cummins engine and are known for their quality and reliability. However, they can be more expensive, and some owners have reported finding counterfeit filters sold online.

Aftermarket fuel filters are also available, often at a lower cost. Brands like Wix, Baldwin, Donaldson, and Fleetrite have been mentioned as alternatives to OEM filters. However, there are mixed reviews about their performance, and some owners have reported issues with counterfeit aftermarket filters causing problems with their trucks.

Overall, the fuel filters for Ram Cummins trucks have evolved to meet the demands of the engine and improve filtration. While there are options available in the market, it is essential to prioritize quality and reliability to ensure the health and longevity of the vehicle's fuel system.

Fuel filter replacement cost

The cost of replacing a fuel filter varies depending on the type of car you have and where you get the replacement done. The average cost of a fuel filter replacement is between $70 and $150, but this can be as high as $215 at a dealership service centre.

If you replace the fuel filter yourself, you can buy a new filter for around $50 from a dealership service centre, or from your local auto parts store.

For a Ram Cummins truck, you can buy a set of two fuel filters for $85 on Amazon, or for $90 from NCD Mopar. However, there have been reports of counterfeit filters being sold on Amazon, eBay and other online retailers, which can cause engine issues. It is recommended to buy filters from reputable suppliers such as Geno's Garage, or directly from a dealership.

Some people have reported paying as much as $600 for a fuel filter replacement service, but this is considered an "outrageous" price.

Fuel filter replacement difficulty

The fuel filter replacement procedure for a 6.7L Cummins engine is relatively straightforward, but it requires careful attention to detail and some mechanical knowledge. Here is a step-by-step guide on how to replace the fuel filters:

Note: These procedures are based on a 2020 model year engine, and there may be slight differences between generations.

Chassis-Mounted Fuel Filter Replacement:

• Locate the chassis-mounted fuel filter housing near the front of the fuel tank and over the driveshaft.
• Attach a 5/16-inch fuel hose to the drain valve nipple at the bottom of the fuel filter housing cap. Place the other end of the hose in a suitable drain container.
• Rotate the drain valve counterclockwise until fuel begins to drain.
• Once the fuel filter housing is empty, remove the cap with a 28mm socket. The fuel filter will be attached to the cap.
• Discard the old fuel filter and inspect the inside of the cap for metallic debris, especially on CP4-equipped 2019 and 2020 model-year vehicles.
• Remove and discard the large o-ring seal from the fuel filter housing cap.
• Lubricate the replacement filter housing cap o-ring with clean engine oil.
• Insert the new fuel filter into the cap and secure it in place.
• Reinstall the fuel filter/cap assembly into the housing. Torque to 22.5 ft-lbs (30.5 N-m) with a 28mm socket. Do not overtighten.
• Verify that the drain valve is closed.
• Cycle the engine to the "run" position (do not start) 5 to 10 times to prime the chassis-mounted filter housing.

Engine-Mounted Fuel Filter Replacement:

• Locate the engine-mounted fuel filter housing on the driver's side of the engine block, below the brake fluid reservoir.
• From beneath the vehicle, locate the fuel filter housing drain hose protruding from the bottom of the housing.
• Connect a section of tubing to the drain hose using an appropriate fitting. Do not fully insert the fitting into the drain hose to avoid a permanent connection.
• Place the other end of the tubing into a suitable drain container.
• Rotate the yellow drain valve at the base of the fuel filter housing counterclockwise to drain the housing completely.
• Lubricate the new filter housing lid o-ring, outer fuel filter seal, and inner plastic ring with clean engine oil.
• Remove the fuel filter housing cap with a 28mm socket.
• Remove the old fuel filter and install the new one.
• Close the yellow drain valve completely.
• Reinstall the fuel filter housing lid and torque to 22.5 ft-lbs (30.5 N-m).
• Cycle the ignition to the "run" position (do not start) 10 to 12 times to prime the fuel system.
• Start the engine and check for leaks at the fuel filter housing lids and drain valves.

Additional Tips:

• Fuel filter replacement is required every 15,000 miles, 12 months, or as prompted by the instrument cluster display.
• Always prime the fuel system after replacing each individual fuel filter.
• Do not pre-fill the fuel filters or filter housing with diesel fuel. The electric lift pump will cycle fuel through the system.
• Inspect the diesel fuel drained from the filter housings. Clean diesel fuel should be clear with a blue or green hue.

Fuel filter brands

Fuel filters are essential for the longevity of your high-pressure fuel injection system. The market offers a wide range of fuel filter brands, each with its own unique features and benefits. Here is an overview of some popular fuel filter brands for Ram Cummins:

• MOPAR: MOPAR is one of the most popular brands for Ram Cummins fuel filters. They offer a range of fuel filters for different years and models of Ram trucks with Cummins engines. MOPAR fuel filters are known for their quality and reliability, and they are designed to meet factory standards. They are also easy to install and come with clear instructions, making them a popular choice for DIY enthusiasts.
• Fleetguard: Fleetguard is another reputable brand that offers fuel filters for Ram Cummins engines. Their filters are known for their high-quality filtration rates and are often recommended by mechanics and dealers. Fleetguard fuel filters are designed to remove contaminants effectively and prolong the life of your fuel injection system.
• Baldwin: Baldwin is a well-known brand in the filtration industry, and they offer a range of fuel filters for Ram Cummins engines. Their filters are known for their good quality and reasonable prices. While some customers have reported issues with engine performance after installing Baldwin filters, others have found them to be a reliable alternative to OEM filters.
• G&R Performance Diesel: G&R Performance Diesel offers a unique Fuel Filter/Water Separator Conversion Kit for Ram Cummins engines. This kit allows you to use any major brand of fuel filter, providing flexibility and cost savings. It eliminates the need for the factory engine-mounted filter, making filter changes easier and less messy.
• Luberfiner: Luberfiner is a brand that offers fuel filters for Ram Cummins engines, specifically the 6.7L diesel engines from 2013 to 2024. Their filters are designed to meet OEM specifications and provide reliable performance.
• K&N: K&N is a well-known brand in the automotive filtration industry, known for their air filters. They also offer fuel filters for Ram Cummins engines, which are generally well-regarded by customers. K&N fuel filters are known for their high-quality filtration and performance.

When choosing a fuel filter brand for your Ram Cummins, it is important to consider factors such as compatibility, ease of installation, filtration quality, and price. It is always recommended to consult a professional or a trusted mechanic if you are unsure about which brand or type of fuel filter is best suited for your vehicle.

Fuel filter replacement frequency

The fuel filter replacement frequency for a Ram Cummins engine depends on several factors, including the age of the vehicle, the mileage, and the condition of the fuel filter. Here is a detailed guide on fuel filter replacement for Ram Cummins engines:

Recommended Replacement Interval

It is generally recommended to replace the fuel filters on a Ram Cummins engine every 15,000 miles or 12 months, whichever comes first. Some owners choose to replace the filters more frequently, such as every 10,000 to 15,000 miles, to ensure optimal performance and prevent potential issues.

Dashboard Indicators

In addition to the mileage and time-based intervals, it is important to monitor the dashboard indicators for any alerts. The instrument cluster display may prompt a "water in fuel" or "fuel filter service required" message before reaching the recommended replacement interval. In such cases, it is advisable to inspect and service the fuel filters promptly.

Model Year Variations

It is worth noting that the replacement frequency may vary slightly depending on the model year of the Ram Cummins engine. For instance, the 2013 and newer models employ an auxiliary filter mounted on the frame rail, in addition to the primary fuel filter. As a result, these models may have slightly different maintenance requirements compared to older versions.

Visual Inspection

Visual inspection of the fuel filters can also provide valuable information about their condition. It is recommended to check the filters for any signs of contamination, such as water or other debris. Inspecting the colour of the diesel fuel drained from the filter housings can also help identify potential issues. Clean diesel fuel should typically have a blue or green hue, and any deviations from this colour may indicate contamination.

Warranty Considerations

When deciding on the replacement frequency, it is essential to consider the warranty requirements for your specific Ram Cummins model. Keeping a maintenance log book and retaining receipts for all service-related purchases can help ensure warranty compliance in the event of any issues. Using recommended parts and adhering to the manufacturer's maintenance schedule can also help maintain the validity of the warranty.

Fuel filter replacement parts

Types of Fuel Filters

There are two types of fuel filters used in Ram Cummins engines: the primary fuel filter and the auxiliary fuel filter. The primary fuel filter, also known as the fuel-water separator unit, is mounted on the driver's side of the engine. This filter is present in all model years. On the other hand, the auxiliary filter is mounted on the frame rail between the fuel tank and the engine in 2013 and newer model trucks.

Fuel Filter Brands

When it comes to choosing a brand for your fuel filter replacement parts, there are a few reputable options to consider:

• MOPAR: MOPAR is the OEM (Original Equipment Manufacturer) brand for Dodge, Chrysler, Ram, Jeep, and other FCA (Fiat Chrysler Automobiles) vehicles. MOPAR fuel filters are designed specifically for these vehicles and are known for their reliability and performance.
• Fleetguard: Fleetguard is the filtration product line from Cummins, the manufacturer of the Cummins diesel engine. Fleetguard fuel filters are often more cost-effective than MOPAR filters, as they are sourced directly from Cummins.
• Other Brands: Other reputable brands that you can consider include Baldwin, Cat, Donaldson, Wix, and Luberfiner. However, it is important to ensure that these filters meet the OEM specifications for your Ram Cummins engine.

Fuel Filter Part Numbers

When purchasing fuel filter replacement parts, it is essential to ensure you get the correct part number for your specific engine. Here are the part numbers for some commonly used fuel filters:

• MOPAR 68061634AA (Fleetguard FS43258)
• MOPAR 68065608AB (Fleetguard FS43255)
• MOPAR 68157291AA (Fleetguard FS53000)
• MOPAR 68061633AA (Fleetguard FS43257)

Fuel Filter Service Intervals

To maintain optimal engine performance and prevent fuel system issues, it is recommended to replace the fuel filters in your Ram Cummins engine at regular intervals. The recommended service interval for fuel filter replacement is 15,000 miles (24,000 km) or 12 months, whichever comes first. Additionally, it is important to inspect the fuel filters if a "fuel filter service required" or "water in fuel" message appears on the instrument cluster display.

Fuel Filter Replacement Procedure

• Locate the chassis-mounted fuel filter housing near the front of the fuel tank and over a portion of the driveshaft.
• Attach a 5/16-inch fuel hose to the drain valve nipple at the bottom of the fuel filter housing cap, and place the other end of the hose in a suitable drain container.
• Rotate the drain valve counterclockwise to begin draining the fuel.
• Once the fuel filter housing is empty, remove the cap with a 28 mm socket. The fuel filter will be attached to the cap.
• Discard the old fuel filter and inspect the inside of the cap for any metallic debris, especially if your vehicle is equipped with a CP4 injection pump.
• Remove and discard the large o-ring seal from the fuel filter housing cap.
• Lubricate the replacement filter housing cap o-ring with clean engine oil.
• Install the lubricated o-ring onto the new fuel filter and secure it to the cap.
• Reinstall the fuel filter/cap assembly into the housing and torque it to 22.5 ft-lbs (30.5 N-m) with a 28 mm socket.
• Close the drain valve and cycle the engine to the "run" position (without starting) 5 to 10 times to prime the chassis-mounted filter.
• Locate the engine-mounted fuel filter housing on the driver's side of the engine block, below the brake fluid reservoir.
• From beneath the vehicle, locate the fuel filter housing drain hose protruding from the bottom of the housing.
• Connect a suitable tubing to the drain hose using an appropriate fitting. Ensure that the fitting is not fully inserted to prevent a permanent connection.
• Place the other end of the tubing into a drain container, preferably clear to inspect the drained fuel for contaminants.
• Open the drain valve at the base of the fuel filter housing and allow it to drain completely.
• Lubricate the new filter housing lid o-ring, the outer fuel filter seal, and the inner plastic ring with clean engine oil.
• Remove the fuel filter housing cap with a 28 mm socket.
• Remove the old fuel filter from the housing and discard it.
• Install the new fuel filter, ensuring it is properly seated.
• Close the drain valve completely.
• Reinstall the fuel filter housing lid and torque it to 22.5 ft-lbs (30.5 N-m).
• Cycle the ignition to the "RUN" position (without starting) 10 to 12 times to prime the fuel system.
• Start the engine and check for any leaks at the fuel filter housing lids and drain valves.
• Inspect the drained fuel for any signs of contamination, such as cloudy, milky, orange, or dark-colored fuel.

Fuel Filter Conversion Kits

If you're looking for an alternative to the OE-style filters, you can consider a fuel filter conversion kit. These kits are designed to save money on fuel filters and make filter changes more accessible. For example, the G&R Performance Diesel conversion kit for 2019-2023 6.7 Cummins engines eliminates the need for the engine-mounted filter, providing easier access and a more streamlined fuel filtration system.

Frequently asked questions