Description
Product Overview
The iFJF PF7977 Fuel Filter is a high-performance 7 Micron fuel filter designed specifically for 2002-2010 Ram 2500 & 2002-2007 Ram 3500 with 5.9L Cummins. Engineered to protect your fuel injection system from harmful contaminants, water, and debris, this filter meets or exceeds OEM specifications for filtration efficiency and flow rate.
Key Features
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7 Micron High-Efficiency Filtration: Removes 99% of harmful particles and water from diesel fuel, protecting high-pressure common rail injectors and fuel pumps
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Heavy-Duty Construction: Reinforced steel housing with corrosion-resistant coating withstands extreme operating temperatures and vibration
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Optimal Flow Rate: Up to 90 GPH ensures consistent fuel delivery even under maximum load conditions
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Water Separation Technology: Advanced hydrophobic media separates emulsified water from fuel, preventing injector tip erosion and microbial growth
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OEM Matched Fit: Precision-engineered threads and gasket profile ensure leak-free installation every time
Compatibility
| Make / Application |
Engine |
Year Range |
| 2002-2010 Ram 2500 & 2002-2007 Ram 3500 |
Cummins 5.9L ISB 24V |
All Compatible Years |
Specifications
| Specification |
Value |
| Part Number |
PF7977 |
| Filtration Rating |
7 Micron |
| Flow Rate |
Up to 90 GPH |
| Filter Type |
Spin-On with Water Separation |
| Material |
Heavy-gauge steel with anti-corrosion coating |
| Replaces OEM |
Fleetguard FS19800, FS19579, P550800, Mopar 5013474AA, 33585XE |
Why Choose iFJF Heavy-Duty Filters
Modern diesel engines with common rail injection systems operate at pressures exceeding 30,000 PSI. Contaminated fuel can destroy injectors in minutes, leading to repairs costing thousands of dollars. Our PF7977 fuel filter provides the first line of defense, meeting or exceeding the filtration performance of OEM filters at a fraction of the dealership price. Every filter is manufactured in ISO 9001 certified facilities and tested to ensure consistent quality.
Frequently Asked Questions
Q: How often should I replace the PF7977 fuel filter?
A: For heavy-duty diesel applications, replace every 15,000-25,000 miles or every 500 hours of operation, whichever comes first. For agricultural equipment, replace annually or per your equipment manufacturer's schedule.
Q: What happens if I don't replace my fuel filter on time?
A: A clogged fuel filter restricts fuel flow, causing power loss, poor acceleration, hard starting, and reduced fuel economy. In severe cases, bypassed contaminants can damage high-pressure fuel pumps and injectors — repairs that often exceed $5,000.
Q: Is this filter compatible with biodiesel blends?
A: Yes. Our filter media is compatible with biodiesel blends up to B20. However, biodiesel has stronger solvent properties and may release accumulated deposits in older fuel systems, requiring more frequent filter changes initially.
Q: How do I prime the fuel system after filter replacement?
A: Fill the new filter with clean diesel fuel before installation. After installing, cycle the key to the "ON" position (without starting) 3-4 times to activate the electric lift pump. For engines without a lift pump, use the manual primer pump (if equipped) or consult your service manual.
Q: Does this filter require any special tools for installation?
A: A standard oil filter wrench or strap wrench is sufficient for most applications. Always lubricate the gasket with clean diesel fuel before installation and hand-tighten, then turn an additional 3/4 turn.
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