Description
Product Overview
The 5801439820 Fuel Filter Kit for Case Magnum 235-380 & NH T8 T9 FR CR delivers professional-grade fuel filtration for diesel engines. Manufactured with advanced synthetic media for superior contaminant capture and water separation, this filter protects your high-pressure common rail injection system from the microscopic particles and moisture that cause premature injector and pump failure.
As diesel injection pressures climb past 30,000 PSI in modern engines, fuel cleanliness has never been more critical. A single tank of contaminated fuel can cause thousands in injector damage. This filter provides the first and most important line of defense for your fuel system.
Key Features
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High-Efficiency Filtration Media: Multi-layer synthetic media captures 99.9% of particles at the rated micron level, exceeding standard cellulose elements in both efficiency and dirt-holding capacity.
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Advanced Water Separation: Coalescing technology removes emulsified and free water from diesel fuel, preventing injector tip erosion and microbial growth.
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OEM-Spec Construction: Manufactured to ISO 9001 quality standards with precision-threaded base plate, anti-drain back valve, and high-burst-strength canister.
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Direct Fit Replacement: Engineered as a drop-in replacement — no modifications, adapters, or special tools required.
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Extended Service Life: Higher dirt-holding capacity means longer intervals between changes, reducing downtime and per-mile filtration costs.
Compatibility
| Specification |
Detail |
| Equipment |
Case Magnum, New Holland T8/T9/FR/CR Series |
| Engine |
Agricultural Diesel Engines |
| Replaces Part # |
5801439820, 504350911, 4707408, PU10020X |
| Micron Rating |
2-10 Micron Absolute |
| Filter Type |
Spin-On with Water Separation |
Why Upgrade Your Fuel Filtration?
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Extended Injector Life: Injectors operating at 30,000+ PSI have micron-level clearances. Better filtration means injectors lasting 200K+ miles instead of failing at 100K.
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Improved Cold-Weather Reliability: Superior water separation prevents ice crystal formation in fuel lines during winter.
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Reduced Maintenance Costs: Preventing one HPFP failure saves $5,000-$10,000 — the cost of a lifetime of premium filters.
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Better Fuel Economy: Clean injectors atomize fuel more efficiently, maintaining optimal combustion over the vehicle lifetime.
Installation Guide
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Safety First: Park on level ground, engage parking brake, allow engine to cool. Have a drain pan ready.
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Relieve Fuel Pressure: Remove fuel cap. On some models, pull fuel pump fuse and crank briefly.
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Remove Old Filter: Use oil filter wrench to loosen. Unscrew by hand and lower into drain pan.
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Prep New Filter: Apply thin film of clean diesel to gasket. Pre-fill if housing design allows.
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Install: Spin on by hand until gasket contacts. Tighten 3/4 to 1 full turn. DO NOT over-tighten with wrench.
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Prime System: Cycle key ON (not START) 5-6 times for 30 seconds each to purge air. Check for leaks.
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Start & Verify: Start engine, check for leaks at idle, let run 2 minutes, recheck. Dispose of old filter properly.
Frequently Asked Questions
Q: Will this fit my Case Magnum 280?
A: Yes. This filter fits Case Magnum 235-380 models including the 280. It also fits New Holland T8, T9, FR forage harvester, and CR combine series. Verify your engine serial number against OEM part numbers 504350911 or 4707408.
Q: What micron rating is this filter?
A: 2-micron absolute synthetic media — providing superior contaminant removal compared to standard cellulose filters. Lower micron = better protection for high-pressure common rail injection systems.
Q: How often should I replace this filter?
A: Replace every 500 hours or annually, whichever comes first. For heavy-duty harvesting in dusty conditions, consider 250-hour intervals. Replace water separator element at the same time.
Q: Is this OEM or aftermarket?
A: High-quality aftermarket replacement manufactured to strict ISO 9001 standards. Meets or exceeds OEM specifications for 5801439820, 504350911, and 4707408 at a fraction of dealer price.
Q: Can I install this myself?
A: Yes — basic mechanical skills sufficient. Unscrew old filter, clean mounting surface, apply thin film of clean diesel to new gasket, hand-tighten 3/4 turn after gasket contact. No special tools required.
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