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Renault 7421380472 Fuel Filter: Technical Guide, Functionality, and Application
The Renault 7421380472 Fuel Filter is a vital component in the fuel system of Renault heavy-duty commercial vehicles. Designed for diesel-powered engines, this filter ensures that only clean fuel reaches the injectors and combustion chamber, thereby enhancing engine efficiency, performance, and longevity. In a modern fuel injection system, even microscopic contaminants can cause major damage or disrupt engine operations. The 7421380472 filter provides a reliable barrier against impurities, supporting optimal combustion and regulatory compliance for emissions.
1. Purpose and Importance of the Fuel Filter
The fuel system in diesel engines is highly sensitive to contaminants such as dirt, water, rust particles, and microbial growth. These contaminants can enter the fuel supply chain during production, storage, or refueling and pose a significant risk to high-pressure components like:
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Fuel injectors
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Fuel pumps
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Common rail systems
The Renault 7421380472 Fuel Filter plays a critical role in removing these particles before they enter the engine. Clean fuel leads to more complete combustion, improved power output, and lower exhaust emissions, all while protecting expensive engine components from premature wear.
2. Technical Specifications
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Part Number: 7421380472
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Manufacturer: Renault Trucks (a Volvo Group brand)
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Application: Diesel fuel filtration in medium and heavy-duty trucks
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Filter Type: Spin-on cartridge or inline fuel filter (model-specific)
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Filtration Efficiency: ≥98% for particles ≥5 microns
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Water Separation: Integrated separator or drain plug (optional, depending on model)
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Material: Synthetic or cellulose composite media with corrosion-resistant housing
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Thread Size: Usually M16x1.5 or compatible
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Operating Pressure: Up to 10 bar
3. Compatibility and Applications
The 7421380472 filter is used in several Renault Trucks models including:
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Renault T Range (long haul)
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Renault C and K Ranges (construction and heavy-duty)
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Renault D Range (distribution and urban logistics)
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Midlum and Premium series (legacy models)
It is designed for use with Euro 5 and Euro 6 diesel engines, especially those equipped with common-rail injection systems. To ensure proper fitment, technicians should always verify compatibility using the vehicle’s VIN or Renault’s parts catalog.
4. Key Benefits
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Improved Engine Efficiency: Clean fuel supports better combustion and throttle response
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Enhanced Engine Longevity: Prevents damage to precision-engineered injection components
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Reduced Emissions: Helps maintain emissions compliance by ensuring complete combustion
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Optimized Fuel Economy: Allows the engine to run with the ideal air-fuel ratio
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Maintenance of Power Output: Prevents power loss due to clogged injectors or restricted flow
5. Maintenance and Replacement Guidelines
Replacement Interval:
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Every 30,000 to 60,000 km, or as specified in the vehicle’s maintenance schedule
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More frequent changes may be needed in dusty, humid, or low-quality fuel environments
Maintenance Tips:
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Inspect the filter housing and surrounding connections during every oil change
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Drain water from the filter housing if a water separator is integrated
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Prime the system properly after replacing the filter to avoid starting issues
Replacement Steps:
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Shut off the engine and depressurize the fuel system
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Remove the old filter with a strap wrench
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Clean the mounting base and check gasket condition
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Apply a thin coat of clean diesel or oil to the new filter gasket
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Install the new filter by hand until the gasket contacts the base, then tighten
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Bleed the fuel system (if required) and check for leaks after starting the engine
6. Signs of Fuel Filter Degradation or Failure
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Hard engine starting or misfiring
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Reduced engine power and acceleration
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Excessive smoke or emissions
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Rough idling or hesitation
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Increased fuel consumption
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Dashboard warning lights (fuel pressure or engine diagnostics)
Ignoring these symptoms can lead to costly repairs, reduced fuel economy, and increased vehicle downtime.
7. OEM vs. Aftermarket Options
Renault’s OEM 7421380472 fuel filters are manufactured to meet strict factory specifications. However, premium aftermarket versions can offer similar performance if sourced from trusted brands.
Key considerations:
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Filtration efficiency (preferably 98% or higher)
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Media durability under high-pressure diesel flow
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Compatibility with fuel systems and mounting threads
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ISO/TS 16949 certified manufacturing
8. Packaging, Handling, and Export Information
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Supplied in Renault-branded boxes with part number and barcode
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Must be stored in dry, dust-free environments
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Avoid exposure to oil, fuel, or sunlight before installation
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Protect gasket surfaces during handling
9. Global Demand and Market Reach
Due to Renault Trucks’ strong presence in European and international markets, the 7421380472 fuel filter is widely distributed and exported. Common markets include:
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Europe: France, Germany, Spain, Poland
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Middle East: Turkey, UAE, Saudi Arabia
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Africa: South Africa, Kenya, Morocco
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Latin America: Brazil, Chile, Colombia
Distributors and service centers commonly stock both OEM and aftermarket filters to cater to a range of customer needs and budgets.
Renault 7421380472 Fuel Filter
The Renault 7421380472 Fuel Filter is a vital component in protecting the fuel system and enhancing overall engine reliability. With the growing sophistication of diesel engines and tighter emissions standards, proper filtration is more important than ever. Routine replacement of this filter with OEM or high-quality equivalents ensures clean fuel delivery, reduced maintenance costs, and improved operational efficiency for Renault commercial vehicles. Whether you’re a fleet manager, workshop technician, or parts distributor, understanding this filter’s technical details and function is essential for sustaining vehicle performance and uptime.
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