Wix 33403 Fuel Filter - Secondary

Reliable Fuel Filtration for Heavy-Duty Vehicles

The Wix 33403 fuel filter is engineered to provide consistent fuel filtration for heavy-duty applications. Designed as a spin-on fuel filter, it offers a robust flow rate and enhanced cellulose media to protect your engine from contaminants.

• Spin-on fuel filter design with 7/8-14 thread size for secure installation
• Enhanced cellulose media with 10-micron filtration for effective contaminant removal
• High flow rate of 12 gallons per minute to support heavy-duty fuel delivery
• Durable construction with a burst pressure rating of 250 psi
• Compact dimensions: 6.605 inches in height and 4.262 inches outer diameter

Technical Details and Performance

The Wix 33403 fuel filter features a 10-micron rating, ensuring fine filtration to protect fuel injectors and engine components from dirt and debris. Its enhanced cellulose media balances filtration efficiency with fuel flow, maintaining engine performance under demanding conditions. The filter’s spin-on style and 7/8-14 thread size allow for straightforward replacement in compatible heavy-duty trucks and equipment. With a burst pressure of 250 psi, this filter withstands high-pressure fuel systems commonly found in diesel engines.

Compatible Vehicles and Applications

This fuel filter is suitable for heavy-duty trucks and commercial vehicles requiring a high flow rate and reliable filtration. It is commonly used in diesel-powered vehicles such as Freightliner, Kenworth, Peterbilt, and Volvo trucks. The Wix 33403 is ideal for applications where maintaining clean fuel is critical to engine longevity and performance.

• Prevents fuel system clogging and injector damage
• Reduces engine misfires caused by contaminated fuel
• Helps maintain optimal fuel flow and engine efficiency
• Protects against premature wear of fuel system components

Installation Notes and Tips

When installing the Wix 33403 fuel filter, ensure the engine is off and fuel system pressure is relieved. The spin-on design simplifies replacement; apply a light coat of clean fuel or oil to the gasket before threading the filter onto the mounting base. Tighten according to manufacturer specifications to avoid leaks. Regular replacement intervals should be followed based on vehicle manufacturer recommendations and operating conditions.

Quality Assurance and Warranty

Wix filters are manufactured to meet industry standards for durability and filtration performance. The 33403 fuel filter undergoes rigorous testing to ensure it meets burst pressure and flow rate specifications. While specific warranty details are not provided here, Wix products typically come with a limited warranty against defects in materials and workmanship. Consult Wix or your vehicle’s service manual for warranty and maintenance guidelines.