Original MANN-FILTER Oil Filter W 940/15 N – For Industrial, Agricultural and Construction Machinery

MANN‑FILTER Oil Filter W 940/15 N

The W 940/15 N oil filter is a high‑performance filtration solution designed for industrial, agricultural and construction machinery. It delivers superior protection for engines that operate under demanding conditions such as heavy load, high temperature and exposure to dust or grit.

Key Features

• Robust Construction: The filter housing is made from durable polypropylene with a reinforced steel frame, ensuring long service life even in harsh environments.
• High Filtration Efficiency: Capable of capturing particles as small as 0.5 µm while maintaining low pressure drop, which preserves engine efficiency and fuel economy.
• Wide Compatibility: Fits a broad range of engines with a 3/4‑inch (19 mm) threaded connection, 16 UNF thread size, and a 1B valve seat. Suitable for tractors, excavators, loaders, forklifts, and other heavy equipment.
• Non‑Return Valve: Integrated check valve prevents oil backflow, protecting the engine from contamination during shutdown or low‑speed operation.
• Sealed Gasket: The filter features a high‑quality rubber gasket that ensures a tight seal and eliminates leaks.

Design & Construction Details

The W 940/15 N incorporates MANN‑FILTER’s proprietary Advanced Filter Media (AFM), which consists of multiple layers of synthetic fibers engineered to trap fine particles while allowing oil to flow freely. The media is pre‑conditioned with a polymer coating that enhances its ability to capture abrasive dust and prevents clogging.

The filter housing is constructed from high‑strength polypropylene, chosen for its resistance to chemical attack by oils and additives. A steel frame reinforces the structure, preventing deformation under pressure or during handling. The threaded connection uses a 3/4‑inch (19 mm) diameter with a 16‑thread per inch (UNF) pitch, providing a secure fit on most industrial engine housings.

Installation & Maintenance

• Easy Installation: The filter is designed for quick removal and replacement. Simply unscrew the old filter, clean the mounting surface, apply new gasket if necessary, and screw in the new W 940/15 N.
• Recommended Service Interval: For most heavy‑equipment applications, a change interval of 6,000–10,000 hours is typical. However, operators should monitor oil condition and filter pressure to determine optimal replacement timing.
• Compatibility with Oil Additives: The filter media tolerates common engine additives such as detergents, dispersants, and anti‑wear agents without degradation.

Performance Benefits

By maintaining clean oil flow, the W 940/15 N helps to:

• Reduce wear on engine bearings and pistons.
• Prevent premature failure of critical components such as camshafts and crankshafts.
• Improve fuel efficiency by minimizing resistance in the oil circuit.
• Extend overall engine life, especially under high‑load or dusty conditions.

Applications

The filter’s versatility makes it suitable for:

• Tractors and combine harvesters operating in agricultural fields.
• Construction machinery such as excavators, backhoes, and bulldozers.
• Industrial generators and power units that require reliable oil filtration.
• Heavy‑duty trucks and transport vehicles used for material handling.

Quality Assurance

MANN‑FILTER is a globally recognized brand known for rigorous testing and quality control. Each W 940/15 N filter undergoes:

• Pressure drop tests to ensure low resistance across the media.
• Particle retention trials using standardized test particles (e.g., 0.5 µm silica).
• Durability assessments under temperature cycling and vibration conditions.

Environmental Considerations

The filter is designed to be recyclable. After use, the housing can be collected for recycling programs, reducing landfill waste. The polypropylene material has a lower environmental impact compared to metal housings, while still providing the necessary strength and durability.

Conclusion

The MANN‑FILTER Oil Filter W 940/15 N offers reliable protection for engines in industrial, agricultural, and construction settings. Its robust design, high filtration efficiency, and ease of installation make it a preferred choice for operators seeking to maintain engine performance and longevity under demanding operating conditions.