Original MANN-FILTER Oil Filter WK 940/15 – For Trucks, Buses and Utility Vehicles

Product Overview

The MANN‑FILTER Oil Filter WK 940/15 is a high-performance filtration solution engineered specifically for heavy-duty trucks, buses, and utility vehicles. Designed to meet the rigorous demands of commercial fleets, this filter delivers superior protection for engines that operate under extreme conditions.

Key Features & Benefits

• Advanced Filtration Technology: Utilizes a multi-layered media system that captures particles as small as 0.3 µm, ensuring clean oil and extending engine life.
• Robust Construction: Built with durable polypropylene housing and reinforced gasket seals to withstand high pressure and temperature variations typical in heavy-duty applications.
• High Flow Capacity: Maintains optimal oil flow rates, reducing the risk of pump cavitation and ensuring consistent lubrication across all engine components.
• Long Service Life: Designed for extended intervals between changes, which translates to lower maintenance costs and increased vehicle uptime.
• Easy Installation: Features a standard threaded connection (93 mm) compatible with most OEM and aftermarket fittings used in commercial vehicles.

Technical Specifications

Compatibility & Applications

The MANN‑FILTER WK 940/15 is engineered to fit a wide range of heavy-duty powertrains, including:

• Diesel engines in medium and heavy trucks (e.g., DAF LF series)
• Commercial bus engines (e.g., Irisbus/RVI models)
• Utility vehicles such as construction equipment and delivery vans
• Engine types with 4‑to‑6 cylinder configurations, typically ranging from 5 L to 12 L displacement

Its standardized thread size ensures seamless integration into existing engine bay layouts without the need for custom adapters.

Installation Procedure

1. Preparation: Warm the engine slightly to reduce oil viscosity, then drain a small amount of oil to relieve pressure.
2. Removal: Unscrew the existing filter using an appropriate wrench. Allow residual oil to drip into a container.
3. Inspection: Check the gasket and housing for wear or damage; replace if necessary.
4. Installation: Align the new MANN‑FILTER WK 940/15 with the threaded port, ensuring the gasket faces the correct direction. Tighten to manufacturer torque specifications (typically 25 Nm).
5. Refill & Test: Refill the engine with fresh oil, start the engine, and monitor for leaks or abnormal pressure readings.

Maintenance Guidelines

• Inspect the filter housing and gasket annually; replace if cracked or warped.
• Follow the manufacturer’s recommended oil change interval, which often aligns with the filter’s service life (typically 12,000 km or 12 months).
• Avoid using incompatible oils that may degrade the synthetic media.

Performance Highlights

Field tests on commercial fleets have demonstrated:

• Reduced Oil Consumption: Up to 15% lower oil loss compared to standard filters.
• Improved Engine Efficiency: Consistent lubrication leads to smoother operation and reduced fuel consumption.
• Extended Filter Life: Maintains low pressure drop over extended periods, allowing for longer intervals between changes.

Why Choose MANN‑FILTER?

MANN‑FILTER is a globally recognized brand synonymous with quality and reliability in automotive filtration. The WK 940/15 embodies the company’s commitment to:

• Rigorous testing under real-world conditions.
• Use of premium materials that resist degradation.
• Designs that prioritize both performance and ease of service.

Conclusion

The MANN‑FILTER Oil Filter WK 940/15 stands out as a dependable, high-performance solution for commercial vehicles requiring robust engine protection. Its advanced filtration media, durable construction, and compatibility with a broad range of heavy-duty engines make it an essential component for fleet operators seeking to maximize uptime and minimize maintenance costs.