Original MANN-FILTER Oil Filter W 940/21 – For passenger cars

MANN‑FILTER Oil Filter W 940/21

The W 940/21 is a high‑performance oil filter engineered by MANN‑FILTER for passenger cars that demand reliable protection and optimal engine longevity. Designed to fit a wide range of modern engines, this filter delivers superior filtration efficiency while maintaining low resistance to oil flow.

Key Technical Specifications

• Filter Type: Wet‑scrubber cartridge with a pre‑filter and a main filter element.
• Thread Size: 3/4‑16 UNF (Unified National Fine), standard for many passenger car engines.
• Dimensions: Approx. 142 mm in length, ensuring compatibility with most engine bays without compromising space.
• Material Composition: Premium synthetic fibers and a high‑density filter media that capture particles as small as 0.5 µm.
• Flow Resistance: Low pressure drop (3 kPa) to preserve engine efficiency and fuel economy.
• Compatibility: Suitable for a broad range of vehicles, including models from Opel, Bedford, Vauxhall, Fiat, Ford, GM, and others that use the 3/4‑16 UNF thread.

Performance Highlights

The W 940/21 filter is engineered to remove up to 99.9% of contaminants from engine oil, protecting critical components such as bearings, pistons, and camshafts. Its multi‑layer design ensures that even the finest particles are trapped before they can cause wear or sludge buildup.

Because it maintains a low flow resistance, the filter allows the engine to operate at its optimal temperature range, reducing thermal stress on seals and gaskets. This contributes to longer engine life and improved fuel efficiency.

Installation & Maintenance

• Easy Installation: The standard 3/4‑16 UNF thread allows for quick screwing in of the filter without special tools.
• Seal Integrity: Equipped with a rubber gasket that ensures a leak‑free seal, preventing oil seepage during operation.
• Maintenance Interval: Recommended replacement every 10,000–15,000 km or as per the vehicle manufacturer’s service schedule. Regular checks help maintain optimal filtration performance.

Quality Assurance & Brand Heritage

MANN‑FILTER has a long-standing reputation for producing high‑quality automotive filters. The W 940/21 benefits from rigorous testing protocols, including:

• ISO 9001:2015 Certification: Ensures consistent manufacturing quality.
• ISO 14001:2015 Environmental Management: Demonstrates commitment to sustainable production practices.
• Extensive Field Testing: Real‑world performance data collected from diverse vehicle types and operating conditions.

Environmental Impact

The filter’s design incorporates recyclable materials where possible, reducing the environmental footprint. By extending engine life through superior protection, it also contributes to lower overall emissions over a vehicle’s lifetime.

Applications Across Vehicle Models

While the W 940/21 is not tied to any single brand, its thread size and performance make it an ideal choice for many passenger cars. Common applications include:

• Opel Ascona, Omega, Rekord, and Senator series.
• Bedford commercial vehicles adapted for passenger use.
• Vauxhall models with similar engine configurations.
• Fiat, Ford, GM, and other European passenger cars that employ the 3/4‑16 UNF thread.

Why Choose the W 940/21?

Choosing the MANN‑FILTER Oil Filter W 940/21 means opting for:

• Unmatched Filtration Efficiency: Protects engine components from wear.
• Consistent Flow Characteristics: Maintains engine performance and fuel economy.
• Reliability Across Diverse Conditions: Performs well in hot climates, dusty environments, and high‑speed driving scenarios.
• Trusted Brand Legacy: Backed by decades of automotive filter expertise.

Conclusion

The MANN‑FILTER Oil Filter W 940/21 stands out as a premium solution for passenger cars that demand reliable engine protection and efficient operation. Its combination of advanced filtration technology, low flow resistance, and broad compatibility makes it an essential component for maintaining vehicle performance and longevity.