Mann C 27 998/5 Air Filter, 267mm OD, 170mm ID, 420mm Height

Mann C 27 998/5 Air Filter

The Mann C 27 998/5 Air Filter is a high‑performance filtration solution engineered for heavy‑duty diesel engines, particularly those found in DAF trucks and other commercial vehicles. With an outer diameter of 267 mm, inner diameter of 170 mm, and a height of 420 mm, this filter is designed to fit seamlessly into the engine bay of models that require a robust, reliable air intake system.

Key Design Features

• Optimized Geometry: The precise OD/ID dimensions ensure maximum airflow while maintaining structural integrity under high pressure and temperature conditions.
• Durable Construction: Made from premium, heat‑resistant materials that resist abrasion, corrosion, and thermal shock, the filter can endure the demanding environments of long haul trucking.
• High Filtration Efficiency: Engineered to capture fine particulates down to sub‑micron levels, protecting the engine’s turbocharger and downstream components from harmful contaminants.
• Low Pressure Drop: The internal media layout balances filtration performance with minimal resistance to airflow, preserving engine efficiency and power output.

Compatibility and Application

The Mann C 27 998/5 is specifically tailored for DAF engines, but its robust design makes it suitable for a range of heavy‑duty diesel applications. It fits standard air intake manifolds that accommodate the 267 mm OD specification, ensuring a secure, leak‑free seal during operation.

Installation Guidelines

1. Preparation: Clean the mounting area to remove dust and debris. Verify that the filter housing is free of cracks or damage.
2. Positioning: Align the filter’s mounting flange with the engine bay’s intake manifold, ensuring proper orientation for airflow direction.
3. Securing: Tighten the mounting bolts to the manufacturer’s torque specifications. Use a calibrated torque wrench to avoid over‑tightening or under‑tightening.
4. Seal Check: Inspect the gasket and sealing surfaces for proper contact. Replace any worn gaskets before final tightening.

Maintenance Practices

Regular inspection of the air filter is essential to maintain engine performance and longevity. Follow these steps during routine maintenance checks:

• Visual Inspection: Look for visible dust accumulation, oil contamination, or physical damage.
• Pressure Test: Measure inlet pressure drop across the filter; a significant increase indicates clogging and necessitates replacement.
• Cleaning (if applicable): Some filter media can be cleaned with high‑pressure air or specialized cleaning solutions. Verify that the manufacturer recommends this procedure before attempting.
• Replacement Schedule: Adhere to a scheduled replacement interval based on operating conditions—typically every 12,000–18,000 km for heavy‑duty service, but adjust according to load and environmental factors.

Performance Benefits

Installing the Mann C 27 998/5 Air Filter delivers several tangible advantages:

• Engine Protection: By trapping fine particulates, it safeguards critical components such as turbochargers and fuel injectors from wear.
• Fuel Efficiency: A clean air supply reduces engine friction and improves combustion efficiency, potentially lowering fuel consumption.
• Reduced Emissions: Cleaner airflow contributes to more complete combustion, helping the vehicle meet stringent emission standards.
• Extended Service Life: Protecting internal components from contaminants translates into longer intervals between major overhauls.

Material Composition

The filter media is composed of a multi‑layered fibrous structure that combines high‑density fibers for particulate capture with low‑resistance pathways to maintain airflow. The housing and gasket materials are selected for their resistance to oil, heat, and mechanical stress.

Quality Assurance

Mann is renowned for rigorous testing protocols. Each C 27 998/5 unit undergoes:

• Dimensional verification against OEM specifications.
• Pressure drop testing under simulated operating conditions.
• Durability assessments, including thermal cycling and vibration exposure.

Environmental Considerations

The filter’s design supports compliance with environmental regulations by minimizing particulate emissions. Additionally, the use of recyclable materials in the housing aligns with sustainability initiatives within the automotive industry.

Conclusion

The Mann C 27 998/5 Air Filter exemplifies engineering excellence for heavy‑duty diesel engines. Its precise dimensions, durable construction, and superior filtration performance make it an indispensable component for operators seeking reliability, efficiency, and longevity in demanding commercial applications.