Donaldson Filtration P635980 Safety Air Filter Obround

The Donaldson P635980 is a safety air filter designed specifically for heavy-duty engine applications. This obround-style filter serves as a critical backup to the primary air filter while protecting the engine during primary filter servicing operations.

Key Features:

• Acts as a backup filter in case of primary filter damage or improper installation
• Prevents contaminants from entering the clean side of the air intake system during primary filter servicing
• Designed to plug rapidly if contamination bypasses the primary filter, alerting operators to potential issues
• High-efficiency media promotes longer service life across a wide range of heavy-duty applications
• Compatible with Mann+Hummel Picoflex CF2864 air cleaner systems

Specifications:

• Length: 10.80 inches (274.3 mm)
• Width: 8.20 inches (208.3 mm)
• Height: 1.89 inches (47.9 mm)
• Style: Obround
• Type: Safety Filter
• Weight: 0.95 lbs (0.43 kg)

Donaldson recommends replacing safety filters with every third primary filter change unless there has been a failure of the primary filter. This ensures optimal engine protection and maintains peak efficiency in trucks, buses, and other commercial vehicles.