Cummins Original Filter Element AF25278 AF872 AF928 AF478 890 Fleetguard

Cummins Engine Filter Elements

Overview

Cummins engine filter elements are crucial for maintaining engine performance and longevity. They include the following components:

1. Air Filter

• Function: Blocks dust particles, ensuring smooth air intake for optimal engine performance in both low and high-temperature environments.
• Maintenance:
  • Only the external filter element can be purged; the safety filter element should not be purged.
  • Purging air pressure should be below 0.5 MPa.
  • Replace the safety filter element after three purging cycles.

2. Oil Filter

• Function: Removes impurities from the oil, ensuring the engine operates smoothly.
• Features: High filtration accuracy, low flow resistance, and long service life.
• Replacement Steps:
  • Clean the area around the oil filter seat.
  • Discard the old filter element and O-ring seal after removal.
  • Install the new filter with clean oil and tighten according to the specified torque.

3. Fuel Filter

• Function: Ensures fuel purity and improves combustion efficiency.
• Replacement Steps:
  • Remove and discard the old filter element and O-ring in a clean area, away from flammable materials.
  • Avoid pre-injecting fuel into the new filter element.
  • Lubricate the new O-ring with clean oil before installation and tighten according to technical specifications.

4. Oil-Water Separator

• Function: Effectively separates oil and water in the fuel, protecting the engine from damage.
• Maintenance:
  • Discharge water and sediment from the fuel filter and oil-water separator daily.
  • Replace regularly according to the maintenance cycle for Cummins models.

5. Water Filter

• Function: Purifies the water quality in the cooling system and slowly releases granular DCA for added protection.
• Benefits: Prevents scale formation, ensuring the cooling system operates normally.
• Replacement: Should be replaced each time the antifreeze is maintained or changed.