The P550920 Lube Oil Filter from Donaldson is a high‑performance spin‑on full‑flow lube filter engineered to remove contaminants from engine oil, ensuring clean lubrication for critical engine components. Designed with a full‑flow filtration system, it delivers reliable protection by capturing harmful particles and maintaining oil cleanliness under demanding operating conditions. Equipped with both bypass and anti‑drainback valves, the P550920 helps preserve oil flow during start‑up and peak loads, reducing wear and extending engine life in heavy‑duty applications.

Specifications

Model: P550920
Filter Type: Lube Oil Filter — Spin‑On Full‑Flow
Thread Size: M24 x 1.5
Outer Diameter: 3.66 in (93 mm)
Length: 7.87 in (200 mm)
Gasket Inner Diameter: 2.44 in (62 mm)
Gasket Outer Diameter: 2.83 in (72 mm)
Filtration Efficiency: 99% at 26 microns (ISO 16889)
Media Type: Cellulose
Bypass Valve: Yes (helps prevent restriction during high‑pressure conditions)
Anti‑Drainback Valve: Yes (maintains oil in system during shutdown)
Primary Cross Reference: Caterpillar 2698325

Applications

The P550920 Lube Oil Filter is ideal for:

Heavy‑duty diesel and petrol engines
Commercial trucks and fleet vehicles
Construction and earth‑moving machinery
Agricultural tractors and equipment
Industrial engines and compressors
Equipment requiring reliable oil lubrication protection under heavy loads
Engines compatible with Caterpillar cross references