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Donaldson · Filtration
P158678
In stock · ships from Knoxville
The Donaldson P158678 is a safety (secondary) air filter element used in heavy-duty diesel engine intake systems.
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Caterpillar
Caterpillar
Designed as the safety filter for air cleaners that use the Caterpillar 8N4901 primary element. Cross-references confirm use across a wide range of Caterpillar engines and likely other heavy-duty equipment employing that filter size.
Part data verified against 5 catalog sources
Numbers this part supersedes or interchanges with. Showing 16 of 19.
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It fits inside the primary air filter to capture any dirt, dust, or debris that might bypass or be introduced during filter servicing, protecting the engine from abrasive contaminants. Typically replaced every third primary filter change or when it appears loaded with fines, this round safety filter ensures the engine always sees clean air. It measures approximately 4.78 inches outside diameter, 3.59 inches inside diameter, and 12 inches in length, and is tested to ISO 5011 standards.
Part Number: P158678
AIR FILTER,SAFETY
Category: Donaldson- F
Unit: ea
Dealer: KP Services Crossville
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