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Donaldson · Filtration
P119778
In stock · ships from Knoxville
The Donaldson P119778 is a safety (secondary) air filter that fits inside your primary air filter housing.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
We don't publish fitment for this part yet. Rather than guess, get it confirmed against your truck in under a minute.
It acts as a backup to catch dirt if the primary filter is damaged or during filter replacement, protecting your engine from contamination. It's also designed to plug quickly if debris gets past the primary, alerting you to an intake system issue. Replace this safety filter every third primary filter change, or right away if the primary has failed.
Part Number: P119778
AIR FILTER SAFETY
Dealer: Knox Trailers
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