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Chelsea · Probes & Sensors
379502
In stock · ships from Knoxville
The Chelsea 379502 is a pressure switch for heavy-duty power take-off (PTO) units, specifically the 276, 277, and 280 series.
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Verified fitment for 3 applications
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All confirmed applications for this part number.
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Verify PTO model and thread size before ordering. Widely used on various heavy-duty trucks equipped with these PTO series.
Part data verified against 5 catalog sources
Numbers this part supersedes or interchanges with. Showing 1 of 1.
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It monitors hydraulic pressure inside the PTO to confirm proper engagement or to trigger a warning when pressure drops. A failing switch can cause intermittent PTO operation, a non‑functional PTO, or a dashboard warning light. Replacing this switch restores reliable PTO control and safety monitoring.
Part Number: 379502
PRESSURE SWITCH
Unit: ea
Dealer: Post Onsite
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