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PAI · Electrical & Lighting
FSW-0527
In stock · ships from Knoxville
This is an engine oil pressure switch for Mack diesel engines.
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 is a normally closed switch that opens (breaks the circuit) when oil pressure drops below 10 PSI, triggering a warning light or buzzer. The switch threads into a 1/8" NPT port and uses a single spade terminal. You replace it when the original switch fails to accurately report low oil pressure, causing false warnings or no warning at all.
Part Number: FSW-0527
SWITCH, MAK1MR3319A
Unit: ea
Vendor: PAI Industries
Dealer: KP Services Crossville
Compatibility, alternatives, and more
Parts commonly needed alongside electrical & lighting
