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PAI Industries · Probes & Sensors
730411
In stock · ships from Knoxville
This is a coolant level sensor, also sold under the OEM number Q21-6030-004, that monitors the fluid level in the surge tank or radiator.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
Verified fitment for 13 applications
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All confirmed applications for this part number.
Kenworth
Peterbilt
Kenworth
Peterbilt
Verify your surge tank or radiator boss thread (1/4"-18 NPT) and the existing OE part number on the sensor flat before ordering. Other Paccar-platform chassis using the Q21-6030 surge-tank sensor may also be compatible.
Part data verified against 4 catalog sources
Numbers this part supersedes or interchanges with. Showing 10 of 10.
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It screws into a threaded boss and uses an internal float to detect when coolant drops too low, triggering a dash warning light. The sensor is commonly replaced when the old one fails, causing a false low-coolant alarm or failing to alert you to actual low coolant. Made by PAI Industries, it serves as a direct plug-and-play replacement for several Peterbilt and Kenworth models.
Part Number: 730411
COOLANT LEVEL SENSOR /PAI
Vendor: PAI Industries
Dealer: KP Services Crossville
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