Description
Aftermarket coolant level sensor (PAI 730411) for Peterbilt and Kenworth surge tank / radiator low-coolant circuits, supplied as a direct replacement for Peterbilt Q21-6030-004 (and earlier Q21-6030-001 / Q21-6024S). The 2-pin sensor threads into the surge tank or radiator filler boss and triggers the dash low-coolant warning when the float drops below the set point. 1/4 in – 18 NPT male thread, ~3.32 in overall length, rectangular Packard-style connector.
Specifications
| Manufacturer | PAI Industries |
|---|---|
| Part Number | 730411 |
| Part Type | Coolant Level Sensor |
| Application | Peterbilt / Kenworth (Paccar) |
| OEM Reference | Peterbilt Q21-6030-004 |
| Thread | 1/4 in – 18 NPT (male) |
| Connector | 2-pin rectangular |
| Overall Length | 3.32 in |
| Housing | White / gold / silver |
Cross References
This sensor replaces or is equivalent to the following part numbers:
- Peterbilt: Q21-6030-004 (current), Q21-6030-001, Q21-6024S
- Kenworth: Q21-6030-004
- Newstar: S26688
- Saginaw: Q21-6005
- Dorman: 904-7632
- Automann: AM57759506
- Also known as: Q216030004, 5022-02187-04
Applications
This coolant level sensor fits the following chassis:
- Peterbilt 348, 365, 367, 384, 389, 567, 579 (2014-2017+)
- Kenworth T660, T680, T700, T800, T880, W900 (2014-2017+)
- Other Paccar-platform chassis using the Q21-6030 surge-tank sensor
Verify your surge tank / radiator boss thread and the existing OE part number on the sensor flat before ordering.
