PAI LST-3632 Stop Light Switch Replacement for Freightliner FSC1749-1121 Turn Signal Fits heater coolant lines on

Fits heater coolant lines on Class 8 trucks and commercial buses with 3/4" heater hose

7L (1998 – 2003 HEUI)

and Cat C-series generator sets specifying the 326-1641 Advanced Efficiency primary fuel filter

Freightliner M2

Cummins QSM

PAI LST-3632 Stop Light Switch Replacement for Freightliner FSC1749-1121 Turn Signal Fits heater coolant lines onThe PAI LST 3632 is a normally open pneumatic stop light switch that replaces Freightliner FSC1749 1121 and the Mack 1MR3359 1MR2413 family. The switch closes at 4 psi of supply pressure, completing the brake light circuit whenever the air brake service line is pressurized. Coated 1 8 in 27 NPT brass body with 2 pin circular connector. Specifications Manufacturer PAI Industries Part Number LST 3632 Part Type Stop Light Switch (Pneumatic, Normally