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Ships within 48 hours · Estimated delivery Aug 26 - Aug 31
replacing service numbers 455-5007
and existing valve part number before ordering to confirm fitment
Fuel-system DTCs in the ECM
Business Class M2
4722001601
Replacement Fan Override Switch For Peterbilt 79PSL3-4 Elemax replacing service numbers 455-5007Aftermarket fan override pressure switch for Peterbilt and Kenworth A C systems, replacing 79PSL3 4, P27 1051, MEI Air Source 1310, and Red Dot RD5 4625 0. Normally closed switch opens at 310 psi and closes at 240 psi for R134a refrigerant, with a 2 pin connector and female M10 1. 25 mounting thread. Signs You Need a New Fan Override Switch A C system fails to maintain cabin temperature on hot days Engine fan does not engage during high pressure A C
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