cab model rated at different rpm?

/ cab model rated at different rpm? #2  
May be it's because the air conditioner compressor requires HP to pump freon.
 

Marketplace Items

2021 CATERPILLAR 326 LONG REACH EXCAVATOR (A65053)
2021 CATERPILLAR...
2016 INTERNATIONAL PROSTAR 6X4 T/A DAY CAB TRUCK TRACTOR (A67147)
2016 INTERNATIONAL...
Club Car Emergency Cart (A64557)
Club Car Emergency...
2009 BOBCAT T190 SKID STEER (A65053)
2009 BOBCAT T190...
Landoll Tilloll Soil Finisher (A66285)
Landoll Tilloll...
Walk behind Mower (A64194)
Walk behind Mower...
 
Top