Intermittent Greyhawk AC with working fan indicates compressor clutch cycling. Check refrigerant level, clutch engagement, and voltage at the clutch coil. Low refrigerant is the most common cause.
Coleman Mach motor replacement with different shaft length needs wheel position adjustment, shaft coupler, or careful shaft trimming. Use puller to remove stuck blower wheel, never pry.
Country Coach radiator fan depends on chassis and engine type. Source from heavy truck dealers like FleetPride, Beaver Coach Sales, or engine OEM. Get VIN and engine info before ordering. Consider professional installation.
The Cummins 6.7 fan hub bolt shearing is a known issue on Freightliner chassis motorhomes. Prevent it with regular bolt inspection, red Loctite, proper torque, and upgraded Grade 12.9 hardware.