Description Additional Info Product Reviews Fan Clutch Hub diameter: 2.56in Fan Pilot diameter: 5in Height: 4.19in Maximum Fan diameter: 26in Mack E7 Engine application Cross References:17456-1, 38MH318, 38MH318M, 38MH414M, RV0420100-00, 3MH414M, 25159667 UPC: 193807258580 Mfr Part Number: 1645B Description: VOLVO MACK VISCOUS FAN CLUTCH NEW