Identifying the Alternator & Serpentine Belt on the QSB 5.9
Which serpentine belt do I need on my Cummins Marine QSB 5.9 engine? Identifying the Alternator on the QSB 5.9
Cabin Heater & Water Heater Connection Ports for QSB 6.7 & QSB 5.9
QSB 6.7 and QSB 6.7 Slimline Heater Supply Connection. Use coolant return elbow behind alternator for return connection.