We carry service manuals for Cummins 3.9 and 5.9 liter engines. For your convenience, you can access our inventory through the product links listed below.
If you do not see the B Series manual you need, please use our quote request form or call us at 855.470.3525: our friendly sales staff will gladly help you.
OPERATOR MANUAL - 4BT 3.9 / 6BT 5.9 ALL ENGINES
SERVICE MANUAL - ALL 4B & 6B SERIES ENGINES (1991 - PRESENT)
SERVICE MANUAL - B3.9 | B5.9 (1991 TO PRESENT)
OPERATOR MANUAL - 4BT 6BT 6CTA MARINE PROPULSION
OPERATOR MANUAL - 4BT 3.9 / 6BT 5.9 INDUSTRIAL ENGINES
SERVICE MANUAL - ALL 4B & 6B SERIES ENGINES (1991 & PRIOR)