3500022 Immersion Heater for Cummins $114.98 Quantity discounts available QuantityPrice Quantity -+ Add to Cart Details 2007 ISB 6.7L & QST (6.7L & 4.5L)ISB, QSB Series (3.9L & 5.9L 4/6 cyl.), (Encore)Watts: 750Volts: 120Diameter: 3/4" NPTInstalls in 3/4" NPT Port to ... Details Back Details2007 ISB 6.7L & QST (6.7L & 4.5L)ISB, QSB Series (3.9L & 5.9L 4/6 cyl.), (Encore)Watts:750Volts:120Diameter:3/4" NPTInstalls in 3/4" NPT Port to Rear of Oil Cooler