Cummins Engine Service Repair Manual

 IS (Interact Series) - family of engines used for on-highway applications, trucks, buses and RVs

ISF 2.8-liter I4 - used in GAZ GAZelle (Business and Next series) and Foton Tunland light trucks

ISV 5.0-liter V8 - used in the 2016 and newer Nissan Titan XD truck, up to 2019 model-year[21]

ISB 5.9-liter I6, 190 HP - used in first, second, and third generation Ram 2500 and 3500 trucks until 2007

ISB 6.7-liter I6 - used in third and fourth generation Ram 2500-5500 trucks, medium duty trucks, such as Freightliner and International. Used in Kenworth and Peterbilt called the Paccar PX6 or PX7.

ISC 8.3-liter I6 - discontinued

ISL 8.9-liter - I6 - used for a variety of applications, and a very common engine for buses

ISL G 8.9-liter - I6 natural-gas-powered; used for a variety of applications

ISM 11-liter I6 - used for a variety of vocational applications in lesser regulated areas

ISG 12-liter I6 - used primarily in Chinese HD trucks

ISX 12-liter I6 - used in heavy-duty trucks

ISX G 12-liter I6 - natural-gas-powered; used in heavy-duty trucks

ISD 12.4-liter I6 - used in tractor applications in lesser regulated areas

ISX 15 liter I6 - used in heavy-duty trucks

V555 9.1-liter V8 - used in heavy machinery and large trucks[22]

V903 14.8-liter V8 - used in Bradley fighting vehicles and other military applications

QS (Quantum Series) - family of engines used for off-highway applications, such as marine, rail/industrial, construction, power generation and agriculture

QSF 2.8-liter I4

QSF 3.8-liter I4

QSB 4.5-liter I4

QSB 6.7-liter I6

QSL 9-liter I6

QSG 12-liter I6

QSX 15-liter I6

QSK 19-liter I6

QSK 23-liter I6

QST 30-liter V12

QSK 38-liter V12

QSK 45-liter V12

QSK 50-liter V16

QSK 60-liter V16

QSK 78-liter V18

QSK 95-liter V16

X Series (Next-Generation) - evolution of IS engine family

X12

X15 Performance 15-liter I6

X15 Efficiency 15-liter I6