Cummins is a leading manufacturer of diesel and natural gas engines for various industries, including transportation, construction, agriculture, marine, and power generation. The company has produced several engine series, including the B, C, L, M, N, X, and K series. Here’s a comparison of each series:

 

• Cummins B Series:

• Engine size: 3.9L to 6.7L

• Year started: 1984

• Applications: light-duty trucks, buses, construction equipment, marine, and agriculture

• Features: 4-cylinder and 6-cylinder configurations, turbocharged, electronically controlled fuel injection

• Cummins C Series:

• Engine size: 8.3L 

• Year started: 1985

• Applications: medium-duty trucks, buses, construction equipment, marine, and power generation

• Features: 6-cylinder configuration, turbocharged and aftercooled, electronically controlled fuel injection, advanced electronic control system (ECS)

• Cummins L Series:

• Engine size: 9L to 10L 

• Year started: 1982

• Applications: heavy-duty trucks, buses, construction equipment, marine, and power generation

• Features: 6-cylinder configuration, turbocharged and aftercooled, electronically controlled fuel injection, ECS with enhanced diagnostic capabilities

• Cummins M Series:

• Engine size: 11L 

• Year started: 1994

• Applications: heavy-duty trucks, buses, construction equipment, marine, and power generation

• Features: 6-cylinder configuration, turbocharged and aftercooled, electronically controlled fuel injection, ECS with advanced diagnostic capabilities

• Cummins N Series:

• Engine size: 14L 

• Year started: 1991

• Applications: heavy-duty trucks, buses, construction equipment.

• Features: 6-cylinder configuration, turbocharged and aftercooled, electronically controlled fuel injection, ECS with enhanced diagnostic capabilities

• Cummins X Series:

• Engine size: 12L – 15L

• Year started: 1998

• Applications: heavy-duty trucks, buses, construction equipment.

• Features: 6-cylinder configuration, turbocharged, electronically controlled fuel injection, ECS with advanced diagnostic capabilities, EGR technology, selective catalytic reduction (SCR) technology

• Cummins K Series:

• Engine size: 19L to 95L

• Year started: 1974

• Applications: power generation, mining, oil and gas, marine, and locomotive

• Features: 6 through 16 cylinder configuration, turbocharged and aftercooled, electronically controlled fuel injection, ECS with advanced diagnostic capabilities, SCR technology, modular common-rail fuel system

 

Overall, each Cummins engine series has its unique features, applications, and benefits. The B series is best suited for light-duty applications, while the C and L series are more suitable for medium- to heavy-duty applications. The M and N series offer even more power and efficiency, and the X series features advanced emissions control technologies. Finally, the K series is designed for industrial and heavy-duty applications, with a focus on fuel efficiency and low emissions.