Cummins Full Series Construction Machinery Engines
Cummins offers a full range of turbocharged diesel engines, including models such as A2300, B3.3, QSF2.8, F3.8, QSB3.9, 6BT5.9, QSB5.9, B4.5, QSB4.5, B6.7, QSC8.3, QSL8.9, ISL9.5, M11, NTA855, QSX15, and the K series. Cummins engines are characterized by strong low-speed torque, excellent overload capacity, stable operation, low failure rate, and long service life. They are suitable for various harsh working conditions in mining, road construction, and municipal engineering, and are fully compatible with excavators, loaders, road rollers, graders, bulldozers, concrete equipment, and mining trucks.
1. Excavator Cummins Engine Series（1–90Ton）
Mini & Small Excavator (1–10 Ton)
QSF2.8 – 2.8L compact turbo engine, low vibration, for 1–6 ton mini excavators
F3.8 – 3.8L high-efficiency Stage V emission engine for 6–10 ton small excavators
Medium Excavator (12–30 Ton)
B4.5 – 4.5L stable power engine for 12–15 ton medium excavators
B6.7 / B6.7CS4 – 6.7L mainstream high-torque engine for 20–30 ton excavators (most popular)
QSB5.9 / 6BT5.9 – 5.9L classic golden engine for 20-ton mainstream excavators, mature and stable, widely used in global engineering machinery
Medium & Large Excavator (30–50 Ton)
QSL8.9 – 8.9L heavy-duty engine for 30–40 ton large excavators
M11 / QSM11 – 11L high-power engine for 40–50 ton heavy excavators
Large & Mining Excavator (50Ton+)
QSX15 – 15L super large displacement engine for 50–70 ton mining excavators
QSK19 / QSK50 – Heavy-duty mining engine for 80–90 ton ultra-large excavators
2. Wheel Loader Cummins Engine Series（1–12Ton）
B4.5 – 4.5L engine for 1–3 ton small wheel loaders
B6.7 – 6.7L high-torque fuel-saving engine for 3–6 ton medium loaders
QSB5.9 – 5.9L classic high-reliability engine for 5–7 ton large wheel loaders
QSL8.9 – 8.9L heavy-load engine for 6–8 ton large wheel loaders
M11 / QSX15 – 11L/15L super power engine for 10ton+ mining heavy loaders
3. Road Roller Cummins Engine Series
QSF2.8 / F3.8 – Low vibration stable engine for 2–8 ton small road rollers
B6.7 – High-torque engine for 10–14 ton medium full hydraulic rollers
QSL8.9 – Heavy-duty impact-resistant engine for 16–26 ton large compaction rollers
4. Motor Grader Cummins Engine Series
B6.7 – Standard matching engine for 160/180hp motor graders
QSL8.9 / M11 – High-power engine for 200hp+ heavy-duty motor graders
5. Bulldozer Cummins Engine Series
B6.7 – Power engine for small & medium bulldozers
QSL8.9 – Main power for medium and large engineering bulldozers
M11 / QSK19 – Super high-power engine for large mining bulldozers
6. Air Compressor & Pump Machinery
QSF2.8 – Compact dedicated engine for portable air compressors
F3.8 / B4.5 – Industrial stable engine for mobile water pumps and large flow equipment
7. Crane & Aerial Work Machinery
B6.7 – Reliable engine for truck-mounted cranes & aerial work platforms
QSL8.9 / M11 – Heavy-duty engine for large mobile cranes and lifting equipment
8. Cummins Engine Models
Light & Small Displacement Series
A2300 – 2.3L ultra-compact diesel engine, for mini equipment, small pumps, light compactors
B3.3 – 3.3L classic small engine, widely used in 5–8 ton excavators and small loaders
QSB3.9 – 3.9L mid-small high-reliability engine for 8–12 ton construction machinery
QSB4.5 – Upgraded version of B4.5, Stage IV/EPA compliant for medium excavators
Medium Displacement Mainstream Series
6BT5.9 / QSB5.9 / B5.9 – 5.9L classic golden displacement engine, the most mainstream power for 20-ton class excavators, loaders, graders and road rollers. Multiple power versions (C150/C180/C210), stable torque, ultra-high market retention rate
QSC8.3 – 8.3L classic heavy-duty engine, widely matched for old and medium-large loaders & graders
ISL9.5 – 9.5L new generation high-efficiency engine for 30–45 ton excavators
QSC8.3 – 8.3L classic heavy-duty engine, widely matched for old and medium-large loaders & graders
ISL9.5 – 9.5L new generation high-efficiency engine for 30–45 ton excavators
Heavy & Mining Displacement Series
NT855 / NTA855 – Classic 14L heavy-duty engine, standard for large bulldozers and mining machinery
K19 / K38 / K50 – Full mining series, for ultra-large excavators, dump trucks and mining equipment
QSK23 / QSK38 – Super large displacement low-speed high-torque mining engines
9. Complete Construction Machinery Matching List
Dump Truck & Mining Truck
ISL9.5 / M11 / QSX15 / K38 – Full power coverage for engineering and mining trucks
Concrete Mixer & Pump Truck
B6.7 / QSL8.9 / M11 – Special engines for mixers and concrete pump trucks
Marine & Industrial Power
QSF2.8 / B3.3 / QSL8.9 / K19 – Industrial generator set and marine auxiliary engine