Caterpillar Full Series Construction Machinery Engines
Caterpillar full-series turbocharged diesel engine, covering mainstream models including C1.1, C1.7, C2.2, C3.6, C4.4, C6.4, C6.6, 3066, C7.1, C9.3B, C13B, C13D, C15, C18, C27, C32 and 3500 series. Featuring exclusive ACERT combustion technology, ultra-strong low-speed torque, stable operation, low failure rate and long service life, Caterpillar series engines adapt to all kinds of extreme mining and heavy-load construction conditions, widely used in excavators, loaders, road rollers, graders, bulldozers and other engineering equipment.
1. Excavator Caterpillar Engine Series（1–90Ton）
Mini & Small Excavator (1–8 Ton)
C1.1 / C1.7 – Ultra-compact low-noise diesel engine for 1–3 ton mini excavators
C2.2 / C3.6 – High-efficiency low-emission engine for 4–8 ton small excavators
3054C – Classic durable small-displacement engine for 6–8 ton CAT small excavators
Medium Excavator (12–25 Ton)
3066 / 3066T – 6.4L classic turbo engine, standard power for CAT320C/320D 20-ton excavators
C6.4 ACERT – 6.4L inline 6-cylinder turbo engine for early CAT320D medium excavators, stable overload performance
C6.6 ACERT – 6.6L upgraded fuel-saving engine for 20–25 ton modern medium excavators
C4.4 ACERT – Reliable low-fuel engine for 12–15 ton medium excavators
C7.1 ACERT – 7.1L high-torque mainstream engine for 20–25 ton excavators
3056 / 3116 – Classic mature medium-displacement engines for old-generation medium excavators
Medium & Large Excavator (30–40 Ton)
C9.3 / C9.3B – Upgraded high-power engine for 30–35 ton large excavators (CAT336/340GC)
C13B / C13D – 13L heavy-duty turbo engine for 35–40 ton large excavators (CAT345/349GC)
C15 – High-stability heavy-load engine for 40–45 ton excavators
Large & Mining Excavator (45Ton+)
C18 – Super high-torque engine for 50–70 ton mining excavators
C27 / C32 – Ultra-large displacement mining engines for 80–90 ton heavy mining excavators
3508 / 3512 / 3516 – 3500 series top-tier mining engines for super-large mining excavators
2. Wheel Loader Caterpillar Engine Series（1–12Ton）
C3.6 – Compact high-efficiency engine for 1–3 ton small wheel loaders
C4.4 – Stable power engine for 3–5 ton medium wheel loaders
3066 / C6.4 / C6.6 – Classic high-reliability engines for 5–7 ton large wheel loaders
C7.1 – High-torque fuel-saving engine for 6–8 ton large wheel loaders
C9.3B / C13B – Heavy-load engine for 8–10 ton mining wheel loaders
C15 / C18 – Super power engine for 12ton+ heavy mining loaders
3306 – Legendary heavy-duty engine for large classic loaders
3. Road Roller Caterpillar Engine Series
C2.2 / C3.6 – Low vibration stable engine for 2–6 ton small road rollers
C4.4 – Balanced power engine for 6–10 ton medium road rollers
3066 / C6.4 / C6.6 – High-torque impact-resistant engines for 10–14 ton full hydraulic rollers
C7.1 / C9.3B – Heavy-duty durable engines for 16–26 ton large compaction rollers
4. Motor Grader Caterpillar Engine Series
C6.4 / C6.6 – Classic standard engines for 160/180hp medium motor graders
C7.1 – Mainstream matching engine for 200hp class motor graders
C9.3B / C13B – High-power engine for 220hp+ heavy-duty mining motor graders
3306 – Traditional heavy-duty engine for large old-generation graders
5. Bulldozer Caterpillar Engine Series
C7.1 – Power engine for small & medium CAT bulldozers
C9.3B / C13B – Main power for medium and large engineering bulldozers
3126B / 3306 – Classic heavy-load engines for large bulldozers
C15 / C18 / C27 – Super high-torque engines for mining bulldozers
6. Air Compressor & Pump Machinery
C1.7 / C2.2 – Ultra-compact dedicated engine for portable air compressors & small pumps
C3.6 / C4.4 – Industrial stable engine for mobile water pumps and medium flow equipment
3066 / C6.4 – High-stability engine for large-flow industrial pump machinery
7. Crane & Aerial Work Machinery
C4.4 / C7.1 – Low-failure reliable engine for truck-mounted cranes & aerial work platforms
C6.4 / C6.6 – Classic medium heavy-duty engine for common mobile cranes
C9.3B / C13B – Heavy-load engine for large mobile lifting equipment