The Caterpillar C6.6 is a 6.6L inline six-cylinder diesel engine offering stable performance and fuel economy. It was widely used in Cat medium-duty construction machinery (especially the 320D excavator) from the 2006 to the 2010s and is a key representative engine in Caterpillar's mid-power segment.
Typical Applications
Construction Machinery
Cat 320D/323D Series Hydraulic Excavators
Medium Loaders, Motor Graders, Rollers
Industrial Equipment
Mobile Generator Sets
Pumps, Compressors
Agricultural and Forestry Machinery
Tractors, Combines, and Logging Equipment
Features
High durability: Inherits Cat industrial engine design philosophy, specifically developed for high-intensity operating conditions.
Wide power range: Covering power from 150–275 hp, suitable for medium-duty construction machinery and industrial applications.
High fuel efficiency: High-pressure common rail fuel system and turbocharger improve combustion efficiency.
Frequently Asked Questions
Q1: What is your main products?
A1: We are specialized in the excavator engine spare parts, for example Main cylinder block, cylinder head, crankshaft, Engine assembly, piston, cylinder liner, piston ring, camshaft, connecting rod, oil pump, water pump, valve series products, movement, etc. almost all parts of the entire engine.
Q2: If I only know the excavator model, but can not offer parts No., what should I do?
A2: If possible, you can send us pictures of old products, name plate or the size for reference.
Q3: Can you accept sample order?
A3: Yes sure. We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.
Q4: Do you test all your goods before delivery?
A4: Yes, we have 100% test before delivery.
Q5: How can I do if there is something wrong with the items?
A5: Our products have been professionally tested and the quality is very stable. If you really found something wrong, please contacts. We have a professional after-sales team to help you solve the problem.