The Caterpillar C3.3B engine family is a compact industrial diesel platform widely used in construction, material handling and hydraulic-demand equipment. The lineup includes direct injection and common rail variants designed for compact equipment applications requiring strong low-end torque, fuel efficiency and Tier 4 Final compatibility.
Caterpillar C3.3B CR and DI engines are commonly used in compact track loaders, skid steer loaders, utility construction equipment and industrial hydraulic applications where compact packaging, cooling efficiency and dependable hydraulic performance are important.
Compatibility should always be verified against serial prefix, ECU calibration, emissions configuration, flywheel housing, manifolds, cooling package, mounts and accessory drive layout. Common rail C3.3B CR variants commonly use arrangement number 345-3550, while direct injection variants may use arrangement number 380-1769 depending on machine configuration and emissions package.
Common machine applications that use Cat C3.3B common rail injection engine include Cat 246D3, 246D,236D, 236D3, 262D3, 262D, 289D3, 289D, 259D3, 259D, 257D, 257D3, 242D, 242D3, 277D, 279D, 279D3, 287D, 289D3, 289D & C3.3B Direct injection version is used Cat 246D and 236D compact track loaders along with tracked loaders and compact industrial equipment platforms used in grading, loading, material handling, utility work and hydraulic attachment operation.
Cat C3.3B DI engine for sale. The engines in the following video are direct injection engines.
The engine in the video below is a common rail injection C3.3B engine.
Cat C3.3B CR engine for Cat 259D, 308 CR, 308E2, 305C CR, 305E2, 305.5E, 303CR, 309CR, 303CR