Prototype: Type JT42CWR diesel electric freight locomotive, better known as Class 66. CFL Cargo diesel locomotive.
Model: The locomotive has a digital decoder and extensive sound and light functions. It also has controlled high-efficiency propulsion with a flywheel, centrally mounted. 4 axles powered by means of cardan shafts. Traction tires. The triple headlights and dual red marker lights change over with the direction of travel, will work in conventional operation, and can be controlled digitally. The headlights at Locomotive Ends 2 and 1 can be turned off separately in digital operation. When the headlights are off at both ends, the Double 'A' Light function is on at both ends. The cab lighting can be controlled digitally. The control desk lighting can be controlled digitally. Maintenance-free, warm white and red LEDs are used for the lighting. The locomotive has a factory-installed smoke generator. It also has many separately applied details. The locomotive has detailed buffer beams. Brake hoses that can be installed on the locomotive are included. Length over the buffers approximately 24.7 cm / 9-3/4.

This model can be found in an AC version in the Märklin H0 assortment under item number 39066.