Athearn Roundhouse 3331 HO EMD F7A Diesel Locomotive Maine Central #681

LOCOMOTIVE FEATURES: 
• New body tooling - Based on EMD F7A “Phase I 
Early”- one of the most common versions produced!
• Revised frame with heavy die cast weight and 
provision for 21-pin DCC decoders 
• Revised body-to-chassis mounting simplifies 
disassembly and allows for easier kit-bashing into deskirted versions
• New rear coupler mounting box with two mounting 
locations for close-coupling or easier running on tightradius curves
• Flush-fitting cab, porthole, and rear window glass
• Improved All-wheel electrical pickup with two wires to 
each truck provides reliable current flow•
Single or dual headlight per prototype
• Separately-applied horns
• McHenry operating scale knuckle couplers
• All-wheel drive with precision gears for smooth and quiet 
operation
•     5-pole motor with precision-machined flywheels and multilink drive train for trouble free operation
• Wheels with RP25 contours operate on all popular brands 
of track
• Fully-assembled and ready-to-run out of the box
• Painted and printed for realistic decoration
• Highly-detailed, injection-molded body
• Minimum radius: 18”