Era: 1966 to present

• Upgraded tooling
• Celcon handrails
• Separately applied wire grab irons
• Window glazing
• Separately applied air tanks
• Operating headlights utilizing microbulbs
• DCC ready using Quick Plug technology with 8 and 9 pin plugs

• Prototype specific details, such as:

• Headlights • Grilles
• Fuel tank (plastic) • Fans
• Battery Access Doors • Air horn
• Bell • Electrical Cabinet / Air Filter Box
• Truck sideframes • Snow plow
• "L" window where appropriate
• High or low nose
• McHenry® scale knuckle spring couplers