MCI D4000CL / D4500CL
- Overall Length: 40′: 40.5 ft
- Overall Length: 45′: 45.42 ft
- Overall Width: 102 in
- Overall Height: 11 ft 5 in
- Wheelbase: 40′: 279 in
- Wheelbase: 45′: 318 in
- Weight: 40′: 33,000 lb
- Weight: 45′: 48,000 lb
- GVWR: 40′: 46,000 lb
- GVWR: 45′: 48,000 lb
- Engine: Detroit Diesel Series 60, 400 hp, DDEC IV, 12.7 liter
- Engine: Caterpillar: C-12
- Transmission: Automatic: Allison B500, 6-speed with optional retarder
- Brakes: Service: Meritor Q Plus™ with Meritor automatic brake slack adjusters
- Brakes: Emergency: MGM Spring brake on drive axle
- Electrical: 24 volt negative ground (Front headlights – dual halogen – 12 volt lamps)
- Air Conditioning: 6 cylinder compressor, driven by a self adjusting belt drive off the main engine.
- Seats: 40′: 47 passenger recliners with restroom
- Seats: 45′: 55 passenger recliners with restroom
- Parcel Racks: 40′: Inside parcel racks – 103.75 cu. ft
- Parcel Racks: 45′: Inside parcel racks – 109 cu. ft.
- Luggage Compartment: 40′: Underfloor enclosed compartments – 326 cu. ft.
- Luggage Compartment: 45′: Underfloor enclosed compartments – 400 cu. ft.
- Fuel Tank: 192 gallon capacity
- Suspension: Air ride type, which operates automatically and maintains a constant ride height
- Steering: Ross integral power steering; trailing tag axle on 45′