The Cub Cadet Big Country 6×4 Utility Vehicle Model 640 is a robust and versatile UTV designed for heavy-duty tasks and challenging terrains. This model features a powerful Honda 20 HP, 4-cycle gas engine that delivers a maximum torque of 32.5 lb-ft at 2500 rpm. With a displacement of 37.5 cubic inches (614cc), the engine is built for efficiency and durability, ensuring reliable performance across a range of applications.
The vehicle’s dimensions are designed to balance stability and maneuverability, with an overall length of 110.4 inches and a width of 65 inches. The high-back seats accommodate two passengers comfortably, and the vehicle boasts a payload capacity of 1,400 pounds, making it suitable for transporting heavy loads. The towing capacity stands at 1,200 pounds, further enhancing its utility.
Cub Cadet 640 Big Country 6×4 Engine Specs
| Engine Make | Honda ** | Kohler |
| Engine Power | 20 hp | 20 hp |
| Maximum Torque | 32.5 lb-ft @ 2500 rpm | 32.6 lb-ft @ 2600 rpm |
| Engine Type | 4-Cycle Gas | 4-Cycle Gas |
| Cylinders | 2 | 2 |
| Valves | Overhead | Overhead |
| Engine Displacement | 37.5 cu. in. (614 cc) | 38 cu. in. (624 cc) |
| Ignition | Transistor Controlled | Transistor Controlled |
| Lubrication | Full Pressure | Full Pressure |
| Oil Filter | Replaceable (standard) | Replaceable (standard) |
| RPM, idle (no load) | 1400 rpm | 1250 rpm |
| RPM, fast (no load) | 3850 rpm | 3950 rpm |
| Cooling System | Air | Air |
| Air Cleaner | Heavy Duty, Replaceable, Dual Element | Heavy Duty, Replaceable, Dual Element |
** Cub Cadet Big Country 6×4 Utility Vehicle Model 640 / 37AS640C100
Cub Cadet 640 Big Country 6×4 Electrical System
| Battery | 30 A/hr, 365 cold cranking amps |
| Alternator | 12 V 20 A Regulated |
| Headlights | Two 37.5 watt Halogen |
| Wiring | Automotive Style Fused Control System |
Cub Cadet 640 Big Country 6×4 UTV Dimensions
| Overall Length | 110.4” (280.4 cm) |
| Overall Width | 65.0” (165.1 cm) |
| Front-Tread Centers | 50.0” (127 cm) |
| Rear-Tread Centers | 52.0” (132.1 cm) |
| Overall Height | 41” (104.1 cm) |
| Wheel Base | 84.0” (213.4 cm) |
| Weight (including fuel/fluids) | 1,552 lbs. (704.2 kg) |
| Ground Clearance (Under Transaxle) | 6.4” (16.3 cm) |
| Ground Clearance (Under Foot Platform) | 7.5” (19.1 cm) |
| Seating Capacity | 2 persons |
| Seat Type | High Back |
| Turn Clearance Circle | 23.0 ft (7.0 m) |
| Towing Capacity | 1,200 lb (545.5 kg) |
| Payload Capacity | 1,400 lb (636.4 kg) |
Cub Cadet Big Country 6×4 Utility Vehicle Cargo Box
| Material | 14-Gauge Steel |
| Attachment | Rubber Isolated |
| Cargo Box Volume Capacity | 13.3 cu ft (0.38 m3) |
| Cargo Box Weight Capacity | 1,000 lb (453.6 kg) |
Cub Cadet 6×4 Big Country 640 Transmission Specs
| Transmission Type | Continuously Variable (CVT) |
| Differential Lock | Standard, Hand Operated |
| Max Speed | 19 mph (30.6 km/h) |
| Transaxle | Fully enclosed, Oil Bath |
| Gear Selection | Forward, Neutral, Reverse |
| Overall Reduction Ratio | Low: 73.8:1, High: 16.5:1 |
| Drive Chain | No. 60 Industrial Roller Chain |
| Rear Axle Housing | Welded Steel |
| Steering | Rack & Pinion w/ Ackerman-Type Geometry |
| Front Suspension | Independent, spring over shock, single A-arm |
| Rear Suspension | Fully Independent w/ Coil Over Shocks |
| Brakes | Wet Disk in Transaxle |
| Parking Brake | Foot Operated |
| Fuel Gauge | Located Under Seat |
| Low Fuel Indicator | Dash Indicator Light |
| Fuel Tank Capacity | 5.7 gal (21.6 L) |
Equipped with a Continuously Variable Transmission (CVT) and a standard hand-operated differential lock, the Big Country 6×4 UTV ensures smooth and controlled driving experiences. The fully independent suspension with coil-over shocks and the wet disk brakes in the transaxle provide excellent handling and stopping power.
Additional features include a 14-gauge steel cargo box with a capacity of 1,000 pounds and a volume of 13.3 cubic feet, as well as a 5.7-gallon fuel tank with a convenient dash indicator light for low fuel levels. The UTV also incorporates modern electrical components such as a 30-amp/hr battery, 12V-20amp regulated alternator, and two 37.5-watt halogen headlights, ensuring it meets the demands of both daytime and nighttime operations.
The Cub Cadet Big Country 6×4 Utility Vehicle Model 640 is engineered to provide superior performance, durability, and versatility for a variety of agricultural, industrial, and recreational uses.
