From inside (document excerpt):
Reelmaster 6500-D & 6700-D Specifications* REELMASTER 6500-D MODEL 03806, 2WD OR MODEL 03807, 4WD ENGINE RADIATOR ELECTRICAL FEATURES FUEL SYSTEM CONTROLS GAUGES ® REELMASTER 6700-D MODEL 03808, 4WD Kubota® V1505-T liquid-cooled diesel engine. 4-cylinder, over-head valve. 1.5 liter displacement. Turbo-charged. 46 hp (34.3 kW) gross rated, 42 hp (31.3 kW) net at 3000 rpm. 40 amp alternator. Donaldson two-stage air cleaner with safety filler and restriction indicator.
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Rear mounted, cross-flow agricultural type radiator, 7 fins per inch. Cooling system capacity is 3.5 gallons (13.25 liters). Air to oil cooler with 2 rows, 6 fins per inch, mounted in front of radiator tips outward for cleaning. Removable oil cooler/radiator screen. 12 volt, 650 cold cranking amperes at 0°F (-18°C), 105 minute reserve capacity at 80°F (27°C), maintenance free battery. 1.4 kW electric starter. 55 amp alternator with I.C. regulator/rectifier. Automotive type electrical system. Seat switch, reel and traction interlock switches. Bosch® in-line fuel injection pump with energized-to-run (ETR) fuel flow solenoid. Replaceable spin-on fuel filter/water separator. Fuel capacity: 15 gallon (57 liter). Foot operated traction and brake pedals. Hand operated throttle, traction speed limiter, parking brake latch, ignition switch, single joystick control for cutting unit on/off and lift/lower. Reel speed and backup controls located under the hood. Hour meter, speedometer, fuel gauge, engine coolant gauge, and warning light cluster: engine oil pressure, high engine temperature, charge indicator, glow plug, water in fuel indicator, low water indicator. Reel control lamp that lights to indicate the reels are not providing desired clip. The Automatic Control Electronics, ACETM system allows precision timing and control of machine functions for maximum reliability. Optional diagnostic display connects to an electronic control unit to pinpoint any electrical problems quickly and easily. Available DATA LOGTM system allows mechanic to find intermittent problems. Diagnostic test ports are provided for front and rear cutting unit drive, cutting unit lift, steering, and hydrostatic transmission charge pressure. Power to the front drive wheel is via servo-controlled hydrostatic pump operating individual fixed displacement axial piston wheel motors that operate a planetary gear final drive assembly. Foot pedal control of forward/reverse ground speed. Toro 4-Matic® 4WD System only: couples rear drive axle to hydrostatic transmission via overrunning clutch for full time on-demand 4WD. A Roll Over Protection Structure (ROPS) and seat belt are standard on 4WD models. 0-10 mph (0-16.1 km/hr) forward; 0-4 mph (0-6.4 km/hr) reverse. Two rear steering tires: 20 x 10-10, tubeless, 6-ply rating. Two front traction drive tires: 29 x 14-15, tubeless, 6-ply rating. Recommended tire pressure: 10-15 psi (59-103 kPa). All welded steel frame includes tie-down loops. Wet triple disc brakes on front planetary assemblies may be actuated individually for service brakes or locked together for transport or parking brakes. Dynamic braking through hydrostatic traction drive. Power steering with dedicated power source.