Challenger
Challenger MT345B
The Challenger MT345B is a utility tractor produced from 2006 to 2009 as part of the MT300B Series by Challenger, a part of AGCO. It features a 3.3L 3-cylinder turbocharged aftercooled diesel engine producing 91 hp gross power. The tractor offers 12-speed synchronized and power shuttle transmissions, two- or four-wheel drive options, and electro-hydraulic differential lock. It has hydrostatic power steering, hydraulic wet disc brakes, and a two-post folding ROPS with optional air-conditioned cab. The MT345B includes an open center hydraulic system with up to 3 rear valves and 2 mid valves, and a rear hitch with position and draft control. PTO options include independent 540 and optional 540/540E speeds. Dimensions include an 82.7 inch wheelbase and weights ranging from 5,291 lbs (2WD ROPS) to 7,716 lbs (4WD cab). Attachments include the ML72B and ML92B loaders with various lift capacities and bucket widths.
Power91 hp
Founded2006 - 2009
ModelMT345B
Technical Specifications
Detailed specifications and technical data for Challenger MT345B
Power
| PTO (claimed) | 75 hp (55.9 kW) |
|---|---|
| Engine (gross) | 91 hp (67.9 kW) |
Engine
| Fuel tank | 29 gal (109.8 L) |
|---|---|
| Rated RPM | 2150 |
| Bore/Stroke | 4.13x5.00 inches (105 x 127 mm) |
| Displacement | 201.4 ci (3.3 L) |
| Engine Detail | Challenger turbocharged aftercooled diesel, 3-cylinder, liquid-cooled |
| Power (gross) | 91 hp (67.9 kW) |
| Starter volts | 12 |
Weight
| 4WD cab | 7,716 lbs (3499 kg) |
|---|---|
| 2WD ROPS | 5,291 lbs (2399 kg) |
| 4WD ROPS | 5,732 lbs (2600 kg) |
Dimensions
| Width | 76 inches (193 cm) |
|---|---|
| Length | 148 inches (375 cm) |
| Wheelbase | 82.7 inches (210 cm) |
| Height (cab) | 102.5 inches (260 cm) |
| Height (ROPS) | 105 inches (266 cm) |
Electrical
| Ground | negative |
|---|---|
| Battery CCA | 675 |
| Battery volts | 12 |
| Charging amps | 80 |
| Charging system | alternator |
Hydraulics
| Type | open center |
|---|---|
| Pressure | 2755 psi (190.0 bar) |
| SCV flow | 15.8 gpm (59.8 lpm) |
| Mid valves | 0 or 2 |
| Total flow | 22.4 gpm (84.8 lpm) |
| Rear valves | 2 or 3 |
Mechanical
| ROPS | Two-post folding ROPS. Cab with air-conditioning optional. |
|---|---|
| Drive | Two- or four-wheel drive |
| Brakes | Hydraulic wet disc brakes |
| Steering | hydrostatic power |
| Differential lock | electro-hydraulic |
Production
| Type | Utility tractor |
|---|---|
| Series | MT300B Series |
| Years made | 2006 - 2009 |
Attachments
| ML72B Loader | 2090 lbs lift (full at 800mm) (948 kg), 126 inches height (at pin) (320 cm), boom cyl: 2.56 inches (6 cm), bucket cyl: 2.76 inches (7 cm), Bucket width: 63 inches (160 cm), 73 inches (185 cm), 83 inches (210 cm) |
|---|---|
| ML92B Loader | 2530 lbs lift (full at 800mm) (1147 kg), 126 inches height (at pin) (320 cm), boom cyl: 2.56 inches (6 cm), bucket cyl: 2.76 inches (7 cm) |
| Attachment overview | Challenger ML72B loader, Challenger ML92B loader |
Transmission
| Transmission options | 12-speed synchronized shuttle, 12-speed power shuttle |
|---|---|
| Type (power shuttle) | power shuttle |
| Gears (power shuttle) | 12 forward and reverse |
| Description (power shuttle) | Four gears in three ranges with power shuttle. Push-button clutch allows gear shifting without the use of the foot clutch. |
| Type (synchronized shuttle) | synchronized shuttle |
| Gears (synchronized shuttle) | 12 forward and reverse |
| Description (synchronized shuttle) | Four gears in three ranges with mechanical shuttle. |
Tractor hitch
| Control | position and draft control |
|---|---|
| Rear Type | I/II |
| Rear lift (at ends) | 5500 lbs (2494 kg) |
Power Take-off (PTO)
| Clutch | electro-hydraulic |
|---|---|
| Rear PTO | independent |
| Optional PTO | 540/540E Optional. |
| Rear PTO Type | 540 |