Unimog

Unimogs are high-mobility all wheel drive trucks made by Mercedes-Benz. They are popular with armed forces and public utilities for use off-road and in snow, etc..

1946: The first Unimog was produced.
1951: Daimler Benz ("Mercedes") took over Unimog.

The Australian Army replaced its International 4×4 trucks with Unimogs in the ?1980s? 6×6 Unimog recovery vehicles were also purchased in the late 1990s.

1980s, Unimog 4×4, Forward-control truck 3 seats 2 doors
Loa 6545mm (6940mm with winch), width 2490mm, height 2615mm (cab) 3130mm (canopy),
Wheelbase 3850mm, grnd clearance 460mm, turning radius 8.4m (wall)
Weight 6600kg (unladen), GVM 12000kg (11000kg off-road)
Mercedes-Benz 5675cc diesel 6-cylinder direct-injection turbocharged 2v/cyl ohv
Bore 97mm, stroke 128mm, c.r. 16.0:1
Power 124kW at 2800rpm, torque 520Nm at 1800rpm
Transmission manual, 8 forward and 8 reverse speeds,  fwd: 13.01, 9.02, 5.96, 4.38, 2.97, 2.06, 1.36, 1.0 :1,  rev: 12.60, 8.74, 5.78, 4.24, 2.88, 2.00, 1.32, 0.97 :1,  part-time 4WD, front & rear diff' locks, portal-axles, diff' ratio 2.18:1, hub reduction 2.92:1, overall 6.38:1
Suspension live-axles & coils, brakes disc/disc
Tyres 12×20 18-ply
Optional winch PTO driven, 6 ton pull.
There is also a crew-cab model.
camofl
Australian Army
1995
model   payloadwheelbasepower
U 100 L4×41.5 - 1.8 t3220mm72kW
U 140 L4×42.0 - 2.5 t3470/ 3900mm79kW/ 102kW
U 1350 L4×42.5 - 3.0 t3250/ 3700mm100kW
U 1550 L4×43.0 t3250/ 3700/ 4500mm114kW
U 1550 L/384×44.0 t3850mm114kW
U 2150 L4×45.0 t3250/ 3850/ 4500mm132kW/ 157kW/ 177 kW
U 2450 L6×67.0 t3900mm177kW

1995 August: Mercedes-Benz (.au) won a $20.5M contract fpr 55 Unimog 2450L 6×6 recovery vehicles, replacing International F1 recovery vehicles.

1999: Unimog 2450L 6×6 Medium Recovery Vehicle, Forward-control truck, 3 seats
Loa 7580mm, width 2500mm, height 2800mm (cab), weight 13,500kg (unladen)
Payload 4,500kg, GVM 18,000kg, towing 12,000kg (braked)
Wheelbase 3900mm (1-2) and 5300mm (1-3), track 1870mm, grnd clearance 495mm
Approach 47°, departure 49°
Turning radius 9.25m
Type OM 366 LA, 5958cc, diesel, 6-cyls, turbo-charged intercooled, 2v/cyl ohv
Power 177kW at 2600rpm, torque 760Nm at 1700rpm
Transmission 8×2-speed (in fwd & rev), 2-speed transfer case, part-time 6×6, diff' locks, portal axles with hub-reduction
Suspension live-coil/ live-coil, brakes disc
Tyres 14.5R20, central tyre inflation system (CTIS), fuel-tank 165L (220L optional)
2×8-tonne winches, hydraulic under-lift system & Palfinger crane

2013, April 19: The new Unimog "U 4023 and U 5023 ... the follow-up models for the U 4000 and U 5000" [MB] got new cab styling, more efficient Euro VI engines and improved transmission.

2013±: The .au Army was to replace its Unimogs with MANs under Land 121 Phase 3B.

.au: In the 2010s some fire services started to be equipped with Unimog and G-wagen vehicles. The structure over the cab is to protect against falling tree limbs, one of the major dangers to fire fighters in the bush.

fire engine
At the Royal Show, 2019