Unimog Blog

DIMENSIONS with 335/80 R 20 tires
Overall height – 2,650 mm
Overall width – 2,490 mm
Track – 1,927 mm
Ground clearance – 423 mm

Wheelbase – 3,250 mm (model variant 437.421)
Overall length – 5,410 mm
Possible body length – 3,250 mm
Approach/departure angle – 41/44 degrees

Wheelbase – 3,850 mm (model variant 437.426)
Overall length with frame extension – 6,460 mm
Possible body length – 4,100 mm
Possible body length with frame extension – 4,600 mm
Approach/departure angle – 41/44 degrees

STANDARD EQUIPMENT
Engine

• Turbocharger with intercooler
• 2 control characteristics (on-road/off-road)
• Manual throttle (electronic)
• 2 viscous fans with V-belt drive
• Euro 5 emissions standard
• 2-stage engine brake (constantly open throttle/throttle valve)
• Air compressor 310 l/min
• Air dryer
• Air filter, moisture separator
• Cold start down to -18°C
• Maintenance intervals every 30,000 km (1,200 operating hours)

Clutch/transmission

• Single-plate dry clutch, self-adjusting
• 8 forward and 6 reverse gears
• Rear-axle drive with pneumatically selectable all-wheel drive
• Telligent® gearshift
• Cruise control/speed limiter
• Max. speed limiter 90 km/h
• EQR (Electronic Quick Reverse)

Frame/axles

• Flexible, ladder-type frame with high torsional flexibility
• 3-point mountings for engine, transmission
• Front towing jaw with pin
• Coil springs with progressive characteristic line
• Front/rear stabilizers
• Portal axles, i = 6.53
• Front/rear differential lock
• Anti-corrosion underbody protection (Dinol)

Cab, exterior

• All-steel short-bonnet cab, roof flap
• Seat position behind the front axle
• Short front end dimensions
• Cab strength acc. to ECE R29/2
• Bonnet tilts for maintenance
• 3-point sprung-mounted cab with dampers
• High, protected windscreen
• 2 rear windows
• Tinted glass all-round
• Power windows
• Windscreen washer system
• Windscreen wipers with several speed settings and intermittent setting
• Dust-free air intake at cab roof height
• Non-slip steps with grab handle
• Heated exterior mirrors, electrically adjustable

Cab, interior

• Heating and ventilation system, 3-speed blower, residual engine heat utilization
• Rest table and stowage compartments
• Overhead console with 2 installation openings for radio/tachograph
• Up to 3 sun visors
• Center console with central controls, 1 installation opening
• Combination switch on the steering column
• Instrument cluster with analogue and LCD displays
• On-board diagnostics
• Hour meter
• Seats with tailored backrest and integral head restraint
• Driver’s seat adjustable for height and length, adjustable backrest
• 3-point seat belts all around
• Armrest in door trim
• Interior lighting
• Coat hook
• Vehicle tools

Electrical system/lighting

• 24 V vehicle power supply
• Electronics box protected in the cab
• 24 V outlet
• CAN bus network
• Rear trailer socket, 15-pin
• Battery 66 Ah
• Electronic vehicle management system
• EMC-certified
• Three-phase generator 28 V/100 A
• Halogen headlamps
• Headlamp range adjustment
• Rear fog lamp
• Reversing lights
• End-outline marker lamps
• Additional indicators

Braking system

• Pneumatic/hydraulic high-pressure braking system (18 bar)
• Disc brakes on all 4 wheels
• 4-channel ABS, can be deactivated off-road
• Automatic load-sensitive brake pressure control (ALB)
• Compressed air connection for auxiliary loads
• Spring-loaded parking brake
• Tire inflation connection
• Brake pad wear indicator
• Air dryer

TECHNICAL DATA
Model – OM 904 LA | OM 924 LA

• Emissions class – Euro 5
• Type – 4-stroke diesel direct injection with turbocharger/intercooler
• No. and arrangement of cylinders – 4, in-line
• Max. output – 177 hp (130 kW) | 218 hp (160 kW)
• At rated engine speed – 2,200 rpm
• Max. torque – 675 Nm | 810 Nm
• Displacement – 4,250 cc | 4,800 cc
• Cooling system – Water with thermostat, 2 viscous fans with V-belt drive
• Diesel fuel tank net capacity – 145 liters, with crewcab 160
• AdBlue tank net capacity – 18 liters

Transmission

• MB full-synchromesh reversing transmission with 8 forward and 6 reverse gears
• Opt. additional 8 fully loadable working gears/off-road gears
• Opt. electronic AutomaticShift system

Speeds with 335/80 R 20 tires and final drive ratio i = 6.53
Main gears – 6.6 – 85.7 km/h
Working gears – 1.1 – 14.9 km/h

Electrical system 24 V

• Opt. battery 2 x 12 V/100 Ah, or 125 Ah
• Opt. 24 V/25 A and 12 V/15 A outlets with C3 signals
• Opt. 24 V/40 A equipment socket, 24-pin with C3/C4 signals

Steering

• ZF Servocom hydraulic power steering, type 8095
• Opt. right-hand drive
• Opt. VarioPilot® transferable steering system
• Turning circle Ø short wheelbase from 14.3 m
• Turning circle Ø long wheelbase from 16.2 m

Axles/drive/frame

• Portal axles connected to the transmission with torque tubes
• Axle tube and differentials situated above wheel center line, high ground clearance
• Standard-fit front/rear differential locks, all locks can be selected and deactivated electropneumatically while in motion using a dog clutch (100 % locking factor)
• Standard fording capability up to 800 mm
• Opt. fording system up to 1,200 mm fording depth
• Opt. heat protection and mechanical protection for forest firefighting
• Opt. frame extension, body length up to 4,600 mm possible

Cab
Exterior

• Opt. crewcab for 7 persons
• Opt. hydraulic tilt cab
• Opt. heated windscreen
• Opt. cab extended by 120 mm
• Opt. round roof hatch
• Opt. vertical exhaust pipe

Interior
Seats

• Opt. driver and passenger seats as air-sprung luxury suspension seat
• Opt. passenger seat as two-seater version; provides 3 seats
• Opt. driver and passenger seats as air-sprung luxury suspension seat

Air conditioning

• Integral air conditioning system or roof-mounted air conditioning system (also for crewcab)
• Opt. auxiliary heating with engine preheating, 7-day timer

Instruments, controls

• Driver information system (FIS) with status displays, event reports and menu-driven on-board diagnostics
• 2-line indicator lamps, visual and acoustic warning indicators
• Opt. digital tachograph

Safety

• Safety locks in the doors, steering and ignition lock

Lighting

• Opt. auxiliary headlamps with indicator lamps for implement operation
• Opt. waterproof halogen fog lamps
• Opt. rotating beacons

Wheels/tires

• 4 identical size tires; single tires
• Opt. low-pressure tires with MPT/AS treads
• Standard tires 385/80 R 20
• Smallest tires 335/80 R 20
• Largest tires 425/75 R 20
• Opt. tire pressure control system (tirecontrol) to adjust the tire pressure to on-road/off-road

Max. permissible loads
7.5 t Perm. GVW – 4.0 t (front axle), 4.4 t (rear axle)
8.5 t Perm. GVW – 4.0 t (front axle), 4.6 t (rear axle)
9.5 t Perm. GVW – 4.4 t (front axle), 5.3 t (rear axle)
10.0 t Perm. GVW – 4.5 t (front axle), 5.8 t (rear axle) only for firefighting

Towing capacity

• Opt. dual-line trailer braking system
• As truck up to 14.2 t, with center axle trailer up to 9 t

Hydraulics (optional)
Universal hydraulic system for positioning movements and continuous loads, implement manufacturer to supply req. Valves

Single-circuit hydraulic system, with 60 l/min flow rate and 240 bar operating pressure
Oil reservoir: 25 l (consumption quantity: 8 l)
Can be controlled by equipment provided by implement supplier
2 connectors front and rear

Auxiliary drives (optional)
Transmission-mounted auxiliary drive
Mechanical transmission-mounted auxiliary drive to power hydraulic pumps or similar

High-speed PTO with i = 1.0
Speed 2,200 rpm, rotates counter-clockwise in the direction of travel
Max. torque 520 Nm
Max. output 110 kW/120 kW depending on engine output
OR
Ultra-high-speed PTO with i = 0.61
Speed 3,606 rpm, rotates to the right in direction of travel
Max. torque 320 Nm
Max. output 110 kW/120 kW depending on engine output

Implements and attachments (optional)

• Front mounting plate acc. to DIN 76 060, type B, size 3
• Frame attachment fittings/brackets, front and center; cable winch bracket
• Floor assembly with twin 3-point cab mountings