• 1,378,500 lbs Max Gross Vehicle Weight
  • 3,500 @1900 rpm Gross HP
  • 400 U.S. tons Capacity

980E-4 Electric Drive Mining Truck

The Komatsu 980E-4 mining truck offers a 400 short ton payload with the durability and reliability found in all of our electric drive trucks. With a power Komatsu SSDA18V170 engine, exclusive General Electric drive, simple and efficient hydraulic system and robust box section frame, the 980E-4 carries on the tradition of Komatsu as a leader in the ultra-class mining truck market. With available features like Komatsu Smart Rims, KomVision all-around monitoring system, ergonomic operators cab and convenience center located near the entrance to the truck, the 980E-4 sets the standard for quality in its class.


Electric Dynamic Retarder

The 4476 kW 6,000 HP retarding system provides state of the art braking capacity for navigating today’s mining applications which contain steep continuous descents and sharp switchbacks. Continuous retarding capacity enhances the productivity of the vehicle operator, while eliminating the need for excessive mechanical braking effort.

Komatsu Designed Application Specific Body

Utilizing the required Body Worksheet (BW) process, Komatsu ensures that each body is designed to meet the requirements for each specific application while carrying its rated payload. Komatsu works with each customer to understand the material properties at a mine site and to identify the appropriate liner package.

Komatsu offers a standard all-welded steel, flat floor body with a full canopy and horizontal bolsters. This body includes a driver side eyebrow, body up sling, and rubber mounts on the frame.

  • ■ Standard Body SAE Heaped 2:1: 250 m3 327 yd3
  • ■ Standard Komatsu Body Weight: 41731 kg 92,000 lbs


As part of a complete service and support program, Komatsu equips every mining and quarry sized machine with Komtrax Plus®. By using a satellite-based communication system, Komtrax Plus® offers a new vision of monitoring your valuable assets. By providing insight to critical operating metrics the user can manage increased availability, lower ownership and operating costs and maximize fuel efficiency.

The information available through Komtrax Plus® allows service personnel to review faults and trends, improve the quality of the troubleshooting process and reduce unscheduled machine downtime.

Simple and Reliable Hydraulic System

The hydraulic system is a proven and reliable design with fewer parts than other OEMs. The system utilizes a single tank, providing one common source of fluid for steering, braking, and hoisting. In-line, replaceable filtration elements provide protection from hydraulic system contamination, making the system easier to service.

To keep downtime to a minimum, Komatsu developed a sub-frame pump module that can be removed and replaced as a single unit. This reduces change-out time and allows easy access to the hydraulic pump module.

Structurally Enhanced Frame Design

By using advanced computer-aided design, finite element analysis, and full-scale static and dynamic testing, the frame has been designed to carry 363 metric tons 400 short tons and provides the high structural reliability Komatsu is known for.



All-welded steel flat floor body with horizontal bolsters and full canopy. Rubber mounts on frame, eyebrow and body up sling are standard. Extended canopy and pivot exhaust heating are optional.

Floor sheet
1379 MPa / 200,000 psi tensile strength steel

16 mm 0.63''
19 mm 0.75''
Front sheet
1379 MPa / 200,000 psi tensile strength steel

Outer 10 mm 0.39''
Center 12 mm 0.47"
Side sheet
1379 MPa / 200,000 psi tensile strength steel
10 mm 0.39''
Canopy sheet
690 MPa / 100,000 psi tensile strength steel
6 mm 0.24''
SAE heaped 2:1 250 m³ 327 yd³
Standard Komatsu body weight 41731 kg 92,000 lb

Braking System

Service brakes: Oil-cooled, hydraulic actuated, multiple disc brakes at each wheel.

Traction system
  Wheel spin-slide control
Max. service apply pressure 18960 kPa 2,750 psi
Total friction area per brake 103729 cm²
16,078 in²
Auto apply system
Automatically applied prior to hydraulic system pressure dropping below level required secondary stopping requirements.
Secondary brake system   Complies with ISO-3450 Standards
Wheel brake lock
Switch activated
Parking brakes
Multiple disc, spring-applied, hydraulicallyreleased, dry brakes on inboard end of each wheel motor rotor shaft. Rated to hold on ±15% grade at maximum gross vehicle weight.
Electric dynamic retarder (max) - Continuous
4476 kW
6,000 hp

Continuously rated high-density blown grids w/retard capacity at low speeds and retard in reverse propulsion.


Advanced Operator Environment with integral 4-post ROPS/ FOPS Level 2 structure (ISO 3449), adjustable air suspension seat w/lumbar support and arm rests, full-size passenger seat, maximum R-value insulation, tilt and telescoping steering column, electric windshield wipers w/washer, tinted safety glass, power windows, Payload Meter IV, 55,000 Btu/hr heater and defroster, 21,600 Btu/hr air conditioning (HFC - 134A refrigerant)

Cooling System

Replaceable core radiator assembly, split-flow, with deaeratortype top tank

Radiator frontal area 7.02 m² 75.5 ft²

Electric Drive

Alternator GTA-39
Dual Fan Main Blower
340 m³/min 12,000 cfm
Control AC Torque Control System
Motorized wheels* GDY108-C Induction Traction Motors
Ratio 32.02:1
Speed (maximum) 61 km/h 38 mph

* Drive system performance depends upon gross vehicle weight, haul road grade, haul road length, rolling resistance and other parameters. Komatsu must analyze each job condition to assure proper application

Electric System

4 x 8D 1400 CCA, 12 volt, in series/parallel, 220 ampere-hour, bumper-mounted with disconnect switch & lock-out.

Alternator 24 volt, 250 amp
Lighting 24 volt
Cranking motors Two/24 volt


Make and model
Komatsu SSDA18V170
Number of cylinders
Operating cycle
4 cycle
Gross Horsepower* @ 1900 rpm
2610 kW 3,500 HP
Net flywheel power** @ 1900 rpm
2495 kW 3,346 HP
Weight (wet) 11750 kg 25,897 lbs
Weight (dry)
11250 kg
24,795 lbs
Tier 4 (TPEM) Engine
Tier 4 (TPEM) Engine – Canada

* Gross horsepower is the output of the engine as installed in this machine, at governed rpm and with engine manufacturer’s approved fuel setting. Accessory losses included are water pump, fuel pump and oil pump.

** Net flywheel power is the rated power at the engine flywheel minus the average accessory losses. Accessories include fan and charging alternator. Rating(s) represent net engine performance in accordance with SAE J1349 conditions.


Advanced technology, full butt-welded box sectional laddertype frame with integral ROPS supports, integral front bumper, rear tubular cross members, steel castings at all critical stress transition zones, rugged continuous horsecollar.

Plate material
tensile strength steel
482.6 mPa 70,000 psi
Casting material
tensile strength steel
620.5 mPa 90,000 psi
Rail width 305 mm 12''
Rail depth (minimum) 864 mm 34''
Top and bottom plate thickness 45 mm 1.77''
Side plate thickness:    
Rear 25 mm 0.98''
Front 32 mm 1.26''
Drive axle mounting Pin and spherical bushing
Drive axle alignment Swing link between frame and axle

Hydraulic System

Steering: Accumulator assisted with twin double acting cylinders provide constant rate steering. Secondary steering automatically supplied by accumulator.

Turning circle diameter (SAE) 32 m
Reservoir 947 L 250 U.S. gal
In-line replaceable elements
Single, full flow, 100 mesh
Hoist and steering
Dual, in-line, high pressure
Brake component cabinet
Above deck, easily accessible with diagnostic test connections
Two 3-stage dual-acting outboard cylinders, internal cushion valve, over-center dampening
Hoist times:

Power-up loaded
21 sec
Power-down (high idle)

16 sec
Float-down empty (low idle)

Two pumps, single package, in-line
Hoist and brake cooling
Tandem gear pump with output of 931 lpm 246 gpm at 1900 rpm and 18960 kPa 2,750 psi
Steering and brake
Pressure-compensating piston pump with output of 246 lpm 65 gpm at 1900 rpm and 20685 kPa 3,000 psi
System relief pressures:

Hoist and brake cooling 17237 kPa 2,500 psi
Steering and brake 20685 kPa 3,000 psi

Ports available for powering disabled truck and for system diagnostics.

Service Capacities

Cooling System 719 L 190 U.S. gal
Crankcase 341 L 90 U.S. gal
Hydraulic system 1325 L 350 U.S. gal
Motor gear box (each) 95 L 25 U.S. gal
Fuel tank
5300 L 1,400 U.S. gal


Variable rate hydro-pneumatic with integral rebound control

Max. front stroke 303 mm 11.92''
Max. rear stroke 239 mm 9.40''
Max. rear axle oscillation ±6.5°

Tires and Rims

Rock service, tubeless, radial tires

Standard tire*
59/80 R63
Flange mount, five piece rim (rim assembly)
1118 mm x 1600 mm x 140 mm
44'' x 63'' x 5.5''
Rims rated at 758 kPa 110 psi cold inflation pressure.

Typical total tire weight 32585 kg 71,838 lbs

* Tires should meet application requirements for tkph/tmph, tread, compound, inflation pressure, ply rating or equivalent, etc 


  • Air cleaners, Donaldson® w/evacuators
  • Alternator (24 volt/250A)
  • Automatic lubrication system w/ground level fill & level indicator
  • Back up alarm
  • Batteries–4 x 8D (1450 CCA’s)
  • Battery charging cable and socket
  • Body impact plate
  • Body over center device
  • Brakes: oil-cooled, multiple disc front & rear
  • Deck guardrails
  • Electric start
  • Eliminator®, Centinel®, Cense®
  • Fast-fill fuel system (in tank and left side remote)
  • Filters, high pressure hydraulic
  • Fuel tank sight gauge (3)
  • Ground level radiator fill
  • L&M Radiator
  • Mud flaps
  • Muffled exhaust–deck-mounted
  • Power supply, 24 volt and 12 volt DC
  • Propel/retard speed control
  • Quick disconnects (hoist and diagnostics)
  • Radiator sight gauge
  • Removable power module unit (radiator, engine, alternator)
  • Reverse retarding
  • Service center–LH
  • Thermostatic fan clutch


  • All hydraulic service brakes with auto apply
  • Battery disconnect switch
  • Brake lock and drive system interlock
  • Circuit breakers, 24 volt
  • Diagonal ladder tread cap plates
  • Dynamic retarding with continuous rated element grids
  • Engine access guard rail
  • Engine shutdown at ground level
  • Hoist propulsion interlock
  • Horns (electric–front)
  • Hydraulic tank ladder
  • Integral ROPS/FOPS Level 2 cab
  • Maintenance and power lockout
  • Parking brakes with warning light & speed application protection
  • Power steering w/auto secondary steering
  • Pump driveline protector
  • Radiator fan guard
  • RH & LH multi-cambered convex mirrors
  • Seat belts
    - Operator 3-point 51 mm 2" retractable
    - Passenger lap 51 mm 2" retractable
  • Slip-resistant / dimpled surface on walkways
  • Stairway-selectable direction (L to R)


  • AC drive interface display
  • Air cleaner vacuum gauges
  • Air conditioner HFC-134A
  • AM/FM radio with CD, USB & MP3
  • Dome light
  • Electronic Dash & Status Panel
    - Body up
    - Engine oil temperature (high)
    - Parking brake
    - Propulsion system not ready
    - No DC link voltage
    - No propel
    - Service brake applied
    - Wheel brake lock applied
    - Maintenance monitor
  • Engine hourmeter, oil pressure gauge, coolant temperature gauge, hydraulic oil temperature gauge
  • Engine shutdown w/ “Smart Timer” delay
  • Floor mat (double barrier)
  • Fuel gauge in cab
  • Fuel low level light and buzzer
  • Gauges (w/backlight)
  • Headlight switch
  • Heater and defroster (heavy-duty)
  • Heater switch
  • High beam selector and indicator
  • Horn switch (center of steering wheel)
  • Indicator lights (blue)
    - Engine service
    - KOMTRAX Plus snapshot (IM)
  • Insulation (Max R-Value)
  • Komatsu Payload Meter III®
  • Operator seat, adjustable w/air suspension, lumbar support and arm rests
  • Panel lighting (adjustable)
  • Passenger seat, mechanical suspension
  • Power windows
  • Pressurized cab air system w/fan on
  • Single brake/retarder pedal
  • Starter key switch
  • Sunvisor (adjustable)
  • Tilt & telescoping steering column
  • Windows
    - Laminated glass, front
    - Tempered glass, sides and rear
  • Windshield wiper (dual) and washer (electric)


  • Back-up lights–rear mount (2) halogen
  • Back-up lights–R and L - deck mount (2) halogen
  • Brake and retard lights on top of cab
  • Clearance lights (LED)
  • Dynamic retarding, rear (2) (LED)
  • Engine compartment service lights
  • Fog lights (2) halogen
  • Halogen headlights- all high & low beam positions (10)
  • HID-style backup/ berm light
  • Manual back-up light, switch and indicator
  • Payload lights R and L (LED)
  • Platform lights R, L and Center
  • Recessed corner marker/ signal lighting (LED)
  • Stairway lights
  • Stop & tail lights (2) (LED)
  • Turn signals (LED)


  • 300 gpm fast fuel: RH in-tank, LH remote
  • Antifreeze: below 40°F
  • Body group, OEM ship loose*
  • Bumper access - retractable steps
  • Bumper mounted headlights
  • Cold weather suspensions - front & rear
  • Double wall exhaust
  • Dump body - standard design
  • Electric heater coolant
  • Electric heater engine oil
  • Electric heater hydraulic oil
  • Engine access platforms
  • Exhaust for heated body
  • Fire extinguisher
  • FLOC - LH service center
  • Hydraulic tank - mud flaps only
  • Hydraulic tank - ladder & mud flaps
  • Komatsu Smart Rims
  • Komatsu wireless bridge
  • KomVision™ All Around Monitoring System
  • LED headlights
  • PLM scoreboard displays- RH & LH
  • Premium operator & passenger seats
  • Radiator shutters
  • RH diagonal boarding stairway (replacing LH)
  • Service center–RH (replacing LH)
  • Spare rim (1)
  • Spare Komatsu Smart Rim (1)
  • Suspension charging kit
  • Tier 4 TPEM engine - Canada
  • Tier 4 TPEM engine - United States
  • Tool group