Overview
The Cat® 798 AC electric drive truck is designed to haul more — with more efficiency, controllability, and reliability than any other electric drive truck in the marketplace. And while it may be a recent addition to the Cat ultra-class lineup, it delivers the same powerful, proven performance you expect from a Cat truck. The 798 AC delivers a payload up to 372 tonnes (410 tons), high speed on grade, easier maintenance, and excellent electric retarding and brake performance. The result? Improved productivity, high availability, and more confident operators.
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Gross Power - SAE J1995
2610 kW -
Engine Model
Cat® C175-16 -
Net Power - SAE J1349
2539 kW -
Optional Gross Power - SAE J1995
2312 kW -
Rated Speed
1800 r/min -
Emissions Rating
Fuel Optimized -
Bore
175 mm -
Stroke
220 mm -
Displacement
85 l -
Note (1)
Net Power advertised is the power available at the flywheel when the engine is equipped with air intake system, exhaust system, and alternator. -
Note (2)
U.S. EPA Tier 4 Final / EU Stage V available for applicable markets. -
Note (3)
Additional fuel optimized selectable power ratings: 2312 kW / 3,100 hp -
Engine Model
Cat® C175-20 -
Net Power - SAE J1349:2011
2983 kW -
Rated Speed
1750 r/min -
Emissions Rating
Fuel Optimized -
Bore
175 mm -
Stroke
220 mm -
Displacement
106 l -
Note (1)
Consult your tire manufacturer for maximum tire load. -
Note (2)
Chassis weight with 100% fuel, hoist, body mounting group, rims, and tires. -
Note (3)
Body weight varies depending on how body is equipped. -
Note (1)
Quick Change Rims optional. -
Note (2)
Caterpillar recommends the customer evaluate all job conditions and consult tire manufacturer for proper tire selection and TKPH (TMPH) capabilities. -
Note (1)
Twin, two-stage hydraulic cylinders mounted outside main frame; double-acting cylinders in both stages. -
Note (2)
Power raise in both stages; power down capability in both stages. -
Note (3)
Automatic body-lower modulation reduces impact on frame. -
Grease Tank
41 kg -
Note (1)
DEF Tank only available for U.S. EPA Tier 4 Final / EU Stage V engine option -
Wheel Base
6674 mm
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Gross Power SAE J1995:2014
3095 kW -
Note 1
Net Power advertised is the power available at the flywheel when the engine is equipped with air intake system, exhaust system, and alternator. -
Note 2
Additional fuel optimized selectable power rating: 2983 kW / 4,000 hp
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Rated Gross Machine Weight
623690 kg -
Chassis Weight
205852 kg -
Body Weight Range
38 833 - 43 275 kg (85,611 - 95,406 lb) -
Nominal Rated Payload
372 t
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Front Axle - Empty
47 % -
Rear Axle - Empty
53 % -
Front Axle - Loaded
33 % -
Rear Axle - Loaded
67 %
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Note
Weight distributions optimized with Cat body. -
Note
Anti-Lock Brake System (ABS) optional with CMD package -
Note
Contact your local Cat dealer for body recommendations. -
Note
Ambient capabilities down to -15C (5F) for heater/defroster and up to 50C (122F) for air conditioning. -
Note
Turning Diameter (ISO 7457:1997) -
Note
Dimensions listed includes canopy deflectors
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Total Reduction Ratio
35:01:00
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Top Speed - Loaded
64 km/h
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Generator/Alternator
Brushless, engine mounted, dual bearing -
Controls
IGBT Inverter Technology, air cooled, pressurized cabinet with filtration -
Wheel Motor
Cat high-torque AC induction, rear axle mounted
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Cooling System
Cat variable speed, hydraulically driven cooling system -
Fuel Tank
4922 l -
Fuel Tank (Tier 4)
4542 l -
Diesel Exhaust Fluid Tank
379 l -
Cooling System
799 l -
Crankcase
310 l -
Final Drive - Each
254 l -
Hydraulic System - Including Tank
1458 l -
Hydraulic Tank
1121 l -
Fuel Tank
7571 l -
Cooling System
1032 l -
Crankcase
471 l -
Hydraulic Tank
1032 l
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Rims
44" x 63" Rims -
Standard Tires
59/80 R63
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Service Brakes
Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated -
Front Wet Disc Brake Surface Area
146081 cm² -
Rear - Wet Disc Brake Surface Area
211163 cm² -
Electric Retarding
Radial Grid Design -
Dynamic Retarding Power - Continuous
4086 kW -
Load Brake
Rear service brakes
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Standards
Service and Secondary: ISO 3450:2011
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Parking Brakes
Four-corner, Multi-disc, Spring Applied, Hydraulically Released
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Struck
129-200 m³ (168-261 yd³)
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Heaped (SAE 2:1)
218-276 m³ (285-361 yd³)
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Type
Twin, two-stage hydraulic cylinders with snubbing valve. -
Type
Self-contained nitrogen/oil cylinders, pin-to-pin mounting, top & bottom double shear clevis attachments
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Pump Flow - High Idle
964 L/min -
Relief Valve Setting - Raise
20884 kPa -
Body Raise Time - High Idle
21 s -
Body Lower Time - Float
22 s -
Body Power Down- High Idle
17.5 s
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Effective Cylinder Stroke - Front
254 mm -
Effective Cylinder Stroke - Rear
133.35 mm
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Hydraulic System (includes tank)
1296 l
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Air Conditioning
HFC - 134A refrigerant: 21,600 Btu/h
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Heater / Defroster
24600 Btu/h -
ROPS Standards (1)
ROPS (Rollover Protective Structure) meets ISO 3471:2008 for Operator and ISO 13459:2012 for Trainer.
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FOPS Standards
FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II for Operator and ISO 13459:2012 Level II for Trainer.
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Sound Standards
The operator sound pressure level, 75 dB(A), measured according to ISO 6394:2008 and ISO 6396:2008.
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Steer Angle
39 ° -
Turning Diameter - Front
32.4 m -
Steering Standards
ISO 5010:2019
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Height - Top of ROPS
6720 mm -
Centerline of Rear Dual Tire Width
5943 mm
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Overall Length
15679 mm -
Loading Height - Empty
7784 mm -
Overall Height - Body Raised
14890 mm -
Centerline Front Tire Width
7028 mm -
Inside Body Width
8973 mm
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Rear Axle - Tail
4898 mm
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Dump Clearance - Empty
1744 mm -
Front Axle Clearance - Loaded
855 mm -
Overall Canopy Width (with rock deflectors)
10103 mm -
Outside Body/Canopy Width (without rock deflectors)
9639 mm -
Front Canopy Height - Empty
7928 mm -
Rear Axle Clearance - Loaded
854 mm -
Overall Tire Width - Empty
9226 mm -
Overall Length (High Altitude only)
15810 mm