Construction / Rock Trucks / Caterpillar / 798 AC

Ship a Caterpillar 798 AC rock truck: specs verified, rate in 60 seconds

The Caterpillar 798 AC measures 51 ft 5 in long, 33 ft 2 in wide and 22 ft 1 in high at 1,375,000 lbs (15.67 m × 10.11 m × 6.73 m, 623,689 kg). It is an oversize load (superload review); permits and escorts are priced into the rate automatically. Enter your route below; the dimensions are already in the form.

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Machine dimensions

✎ Edit dimensions

L 51 ft 5 in · 15.67 mW 33 ft 2 in · 10.11 mH 22 ft 1 in · 6.73 mWt 1,375,000 lbs · 623,689 kg

Verified against the manufacturer's published specifications (source, 2026-11-01). Final dimensions are the shipper's responsibility; confirm with the pickup site if unsure.

Oversize load, and what that means for your shipment. At 33 ft 2 in wide this machine exceeds the 8 ft 6 in legal limit on every route. Your rate includes the right trailer, permits and escorts (likely two escorts), priced automatically, nothing added at pickup.

Before you book: what shippers ask

What trailer does a Caterpillar 798 AC need?

A multi-axle lowboy or RGN. At 22 ft 1 in tall the machine sits at 23 ft 7 in on an RGN deck and 27 ft 1 in on a flatbed; the legal loaded height is 13 ft 6 in in the US and 13 ft 7 in in Canada.

Does a Caterpillar 798 AC need oversize permits?

Yes. 33 ft 2 in of travel width exceeds the 8 ft 6 in legal limit; the quote prices permits for every state or province crossed, escorts likely two escorts, and files them for the carrier.

Can a Caterpillar 798 AC be loaded without a crane?

Yes when it starts and drives: it loads under its own power on the trailer's ramps. If it is inoperable, toggle starts-and-drives off in the form; winch loading is priced in, never added at pickup.

How should I prepare a Caterpillar 798 AC for pickup?

Empty the bucket or bed, fold and secure loose parts, note fluid leaks, and confirm the dimensions against the machine as it sits: debris, unfolded attachments or missing counterweights change weight and price.

What does it cost to ship a Caterpillar 798 AC?

Distance and the trailer class drive the price once the dimensions are set. Enter pickup and drop-off below; the rate is free, bookable and locked for 30 days.

How this rock truck ships

1. Equipment match: Multi-axle lowboy or RGN
2. Loading: Drive-on when it runs; winch when it does not
3. Permits and escorts: superload review, escorts likely two escorts
4. Season: weight-sensitive in spring thaw: rural pickups in Canada and the northern US may face road bans March to May, priced automatically

Operational specs

Published manufacturer figures for the base unit (Caterpillar's published specifications, source, 2026-11-01); transport dimensions above remain the planning figures.

Weights - Approximate

Nominal Rated Payload: 410 ton (US)
Rated Gross Machine Weight: 1375000 lb
Chassis Weight: 453826 lb
Body Weight Range: 38 833 - 43 275 kg (85,611 - 95,406 lb)

Engine

Gross Power - SAE J1995: 3500 hp
Engine Model: Cat® C175-16
Net Power - SAE J1349: 3405 hp
Optional Gross Power - SAE J1995: 3100 hp
Rated Speed: 1800 r/min
Emissions Rating: Fuel Optimized
Bore: 6.9 in
Stroke: 8.7 in

Service Refill Capacities - High Altitude Only

Fuel Tank: 2000 gal (US)
Cooling System: 273 gal (US)
Crankcase: 124 gal (US)
Hydraulic Tank: 273 gal (US)
Hydraulic System (includes tank): 342 gal (US)

Service Refill Capacities

Fuel Tank: 1300 gal (US)
Fuel Tank (Tier 4): 1200 gal (US)
Diesel Exhaust Fluid Tank: 100 gal (US)
Cooling System: 211 gal (US)
Crankcase: 82 gal (US)
Final Drive - Each: 67 gal (US)
Hydraulic System - Including Tank: 385 gal (US)
Hydraulic Tank: 296 gal (US)

Steering

Steer Angle: 39 °
Turning Diameter - Front: 106.3 ft
Steering Standards: ISO 5010:2019

AC Drive System

Total Reduction Ratio: 35:01:00
Top Speed - Loaded: 40 mile/h
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
Cooling System: Cat variable speed, hydraulically driven cooling system

Braking System

Service Brakes: Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated
Front Wet Disc Brake Surface Area: 22642 in²
Rear - Wet Disc Brake Surface Area: 32730 in²
Standards: Service and Secondary: ISO 3450:2011
Electric Retarding: Radial Grid Design
Dynamic Retarding Power - Continuous: 5480 hp
Parking Brakes: Four-corner, Multi-disc, Spring Applied, Hydraulically Released
Load Brake: Rear service brakes

Weight Distributions - Approximate

Front Axle - Empty: 47 %
Rear Axle - Empty: 53 %
Front Axle - Loaded: 33 %
Rear Axle - Loaded: 67 %

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1 · Your machines

Ⓐ Length?The longest point of the machine from front to back, including anything that sticks out (forks, blade, counterweight).

ftinch

Ⓑ Width?The widest point of the machine BODY, left to right. Don't count the attachment here, that goes in Ⓓ.

ftinch

Ⓓ Attachment width?Width of the bucket, blade, or boom if it's wider than the machine body.

ftinch

Ⓔ Angled width?If the blade or attachment can be turned/angled for transport, enter its width when angled. We price on this narrower width.

ftinch

Weight?Total operating weight including attachments. Check the spec plate on the machine or the operator's manual.

lbs

Starts and drives??Starting and driving are different things: the machine must start AND move under its own power onto the trailer. If it starts but cannot drive, answer No. Non-runners need a winch-equipped trailer (surcharge applies). Loading assistance is not included in any quote; the driver loads with the truck's own equipment only.

Value of the shipment *?What would it cost to replace this cargo today? Your declared value sets your protection options and prints into your agreement.

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All equipment specs

Specifications are provided for transport planning purposes only and reflect standard base configurations as published by equipment manufacturers and industry sources. Actual dimensions and weights vary by configuration, options, attachments, and condition. LoadLoom does not guarantee the accuracy or completeness of published specifications. Confirming final dimensions and weight is the responsibility of the shipper; misdeclared dimensions may result in adjusted pricing, delays, or refused pickup. Legal load limits, permit requirements, and escort rules vary by state and province and are subject to change; permit and escort estimates are informational until confirmed at booking. Coverage is subject to declared value and the terms of the LoadLoom booking contract. Images and schematics are illustrative and may not depict the exact model or configuration listed. See PriceLock terms and the LoadLoom Terms and Conditions. Report an incorrect spec.