Machine models
Cat dump truck specifications
Choose the discharge system before comparing truck power
The 730 Ejector illustrates why this directory separates truck arrangements. Its horizontal, double-acting cylinder pushes the load out without tipping the body. The truck can spread material while moving, which changes the unloading operation compared with a conventional raised-body truck.
Cat's original AEHQ5634-03 brochure describes reduced overhead-clearance needs, but that does not supply permission to work beneath a particular obstruction or electrical line.
Material size matters too. For optimum durability and wear life, that brochure specifies rock smaller than 152 mm (6 in) for the ejector body. Establish the material being hauled before choosing ejection solely to avoid tipping.
A large-rock hauling requirement is not answered by the same specification as spreading suitable fill.
The hitch has separate steering and ground-following functions: articulation turns the truck, while oscillation maintains wheel contact over uneven ground. Inspect and describe those joints separately from the body and ejector mechanism when comparing an articulated listing. The ejector's body arrangement, material restriction and hitch construction are more useful selection details than treating every truck with similar horsepower as interchangeable.
Source: Cat 730 Ejector, AEHQ5634-03, discharge system and articulated hitch.
Every Cat dump truck model with a full listing.
37 Cat dump truck models have a page here, 13 articulated dump trucks and 24 rigid rock trucks. The Cat dump truck list runs from the D250B to the 797F, at 219 to 4,000 hp, in 73 listed versions.
The Cat dump truck models covered
37 Cat dump truck models have a page here, covering 73 listed versions between them.
The Cat dump truck range by model and configuration
13 articulated dump truck pages: engine power from 218.6 hp on the D250B to 617 hp on the AD55, and the heaviest single listing is the 730EJ at 56,328 lb. 24 rigid rock truck pages: engine power from 450 hp on the 769C to 4,000 hp on the 797F, and the heaviest single listing is the 797B at 584,225 lb. Half of the 63 Cat dump truck models sit between 385 and 1,348 hp, and half of the listed weights on single-model pages fall between 68,900 lb and 351,258 lb. The three most powerful are the 797F at 4,000 hp, 798 AC at 3,500 hp, and 796 AC at 3,500 hp. 19 of the 37 pages cover more than one version, and the 725 to 735 Bare Chassis has the most, at 7.
Cat dump truck: Articulated dump truck models
| Model | Engine power | Listed weight | Versions |
|---|---|---|---|
| Cat D250B and D300B | 218.6 hp and 260.2 hp | See page | 2 |
| Cat D250E and D300E | 260 hp and 285 hp | See page | 2 |
| Cat D30D, D350D, and D350D Wide Axle | 285 hp, 285.7 hp, and 285 hp | See page | 3 |
| Cat 725C | 314 hp | 51,191 lb | 1 |
| Cat 730EJ | 317 hp | 56,328 lb | 1 |
| Cat 725 to 735 Bare Chassis | 352 hp, 375 hp, and 436 hp | See page | 7 |
| Cat 730C and 730C EJ | 367 hp and 367 hp | See page | 2 |
| Cat AD30 to AD55 | 377 hp, 556 hp, and 617 hp | See page | 3 |
| Cat D40D and D400D | 385 hp and 385 hp | See page | 2 |
| Cat 735B to 740B EJ | 437 hp, 445 hp, 474 hp, and 474 hp | See page | 4 |
| Cat 740 Bare Chassis | Engine power: 452 hp; Versions: 1 | ||
| Cat 740C EJ and 745C | 496 hp and 496 hp | See page | 2 |
| Cat 740 to 745 Bare Chassis | 511 hp | See page | 4 |
Cat dump truck: Rigid rock truck models
| Model | Engine power | Listed weight | Versions |
|---|---|---|---|
| Cat 769C and 773B | 450 hp and 650.4 hp | See page | 2 |
| Cat 770, 770 Bare Chassis, and 772 | 477 hp, 515 hp, and 550 hp | See page | 3 |
| Cat 170 to 771D | 485 hp and 1,348 hp | See page | 2 |
| Cat 769D | 485 hp | 68,900 lb | 1 |
| Cat 772 Bare Chassis | Engine power: 605 hp; Versions: 1 | ||
| Cat 773E and 775D | 671 hp and 693 hp | See page | 2 |
| Cat 773F, 775E, and 775F | 702.7 hp, 730 hp, and 740 hp | See page | 3 |
| Cat 773, 775, and 775 Bare Chassis | 768 hp, 825 hp, and 825 hp | See page | 4 |
| Cat 777B | 870.4 hp | 132,399 lb | 1 |
| Cat 777D | 938 hp | 141,749 lb | 1 |
| Cat 777F | 939 hp | 163,090 lb | 1 |
| Cat 777 | Engine power: 1,025 hp; Versions: 3 | ||
| Cat 785C and 785D | 1,348 hp and 1,348 hp | See page | 2 |
| Cat 785 | Engine power: 1,600 hp; Versions: 1 | ||
| Cat 785 Bare Chassis | Engine power: 1,600 hp; Versions: 1 | ||
| Cat 789C | 1,770 hp | 299,101 lb | 1 |
| Cat 789 | Engine power: 2,100 hp; Versions: 1 | ||
| Cat 793C | 2,166 hp | 250,247 lb | 1 |
| Cat 793D | 2,337 hp | 351,258 lb | 1 |
| Cat 793 | Engine power: 2,650 hp; Versions: 1 | ||
| Cat 797 | 3,211 hp | 510,000 lb | 1 |
| Cat 797B | 3,370 hp | 584,225 lb | 1 |
| Cat 794 AC, 796 AC, and 798 AC | 3,500 hp, 3,500 hp, and 3,500 hp | See page | 3 |
| Cat 797F | Engine power: 4,000 hp; Versions: 1 | ||
What the Cat dump truck list holds
37 pages, ordered by power. D250B and D300B (218.6 hp and 260.2 hp); D250E and D300E (260 hp and 285 hp); D30D, D350D, and D350D Wide Axle (285 hp, 285.7 hp, and 285 hp); 725C (314 hp, 51,191 lb); 730EJ (317 hp, 56,328 lb); 725 to 735 Bare Chassis (352 hp, 375 hp, and 436 hp); 730C and 730C EJ (367 hp and 367 hp); AD30 to AD55 (377 hp, 556 hp, and 617 hp); D40D and D400D (385 hp and 385 hp); 735B to 740B EJ (437 hp, 445 hp, 474 hp, and 474 hp); 740 Bare Chassis (452 hp); 740C EJ and 745C (496 hp and 496 hp); 740 to 745 Bare Chassis (511 hp); 769C and 773B (450 hp and 650.4 hp); 770, 770 Bare Chassis, and 772 (477 hp, 515 hp, and 550 hp); 170 to 771D (485 hp and 1,348 hp); 769D (485 hp, 68,900 lb); 772 Bare Chassis (605 hp); 773E and 775D (671 hp and 693 hp); 773F, 775E, and 775F (702.7 hp, 730 hp, and 740 hp); 773, 775, and 775 Bare Chassis (768 hp, 825 hp, and 825 hp); 777B (870.4 hp, 132,399 lb); 777D (938 hp, 141,749 lb); 777F (939 hp, 163,090 lb); 777 (1,025 hp); 785C and 785D (1,348 hp and 1,348 hp); 785 (1,600 hp); 785 Bare Chassis (1,600 hp); 789C (1,770 hp, 299,101 lb); 789 (2,100 hp); 793C (2,166 hp, 250,247 lb); 793D (2,337 hp, 351,258 lb); 793 (2,650 hp); 797 (3,211 hp, 510,000 lb); 797B (3,370 hp, 584,225 lb); 794 AC, 796 AC, and 798 AC (3,500 hp, 3,500 hp, and 3,500 hp); 797F (4,000 hp). By kind: 13 articulated dump trucks at 219 to 617 hp and 39,602 to 103,617 lb; 24 rigid rock trucks at 450 to 4,000 hp and 66,500 to 584,225 lb.
The engines that recur are Cat® C13B (5), Cat® C18 (5), Cat® C15 (4), Cat® C175-16 (4), and Cat® C27 (4).
Other Cat equipment directories
New to the figures? Start with the specifications section and the machine classes.
| Evidence class | Document, classification and recorded date |
|---|---|
| Manufacturer |
|
| Reference site |
|
Cat dump truck questions
| Equipment inventory | 37 models in 2 kinds of machine: 13 articulated dump trucks and 24 rigid rock trucks. |
|---|---|
| Named starting references | The list starts with D250B, D250E, and D30D. |
| Comparison example | The D250B and D300B page is one example, setting 2 listed versions side by side. |
|---|---|
| Directory guides recorded | 37 |
| Reference pages | 37 |
|---|---|
| Observation date | 2026-09-24 |
| First named reference | D250B |
| Last named reference | 797F |
| Recorded field-count cutoff | 20 |
|---|---|
| Short listings recorded | 159 |
| Examples named in the record | SE60 V XW Vibratory Screed, SE60 V Asphalt Screed, and SE50 V Vibratory Screed |
| Configurations recorded | 73 |
|---|---|
| Recorded engine-power range |
|
| Model | 725C |
|---|---|
| Engine hp per 1,000 lb | 6.1 |
| Engine power in this directory |
|
|---|
| Observation date | 2026-09-24 |
|---|---|
| Configurations in that observation | 73 |
| Guides in the stated price-exclusion scope | 37 |
|---|
| Count by class | 13 articulated dump trucks and 24 rigid rock trucks |
|---|
| Engine-power range |
|
|---|
| Configurations | 73 |
|---|---|
| Reference pages | 37 |