Excavator
4 photosCaterpillar · Excavators
CAT 317 Midi Excavator
The CAT 317 has an operating weight of 40,200 lb and a 133 hp engine, with a maximum dig depth of 21 ft.
Updated October 2026
133 HP40,200 lbsMidi ClassEst. $107,000 – $235,000
How much is a used CAT 317 worth?
HeavyDutyYard estimates a used CAT 317 at $107,000–$235,000 (our estimate, not yet checked against recent sales).
HeavyDutyYard estimate
$107,000–$235,000
USD
Not yet checked against recent sales. Year, hours and condition decide where a unit lands.
Own a CAT 317 Midi Excavator? Get an offer or list it free →
HeavyDutyYard Marketplace
Excavators for sale now
Excavator
8 photosAbout the CAT 317 Midi Excavator
The CAT 317 Midi Excavator is a midi excavator. Versions you'll see on the used market include the 317D L, 317F L.
Owners mostly put it to work on general excavation, demolition, trenching.
Specifications
Engine & Power
- Engine
- Cat C6.6
- Horsepower
- 133 HP
- Fuel Tank
- 71.6 gal
Dimensions & Weight
- Operating Weight
- 40200 lbs
Performance
- Max Dig Depth
- 21 ft
- Max Reach
- 28.5 ft
- Bucket Capacity
- 1.01 cu yd
- Tail Swing
- Standard
Configuration
- Size Class
- Midi
Weight, power, and capacity figures checked October 2026 against 317 (next gen, current). Older or newer generations of this model may differ.
Model Generations
317D L317F L
Common Applications
- General excavation
- Demolition
- Trenching
Popular Attachments
ThumbQuick CouplerHammer
Common Configurations
Standard BoomLong Reach
How It Compares
| Spec | CAT 317 Midi Excavator | Komatsu PC240LC-10 Medium Excavator | Volvo EC300 Large Excavator |
|---|---|---|---|
| Engine HP | 133 HP | 177 HP | 240.1 HP |
| Op. Weight | 40,200 lbs | 55,129 lbs | 78,485 lbs |
| Max Dig Depth | 21 | 23.2 | 24.6 |
| Est. Price Low | $107,000 | $128,000 | $240,000 |
| Est. Price High | $235,000 | $280,000 | $400,000 |
Against the Komatsu PC240, the CAT 317 is 14,929 lb lighter, has 44 less hp and has 2.2 ft less max dig depth.
Against the Volvo EC300, the CAT 317 is 38,285 lb lighter, has 107.1 less hp and has 3.6 ft less max dig depth.
Frequently Asked Questions
How much does the CAT 317 weigh?
The CAT 317 has an operating weight of 40,200 lb and a 133 hp engine. Cab, counterweight, tracks, and attachments can move the real weight of a given unit up or down from this spec figure, so check the serial plate or the OEM spec sheet for the exact build before booking transport.
How much is a used CAT 317 worth?
HeavyDutyYard estimates a used CAT 317 at $107,000–$235,000 (our estimate, not yet checked against recent sales).
Where can I sell my CAT 317?
Send HeavyDutyYard the year, hours, and condition of your CAT 317 and we reply within one business day. We make cash offers on some machines; otherwise we list yours free on the HeavyDutyYard marketplace, where we review every listing and screen buyer messages before they reach you. Transport is coordinated when we buy.
What is the CAT 317 used for?
The CAT 317 Midi Excavator is commonly used for general excavation, demolition, trenching.