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John Deere 310: excavator-loader, series and inspection
John Deere 310 — the excavator-loader series, first produced in 1971 and used for road, communication, and construction work. We look at the 310G, J, K, L and SG, SK, SL series, key features, and what to check when buying a used 310.
310 in brief
John Deere 310 — a versatile machine with a front loader bucket and rear excavator arm. It's used for digging, loading, road, and communication work, making it suitable for both construction companies and municipal services.
Operating weight is usually around 7–8 tonnes, with a digging depth of about 5 metres. The 310 is popular in the used market due to its extensive parts and service network.
Series — what's the difference
Older 310 versions are simpler, with less electronics. The G, J, K, and L series improved comfort, hydraulics, and the engine, while the SG, SK, SL designations indicate heavier or more powerful versions.
Some machines have a side-shift for the excavator arm, while others are fixed. Hydraulics also vary: some have additional lines for a hammer or other attachments.
Engines and transmission
The John Deere 310 is powered by a John Deere PowerTech diesel engine. Newer versions feature systems that meet stricter emission standards, and their condition is crucial.
The transmission is either mechanical reverse (PowerShuttle) or Powershift. The choice depends on the version: Powershift is more convenient for frequent forward and reverse driving, while mechanical is simpler and cheaper.
What to check when buying a used 310
Check the engine hours, cold start, smoke, and leaks. Test the transmission and brakes: the shifts should be smooth, with no juddering or strange noises.
Inspect the jacking points and tow hook mounts (play is a common issue), cylinder leaks, and the condition of the stabilizer bar. Check for frame cracks and the condition of the axles, as well as whether the car has been heavily modified.
Generations and trims
Names and equipment vary by market and production year; we list the versions most commonly found in Europe.
310G / J
older generationsSimpler tech, lower price.
- Often — simpler electronics
- Often — high mileage
- A thorough inspection is essential
310K / L
newer generationsAn improved line-up.
- A more comfortable cabin
- Often — additional hydraulics
- A more economical engine
310SG / SK / SL
heavier versionsA more powerful and robust version.
- Often — deeper wading depth
- Often — Powershift transmission
- Often — more power
310 su kūju
depending on the trimReady for work with a hydraulic breaker.
- Additional hydraulic lines
- Suitable for dismantling work
- Hydraulics must be checked
Comparison of 310 versions
| 310G / J | 310K / L | 310SG / SK / SL | |
|---|---|---|---|
| Who it's for | For budget work | For daily work | For heavy-duty work |
| Transmission | Often manual | Manual or Powershift | Often Powershift |
| Comfort | Basic | Better | Good |
| Price in the used market (relatively) | Budget-friendly | Mid-range | High-end |
For a budget construction company, a 310G or J with a good history might suffice. If you're working intensively and comfort is key, it's worth looking for a newer version.
Pros
- Versatility – towing and hauling in one machine
- A solid offering of John Deere parts and service
- Reliable PowerTech engine
- Basic maintenance
Cons
- Play in the steering and suspension on older cars
- Less power than specialist excavators and loaders
- Less choice in the used market than some competitors
Frequently asked questions
How does the 310 differ from the 310SK or SL?
The letter S denotes a heavier or more powerful version, often with a deeper digging depth and Powershift transmission. Check the specific differences in the technical specs of the individual machines.
Is it worth buying a 310 with Powershift?
Yes, if the transmission is working smoothly. Powershift is more comfortable for loader work, but repairs can be more expensive than mechanical reversers.
What are the most common 310 issues?
Mostly — play in the steering and suspension, hydraulic leaks, and transmission wear. You'll spot most of these during an inspection.
Updated 2026-10-21 · Trim levels and equipment vary by market and model year — check the equipment of the specific car. · Translated automatically
