| Specification | COGENG AT310587 |
|---|---|
| OEM Equivalent | John Deere AT310587 / RE508145 |
| Direct Fit for | 210K, 315SJ, 310L, plus many G/D-series excavators |
| Function | Pilot control solenoid (safety or attachment enable) |
| Voltage Options | 12V DC or 24V DC |
| Operation | Normally Closed (energize to open) |
| Connector | 2-pin Deutsch |
| Includes O-rings | Yes |
| Torque | 15–25 Nm (11–18 ft-lbs) |
| Warranty | 1 year typical |
| Brand | Part Number | Notes |
|---|---|---|
| John Deere | AT310587 | OEM original – COGENG uses the same number |
| John Deere | RE508145 | Superseded part number (check compatibility) |
| Hitachi | 4378226 | Often interchangeable |
| Hitachi | 4378225 | Alternate |
✅ Direct Fit Confirmation: COGENG AT310587 is manufactured as a direct replacement for John Deere AT310587. Identical thread size, cartridge dimensions, connector type, and flow characteristics.
This solenoid valve is commonly used on the following John Deere models:
| Machine Series | Specific Models |
|---|---|
| K-Series Backhoes | 210K, 310K, 310L, 315K, 315SJ |
| G-Series Excavators | 130G, 160G, 200G, 210G, 240G, 270G, 300G, 350G, 370G |
| D-Series Excavators | 135D, 160D, 190D, 225D, 255D, 295D, 330D, 350D, 370D, 450D |
| C-Series Excavators | 200C, 230C, 270C (selected models) |
📌 Specifically confirmed for: 210K, 315SJ, 310L (as mentioned in your query)
The AT310587 is typically used as a pilot control solenoid for one of the following functions:
| Application | Description |
|---|---|
| Pilot Shutoff (Safety Lock) | Blocks all pilot oil flow when safety lever is raised (most common use on K-series backhoes) |
| Auxiliary Hydraulic Enable | Enables flow to auxiliary circuits (hammer, thumb, auger, grapple) |
| Two-Speed Travel | Controls high/low travel speed (on excavators) |
| Boom/ARM Drift Reduction | Engages drift reduction logic on certain models |
| Attachment Flow Control | Opens/closes pilot signal to attachment control valve |
Mounted on a pilot manifold block near the main control valve
Often part of a solenoid valve bank (multiple valves stacked together)
On K-series backhoes: Located under the cab floor or near the main valve
| Specification | 12V Version | 24V Version |
|---|---|---|
| Voltage | 12V DC | 24V DC |
| Operation | Normally Closed (energize to open) | Normally Closed (energize to open) |
| Coil Resistance | Approx. 15–25 Ω | Approx. 50–100 Ω |
| Pressure Rating | 35–40 bar (500–580 psi) | 35–40 bar (500–580 psi) |
| Flow Capacity | 2–8 LPM (pilot flow) | 2–8 LPM (pilot flow) |
| Connector Type | 2-pin Deutsch DT or Weatherpack | 2-pin Deutsch DT or Weatherpack |
| Mounting Thread | Common cartridge thread (e.g., M18 x 1.5 or similar) | Common cartridge thread |
| O-ring Seals | Included (Buna-N or Viton) | Included |
| Duty Cycle | Continuous (100%) | Continuous (100%) |
| Protection Class | IP65 / IP67 (weather-sealed) | IP65 / IP67 (weather-sealed) |
⚠️ Important: Verify your machine system voltage before ordering. Most John Deere backhoes (210K, 310L) use 12V. Most larger excavators (315SJ) use 24V. Check your battery or use a multimeter.
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