| Part Name: | BACK-UP Ring |
| Part Number: | 4027959 |
| Brand: | HITACHI |
| Country of Origin | Japan |
| Application: | Excavators |
| Delivery Time: | 1 to 3 working days |
| Packing: | Carton Box |
| Warranty: | 6 months |
| After-sales Service | Quick response, problem solved within 24h |
Product Categories: Control Valve Parts
Excavator Parts Hydraulic Pump Assembly RELIEF control Valve 4027959 BACK-UP Ring for EX100-2 EX100-3
Introduction
| Packing Information: | |
| Length(cm) | 2.5 |
| Width(cm) | 2.5 |
| Height(cm) | 0.1 |
| Weight(kg) | 0.1 |

Parts on group VALVE:
| Pos. | Part No | Qty | Parts name | Comments |
|---|---|---|---|---|
| 4288148 | [1] | VALVE | 0437400A | |
| 101. | +++++++ | [1] | CASING | |
| 151. | 0437401 | [1] | PLUG | |
| 152. | 0437402 | [1] | PLUG | |
| 153. | 0236014 | [3] | PLUG | |
| 154. | 0437403 | [1] | PLUG | |
| 161. | 4506420 | [1] | O-RING | |
| 162. | 4506412 | [1] | O-RING | |
| 163. | 4506415 | [1] | O-RING | |
| 164. | 4154233 | [1] | O-RING | |
| 166. | 957366 | [3] | O-RING | |
| 201. | 0437404 | [1] | COVER | |
| 203. | 0437405 | [4] | BOLT;SOCKET | |
| 301. | +++++++ | [1] | SPOOL | |
| 302. | +++++++ | [1] | SPOOL | |
| 321. | 0437406 | [1] | SPRING | |
| 322. | 0437407 | [1] | SPRING | |
| 323. | 0437408 | [1] | SEAT;SPRING | |
| 401. | 0437409 | [2] | VALVE | |
| 401A. | 0437410 | [1] | O-RING | |
| 401B. | 4027959 | [1] | RING;BACK-UP | |
| 401C. | 0185302 | [1] | RING;BACK-UP | |
| 501. | 0437411 | [1] | VALVE;SOLENOID | |
| 501A. | 0437412 | [1] | O-RING |
Compatible equipment models:
CX1000, CX1100, CX1800, CX350DR, CX500, CX500DR, CX500PD, CX550, CX700, CX700 JPN, EX100-2, EX100-2m, EX100-3, EX100-3C, EX100-3m, EX100M-2, EX100M-2m, EX100M-3, EX100M-3m, EX100WD-2, EX100WD-3












