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Heavy-Duty Main Relief Valves & Hydraulic Pressure Control Spares
Special Offers
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9159923 4300918 4383067 Relief Valve Fits HITACHI Excavator Spare Parts For EX100-5 EX120-5
9159923 4300918 4383067 Relief Valve Fits HITACHI Excavator Spare Parts For EX100-5 EX120-5 Part Number: 9159923 4300918 4383067 Application: Fits HITACHI Excavator Spare Parts For EX100-5 EX120-5 Condition: New Aftermarket Parts In Stock Key Features:...Regular price $ 178 -
Fits HITACHI ZAX120 EX120 EX135 Relief Valve 4372682 4372683 9203496 9203495 9200489
Fits HITACHI ZAX120 EX120 EX135 Relief Valve 4372682 4372683 9203496 9203495 9200489 Part Number: 4372682 4372683 9203496 9203495 9200489 Application: ZAX120 EX120 EX135 Condition: New Aftermarket Parts In Stock Key Features: Direct-fit replacement: No modification...Regular price $ 98 -
Main Relief Valve For Hitachi Ex120-2 Ex120-3 Hydraulic Pump Valve 9203496
Main Relief Valve For Hitachi Ex120-2 Ex120-3 Hydraulic Pump Valve 9203496 Part Number: 9203496 Application: For Hitachi Ex120-2 Ex120-3 Condition: New Aftermarket Parts In Stock Key Features: Direct-fit replacement: No modification required for installation. Stable...Regular price $ 109 -
4372683 Relief Valve for Hitachi ZAX110 ZAX120 EX100-5 EX120-5 EX130-5 Excavator
4372683 Relief Valve for Hitachi ZAX110 ZAX120 EX100-5 EX120-5 EX130-5 Excavator Part Number: 4372683 Application: for Hitachi ZAX110 ZAX120 EX100-5 EX120-5 EX130-5 Excavator Condition: New Aftermarket Parts In Stock Key Features: Direct-fit replacement: No modification...Regular price $ 98 -
4372682 Service Relief Valve For ZAX110 ZX120 JD120 EX120-5 Excavator
4372682 Service Relief Valve For ZAX110 ZX120 JD120 EX120-5 Excavator Part Number: 4372682 Application: For ZAX110 ZX120 JD120 EX120-5 Excavator Condition: New Aftermarket Parts In Stock Key Features: Direct-fit replacement: No modification required for installation....Regular price $ 89 -
Pressure Relief Valve 9200504 Replacement for John Deere Excavator 160LC 120 490E 110 135C 160C 190GW 190DW 120C
Pressure Relief Valve 9200504 Replacement for John Deere Excavator 160LC 120 490E 110 135C 160C 190GW 190DW 120C Part Number: 9200504 Application: for John Deere Excavator 160LC 120 490E 110 135C 160C 190GW 190DW 120C Condition:...Regular price $ 89
If your excavator is losing power under load or your hydraulic system is overheating, a worn replacement relief valve is often the root cause. As the primary safety and pressure regulator, a high-precision main relief valve protects your pumps and cylinders by diverting excess oil back to the tank once the set pressure is reached. BeeSpareParts stocks a wide range of cartridge and bolt-on relief valves built to maintain factory-spec breakout forces in harsh environments.
Hydraulic pressure issues are often linked to other components. If adjusting the valve doesn't restore power, we recommend inspecting your for internal wear, or browsing our to stop internal pressure bypass. Our relief valve assemblies feature hardened steel poppets and precision-wound springs, providing a cost-effective alternative to expensive original dealer parts.
Whether you need a main relief valve for an excavator, a port relief valve for a specific circuit, or a pressure control unit for a loader, our parts are factory-tested for accurate opening and closing pressures and are ready for fast international shipping. Regain your digging power—order your heavy-duty hydraulic valve solution today.
Fits for:
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Engine & Model Series: 4BT, 6BT, 4D95, 6D102, S6K, S4K, J05E, J08E, 4HK1, 6HK1.
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Equipment Models: ZX, PC, SK, EC, EX series excavators, backhoes, and mobile hydraulic systems.