• 4654850 Relief Valve HITACHI Excavator Spare Parts Fit For ZR950JC ZX330-3 ZX350H-3

• Specifiion

• Key functions

1.Overpressure Protection: Prevents catastrophic failures (e.g., burst hoses, cracked pump housings) caused by pressure spikes—common when the excavator’s bucket hits a hard obstacle or a valve is suddenly closed.

2.Pressure Stabilization: Maintains system pressure within the optimal range (28–32 MPa) for consistent equipment performance. It ensures hydraulic cylinders receive steady pressure for smooth, controlled movements (e.g., precise boom lowering).

3.Component Longevity: Reduces stress on high-cost parts like hydraulic pumps and cylinders by limiting pressure to their design limits. Without it, repeated overpressure events would drastically shorten component lifespan.

• Compatible models

ZR950JC ZX330-3 ZX330-3-HCMC ZX330-5G ZX330LC-5G ZX350-3-AMS ZX350H-3 ZX350H-5G ZX350K-3 ZX350K-5G ZX350LC-3-HCME ZX350LCH-5G ZX350LCK-5G ZX360W-3 ZX400W-3 Hitachi

• More other relief valve applied to HITACHI heavey machine

• Directory listing

• We could supply the following spare parts

1 Hydraulic parts: hydraulic pump, main valve, hydraulic cylinder, final drive, travel motor, swing machinery, swing motor etc.

2 Engine parts: engine ass’y, piston, piston ring, cylinder block, cylinder head, crankshaft, turbocharger, fuel injection pump, starting motor and alternator etc.

3 Undercarriage part: Track roller, Carrier roller, Track Link, Track shoe, Sprocket, Idler and Idler cushion etc.

4 Cab parts: operator’s cab, wiring harness, monitor, controller, seat, door etc.

5 Cooling parts: Radiator, air conditioner, compressor, after cooler etc.

6 Other parts: Service kit, swing circle, engine hood, swing joint, fuel tank, filter, boom, arm, bucket etc.

• Packing and Shipping

Packing Details :

inner packing : plastic film for wrapping

external packing : wooden

Shipping :

within 3 days after received the payment , by air or by express or by sea on the basis of the

quantity and emergency circumstances.

1. By Couriers: DHL, UPS, FEDEX, TNT are the main courier companies we are cooperated,

2. By Air: Delivery from the Guangzhou air port to customer's destination city air port.

3. By Sea: Delivery from the Huangpu port .

WHO WE ARE: We are excavator spare parts professional supplier.

WHAT WE DO: Our supply chain cover Engine parts, Hydraulic parts, final drive and swing gear parts, undercarriage parts, GET attachment parts, air conditioning parts, quick wear parts. We have been serving either in domestic market or overseas market, over 8 years' experience in excavator parts area enable us to have firm cooperation and partnership with many overseas customers.

WHOM WE SERVICE: Construction Company, Excavator parts wholesaler, Excavator parts dealer, Government, Personal.

Customer satisfaction and optimal machine performance are what ANTO Parts strive for by providing large storage of spare parts, reliable service and readily available stock. Approximately 95% of all most well known brands( Komatsu Hitachi Vo-lvo Hyundai Doosan Kobelco Kato Sumitomo JCB, SANY, XCMG, LONGKING, and so on) of excavator parts are continuously in stock.

“Customer can get quality and correct parts at best price, soonest way” is our final target.

We now have the biggest parts warehouse and improved storage system, 90 000 cubic meter room making it possible to storage the most commonly required construction machinery parts for instant delivery for customer urgent’ use.

We can supply spare parts for different kinds of request, either for genuine spare parts, OEM parts, aftermarket parts, or second-hand used spare parts.

We stock various types of assemblies of hydraulic pump, final drive and swing drive, control valve, OEM or Genuine, from Korea and Japan, or China made.

You can count on us for various range of spare parts as below:

Engine spare parts, undercarriage track parts, Seal kits parts, Electric spare parts, Hydraulic spare parts, attachment bucket and rock breaker spare parts.