Swing Motor Relief Valve – Fits Hitachi Excavators EX120-2, EX120-3, EX120-5

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Description

This is a swing motor relief valve – fits Hitachi excavators, specifically the EX120-2, EX120-3, and EX120-5 models.
If your machine's swing is jerky, weak, or won't hold position, this little valve could be the culprit.
It's the component that controls the hydraulic pressure on the swing circuit, keeping things smooth and preventing shock loads.

HITACHI EX120-5 Swing Valve Relief valve Excavator Parts Control Valve

It's aftermarket, not OEM, but it cross-references to Hitachi part numbers 4286404, 4328226, and 4373201 – so you've got multiple match points.
Brand new, in packaging, never installed.

4372683 Safety Relief Valve for Hitachi Excavator EX120-2 EX130-5

Made to universal fit for those Hitachi models, so installation is straightforward for any hydraulic tech or experienced mechanic.

Swing Motor Gearbox for Hitachi EX120-2 Excavator

If your EX120 is swinging slow or leaking down, swapping this relief valve is a common fix that doesn't cost a fortune.

4330219 Swing Motor Assy for Hitachi EX120-5 Excavator

Aftermarket quality is decent for the price – you're not paying the dealer markup, but you get a functional part that does the job.

4373201 Swing Motor Relief Valve for Hitachi EX120-5 ZAX120

Keep one on the truck for when that swing starts acting up.
Saves downtime and keeps your digger working.

4372682 4372683 9203496 9203495 9200489 Relief Valve For HITACHI ZAX120 Ex120 Ex135