How do I confirm pilotpart853011-8542378262776 fits my machine?

Compare the OEM or reference part number, machine model, engine model, and serial number. You can also submit a fitment inquiry before ordering.

In Stock

Main Relief Valve 4324535 for Hitachi Excavator EX300-2 EX300-3 EX300-3C EX310H-3C EX300LC-2 EX300LC-3 EX300LC-3C

For Hitachi Main & Relief Valve

Main & Relief Valve EX300-3 for Hitachi

OEM / REF: EX300-3SKU: pilotpart853011-8542378262776

Main Relief Valve 4324535 for Hitachi Excavator EX300-2 EX300-3 EX300-3C EX310H-3C EX300LC-2 EX300LC-3 EX300LC-3C is a Main & Relief Valve replacement part for Hitachi Hydraulic & Pneumatic Parts, categorized under Hydraulic & Pneumatic Parts > Main & Relief Valve. Use OEM part number EX300-3 and confirm machine mod...

Stock: In stock
Condition: New
Fitment: Hitachi Hydraulic & Pneumatic Parts
Category: Main & Relief Valve

Fitment support before you order
Worldwide delivery options

In stock — ready to order

$84.00USD/EA

Estimated delivery by quantity

Estimated delivery windows
Qty	Estimated delivery
1	Oct 22 – Oct 29
10	Oct 20 – Oct 27
50	Oct 18 – Oct 25

Estimates from today; confirm exact lead time before payment.

Quantity

Buy online now or add to your quote list for bulk pricing and fitment confirmation.

Confirm fitment before ordering →

Lead times can vary by freight route and customs. Contact support for expedited shipping.

Main & Relief Valve Description

This Main & Relief Valve is indexed for Hitachi s:For Hitachi Excavator:EX300-2, EX300-3, EX300-3C, EX310H-3C, EX300LC-2, EX300LC-3, EX300LC-3C. Compare reference number EX300-3 against the label on your existing Hitachi component before ordering.

Additional cross references on file: EX300-3C, EX310H-3C, EX300LC-2. If your machine plate shows a different number, submit a fitment inquiry with photos before checkout.

Part Numbers and Cross References

EX300-3 EX300-3C EX310H-3C EX300LC-2 EX300LC-3 EX300LC-3C 4324535

Applications

Hitachi s:For Hitachi Excavator:EX300-2, EX300-3, EX300-3C, EX310H-3C, EX300LC-2, EX300LC-3, EX300LC-3C

Fitment Notes

Brand or application signal: Hitachi Hydraulic & Pneumatic Parts
Product family: Main & Relief Valve
System category: Hydraulic & Pneumatic Parts > Hydraulic & Pneumatic Valves > Main & Relief Valve
Recommended verification: OEM number, engine model, serial number, old part photos, and dimensions.

Shipping & Returns

Availability: InStock
Shipping: Shipping quotes can be confirmed before payment for heavy or urgent orders.
Returns: Returns are easier when fitment is confirmed before ordering.
B2B support: Bulk, fleet, and repair-shop requests can be handled through the inquiry form.

Frequently Asked Questions

How do I confirm this part fits my machine?

Match the OEM or reference number first, then verify machine model, engine model, serial number, connector layout, mounting points, and old part photos.

Can I order if my part number is not listed?

Yes. Send the old part number, machine plate, and photos through the fitment inquiry form. Support can review possible replacements or alternatives.

Is this an OEM part?

Products are indexed as replacement parts unless explicitly marked otherwise. Always compare reference numbers and confirm fitment before purchase.