How do I confirm pilotpart689307 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

New Main Hydraulic Pump Coupling Assy 4191663 for Hitachi Excavator EX300 EX300-2 EX300-3

For Hitachi Coupling

Coupling 4191663 for Hitachi

OEM / REF: 4191663SKU: pilotpart689307

New Main Hydraulic Pump Coupling Assy 4191663 for Hitachi Excavator EX300 EX300-2 EX300-3 is a Coupling replacement part for Hitachi Hydraulic & Pneumatic Parts, categorized under Hydraulic & Pneumatic Parts > Coupling. Use OEM part number 4191663 and confirm machine model, engine model, and serial details before ch...

Stock: In stock
Condition: New
Fitment: Hitachi Hydraulic & Pneumatic Parts
Category: Coupling

Fitment support before you order
Worldwide delivery options

Quote required

Price on requestRFQ

Estimated delivery by quantity

Estimated delivery windows
Qty	Estimated delivery
1	Oct 21 – Oct 28
10	Oct 19 – Oct 26
50	Oct 17 – Oct 24

Estimates from today; confirm exact lead time before payment.

Quantity

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This part requires a quote. Add it to your quote list or send machine details for pricing and lead time.

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

Coupling Description

This Coupling is indexed for Hitachi Hitachi Excavator EX300 EX300-2 EX300-3. Compare reference number 4191663 against the label on your existing Hitachi component before ordering.

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

Part Numbers and Cross References

4191663 EX300 EX300-2

Applications

Hitachi Hitachi Excavator EX300 EX300-2 EX300-3

Fitment Notes

Brand or application signal: Hitachi Hydraulic & Pneumatic Parts
Product family: Coupling
System category: Hydraulic & Pneumatic Parts > Connections > Coupling
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.