How do I confirm pilotpart756179-8596426391800 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

For Komatsu Main & Relief Valve

Main & Relief Valve 4-02-901 for Komatsu

OEM / REF: 4-02-901SKU: pilotpart756179-8596426391800

Main Relief Valve 402901 for Komatsu Doosan Daewoo Excavator B55W-1 SOLAR 55 55-V 55W-V is a Main & Relief Valve replacement part for Komatsu Hydraulic & Pneumatic Parts, categorized under Hydraulic & Pneumatic Parts > Main & Relief Valve. Use OEM part number 4-02-901 and confirm machine model, engine model, and ser...

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

Fitment support before you order
Worldwide delivery options

In stock — ready to order

$94.00USD/EA

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

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

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

Main & Relief Valve Description

This listing helps buyers source a Main & Relief Valve for Komatsu Hydraulic & Pneumatic Parts by OEM number 4-02-901, SKU pilotpart756179-8596426391800, and Hydraulic & Pneumatic Parts > Hydraulic & Pneumatic Valves > Main & Relief Valve category filters.

Additional cross references on file: R55W-3. If your machine plate shows a different number, submit a fitment inquiry with photos before checkout.

Part Numbers and Cross References

4-02-901 R55W-3

Fitment Notes

Brand or application signal: Komatsu 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.