How do I confirm pilotpart145555 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

140AS Rubber Coupling PAT 3683643 778322 for Kobelco SK300 Sumitomo SH300 Excavator

For Kobelco Coupling

Coupling 3683643 for Kobelco

OEM / REF: 3683643SKU: pilotpart145555

140AS Rubber Coupling PAT 3683643 778322 for Kobelco SK300 Sumitomo SH300 Excavator is a Coupling replacement part for Kobelco Hydraulic & Pneumatic Parts, categorized under Hydraulic & Pneumatic Parts > Coupling. Use OEM part number 3683643 and confirm machine model, engine model, and serial details before checkout.

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

Fitment support before you order
Worldwide delivery options

In stock — ready to order

$101.00USD/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.

Coupling Description

This Coupling is indexed for Kobelco s: Fit For Kobelco Excavator:SK300 Fit For Sumitomo Excavator:SH300, SH75 Fit For Excavator: Hitachi, Caterpillar CAT, KATO, Komatsu, Volvo. Compare reference number 3683643 against the label on your existing Kobelco component before ordering.

Before checkout, compare OEM part number 3683643, connector layout, mounting position, and machine serial number. For high-value or fitment-sensitive parts, submit the fitment form below so support can verify the match.

Part Numbers and Cross References

3683643

Applications

Kobelco s: Fit For Kobelco Excavator:SK300 Fit For Sumitomo Excavator:SH300, SH75 Fit For Excavator: Hitachi, Caterpillar CAT, KATO, Komatsu, Volvo

Fitment Notes

Brand or application signal: Kobelco 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.