How do I confirm pilotpart439431 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

Alternator Belt RD158-42920 for Kubota Excavator U48-5 KX033-4 KX040-4 Tractor Loader Backhoe L47

For Kubota Belts

Belts RD158-42920 for Kubota U48-5

OEM / REF: RD158-42920SKU: pilotpart439431

Alternator Belt RD158-42920 for Kubota Excavator U48-5 KX033-4 KX040-4 Tractor Loader Backhoe L47 is a Belts replacement part indexed for Kubota U48-5 and Kubota KX033-4, with 3 application records on file. Match OEM part number RD158-42920 and confirm fitment for Kubota Engine Spare Parts before ordering.

Stock: In stock
Condition: New
Fitment: Kubota Engine Spare Parts
Category: Belts

Fitment support before you order
Worldwide delivery options

In stock — ready to order

$76.99USD/EA

~~$10,999.00~~Save 99%

Estimated delivery by quantity

Estimated delivery windows
Qty	Estimated delivery
1	Nov 10 – Nov 17
10	Nov 8 – Nov 15
50	Nov 6 – Nov 13

Estimates from today; confirm exact lead time before payment.

Quantity

Confirm fitment before ordering →

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

Belts Description

This Belts is indexed for Kubota U48-5; Kubota KX033-4; Kubota KX040-4; Kubota L47. Compare reference number RD158-42920 against the label on your existing Kubota component before ordering.

Before checkout, compare OEM part number RD158-42920, 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

RD158-42920

Applications

Kubota U48-5
Kubota KX033-4
Kubota KX040-4
Kubota L47

Specifications

Part Number	RD158-42920

Fitment Notes

Brand or application signal: Kubota Engine Spare Parts
Product family: Belts
System category: Engine Spare Parts > Belt Drive Systems > Belts
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.