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SKU:
NLT2T02360
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Pair of Bottom Rollers RD148-21700 for Kubota KX040-4 KX121-3 KX121-3ST Mini Excavator
$349.89
In Stock
$349.89
Sale price
$349.89
Regular price
This pair of bottom track rollers replaces parts using reference #RD148-21700 on select Kubota KX040-4, KX121-3 and KX121-3ST mini excavators. It supports the weight of the excavator and guides the lower run of the track.
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Compatible equipment / model
- Kubota KX121-3, KX121-3SS, KX121-3ST, KX040-4
Product Overview
Pair of Bottom Track Rollers support the weight of the excavator and guide the lower run of the track. When you notice flat spots, seized bearings or uneven track movement, inspect the surrounding components before replacing the part; similar symptoms can have more than one cause.
This replacement is intended for Kubota KX040-4, KX121-3 and KX121-3ST mini excavators. Check roller dimensions, bolt spacing and machine serial number against the original equipment so that the replacement matches the actual installation.
Key Features & Performance
- Pair of Bottom Track Rollers for the stated application
- Package quantity: two pieces
- Function: support the weight of the excavator and guide the lower run of the track
- Important fitment checks: roller dimensions, bolt spacing and machine serial number
Replaces / Cross-References
- RD148-21700
- RD118-21700
What Is Included
Includes two lower track rollers.
Fitment Notes
Match roller dimensions, bolt spacing and machine serial number. The published RD148-21700/RD118-21700 relationship is useful, but match roller dimensions before treating either number as an interchange.
Frequently Asked Questions
Is this an OEM part?
No. This listing is for a replacement part unless it explicitly states otherwise. Manufacturer names and part numbers identify intended applications.
How should I confirm fitment?
Compare the part number, equipment model, roller dimensions, bolt spacing and machine serial number. For machines with serial-number breaks, consult the model-specific parts diagram.
Part Summary
Keywords: Pair of Bottom Track Rollers, Kubota KX040-4, KX121-3 and KX121-3ST mini excavators, RD148-21700, RD118-21700, Kubota KX121-3, KX121-3SS, KX121-3ST, KX040-4, heavy machinery parts & accessories.
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.