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Kubota Excavator Undercarriage Parts

We supply aftermarket undercarriage parts for Kubota excavators, each sourced from a partner factory that specializes in that part. Send your OEM part number or machine model for a fitment check and quote.

This page lists 11 Kubota part numbers across track rollers, carrier rollers, front idlers, sprockets, for models including KX040-4, KX057-4, KX151, KX161-3, KX61-2, U35. Part numbers can change within a model series, so include your machine serial number when you ask.

Complete parts lists by machine

Kubota U35 undercarriage parts Kubota KX040-4 undercarriage parts Kubota KX057-4 undercarriage parts Kubota KX151 undercarriage parts

Kubota Track Rollers

Kubota KX040-4 Track Roller

RD118-21700, RD148-21700

Also fits: KX121-3, KX121-3S, KX121-3ST

Kubota KX161-3 Track Roller

RD441-21702, RD411-21700, RD411-21703

Also fits: KX161-3S, KX161-3ST, KX057-4, U45-3, U55-4

Kubota U35 Track Roller

RB511-21702

Also fits: U35S, U35-S2, KX71-3, KX91-3

Kubota Carrier Rollers

Kubota KX057-4 Carrier Roller

RD461-21900

Also fits: KX057-5, KX040-4, KX040-5, KX121-3, KX161-3

Kubota U35 Carrier Roller

RC411-21903

Also fits: U35S, U25S, KX033-4, KX71-3, KX91-3

Kubota Front Idlers

Kubota KX151 Front Idler

RD208-21300

Also fits: KX161-2

Kubota Sprockets

Kubota KX040-4 Sprocket

RD118-14433, RD118-14430, RD148-14430

Also fits: KX121-3, KX121-3S, KX121-3ST

Kubota KX057-4 Sprocket

RD411-14432, RD411-14430, RD546-14430

Also fits: KX057-5, KX161-3, U45-3, U48-4, U55-4

Kubota KX151 Sprocket

68678-14430

Also fits: KX161-2

Kubota KX61-2 Sprocket

68318-14430

Also fits: KX61, KX71, KX71-2

Kubota U35 Sprocket

RC788-14430, RC411-14432, RC411-14430

Also fits: U35S, U35-S2, KX033-4, KX71-3, KX91-3

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