Part number lookup

KX121 Replacement Parts

Cross-reference and compare 7 replacement listings for OEM / aftermarket part number KX121. Use this part-number page — not a generic equipment or brand hub — to review price, availability, and fitment before ordering.

7 Matching Products

Air Cleaner Assy RD411-42200 for Kubota KX057 KX121 KX161 U45 U48 U55 ExcavatorKubotaAir Cleaner Assy RD411-42200 for Kubota KX057 KX121 KX161 U45 U48 U55 Excavator$207.99Hydraulic Pump RD101-61110 RD101-61112 for Kubota Excavator KX121 KX121-2KubotaHydraulic Pump RD101-61110 RD101-61112 for Kubota Excavator KX121 KX121-2$2,475.00Thermostat Housing Cover 15321-73260 for Kubota Excavator KX040 KX101 Tractor L235 L245KubotaThermostat Housing Cover 15321-73260 for Kubota Excavator KX040 KX101 Tractor L235 L245$59.99Air Rest Sensor 15831-11090 for Kubota Excavator KX121 KX161 KX91 Tractor L3010DT L3010FKubotaAir Rest Sensor 15831-11090 for Kubota Excavator KX121 KX161 KX91 Tractor L3010DT L3010F$89.22Fuel Injection Pump 16454-51010 16454-51015 for Kubota Engine V1903 V2203 Excavator KX161 KX121KubotaFuel Injection Pump 16454-51010 16454-51015 for Kubota Engine V1903 V2203 Excavator KX161 KX121$1,004.03Thumb Cylinder 70091-00096 for Kubota KX121-3 KX91 KX71 U45 U55 U55-4 KX057 KX057-4 Mini ExcavatorsKubotaThumb Cylinder 70091-00096 for Kubota KX121-3 KX91 KX71 U45 U55 U55-4 KX057 KX057-4 Mini Excavators$803.99V2203 V2403 Complete Cylinder Head With Valves For Kubota Engine Bobcat 773 331 S185KubotaV2203 V2403 Complete Cylinder Head With Valves For Kubota Engine Bobcat 773 331 S185$535.00

Part Numbers and Cross References

RD411-42200KX121KX161KX121-3KX121-3SKX161-3KX161-3SKX161-3STU45STRD101-61110RD101-61112KX121-215321-73260KX040KX101KX151KH-110KX040-4KX121-3ST15831-11090258171SVL95KX161-2KX91-2L2900DTL3010DTL3300DT094500-584016454-5101516454-51010V1903V2203V2403-ML3600DTL3710DT70091-00152KX057-4

Applications and Fitment Summary

  • Kubota · KX057
  • Kubota · KX121
  • Kubota · KX121-3
  • Kubota · KX121-3S
  • Kubota · KX161
  • Kubota · KX161-3
  • Kubota · KX161-3S
  • Kubota · KX161-3ST
  • Kubota · U45
  • Kubota · U45S
  • Kubota · U45ST
  • Kubota · U48
  • Kubota · U55
  • Kubota · s: Kubota Excavator: KX057, KX121, KX161, U45, U48, U55, KX121-3, KX121-3S, KX161-3, KX161-3S, KX161-3ST, U45S, U45ST
  • Kubota · s: For Kubota Excavator: KX057, KX121, KX161, U45, U48, U55, KX121-3, KX121-3S, KX161-3, KX161-3S, KX161-3ST, U45S, U45ST
  • Kubota · Kubota Excavator: KX057, KX121, KX161, U45, U48, U55, KX121-3, KX121-3S, KX161-3, KX161-3S, KX161-3ST, U45S, U45ST
  • Kubota · s : KX121, KX121-2
  • Part Number
  • Kubota · KX040
  • Kubota · s: Kubota Excavator: KX040, KX101, KX121, KX161, KX151, KH-110, KX040-4, KX121-2, KX121-3, KX121-3S, KX121-3ST, KX161-2, KX161-3, KX161-3S, KX161-3ST, KH-101, KH-151, KH-191, KH-66, KH-66H KCL, KH-91, KH-H, U45, U45S, U45ST Kubota Tractor: L2050DT, L2050F, L2250F, L235, L245, L245F, L245H, L2550DT, L2600DT, L2850DT, L2900DT, L3010DT, L305F, L3200DT, L3200H, L3240HST, L3250DT, L3250F, L3300DT, L3400DT, L3400H, L3410DT, L3430DT, L3430HST, L345, L3600DT, L3710DT, L3830DT, L405, L4150DT, L4200DT, L4200F, L4240HST, L4240HSTC, L4300F, L4310DT, L4310F, L4330HST(C), L4350DT, L4400DT, L4400H, L4600DT, L4600H, L4610DT, L4630HST, L5030HST(C), L5240HSTC, L5740HST, L5740HSTC, L2250DT, L2350DT, L2350F, L245DT, L2550F, L2600F, L275, L2850F, L295DT, L295F, L3000DT, L3000F, L3010F, L305DT, L3130DT, L3130HST, L3240DT, L345DT, L35, L3540HST, L355SS, L3750, L3750DT, L3800DT, L3800H, L405DT, L4150, L4300DT, L4330DT, L4630DT, L4850DT, L5240HST, L5450DT, L2500DT, L2500F, L2501D, L2501F, L2501H, L2550DT-GST, L2550-TOW, L2650DT, L2650DT-GST, L2650DT-WET, L2650F, L2800DT, L2800HST, L2800F, L2850DT-GST, L2900DT-GST, L2900F, L2950DT, L2950DT-GST, L2950DT-WET, L2950F, L3010GST, L3010HST, L3130GST, L3130F, L3200F, L3240GST, L3240DT-3, L3240F, L3240F-3, L3240GST-3, L3240HST-3, L3240HSTC, L3240HSTC-3, L3300DT-GST, L3300F, L3350DT, L3400HST, L3400F, L3410GST, L3410HST, L3430GST, L3430HST(C), L3450DT, L3450DT-GST, L3450DT-WET, L3450F, L3540GST, L3540GST-3, L3540HST-3, L3540HSTC, L3540HSTC-3, L3560DT, L3560GST, L3560HST, L3560HSTC, L3560HSTC-LIMITED, L3560HST-LIMITED, L3600DT-C, L3600DT-GST, L3600DT-GST-C, L3650DT, L3650DT-GST, L3650DT-WET, L3650F, L3700SU, L3710GST, L3710HST, L3710DT-HST-C, L3800F, L3830GST, L3830HST, L3830F, L3940DT, L3940GST, L3940HST, L3940DT-3, L3940GST-3, L3940HST-3, L3940HSTC, L3940HSTC-3, L4060DT, L4060GST, L4060HST, L4060HSTC, L4060HSTC-LIMITED, L4060HST-LIMITED, L4150DT-N, L4200DT-C, L4200DT-GST, L4200DT-GST-C, L4200F-C, L4200F-GST, L4240DT, L4240GST, L4240DT-3, L4240GST-3, L4240HST-3, L4240HSTC-3, L4310GST, L4310HST, L4310DT-GST-C/HST-C, L4330GST, L4400F, L4600F, L4610DT-GST, L4610DT-HST, L4610DT-HST-C, L4630GST(C), L4740GST, L4740HST, L4740GST-3, L4740HST-3, L4740HSTC, L4740HSTC-3, L4760GST, L4760HST, L4760HSTC, L48, L5030GST, L5040GST, L5040GST-3, L5060GST, L5460HST, L5460HSTC, L6060HST, L6060HSTC, MX5400DTC, MX5400DTHC, MX6000DTHC, MX4700DT, MX4700F, MX4700H, MX5000DT, MX5000F, MX5000SU, MX5000, MX5100DT, MX5100H, MX5100F, M4700, M4030SU-TF, M4800SUD-F, M4800SU-F, M4900, M4900-CAB, M4900DT-CAB, M4900SU, M4900SUDT, M5400DT-N, M5700-CAB, M5700DT-CAB, M5700HD, M5700HDC M4900DT, M5400, M5400DT, M5700DH, M5700DTN, M4030SU, M4700DT, M5700, M5700DHC, M5700DT, STV32, STV36, STV40 Kubota Loader: RW25, RW30 Kubota Generator: GV-1125Q-60-KTC, GV3120-60-B, GV-3170(SW), GV-3190Q-60, GV-3240, GV-3240SW, GV-3250Q-60-SW, KJ-S130D-USA, KJ-S130DX-USA, KJ-S150V-USA, KJ-S150VX-USA, KJ-T210V-USA, KJ-T210VX-USA, KJ-T270F-SW-USA, KJ-T270FX-SW-USA, SQ-1140-USA, SQ-1200-USA, SQ-3170-USA, SQ-3250-USA-SW
  • Kubota · s: Fit For Kubota Excavator: KX121, KX121-3, KX161, KX057-4
  • Kubota · s: Fit For Kubota Excavator: KX057-4, KX121, KX121-3, KX121-3S, KX121-3ST, KX161, KX161-3, U35, U35-4, U35-S2, U35S, U45S, U45ST, U55, U55-4, KX71, KX91
  • Kubota · s: Fit For Kubota Excavator KX057-4, KX121, KX121-3, KX121-3S, KX121-3ST, KX161, KX161-3, U35, U35-4, U35-S2, U35S, U45S, U45ST, U55, U55-4, KX71, KX91
  • Kubota · Kutoba KX121-2 KX161-2 KX161 L4200 KX121 R520 L4310 L4300 L4610 R510B R510 Engine

Frequently Asked Questions

What parts replace OEM number KX121?

This page lists 7 replacement listings indexed under KX121. Compare cross references, applications, and pricing before ordering.

How do I confirm fitment for KX121?

Match the stamped part number first, then verify machine model, engine code, serial number, mounting points, and photos of your old part before checkout.

Can I request a quote if KX121 is not an exact match?

Yes. Use the fitment inquiry form with your machine plate, engine model, and photos. Support can review alternatives or cross references.

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