Part number lookup

U45ST Replacement Parts

Cross-reference and compare 18 replacement listings for OEM / aftermarket part number U45ST. Use this part-number page — not a generic equipment or brand hub — to review price, availability, and fitment before ordering.

18 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$207.99Engine Radiator Assy RD538-42300 for Kubota KX161-3S KX161-3ST KX161-3SCA KX161-3STCA U45-3S ExcavatorKubotaEngine Radiator Assy RD538-42300 for Kubota KX161-3S KX161-3ST KX161-3SCA KX161-3STCA U45-3S Excavator$354.99Track Roller RD411-21700 for Kubota Excavator KX057-4 KX161-3 U45ST U45-3 U55CAKubotaTrack Roller RD411-21700 for Kubota Excavator KX057-4 KX161-3 U45ST U45-3 U55CA$274.993Pcs Cylinder Head Cover Gasket 1G911-14523 for Kubota Engine V1903 V2203 V2003 V2403Kubota3Pcs Cylinder Head Cover Gasket 1G911-14523 for Kubota Engine V1903 V2203 V2003 V2403$144.14Arm Cylinder Seal Kit RD411-71640 for Kubota Excavator U45-3 U45-3S U45-3ST U50-3KubotaArm Cylinder Seal Kit RD411-71640 for Kubota Excavator U45-3 U45-3S U45-3ST U50-3$134.96Boom Cylinder Seal Kit RD411-71400 for Kubota Excavator U45-3 U45-3S U45-3ST U50-3KubotaBoom Cylinder Seal Kit RD411-71400 for Kubota Excavator U45-3 U45-3S U45-3ST U50-3$104.18Bucket Cylinder Seal Kit RD411-71820 for Kubota KX121-3 U45-3 U50-3KubotaBucket Cylinder Seal Kit RD411-71820 for Kubota KX121-3 U45-3 U50-3$74.00Cylinder Block for Kubota Engine V2403 Excavator KX121-3 KX161-3 U45ST U45S U45-3 U45-3SKubotaCylinder Block for Kubota Engine V2403 Excavator KX121-3 KX161-3 U45ST U45S U45-3 U45-3S$3,395.30Front Idler RD411-22303 for Kubota Excavator KX161-3 KX161-3S KX161-3ST KX161-3 KX161-3SCA KX161-3STCA U45S U45ST U45-3 U45-3S U45-3ST U50-3KubotaFront Idler RD411-22303 for Kubota Excavator KX161-3 KX161-3S KX161-3ST KX161-3 KX161-3SCA KX161-3STCA U45S U45ST U45-3 U45-3S U45-3ST U50-3$975.00Fuel Injection Pump 1G787-51010 for Kubota Engine V2203 V2403 Excavator KX121-3 KX161-3 U45S Loader R520SKubotaFuel Injection Pump 1G787-51010 for Kubota Engine V2203 V2403 Excavator KX121-3 KX161-3 U45S Loader R520S$967.99Hydraulic Filter RD431-62122 for Kubota Excavator KX121 KX161 U45 KX121-3S KX121-3ST KX161-3S KX161-3ST U45-3SKubotaHydraulic Filter RD431-62122 for Kubota Excavator KX121 KX161 U45 KX121-3S KX121-3ST KX161-3S KX161-3ST U45-3S$50.00Oil Filler Cap for Kubota U35 U45S F2100 F2260 F2400 F2560 F3060 FZ2100 FZ2400 GF1800 G2160 MX5200F TG1860KubotaOil Filler Cap for Kubota U35 U45S F2100 F2260 F2400 F2560 F3060 FZ2100 FZ2400 GF1800 G2160 MX5200F TG1860$59.78Piston Pump Assy RD431-61110 for Kubota Excavator U45 U45-3S U45-3ST U45S U45ST U50-3KubotaPiston Pump Assy RD431-61110 for Kubota Excavator U45 U45-3S U45-3ST U45S U45ST U50-3$6,126.38Rear Oil Seal 16433-04460 1643304460 for Kubota KX033-4 KX040-4 KX121-3ST KX91-3S2 U35-4 U35-S2 U45ST MX5200FKubotaRear Oil Seal 16433-04460 1643304460 for Kubota KX033-4 KX040-4 KX121-3ST KX91-3S2 U35-4 U35-S2 U45ST MX5200F$61.32Sprocket RD411-14432 for Kubota Excavator KX057-4 KX057-5 KX161-3 KX161-3S KX161-3ST U45S U45ST U55 U55-4 U55-5KubotaSprocket RD411-14432 for Kubota Excavator KX057-4 KX057-5 KX161-3 KX161-3S KX161-3ST U45S U45ST U55 U55-4 U55-5$292.00Swing Cylinder Seal Kit RD411-71270 for Kubota Excavator U45-3 U45-3S U45-3ST U50-3KubotaSwing Cylinder Seal Kit RD411-71270 for Kubota Excavator U45-3 U45-3S U45-3ST U50-3$122.64Track Roller RD411-21740 for Kubota Excavator KX057-4 KX161-3 U45-3 U45S U50-3 U55 U55-4KubotaTrack Roller RD411-21740 for Kubota Excavator KX057-4 KX161-3 U45-3 U45S U50-3 U55 U55-4$155.00Track Roller RD411-21740 for Kubota Excavator KX057-4 KX161-3 U45-3 U45S U50-3 U55 U55-4KubotaTrack Roller RD411-21740 for Kubota Excavator KX057-4 KX161-3 U45-3 U45S U50-3 U55 U55-4$155.00

Part Numbers and Cross References

RD411-42200KX121KX161KX121-3KX121-3SKX161-3KX161-3SKX161-3STU45STRD538-42300RD411-21700RD411-21703RD441-21702KX057-4CAKX161-3SCAKX161-3STCA1G911-14523V1903V2203V2003V2403KX121-3STMX5200FRD411-71640U45-3SU45-3STRD411-71400RD411-71820KX121-3SCAKX121-3STCA1A085-010141A085-010181A261-01010RD411-22303RD411-22306RD411-22307R520S1G787-51013RD431-62120RD431-62122HY9036815852-3314015852-3314315221-3314015221-3314214941-33140F2100F2260F2400F2560F2560ERD431-61110RD431-61112RD431-61115RD441-61110RD441-6111416433-04460KX040-4KX91-3S2U35-S2SQ-1200-USASQ-3170-USASQ-3250-USA-SWL2501FL2501HRD411-14432KX057-5RD411-71270RD411-21740

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 · KX161-3SCA
  • Kubota · KX161-3STCA
  • Kubota · U45-3S
  • Kubota · s: Fit For Kubota Excavator: KX161-3S, KX161-3ST, U45S, U45ST
  • Kubota · KX057-4
  • Kubota · KX057-4CA
  • Kubota · U45-3
  • Kubota · U45-3ST

Frequently Asked Questions

What parts replace OEM number U45ST?

This page lists 18 replacement listings indexed under U45ST. Compare cross references, applications, and pricing before ordering.

How do I confirm fitment for U45ST?

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 U45ST 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.

Confirm fitment

Send machine details before ordering high-risk parts.