RD148-21700 RD14821700 Bottom Lower Track Roller for Kubota KX 121-3 KX 121-3SS KX040-4 + More

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  • Part Number: RD148-21700
  • Bottom Track Roller
  • Fits Kubota: KX 121-3, KX 121-3 SS, KX 121-3ST, KX 040-4
  • Sold As - Individual Roller

Fitment Check

Verify your machine model, part number, and undercarriage configuration before ordering.

$121.99 $203.99 Save $82.00
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Part Number

RD148-21700
Reference Part No. RD14821700
Product Type Bottom Roller

Fitment

Kubota: KX 121-3, KX 121-3 SS, KX 121-3ST, KX 040-4

Application

Undercarriage Position Bottom Track Roller
Equipment Type Mini Excavator
Function Supports track movement, machine weight, and undercarriage performance

Trust & Assurance

12-Month Warranty
Free Shipping in the USA
Proven Quality
Trusted by Contractors

Same machine series may use different undercarriage parts. Please confirm RD148-21700 or RD14821700 matches your existing roller before ordering.

Product Description

  • This aftermarket replacement bottom track roller is designed for compatible Kubota mini excavator models and undercarriage applications.
  • Bottom track rollers help carry machine weight while supporting and guiding the track during travel, digging, and daily jobsite operation.
  • Built for Kubota KX series compact excavation work, this roller helps maintain stable travel and smoother undercarriage support on listed machines.
  • Reference part numbers RD148-21700 and RD14821700 can be used to confirm replacement compatibility with your existing roller assembly.
  • Fits Kubota models including KX 121-3, KX 121-3 SS, KX 121-3ST, KX 040-4. Please verify your machine model and part number before ordering.

Key Features

Direct Replacement: Replacement bottom track roller using reference part numbers RD148-21700 and RD14821700 for compatible Kubota equipment.

Track Support & Guidance: Helps carry machine weight while supporting and guiding the track during travel and digging.

Kubota KX121 / KX040 Fitment: Designed for listed Kubota KX121 and KX040 mini excavator undercarriage applications.

Smooth Roller Operation: Supports smooth rotation to help reduce vibration, noise, and track wear.

Warranty

12-Month Warranty.
Every rubber track, roller, sprocket, and idler we sell is backed by a 12-month warranty.
If it doesn’t hold up, we make it right.

Shipping

Free Shipping in the USA

We keep inventory stocked and offer fast nationwide shipping, often same or next business day, from strategically located warehouses.

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