Skip to product information
2X Bottom Roller RD148-21700 Fit Kubota KX040-4 KX121-3 KX121-3ST Mini Excavator

2X Bottom Roller RD148-21700 Fit Kubota KX040-4 KX121-3 KX121-3ST Mini Excavator

Write Review

Your Source for Aftermarket Parts

$349.89
Sale price  $349.89 Regular price 

Available to Order

Usually ships in 2–4 business days.
This Bottom Roller is a high-quality aftermarket replacement part compatible with Kubota KX040-4, KX121-3, and KX121-3ST and matches OEM Part# RD148-21700.
Industrial Retailer parts support representative

Need help finding the right part? Talk with a parts expert today.

Parts Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT

Live Chat: Available 24/7

Call us

I needed a forklift part and wasn’t sure which one fit. They asked for the model and serial number, got back to me quickly, and made sure I ordered the right one. Really helpful.

Randy W. — Verified customer

Product Overview

This set of two bottom rollers is engineered to provide durable support and smooth track operation for mini excavators. These components are critical for maintaining the undercarriage and ensuring efficient machine movement in tough terrain.

Key Features & Performance

  • High-Grade Construction:Manufactured with hardened materials to resist wear and prolong service life.
  • Precision Alignment:Designed to meet rigorous standards for a precise fit on specified models.
  • Reliable Operation:Internal seals protect bearings from dirt and debris to prevent premature failure.

Fitment & Compatibility

  • Compatible Models:Kubota KX040-4, KX121-3, KX121-3ST
  • Machine Type:Mini Excavator

Technical Specifications

  • Part Number(s):RD148-21700
  • Product Category:Bottom Track Roller
  • Quantity:2 Rollers

Frequently Asked Questions

  • Q:What is included in this product listing? A:This listing provides a set of two bottom rollers for the specified machine models.
  • Q:Do these rollers match original equipment specifications? A:Yes, these components are engineered to match the dimensions and performance of the original parts.

Compatibility may vary by serial number. Verify fitment before purchase.

Customers also purchased

Keywords (Used as search references only) View IP policy.