John Deere 50 Series Bottom Rollers

PRODUCT DETAILS

This bottom roller serves as an aftermarket replacement for multiple John Deere and Hitachi mini excavator models. It features clear compatibility and reliable quality.

I. Core Compatible Models
This bottom roller is guaranteed to fit the following models precisely:
John Deere: 50D, 50G, 50P
Hitachi: ZX50u-2, ZX50u-3

II. Critical Ordering Note
There are significant differences between bottom rollers for John Deere 50 series mini excavators. Please clearly specify your exact model when ordering to avoid mismatches.

III. Functional Role and Structural Design
Core Function: As a key load-bearing component of the undercarriage, the bottom roller supports the machine’s weight during travel and operation, while guiding the track to ensure stable movement. It directly impacts equipment operational safety and track lifespan.
Structural Features:
Adopts a single-flange design, manufactured strictly to original specifications, ensuring both compatibility and durability.
The flange fits into the central guide system of the track, effectively preventing derailment. The machine’s weight is borne by the outer side of the flange, ensuring stable structural performance.

IV. Quality Assurance and Durability Design
Equipped with high-quality double-lip seals, the roller effectively blocks the intrusion of dirt and debris while retaining lubricating grease. This significantly reduces internal wear and extends the roller’s service life, ensuring long-term stable operation.

V. Alternate Part Number Explanation
John Deere dealer part number: 9239528 (main number)
Hitachi dealer part numbers: FYD00004154, FYD00004165 (for corresponding models)

VI. Related Undercarriage Parts (One-Stop Procurement)
For John Deere 50D:
Sprocket: 2054978
Bottom roller: 9239528 (this product)
Top roller: 9239529 or 4718355 (varies by serial number)
Idler: 9237507 or 9318048 (varies by serial number; please verify)
For John Deere 50G:
Sprocket: 2054978
Bottom roller: 9239528 (this product)
Top roller: 4718355