Upper Carrier Roller 4392416 for Hitachi EX30-2 EX40 EX45-2 & John Deere 27C 35C 50C 60D
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
| Hitachi | EX27U, EX30-2, EX30U, EX40, EX45-2 and related compact excavators |
|---|---|
| John Deere | 27C, 35C, 50C, 60D — verify roller dimensions/part reference |
Product Overview
A seized, flat-spotted or loose carrier roller increases drag and lets the track chain run poorly across the upper frame. Replacing a worn roller helps keep the chain supported and reduces unnecessary wear on links, sprockets and the track frame.
Undercarriage fitment can change by serial number and track-frame specification. Match the roller dimensions, mounting spacing and original part number before installation.
Key Features & Performance
- Supports the upper track-chain run
- Helps maintain smooth track travel and alignment
- Service replacement for seized, noisy or worn carrier rollers
- Cross-references 4392416 on compatible Hitachi applications
Replaces Part Numbers
- 4392416
Technical Specifications
- Component: Upper / top carrier roller
- System: Excavator undercarriage
Frequently Asked Questions
Q: What are signs the upper roller is worn?
A: Grinding, a roller that will not turn, visible flat spots, side play or abnormal track-chain contact are common signs.
Q: Should I replace undercarriage parts in pairs?
A: Inspect the complete undercarriage; uneven wear elsewhere can shorten the life of a new roller.
Fitment can vary by serial number, production date, engine configuration or prior repairs. Verify compatibility using the part numbers and application details listed above before ordering.