Hyundai 81Q414390 Backup Ring | fits R140LC-9, R140LC-9A, R140LC-9S
SKU 81Q414390
In stock: 2 available · Ships from Kelowna BC
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Match the listed SKU and verified cross-references to your current part number. If fitment is not listed, send AIM Rentals the machine details and current part number before ordering.
Hyundai 81Q414390 Backup Ring
The Hyundai 81Q414390 (catalog: 81Q4-14390) is a genuine Hyundai backup ring for the track adjuster undercarriage cylinder on Hyundai R140LC-9 series crawler excavators. This OEM seal component prevents hydraulic fluid bypass. Stocked in Kelowna, BC and ships Canada-wide.
Specifications
- Part Number: 81Q414390 (alt: 81Q4-14390)
- Type: Backup Ring (Ring-Back Up)
- Brand: Genuine Hyundai
- Application: Crawler Excavator Undercarriage Adjuster Cylinder
Fitment
Confirmed fitment for the following Hyundai crawler excavators:
- Hyundai R140LC-9
- Hyundai R140LC-9A
- Hyundai R140LC-9S
FAQ
Is this a genuine Hyundai OEM part?
Yes. Part number 81Q4-14390 is a Hyundai HCE OEM catalog part confirmed in the R140LC-9A undercarriage adjust component group.
What does a backup ring do in a hydraulic cylinder?
A backup ring supports the O-ring or primary seal, preventing it from extruding into the clearance gap under high pressure. When the backup ring fails, the primary seal is damaged quickly, causing hydraulic leaks. Replace backup rings whenever the primary seals are replaced.
Does this ship outside BC?
Yes — we ship Canada-wide from Kelowna, BC.
Can I buy a complete seal kit instead?
Yes — contact us at sales@rentwithaim.ca for complete track adjuster seal kit availability for your R140LC-9 series machine.
| Make | Model | Year | Engine / Spec |
|---|---|---|---|
| [["Hyundai","R140LC-9A"],["Hyundai","R140LC-9S"],["Hyundai","R140LC-9"]] | |||
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Ships from Kelowna BC after order review.
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