Replacement Hydraulic Boom Cylinder for Kubota (PN: RD138-67500) Excavator Models KX121-3S, KX121-3ST
$3,000.00
Specifications for 1019719274
| Category | Replacement Welded Rod Hydraulic Cylinders » Excavator » Compact/Mini Excavator |
|---|---|
| Fits Manufacturer | Kubota Hydraulic Cylinders |
| Models | Kubota KX121-3S, Kubota KX121-3ST |
| Function | Boom |
| Features | Double-Acting Rod Hydraulic Cylinder (DAR) |
| SKU | 1019719274 |
|---|---|
| Weight | 150 lbs |
| Bore | 85mm |
|---|---|
| Rod | 50mm |
| Stroke | 25.39″ |
| Closed | 39.25″ |
| Open Extended Length | 64.64″ |
| Operating Pressure (PSI) | 3000 |
| Base End Mount Type | Drilled Thru Lug |
| Base Pin Size | 1.977″ |
| Base Mount Width | 2.75″ |
| Rod End Mount Type | Drilled Thru Lug |
| Rod Pin Size | 1.977″ |
| Rod Mount Width | 2.75″ |
| Extend Port/Plunger | 1/2 BSPP |
| Retract Port/Plunger | 1/2 BSPP |
| Old OEM PNs | RD118-67502, RD138-71310, RD138-71320 |
Description
This replacement boom cylinder for the Kubota KX121-3S brings back strong lift power and control to compact excavators. It replaces OEM part number RD138-67500 and fits Kubota KX121-3S and KX121-3ST Super Series models, including Tier 4 versions. The welded rod, double-acting build gives smooth boom motion and steady performance in tight or rough spaces.
This Performance-Built cylinder meets or beats OEM standards for tough jobs. It comes with a full warranty and qualifies for FASTSHIP—order before 12:00 CST for same-day shipping. Demolish downtime with a direct-fit cylinder that gives you solid boom control and reliable lift when you need it most.
85mm
50mm
25.39″
39.25″
64.64″
3000
Drilled Thru Lug
1.977″
2.75″
Drilled Thru Lug
1.977″
2.75″
1/2 BSPP
1/2 BSPP
RD118-67502, RD138-71310, RD138-71320
Returning Merchandise
New and un-used stock items maybe returned for refund within 30 days of purchase. No returns are accepted without prior authorization, call 888-771-1894 or email sales@hydrauliccylindersinc.com to receive a return authorization number. Make sure to properly package your item to avoid damage in transit. Hydraulic Cylinders Inc. is not responsible for any shipping charges or damages for the return of product to Hydraulic Cylinders Inc. It is the responsibility of the sender to provide for all shipping, handling, and insurance charges.
Warranty Coverage:
Hydraulic Cylinders Inc. warrants its Replacement Welded Rod Cylinders against defects in materials and workmanship for 12 months from the date of purchase.
Exclusions & Conditions:
- Disassembly voids warranty coverage.
- Misuse, misapplication, or unauthorized modification is not covered.
- HCI does not provide engineering guidance or warrant product fitness for any specific application.
- It is the customer’s responsibility to ensure product suitability and compliance with all regulations and application requirements.
Claims Process:
Contact Hydraulic Cylinders, Inc. directly to initiate a warranty review. Claims require return and evaluation of the product.
