Replacement Hydraulic Arm Cylinder for Kubota (PN: RD118-67603) Excavator Models KX121-3, KX121-3S, KX121-3ST
Specifications for 1020529831
| Category | Replacement Welded Hydraulic Cylinders » Excavator » Compact/Mini Excavator |
|---|---|
| Fits Manufacturer | Kubota Hydraulic Cylinders |
| Models | Kubota KX121-3, Kubota KX121-3S, Kubota KX121-3ST |
| Function | Arm Crowd Dipper Dipperstick Dip Stick Ditching |
| Features | Double-Acting Rod Hydraulic Cylinder (DAR) |
| SKU | 1020529831 |
|---|---|
| Weight | 88 lbs |
| Bore | 75mm |
|---|---|
| Rod | 45mm |
| Stroke | 25.30″ |
| Closed | 38.67″ |
| Open Extended Length | 63.97″ |
| Operating Pressure (PSI) | 3000 |
| Base End Mount Type | Drilled Thru Lug |
| Base Pin Size | 1.79″ |
| Base Mount Width | 2.35″ |
| Rod End Mount Type | Drilled Thru Lug |
| Rod Pin Size | 1.79″ |
| Rod Mount Width | 2.35″ |
| Extend Port/Plunger | 1/2 BSPP |
| Retract Port/Plunger | 1/2 BSPP |
| Old OEM PNs | RD118-67600, RD118-67602 |
Description
This performance-built replacement hydraulic arm cylinder fits Kubota KX121-3, KX121-3S, and KX121-3ST excavators. It replaces OEM part number RD118-67603 and meets or exceeds original performance specs. Stroke, pin centers, and ports follow the KX121-3 arm layout, so install stays simple.
A double-acting design powers arm crowd, dipper, dipperstick, and ditching with steady force. Smooth extension and retraction help keep trench walls clean, bottoms flat, and grading accurate. Durable welded construction and quality seals handle daily trenching, service work, and light commercial jobs. The cylinder weighs about 88 pounds. Two techs can handle it with normal shop lifting gear.
This warranty-backed replacement part restores normal digging force and cycle speed on your KX121-3 series. Order with FASTSHIP by 12:00 CST for same-day shipping. Install this cylinder, keep the excavator productive, and Demolish Downtime.
75mm
45mm
25.30″
38.67″
63.97″
3000
Drilled Thru Lug
1.79″
2.35″
Drilled Thru Lug
1.79″
2.35″
1/2 BSPP
1/2 BSPP
RD118-67600, RD118-67602
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.
