Description
Overview:
The Pin Position 2 Boom Base (EC17/18) is a heavy-duty pivot pin for the boom base joint on selected Kubota mini excavators. Built from robust, precision-machined steel with a corrosion-resistant finish, it forms the main hinge point that lets the boom articulate smoothly while resisting wear under shock loads. By restoring a tight, accurate pivot at the base of the boom, it helps maintain clean digging lines and predictable control. This pin is intended for routine replacement during pin-and-bush servicing or when excessive play is detected at the boom base. It suits Kubota models such as U15-3 and U17-3, and is referenced as part number 202 138 / 202138 on EC17/18 parts diagrams.
Key Features:
- Position 2 boom base pivot pin as per EC17/18 diagrams for accurate placement
- High-strength, machined steel construction for durability in demanding site conditions
- Corrosion-resistant finish to help protect against rust in wet or muddy environments
- Cross-drilled to accept the correct retaining hardware for secure installation
- Dimensions matched to the listed Kubota models for a dependable, direct fit
- Helps reduce boom play and restore smooth, precise movement at the base joint
- Suitable for use with standard bushes and seals specified for your machine
- Designed for straightforward replacement using typical workshop tools to minimise downtime
- Ideal for preventative maintenance schedules and pin-and-bush overhauls
- Supports stable operation under digging, lifting, and slewing loads
Typical Applications:
Replacement of a worn or corroded boom base pin, restoration of tight pivoting after high-hours use, and routine pin-and-bush servicing on Kubota mini excavators. Useful when addressing looseness, knocking, or misalignment at the boom base to maintain safe, predictable digging and lifting performance.
Also known as:
Lower boom pin, boom foot pin, base pivot pin, articulation pin, main boom hinge pin, excavator boom joint pin, pivot pin (boom base).
Fits Models:
KX41-3, KX413, U15-3, U153, U17-3, U173
Alternate Part Numbers:
202138, 202 138
