Hitachi 4259297 Bushing | Hitachi Excavator Parts

The 4259297 bushing is an essential replacement part for Hitachi machinery. Designed to meet the highest industry standards, this bushing ensures optimal performance and durability for your equipment. Crafted with precision and expertise, it guarantees a perfect fit and seamless integration with your Hitachi machine. Made from top-quality materials, this bushing is engineered to withstand the most demanding operating conditions. Its robust construction enhances the longevity of your machinery, reducing the need for frequent replacements and minimizing downtime. The 4259297 bushing is meticulously designed to provide superior functionality and reliability. Its smooth surface finish and precise dimensions contribute to smooth operation and reduced friction, resulting in improved efficiency and performance of your Hitachi equipment. Whether you are a professional contractor or an equipment enthusiast, this bushing is a must-have for maintaining the optimal functionality of your Hitachi machinery. Invest in the 4259297 bushing for long-lasting performance and peace of mind.

Hitachi 4259297 Bushing Specifications & Fitment

What it is: Heavy-equipment bushing designed for tight-tolerance pivot joints where wear control and alignment matter.

• Part number: 4259297
• SKU: KM-4259297
• Typical use: Boom/arm/bucket linkages, work equipment pivots, and high-wear joints.

Key measurements to confirm

To ensure correct fit, match the following measurements to your machine’s worn component or OEM spec:

• Inside Diameter (ID): ___
• Outside Diameter (OD): ___
• Overall Length: ___

Quality notes

• Designed for consistent clearance and long service life when installed with proper lubrication.
• Replace pins and bushings as a set when wear is uneven to prevent premature failure.

Installation tip

Measure the bore, pin, and bushing after press-fit. Use proper tooling and lubrication, and re-check end-play after assembly.

Need help confirming dimensions? Send your machine model and the measurements above and we’ll verify fitment.

Komatsu maintenance notes (quick guide)

• Early-life greasing: For excavators, Komatsu guidance calls for greasing work equipment pins every 10 hours for the first 50 hours, and greasing again after water work.
• Clearance control: Komatsu linkage manuals commonly specify pin–bushing clearance targets and a typical service limit around 1.0 mm for many joints, often managed with shims.
• Tracked machines: For undercarriage track joints, pin/bushing turning is condition- and wear-window dependent; abrasive sites can accelerate wear substantially.