Hitachi 4258784 Bushing | Hitachi Excavator Parts
Warranty: SAME AS OEM WARRANTY
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Product Description
Introducing the 4258784 bushing from Hitachi parts, a reliable and durable component designed to enhance the performance and longevity of various machinery. This high-quality bushing is an essential part of many industrial applications, providing stability, support, and reduced friction.
The 4258784 bushing is meticulously engineered to fit seamlessly into Hitachi equipment, ensuring optimal functionality and compatibility. Its precise design and construction guarantee a secure fit, minimizing the risk of wear and tear, and improving the overall efficiency of your machinery.
Manufactured using top-grade materials and advanced production techniques, this bushing boasts exceptional strength and resilience. It is built to withstand the harshest operating conditions, including heavy loads, vibrations, and extreme temperatures, without compromising its performance.
With a focus on longevity, the 4258784 bushing is designed to resist corrosion, rust, and other forms of deterioration, ensuring a prolonged service life and reduced maintenance requirements. Its robust construction guarantees reliable operation, reducing downtime and maximizing productivity.
Installation of the 4258784 bushing is straightforward, thanks to its precise dimensions and compatibility with Hitachi equipment. It is an ideal replacement part for worn-out or damaged bushings, restoring your machinery's performance and extending its lifespan.
Trust Hitachi parts to deliver exceptional quality and reliability with the 4258784 bushing. Upgrade your machinery today and experience improved performance, reduced downtime, and enhanced efficiency.
Hitachi 4258784 Bushing Specifications & Fitment
What it is: Heavy-equipment bushing designed for tight-tolerance pivot joints where wear control and alignment matter.
- Part number: 4258784
- SKU: KM-4258784
- 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.
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