Skip to product information
1 of 1

Hitachi 4381857 Bushing | Hitachi Excavator Parts

Regular price $105.49 USD
Regular price Sale price $105.49 USD
Sale Sold out
✓ In Stock
SKU: HIT-4381857
Availability: SHIPS IN 24 HOURS

Warranty: SAME AS OEM WARRANTY

Quantity

Product Description

This high-quality bushing from Hitachi parts is designed to provide optimal performance and durability for your machinery. Made with precision craftsmanship, this bushing is a reliable replacement for your worn-out or damaged bushing.

Designed to fit seamlessly into various Hitachi models, this bushing ensures smooth and efficient operation. Its sturdy construction guarantees long-lasting performance, even in demanding working conditions. This makes it an ideal choice for industries such as construction, mining, and agriculture.

Featuring advanced engineering, this bushing offers excellent resistance against wear, corrosion, and friction. It helps to reduce the risk of breakdowns and costly repairs, ensuring that your equipment operates at its peak efficiency. With this bushing installed, you can have peace of mind knowing that your machinery is well-maintained and protected.

Installation of this bushing is quick and hassle-free, fitting seamlessly into your existing machinery. Its compatibility with a wide range of Hitachi models makes it a versatile option for various applications. Whether you need a replacement for your excavator, bulldozer, or loader, this bushing is an excellent choice.

Invest in the reliability and performance of Hitachi parts with this 4381857 bushing. Ensure the smooth operation of your machinery and minimize downtime with this high-quality replacement part. Order yours today and experience the difference it can make in your equipment's performance.


Hitachi 4381857 Bushing Specifications & Fitment

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

  • Part number: 4381857
  • SKU: HIT-4381857
  • 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.
View full details