Komatsu Sx3071-00780 Shaft Assembly

Alternate Part# Sx307100780

The sx3071-00780 shaft assembly is a top-quality replacement part for Komatsu machinery. Designed to meet the highest industry standards, this shaft assembly ensures optimal performance and durability for your equipment. It is compatible with various Komatsu models and is an essential component for smooth and efficient operation. Crafted with precision engineering, this shaft assembly guarantees a perfect fit and seamless integration into your Komatsu machine. It is made from high-quality materials, carefully selected for their strength and resilience. This ensures long-lasting performance and reliable functionality even under demanding operating conditions. The sx3071-00780 shaft assembly is designed to withstand the rigors of heavy-duty applications. It undergoes rigorous testing to ensure its ability to handle the toughest tasks and deliver exceptional results. Its robust construction and superior craftsmanship make it a dependable choice for Komatsu equipment owners who value quality and reliability. Easy to install, this shaft assembly saves you time and effort. Its user-friendly design allows for hassle-free installation, without the need for complicated tools or extensive technical knowledge. Simply follow the provided instructions, and you'll have your Komatsu machine up and running in no time. Investing in the sx3071-00780 shaft assembly means investing in the longevity and performance of your Komatsu equipment. With its exceptional build quality and reliable functionality, this shaft assembly will keep your machinery running smoothly, reducing downtime and maximizing productivity.

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Komatsu Pin Specifications & Fitment

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

• Part number: See title
• SKU: KM-Sx3071-00780
• 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 machineTMs 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 weTMll 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 pinbushing 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.