Komatsu Dk139722-0400 O-Ring

Product Description

Introducing the Komatsu Dk139722-0400 o-ring, a high-quality aftermarket part designed to ensure optimal performance in your Komatsu machinery. This o-ring is specifically engineered to fit seamlessly within various Komatsu models, providing a reliable and efficient sealing solution.

At Komatsu, we understand the importance of using certified premium parts to maintain the longevity and efficiency of your machinery. That's why our aftermarket parts are meticulously crafted to meet or exceed the original equipment manufacturer's specifications. The Dk139722-0400 o-ring is no exception, offering exceptional durability and reliability.

With its robust construction and precise design, this o-ring effectively seals fluids and gases, preventing leaks and ensuring the smooth operation of your Komatsu equipment. Whether you're working in construction, mining, or any other industry that relies on Komatsu machinery, this o-ring is a vital component for maintaining optimal performance.

Installation is a breeze, as the Dk139722-0400 o-ring is designed to fit perfectly into your Komatsu equipment without any modifications. Simply replace your worn-out o-ring with this high-quality aftermarket part, and experience improved efficiency and reduced downtime.

When it comes to aftermarket parts, trust Komatsu to deliver exceptional quality and performance. Our commitment to excellence ensures that each product undergoes rigorous testing to meet the highest industry standards. Rest assured that the Dk139722-0400 o-ring is a reliable choice that will withstand the demanding conditions of your worksite.

Upgrade your Komatsu machinery with the Dk139722-0400 o-ring and experience enhanced performance and longevity. Invest in this top-notch aftermarket part today to keep your equipment running smoothly and efficiently.

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-Dk139722-0400
• 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.