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Komatsu 6221-31-2300 Piston Ring Ass

Regular price $67.20 USD
Regular price Sale price $67.20 USD
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SKU: KM-6221-31-2300

Weight: 0.18 lb

Availability: SHIPS IN 24 HOURS

Warranty: SAME AS OEM WARRANTY

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Product Description

Alternate Part #6221312300

Komatsu 6221-31-2300 Piston Ring Ass

The Komatsu 6221-31-2300 piston r is a high-quality aftermarket part designed for Komatsu machinery. It is a reliable and efficient replacement for the original Komatsu piston, ensuring optimal performance and longevity of your equipment.

Crafted with precision and expertise, this piston is manufactured using top-grade materials to meet the highest industry standards. It undergoes rigorous quality control processes to ensure durability and reliability in demanding work environments.

The Komatsu 6221-31-2300 piston r is designed to provide excellent compression and combustion efficiency, resulting in improved engine performance. It offers a perfect fit and seamless integration with your Komatsu equipment, ensuring smooth operation and reduced downtime.

This piston is compatible with a wide range of Komatsu models, making it a versatile choice for various applications. Whether you need it for construction, mining, or any other heavy-duty operation, the Komatsu 6221-31-2300 piston r is built to withstand the toughest conditions and deliver exceptional performance.

Trust in the reliability and durability of this high-quality aftermarket part to keep your Komatsu machinery running smoothly. Upgrade your equipment with the Komatsu 6221-31-2300 piston r and experience enhanced efficiency, increased productivity, and reduced maintenance costs.

Please note that the


Komatsu 6221-31-2300 Pin Specifications & Fitment

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

  • Part number: 6221-31-2300
  • SKU: KM-6221-31-2300
  • 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.
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