Komatsu 20K-14-31840 O-Ring

Alternate Part# 20K1431840

The Komatsu 20k-14-31840 o-ring is an essential component designed to provide reliable sealing and prevent leaks in various Komatsu machinery. This high-quality o-ring is a perfect fit for your Komatsu equipment, ensuring optimal performance and longevity. Engineered with precision, this o-ring is a certified premium Komatsu part, manufactured to meet the highest standards of quality and durability. It is specifically designed to withstand demanding operating conditions, including extreme temperatures, pressure, and fluid compatibility. As a trusted aftermarket solution for Komatsu parts, this o-ring offers exceptional value by providing a cost-effective alternative without compromising on performance. With its precise engineering and superior sealing capabilities, this o-ring is an ideal replacement for your worn-out or damaged o-ring. The Komatsu 20k-14-31840 o-ring is compatible with a wide range of Komatsu machinery, making it a versatile choice for various applications. Its easy installation process ensures a hassle-free replacement, allowing you to get your equipment up and running in no time. Investing in certified premium Komatsu aftermarket parts guarantees a perfect fit and reliable performance, ensuring maximum productivity and minimizing downtime. Trust in the quality and dependability of this o-ring to maintain the efficiency and effectiveness of your Komatsu machinery.

---

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-20K-14-31840
• 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.