Komatsu D40L357 Pin

The D40L357 dowel pin is a high-quality component designed specifically for Komatsu machinery. This durable dowel pin is engineered to provide a secure and reliable connection between various parts of your equipment. With its precise construction and excellent craftsmanship, this dowel pin ensures optimal performance and longevity. Made with the utmost attention to detail, the D40L357 dowel pin is built to withstand the demanding conditions of heavy-duty applications. Its robust design guarantees enhanced stability and prevents any unwanted movement or misalignment, ensuring smooth operation and reducing the risk of equipment failure. This dowel pin is manufactured using top-grade materials, ensuring superior strength and resistance to wear and tear. The high-quality construction of the D40L357 dowel pin ensures exceptional durability, allowing it to withstand even the most rigorous working environments. Easy to install, this dowel pin seamlessly integrates into your Komatsu machinery, providing a secure and reliable connection. Its precise dimensions and compatibility with Komatsu parts make it a perfect fit for your equipment, ensuring hassle-free installation and maintenance. Whether you are replacing a worn-out dowel pin or performing routine maintenance on your Komatsu machinery, the D40L357 dowel pin is the ideal choice. Its exceptional reliability and durability make it an essential component for maintaining the optimal performance of your equipment. Invest in the superior quality and performance of the D40L357 dowel pin and experience the difference it can make in the efficiency and longevity 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-D40L357
• 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.