PC78 Excavator

Komatsu PC78 Excavator Undercarriage Parts

Pivot can provide you undercarriage parts for your Komatsu PC78 Excavator. We have idlers, sprockets, rollers, track chains and more. Our high quality undercarriage parts are an affordable option for repairing your heavy equipment. Pivot offers a 3 year, 4 thousand hour warranty on our undercarriage parts and most can be shipped out on the same day they are ordered. Pivot is also a premier online dealer of rebuilt, used and new parts as well. Get your order started by emailing or calling Pivot. 

The Komatsu PC78 Excavator Series 

PC78MR6, PC78US6, PC78US8

About The Komatsu PC78 Excavator

The Komatsu PC78 Excavator has two “Automatic Travel Speeds” that give operators added control when maneuvering the excavator. A high or low speed can be chosen depending on the ground and job conditions and can be chosen with a single touch. The travel speed will automatically change up or down when the terrain changes as well. The PC78 Excavator provides exceptional travel performance too. It has a standard large drawbar pull and a single pump with double flow. This means easy and safe travel when moving through uneven and rough terrain or when climbing steeper slopes. Operators will enjoy the low-noise design of the Komatsu PC78 Excavator due to Komatsu’s use of sound-absorbing materials by placing a partition between the cab and engine compartment.

    Komatsu Undercarriage Request

    Track AssemblyTrack PadsRollersSprocketsIdlersComplete Undercarriage

    Komatsu PC78 Undercarriage Parts

    excavator sprockets

    PC78 Sprockets

    Our sprockets and segment groups are specifically designed to provide extended life and durability for the toughest working conditions. We offer sprockets for crawlers, dozers and excavators.

    undercarriage rollers

    PC78 Rollers

    PIVOT supplies the construction and mining industry with top carrier rollers along with single and double flange bottom track rollers. Our rollers are manufactured to provide excellent service in extreme operating conditions.

    undercarriage idlers

    PC78 Idlers

    We also carry a wide range of idlers that are fabricated and cast from high strength steel. This is to maintain the integrity of our product and reliability for your machine.

    excavator undercarriage

    PC78 Track Assembly

    PIVOT offers track group assemblies as well as individual track chains. Our track chains come either greased or sealed and lubricated in Standard or Heavy Duty options. All track groups can be assembled prior to shipment for your convenience and ease of install.

    undercarriage track pads

    PC78 Track Pads

    We supply a variety of arrangements when it comes to your machine’s track shoes that have been designed and tested for your specific application. All of our track pads come either with a single, double or triple grouser setup. You also have the option of with or without mud-holes, standard or extreme service, along with various widths.

    track adjuster

    PC78 Track Adjusters

    PIVOT also carries several options for complete track adjuster assemblies, springs and seal kits. Our track adjusters are direct replacement for fit, form and function and have been specifically engineered to operate under extreme working conditions to keep you moving.


    We supplied 39 link sealed & greased tracks assembled w/18″ triple grouser track pads for a Komatsu PC78MR-6 excavator to our customer in Missouri.