318 Excavator

CAT 318 Excavator Undercarriage Parts

We supply undercarriage replacement parts and complete undercarriages for the Caterpillar 318 series hydraulic excavator. All of our undercarriage parts come confidently backed by a three year, four thousand hour warranty. In addition to undercarriage parts, we also offer a variety of used, refurbished & aftermarket components for the Cat 318 excavator, some of which qualify for same-day shipping. Contact us today for more information.

The Cat 318 Family Includes

318B, 318BN, 318C, 318D L, 318D2 L & 318E L

Caterpillar 318 Excavator

Since its introduction in the 1990s, the 300 Series family of excavators has become the industry standard for production and performance. The Cat 318 and the E series continue that trend-setting standard. Built to meet the U.S. EPA Tier 4 Interim emission standards, the 318E makes an excellent choice for people who need a well-balanced utility machine that delivers power and fuel economy in an easy-to-transport package. The Cat 318E comes equipped with several new features and benefits, including two power modes and a Biodiesel-Ready fuel system. The long undercarriage supports any type of work you can do with an 18 metric ton machine. The track rollers are a double solid-pin-type design to improve reliability; an optional two-piece guiding guard helps maintain track alignment and improves the machine’s overall performance.  Always use quality replacement parts when maintaining your Cat 318 series hydraulic excavator. Order your undercarriage parts from us today.

    Cat Undercarriage Request

    Track AssemblyTrack PadsRollersSprocketsIdlersComplete Undercarriage




    CAT 318 Undercarriage

    excavator sprockets

    Cat 318 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

    Cat 318 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

    Cat 318 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

    Cat 318 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

    Cat 318 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

    Cat 318 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.