D4 Bulldozer

CAT D4 Bulldozer Undercarriage Parts

We supply undercarriage parts and complete undercarriages for the Caterpillar D4 series bulldozer. All of our undercarriage parts come backed by a 3 year, 4,000 hour warranty. In addition to undercarriage parts, we also provide aftermarket, refurbished and lightly used components for the Cat D4 bulldozer, some of which may qualify for same-day shipping delivery. Contact us today for more information.


The Large Cat D4 Series Includes

D4, D4B, D4B LGP, D4C, D4C LGP, D4C XL, D4D, D4E, D4G LGP, D4G XL, D4H, D4H LGP, D4H XL, D4K LGP, D4K XL

Caterpillar D4 Bulldozer

The Cat D4 hydraulic crawler dozer combines the power of a larger tractor with the versatility and maneuverability of a smaller machine in one package to meet a wide range of job applications. With its comfortable operator station, excellent visibility and simple joystick control, the D4G is everything you expect from Caterpillar and more! The Cat D4 series has been in production since the 1950’s, and the fact that these dozers are still in production says a lot about their quality, design and durability. Be sure to always put on high quality replacement undercarriage and parts when needed to keep the CAT D4 dozer moving.

    Cat Undercarriage Request

    Track AssemblyTrack PadsRollersSprocketsIdlersComplete Undercarriage

    CAT D4 Undercarriage

    excavator sprockets

    Cat D4 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 D4 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 D4 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 D4 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 D4 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 D4 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.

    Caterpillar D4G

    A recent customer came to us looking for undercarriage parts for his Caterpillar D4G bulldozer. We supplied both sides of his dozer with 41 link salt tracks assembled with 25″ single grouser pads. 

    cat d4g tacks
    Caterpillar D4G Undercarriage