Marketplace of Heavy Machinery Spare Parts
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Undercarriage Track

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Undercarriage Track Spare Parts

On a tracked machine, the undercarriage is the single largest maintenance cost over the life of the equipment, and every component in it is a wear item on a clock. This category groups the parts that carry and drive the tracks: track chains and links, track shoes and pads, top and bottom rollers, front idlers, drive sprockets, and the recoil springs that keep tension under load. As pins and bushings wear, chains stretch, sprocket teeth hook, and rollers seize — symptoms most operators know well.

Matching undercarriage to a specific dozer or excavator means getting link pitch, shoe width, and roller count right, which is where a serial number or OEM reference speeds things up. 3GEN stocks 100% OEM undercarriage for 75+ supported brands and can build a full chain-and-sprocket package or supply single rollers as needed. Orders ship free worldwide to any country with full tracking and duties paid, out of our warehouses in Ankara and Santa Ana, backed by parts specialists in the U.S., Turkey, and UAE.

Frequently Asked Questions

What Undercarriage Parts Do You Carry?

We supply full undercarriage: track chains and complete track groups, track shoes, top and bottom rollers, front idlers, and sprocket segments or rims. Parts fit excavators, dozers, and crawler machines across 75+ brands, all 100% OEM. If you need a whole undercarriage set, we can quote it as a package.

How Do I Match Track Chain Pitch And Shoe Width?

Undercarriage parts are matched by chain pitch, link count, and shoe width, not just machine model, since one model may have run several undercarriage options. Give us your machine serial number or measure the pitch between pins and the existing shoe width. Our specialists confirm the exact chain, roller, and sprocket combination before quoting.

When Should Rollers, Idlers, And Sprockets Be Replaced Together?

Undercarriage wears as a system. Running worn sprockets against a new chain accelerates pitch stretch, so many operators renew the chain, sprockets, and rollers on the same cycle. Rollers and idlers fail when seals leak and oil escapes. Measuring bushing and link wear tells you what to reorder; we ship bulky sets worldwide with tracking.