At EquipXR, we supply aftermarket dozer sprockets and segments designed for tough job sites. We offer OEM-equivalent options for many bulldozer makes and models. Whether you need full-cut sprockets, bolt-on segment sets, or help matching an OEM reference number, our team can help you find the right part.
Dozer Sprockets & Segments: Aftermarket Drive Sprockets For Bulldozers
Aftermarket Dozer Sprockets & Segments For All Makes & Models
EquipXR supplies aftermarket dozer sprockets and segments for a wide range of machines, helping contractors, fleet managers, and repair teams find dependable replacement parts that fit and perform. With a 50,000+ part inventory across 12+ warehouse locations throughout the United States, we can get the parts you need shipped to you fast.
EquipXR stocks aftermarket dozer sprockets and segment sets for all major makes and models, including Caterpillar, Komatsu, John Deere, CASE, Liebherr, Volvo, Hitachi, and more.
Whether you’re doing a full dozer undercarriage rebuild or replacing segments mid-cycle to extend chain life, EquipXR has the right part. Our aftermarket dozer sprockets and segment groups are machined to meet or exceed OEM tooth profiles, pitch dimensions, and material specifications. Every part is built to drop in without modification, so your undercarriage runs as it was designed.
Drive Sprockets (Full-Cut Sprockets)
Full-cut sprockets, or one-piece sprockets, are a single machined unit mounted to the final drive hub. The gear ring and hub form one solid part. You replace the entire drive sprocket unit when it wears out.
Full-cut sprockets are the standard choice for dozers with dry-chain undercarriage systems and are typically the right choice for a full undercarriage rebuild or installing new track chains. Because the entire unit is replaced at once, full-cut sprocket replacements are straightforward, but installation requires removing the track. Removing the track adds labor time compared to bolt-on segments, but for a full rebuild, that’s work you’re already doing. EquipXR stocks full-cut sprockets with OEM tooth profiles for all major dozer models, so you get the right part quickly and get back to work.
Bolt-On Segment Sets
Bolt-on segments are steel pieces that mount to a hub ring, forming a sprocket assembly. Replace only the worn segments, keeping the hub ring in place.
The key advantage of drive segments is that they can be swapped out without removing the track chain, significantly reducing labor time compared to a full sprocket replacement. This design is common on larger machines and is preferred by some operators because it can make service work more practical in the field or in the shop. For bulldozers running oil-lubricated (sealed) track chains, segments are the standard factory configuration and the preferred maintenance strategy for operators looking to minimize mid-cycle machine downtime. Our segments fit precisely with your current hub hardware, using the same bolt patterns and torque specs as the original equipment.
OEM-Equivalent Aftermarket Dozer Sprockets & Segments
At EquipXR, we help customers source aftermarket sprockets and segment sets that meet the OEM specifications required by their equipment. Our dozer sprockets and segments are manufactured to meet or exceed OEM specifications, including tooth geometry, pitch accuracy, steel grade, and heat treatment depth. The result is a part that fits the same, performs the same, and lasts as long, without the OEM price tag.
We supply aftermarket sprockets and segment sets for contractors, fleet managers, dealers, and owner-operators seeking reliable parts. We help with replacement part selection by model, serial number, or OEM reference. All drive sprocket and segment sets are engineered for direct interchange with the original part. No grinding or shimming—just install and run.
Bulldozer Part Compatibility by OEM Brand & Model
EquipXR stocks full-cut sprockets and segment sets with OEM profiles for all key dozer makes and models, so you get the part fast and return to work. Below are some of the most common dozer brands and models that we offer aftermarket parts for:
- Caterpillar (CAT): D3, D4, D5, D6, D7, D8, D9, D10, D11 series
- Komatsu: D37, D39, D51, D61, D65, D85, D155, D275, D355 series
- John Deere: 450, 550, 650, 700, 750, 850, 1050 series
- CASE: 650, 750, 850, 1150 series
- Liebherr, Dresser, Volvo, Hitachi, and others: variety of current and legacy models
Don’t see your model listed? We also help customers source hard-to-find parts for older and legacy dozer models that are still working in the field every day. Our parts specialists can track down sprockets and segments for legacy machines, less common brands, and hard-to-find configurations. Our parts specialists work with OEM part numbers, machine serial numbers, and cross-reference data to confirm fitment. Reach out, and we’ll find what you need.
All manufacturers’ names, symbols, brands, and part numbers are used for reference purposes only. Those references help identify compatibility and do not indicate that any listed part is an OEM product unless specifically stated.
Types of Dozer Undercarriage Rollers & Their Functions
Both full-cut sprockets and segment sets transfer power from the drive to the track chain. The difference is in design and replacement method. Choose between a full-cut sprocket and segments based on your undercarriage configuration, wear cycle, and acceptable downtime.
| Full-Cut Sprockets | Bolt-On Segment Sets | |
|---|---|---|
| Configuration | One-piece unit | Individual segments on a hub ring |
| Best For | Full rebuilds, dry-chain systems | Mid-cycle maintenance, sealed-chain systems |
| Track Removal Required? | Typically yes | No |
| Labor Time | Higher | Lower |
| Replacement Unit Cost | Lower | Higher per set |
| Factory Standard On | Dry-chain dozers | Oil-lubricated (sealed) chain dozers |
If your machine came from the factory with segments, stay with segments; the hub ring is designed for that system. If you’re doing a ground-up undercarriage rebuild with new chains, a full-cut sprocket is often the cleaner, more cost-effective solution. When in doubt, call our team. We’ll confirm what your machine takes and what’s in stock.
Tooth Profiles, Pitch, And Fitment Considerations
Pitch is the center-to-center distance between track links. If the sprocket and chain pitch don’t match, the teeth won’t engage the bushings correctly, causing rapid wear or even skipping of the bulldozer chain links. EquipXR parts match the OEM pitch for each use.
The tooth profile (the shape of the individual gear tooth) determines how cleanly the sprocket engages the chain bushing. Worn or incorrectly profiled teeth create uneven bushing contact, accelerating chain pitch elongation and increasing wear across the entire undercarriage. EquipXR’s sprockets and segments are machined to OEM tooth geometry specifications, ensuring correct engagement. Bolt patterns and segment counts must match your machine’s hub. Segment sets are not universally interchangeable. Always confirm part numbers or serial numbers before ordering.
Frequently Asked Questions About Dozer Rollers
A full-cut sprocket is a single, one-piece unit that combines the hub and gear ring into a single component. When it wears out, the entire unit is replaced. A segment, by contrast, is one piece of a multi-piece assembly. Several individual segments bolt onto a separate hub ring to form a complete sprocket. The key difference in practice: segments can be replaced individually without removing the track chain, while a full-cut sprocket typically requires more disassembly.
Yes, this is one of the primary advantages of a segmented sprocket system. Because segments bolt onto a hub ring that remains in place, individual segments can be removed and swapped without breaking the track chain. This significantly reduces labor time compared to a full-cut sprocket replacement and is one of the reasons segmented systems are common on larger, higher-hour machines.
The clearest sign is tooth geometry. Healthy sprocket teeth have a rounded, even profile that seats cleanly in the track chain. As wear progresses, teeth develop a hooked or sharply pointed shape, this is caused by the track chain’s pitch increasing over time as pins and bushings wear. Once teeth reach that hooked or pointed stage, the sprocket needs to be replaced. Other indicators include visible lateral wear on tooth faces, accelerated chain wear, or a chain that skips or sits loosely on the sprocket.
Quality aftermarket sprockets and segments, as those EquipXR carries, are manufactured to precisely match OEM tooth geometry, steel grade, pitch dimensions, and heat treatment specifications. They’re designed as direct-interchange replacements, meaning they install without modification and perform to the same standard as the original equipment part. The difference is cost: aftermarket parts deliver equivalent performance at a significantly lower price point than dealer-sourced OEM components.
The key is sourcing from a supplier that meets real OEM-equivalent standards rather than cutting corners on materials or heat treatment. EquipXR is so confident in the quality and fitment of our parts that we have an extensive warranty and detailed shipping/returns information on our website.
Yes. EquipXR stocks aftermarket sprockets and segments compatible with all major dozer manufacturers, including Caterpillar, Komatsu, John Deere, CASE, Liebherr, Dresser, Volvo, Hitachi, and others. If your machine or model isn’t listed in our online catalog, contact our parts team with your make, model, serial number, or OEM part number, and we’ll confirm which sprocket segments are available and their fitment.
Signs Your Crawler Dozer Sprockets or Segments Need Replacing
EquipXR supplies aftermarket dozer sprockets and segments for construction, earthmoving, grading, site preparation, land clearing, and other demanding applications. These are hard-working wear parts deal with constant load, repeated track engagement, dirt intrusion, shock, and long operating hours. Once wear starts to appear on the teeth or mounting points, performance can drop quickly.
Sprocket and segment wear happen gradually, but the signs are readable if you know what to look for. Catching wear early protects your track chains and prevents a simple sprocket replacement from turning into a full undercarriage job.
- Hooked or pointed teeth are common signs of wear. When teeth are hooked or sharp, it means the chain’s pitch has increased due to pin and bushing wear, causing the chain to ride incorrectly. If teeth look like this, replacement is overdue.
- Wear concentrated on one side of the tooth usually points to an alignment issue, worn chain guides, a twisted undercarriage frame, or a misaligned front idler. Address the root cause before installing new sprockets, or the new parts will wear out prematurely.
- If track chains are wearing quickly, worn sprockets may be to blame. Sprockets with loose tooth clearance cause chains to slap and shift, accelerating wear on bushings and pins.
Important Note: Never replace sprockets or segments in isolation without evaluating the chain. Installing new sprockets on a heavily worn chain or worn sprockets on a new chain accelerates wear on both components. The two systems should be compatible in pitch and wear state.
Replacement & Maintenance Tips For Dozer Sprockets And Segments
When a crawler dozer needs dependable power transfer from the final drive to the track chain, the condition of the sprockets and segments matters right away. Here are some replacement and maintenance tips to keep your sprockets and segments from premature wear:
- Check track tension regularly — Incorrect tension puts additional stress on sprocket teeth and chain components. Follow your machine’s tension spec for the ground conditions you’re working in.
- Clear packed debris — Mud, gravel, and construction debris that packs between sprocket teeth and chain bushings acts as an abrasive and accelerates tooth wear. Clean undercarriage components regularly, especially when working in clay, wet fill, or rocky material.
- Replace segments before end-of-cycle on sealed chains — If your chain is still in good condition, replacing segments slightly early (before they’re fully hooked) lets you get several hundred additional hours from the existing chain.
- Match wear states when rebuilding — When doing a partial undercarriage replacement, always confirm that sprocket pitch is compatible with your existing chain pitch. Mixing worn and new components at incompatible wear states shortens the service life of both.
Related Dozer Undercarriage Parts
Sprockets and segments are one part of a larger undercarriage system. For many customers, replacing the dozer sprocket prompts them to review the condition of their entire dozer undercarriage system. At that point, replacing other components can save labor, reduce repeat downtime, and improve overall machine performance. If you are looking for other dozer undercarriage parts, EquipXR has the parts you need, including:
Why Choose EquipXR for Aftermarket Dozer Sprockets & Segments?
EquipXR offers aftermarket drive sprockets built for heavy-duty use and daily field conditions. We work with customers who need replacement parts for construction, earthmoving, land clearing, utility work, site prep, quarry operations, and other demanding applications.
EquipXR is a dedicated aftermarket supplier of heavy equipment parts. We understand that when a dozer is down, schedules slip, crews lose time, and jobs can get expensive fast. That is why we focus on practical support services, accurate part matching, and fast access to aftermarket heavy equipment parts for the machines our customers rely on every day.
High-Quality Parts
OEM-matched specifications on every sprocket and segment with correct tooth profile, pitch, high quality steel, and heat treatment, every time.
Expert Support
Expert parts support from a team that knows heavy equipment undercarriages. Give us a make, model, serial number, or OEM part number, and we’ll confirm fitment before you order.
Competitive Pricing
Competitive aftermarket pricing that delivers OEM-equivalent performance at a fraction of the dealer cost, whether you’re buying one segment set or stocking parts for a fleet.
Large Parts Inventory
50,000+ parts in stock, 12+ US warehouse locations. Large inventory and distributed warehousing mean faster shipping to your jobsite, or wherever your machine is down.
Aftermarket Parts For All Makes & Models
Broad inventory of aftermarket parts covering all major brands. CAT, Komatsu, Deere, CASE, Liebherr, Volvo, Hitachi, Dresser, and more.
Get the Undercarriage Parts Your Construction Equipment Needs – Fast
Whether you are ordering for one machine or managing ongoing parts needs across a larger fleet, EquipXR is here to help you find the dozer sprockets and segments that fit your equipment and your timeline. Don’t let worn sprockets or segments take your dozer out of commission. EquipXR has the dozer sprockets, segments, and undercarriage components to keep your machine running, in stock, priced right, and ready to ship. Call or text (937) 369-0949, email info@EquipXR.com, or use the parts request form to get started.
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