Home > Dozer Parts > Undercarriage Parts > Rollers (Track Rollers & Carrier Rollers)
Dozer Rollers: Aftermarket Track Rollers & Carrier Rollers
At EquipXR, we supply high-quality aftermarket dozer rollers for a wide range of machines and working conditions. Whether you need track rollers, carrier rollers, or help matching the correct roller for your equipment, we help you find the right part and get it shipped fast. Whether you’re running a compact crawler or a large production dozer, we will match the right roller parts for your equipment.
Our Inventory Of Aftermarket Dozer Rollers For All Makes & Models
We stock a wide range of aftermarket dozer rollers designed to fit virtually every major machine on the market. Our parts are manufactured to OEM-equivalent specifications, so you get reliable fitment and performance without paying dealer prices. We support machines across all size classes, from smaller utility dozers to heavy-duty earthmoving equipment. With 50,000+ parts in stock and access to an even broader supplier network, we quickly source what you need. Our 12 warehouse locations throughout the United States allow us to quickly ship the roller parts you need.
Not sure which roller your machine needs? Our parts specialists are ready to help you identify the correct part by make, model, and serial number. Call or text us at (937) 369-0949 or send a message to info@EquipXR.com.
Track Rollers (Bottom Rollers)
Track rollers, often called bottom rollers or lower rollers, sit along the lower portion of the dozer undercarriage and support a large share of the machine’s operating weight. As the machine travels, these rollers help carry the track chain while keeping movement more stable and controlled across rough, uneven, or abrasive ground conditions.
Because bottom rollers deal with constant impact, heavy loads, dirt, moisture, and repeated track motion, they are one of the most important wear components in the undercarriage. A quality track roller needs to hold up under pressure, maintain proper fit, and resist premature wear. When a bottom roller wears down, the effects show up in several places throughout the undercarriage. You may see uneven track wear, poor track engagement, changes in ride quality, or extra stress on nearby dozer undercarriage parts.
Replacing worn track rollers at the right time protects your investment and reduces the chance of more expensive repairs later. At EquipXR, we help customers source aftermarket bottom rollers that are built for real jobsite demands. We offer track rollers in single-flange, double-flange, and center-flange configurations for all major dozer platforms.
Find your track roller’s OEM part number on your parts invoice or in your machine’s parts book, then contact EquipXR for an aftermarket replacement. Below is a partial reference list of commonly requested track roller and bottom roller part numbers by manufacturer
- CAT 118-1608 Single-Flange Track Roller
- CAT 118-1609 Double-Flange Track Roller
- CAT 7G-4836 Single-Flange Track Roller
- CAT 7G-4837 Double-Flange Track Roller
- CAT 9S-9539 / 118-1611 Single-Flange Track Roller
- CAT 9S-9538 / 118-1612 Double-Flange Track Roller
- CAT 124-8237 Single-Flange Track Roller
- CAT 124-8240 Double-Flange Track Roller
- CAT 118-1614 / 122-0216 Single-Flange Track Roller
- CAT 118-1615 Double-Flange Track Roller
- CAT 120-5746 Single-Flange Track Roller
- CAT 120-5766 Double-Flange Track Roller
- CAT 231-3090 / 124-8250 Single-Flange Track Roller
- CAT 231-3091 / 124-8253 Double-Flange Track Roller
- CAT 195-5855 Track Roller
- CAT 195-5856 Track Roller
- JD AT363439 Single-Flange Track Roller
- JD AT486086 Single-Flange Track Roller
- JD AT104906 Single-Flange Track Roller
- JD AT165372 Single-Flange Track Roller
- JD AT173373 Single-Flange Track Roller
- JD AT183283 Single-Flange Track Roller
- JD AT185741 Single-Flange Track Roller
- JD AT142254 Double-Flange Track Roller
- JD AT173374 Double-Flange Track Roller
- JD AT185742 Double-Flange Track Roller
- CCE R56593 Single-Flange Track Roller
- CCE R56593 Single-Flange Track Roller
- CCE R56593 Single-Flange Track Roller
- CCE R56874 Double-Flange Track Roller
- CCE R33571 Single-Flange Track Roller
- CCE R33572 Double-Flange Track Roller
- KM 140-30-00053 Single-Flange Track Roller
- KM 140-30-00063 Double-Flange Track Roller
- KM 141-30-00576 Single-Flange Track Roller
- KM 141-30-00586 Double-Flange Track Roller
- KM 14X-30-14200 Double-Flange Track Roller
- KM 155-30-00124 Single-Flange Track Roller
- KM 155-30-00114 Double-Flange Track Roller
- KM 175-30-00486 Single-Flange Track Roller
- KM 175-30-00496 Double-Flange Track Roller
- KM 195-30-00112 / 195-30-00122 Track Roller
- KM 195-30-01411 / 195-30-01421 Track Roller
- KM 198-30-00423 / 198-30-00433 Track Roller
- LB 5800163 Track Roller
- LB 5800164 Track Roller
- LB 5801601 Track Roller
- LB 5801602 Track Roller
- LB 5801950 Track Roller
- LB 5801951 Track Roller
The OEM part numbers above are commonly used reference numbers for Caterpillar, John Deere, CASE, Komatsu, and Liebherr dozers. This is just a partial list of their OEM roller part numbers. Even if your specific part number is not listed here, we likely have an equivalent aftermarket part in stock. Contact our parts experts for access to our full inventory of aftermarket bottom rollers.
All manufacturer names, symbols, brands, and OEM part numbers are used for identification and reference purposes only. EquipXR does not represent that any listed part is an OEM product. All part details should be verified with an EquipXR parts specialist prior to ordering to confirm aftermarket compatibility with your dozer make and model.
Carrier Rollers (Top Rollers)
Carrier rollers, also called top rollers or upper rollers, support the upper run of the track chain. Their job is different from bottom rollers, but it is still essential. These rollers help guide the track as it returns over the top of the undercarriage, which helps maintain smoother track movement and better overall system performance.
On larger dozers with steel tracks, carrier rollers are essential. Without them, the track chain would sag between the sprocket and idler, causing uneven wear, misalignment, and eventual derailment. Most standard dozers run one to two carrier rollers per side, though this varies by machine size and design. If a carrier roller starts to fail, the track may not ride the way it should. That often leads to misalignment, added vibration, uneven wear, and more strain on the rest of the undercarriage.
We supply aftermarket carrier rollers for a wide range of bulldozer applications. All rollers are built to OEM-equivalent tolerances and include multiple flange configurations and options for sealed lubrication systems. If you need help finding the right top roller for your machine, our team will verify compatibility and point you toward the right replacement part.
The OEM part numbers below are a partial list of our commonly requested carrier rollers and top rollers for CAT, John Deere, CASE, and Komatsu dozers. Find your current carrier roller’s OEM part number on your parts invoice or in your machine’s parts book, then contact EquipXR for aftermarket replacements. Even if your part number is not listed below, we likely have an equivalent aftermarket part in stock. Contact us for our full inventory of aftermarket dozer carrier rollers.
- CAT 6S-3609 Top / Carrier Roller Assembly
- CAT 8E-4589 Carrier Assembly
- CAT 5S-0889 Carrier Assembly
- CAT 6K-9880 Top Roller Assembly
- CAT 5A-8374 Top Roller Assembly
- CAT 6Y-3908 Top Roller Assembly
- CAT 106-0713 Carrier Roller
- CAT 3T-3206 Top Roller Assembly
- CAT 6Y-1781 Top Roller Assembly
- CAT 9G-9175 Carrier
- CAT 9C-6027 Carrier
- CAT 6Y-3908 Carrier / Top Roller
- CAT 1P-8717 Top Roller Assembly
- CAT 8P-6256 Top Roller Assembly
- CAT 8E-0400 Top Roller Assembly
- CAT 1M-4153 Carrier
- CAT 7G-8211 Carrier Assembly
- CAT 3P-3403 Roller Group
- CAT 6T-3726 Carrier Assembly
- JD AT486085 Carrier Roller
- JD AT486088 Carrier Roller
- JD AT139775 Carrier Roller
- JD AT175426 Carrier Roller
- JD AT306803 Carrier Roller
- CCE R33965 Top Track Roller
- CCE D48684 Top Roller Assembly
- CCE R33594 Top Track Roller
- CCE R33608 Carrier Roller family
- CCE 76041361 Carrier Roller
- CCE 87314691 Top Carrier Roller Assembly
- KM 141-30-00110 Upper / Carrier Roller
- KM 141-30-00568 Top Carrier Roller
- KM 141-30-00562 Top Roller
- KM 141-30-00565 Carrier Roller
- KM 141-30-00568 Carrier Roller
- KM 14X-30-00141 Carrier Roller
- KM 155-30-00233 Carrier Roller
- KM 154-30-01040 Carrier Roller
- KM 154-30-01090 Carrier Roller
- KM 154-30-01091 Carrier Roller
- KM 175-30-00515 Carrier Roller
- KM 17A-30-00721 Carrier Roller
- KM 17M-30-00340 Carrier Roller
All manufacturer names, symbols, brands, and OEM part numbers are used for identification and reference purposes only. EquipXR does not represent that any listed part is an OEM product. All part details should be verified with an EquipXR parts specialist prior to ordering to confirm aftermarket compatibility with your dozer make and model.
OEM-Equivalent Aftermarket Dozer Rollers
At EquipXR, we focus on aftermarket parts that are selected for reliability, durability, and practical field performance. EquipXR supplies aftermarket dozer rollers that meet or exceed OEM performance standards. These components are built to deliver reliable service life under demanding conditions, without the premium pricing typically associated with OEM parts.
For most operators and fleet managers, aftermarket rollers offer a practical balance of durability, availability, and cost control. With EquipXR’s aftermarket rollers, operators get the same fitment, load ratings, and service life you’d expect from an OEM dealer part. EquipXR carries aftermarket dozer roller parts compatible with the full spectrum of dozer manufacturers and model lines, including:
- Caterpillar (CAT): D3, D4, D5, D6, D7, D8, D9, D10, D11 series and variants
- Komatsu: D20, D21, D31, D37, D39, D41, D51, D61, D65, D85, D155, D275, D375 series
- John Deere: 450, 550, 650, 700, 750, 850, 1050 series and variants
- CASE: 350, 450, 550, 650, 750, 850, 1150, 2050 series
- Liebherr: PR 716, PR 726, PR 736, PR 746, PR 756 series
- Dressta: TD-6, TD-7, TD-8, TD-9, TD-15, TD-20, TD-25 series
- Shantui: SD series including SD08, SD13, SD16, SD22, SD32
- Volvo / Champion / FIAT-Allis: legacy equipment
Don’t see your exact model listed? Contact our parts team; our catalog extends well beyond what’s listed here, and we have access to components for legacy and discontinued platforms that OEM dealers no longer support.
Bulldozer Roller Part Numbers & OEM Compatibility
When customers reach out to us, they often provide one or more of the following: machine make, machine model, serial number, OEM reference number, undercarriage measurements, or photos of the worn component. Any of that information will help us narrow down the correct roller for their equipment.
Roller part numbers are often the fastest path to identifying the correct replacement. If you already have a reference number from the machine, an old part, a service record, or a parts manual, we use that information to help match the correct aftermarket option. Compatibility should always be confirmed based on the machine make, model, and, when available the part number.
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
We stock dozer undercarriage rollers for many of the most common bulldozer makes and models used across construction, site development, land clearing, mining, and general earthmoving. Our aftermarket parts are built for demanding service and chosen to help equipment owners, contractors, and fleet managers keep their machines running without paying more than they need to.
But dozer rollers are not all doing the same job. Different machines may use different roller counts, sizes, and flange configurations based on machine size and undercarriage design. Understanding the difference helps buyers make better decisions when ordering parts and helps operators understand where wear is coming from.
Track rollers are the primary load-carrying rollers. There are usually 5+ track rollers for each side of the undercarriage and they are located on the bottom portion of the machine’s undercarriage. These rollers work directly with the lower track path to support weight, distribute load, and keep the machine moving over the ground with better stability.
Carrier rollers are fewer in number than bottom rollers, but they still play a major role in keeping the track system working properly. They guide the top run of the track chain and help reduce excess movement as the track cycles back around. While they usually carry less load than bottom rollers, they are still essential for smooth track travel, tension, and proper alignment.
Roller Flange Types: Single Flange, Double Flange, & Center Flange
Roller flanges help guide the track and keep it moving in the correct path. Using the wrong one affects track guidance, wear patterns, and overall undercarriage performance. If you are unsure which flange design your machine uses, we will verify it before you order. The flange design used on a roller depends on the undercarriage layout and the role that roller plays in the system.
Single flange rollers have one raised guiding edge. These are used in applications where one-sided guidance is required based on the track frame design. They control track position without adding unnecessary bulk.
Double flange rollers have raised edges on both sides. These are common where more centered guidance is needed and where the undercarriage design calls for added track control during operation. In many machines, double flange rollers help keep the track running true under demanding conditions.
Center flange rollers use a central guiding ridge rather than flange edges on the outer sides. These are found in certain designs where the roller is meant to guide the track from a different position or geometry.
Frequently Asked Questions About Dozer Rollers
You can replace rollers individually, and in many cases that’s the right call, especially when only one or two show damage or leakage while the rest remain serviceable. However, if multiple rollers are approaching end of life at similar wear levels, replacing the full set at once reduces labor costs and minimizes the chance of additional failures in the near term. Your maintenance history and the overall condition of the undercarriage should guide the decision.
Roller service life varies significantly based on operating conditions, terrain type, and maintenance practices. In normal conditions on moderate terrain, track rollers can last anywhere from 3,000 to 5,000 hours. In highly abrasive environments (rocky ground, demolition sites, or sandy soil) they may wear considerably faster. Regular inspection, keeping the undercarriage clean, and promptly replacing worn seals can all help extend roller life.
The most common causes of premature roller wear include: operating in highly abrasive conditions (gravel, rock, sandy soil) without increasing inspection frequency, running with improper track tension (too tight or too loose), failing to clean the undercarriage regularly, continuing to operate after a seal failure causes oil loss, and using low-quality parts that don’t match the original specifications.
The total number of rollers depends on the size and model of the machine. Most dozers have 5 to 7 track rollers (bottom rollers) per side, plus 1 to 2 carrier rollers (top rollers) per side. Larger, heavier machines tend to have more rollers to distribute their greater operating weight across a longer track frame. Refer to your machine’s service manual or contact our parts team for the exact count for your model.
Dozer rollers are cylindrical steel components mounted to the undercarriage frame that interface with the track chain as it moves. Track rollers (bottom) sit on the lower frame and bear the machine’s weight, allowing the track chain to pass beneath them with minimal friction. Carrier rollers (top) sit on the upper frame and support the track chain as it travels back from the drive sprocket to the front idler, preventing sag and keeping the chain aligned.
Yes, when sourced from a quality supplier (like EquipXR). EquipXR’s aftermarket rollers are manufactured to meet or exceed OEM specifications for dimensions, material hardness, sealing systems, and load ratings. Independent quality control and precision machining ensure that our parts perform reliably across the same range of conditions as dealer-supplied components. Many operators find that quality aftermarket rollers offer comparable or better service life at a significantly lower cost. Plus our dozer aftermarket parts are all back by an extensive warranty.
Yes. EquipXR stocks aftermarket rollers compatible with all major dozer manufacturers, including Caterpillar (CAT), Komatsu, John Deere, CASE, Liebherr, Dresser, Volvo, Hitachi, and others. We also support operators running legacy and less common machine models. If you don’t see your brand listed, contact our parts specialists. We’re continuously expanding our inventory and can often track down hard-to-find rollers for older or less common machines.
Signs Your Dozer Rollers Need Replacement
Roller components tend to wear gradually, which can lead to larger, more expensive problems once they reach a certain point. Catching that wear early will help you avoid added damage across the rest of the undercarriage. Watch for these warning signs:
- The most common early indicator that a roller’s internal lubrication is compromised is oil leaks around the roller seal
- Flat spots or uneven wear on the roller shell are visible during a walkaround inspection
- Cracking or physical damage to the roller shell caused by impact with rocks or debris
- Abnormal noise from the undercarriage during operation (grinding, squealing, or knocking)
- Track sag or misalignment that persists even after proper tensioning
- Excessive heat is felt on the roller housing after operation, indicating bearing failure or a lack of lubrication
- Visible wobble in the roller during operation, suggesting bearing wear or shaft damage
Catching worn or damaged rollers early prevents costly collateral damage to your track chain, idlers, and sprockets.
Related Dozer Undercarriage Parts
Rollers work as part of a larger undercarriage system. When inspecting or replacing your rollers, it’s worth evaluating the condition of these related components as well:
- Dozer Undercarriage Idlers (Front Idlers & Rear Idlers): guide and tension the track chain; often wear in tandem with track rollers
- Dozer Sprockets & Segments: transfer power to the track chain; heavy wear here often indicates overall undercarriage fatigue
- Dozer Track Chains & Track Shoes: the foundation of your undercarriage; worn rollers accelerate chain wear
- Dozer Final Drives: convert engine power into track movement; inspect when undercarriage components are already apart
EquipXR stocks all of these components for all major dozer brands. View our full Dozer Parts inventory or contact our team for help sourcing multiple components at once.
Why Choose EquipXR for Ordering Your Dozer Roller Parts
For many buyers, the goal is straightforward. They want a replacement roller that installs correctly, performs well, and helps maintain the integrity of the undercarriage system over time. We make sure you’re getting the right part the first time so you can minimize downtime and get back to work. EquipXR is a leading supplier of aftermarket heavy equipment parts, and we’ve built our reputation on three things: quality parts, honest fitment support, and fast delivery.
High-Quality Parts
Every roller meets or exceeds original equipment manufacturer specifications.
Expert Support
When you have a fitment question, or a rebuild vs. replace decision to work through, you’re talking to a true heavy equipment expert.
Competitive Pricing & Shipping
Aftermarket pricing offers real savings compared to dealer pricing. We know downtime costs money, so we ship the parts you need, quickly.
Large Parts Inventory
We maintain an inventory of the most commonly needed roller components for the most common dozer models.
Fleet & Dealer Support
EquipXR can support volume orders, scheduled parts replenishment, and parts sourcing for models that OEM dealers no longer actively support.
Get the Dozer Rollers Your Equipment Needs – Fast
The right dozer roller helps protect the rest of your undercarriage. Let us help you find it. If you need track rollers or carrier rollers for a bulldozer, contact EquipXR with your machine make, model, serial number, or reference part number. We will help you identify the right aftermarket replacement and get your order moving quickly.
Whether you need a single replacement roller or a full undercarriage refresh, EquipXR has you covered. Call or text our parts team at (937) 369-0949, email info@EquipXR.com, or fill out our parts request form. Tell us your machine’s make, model, and serial number, and we’ll get the right dozer rollers on their way to you.