17A5012111 / 17A-50-12111 EQUALIZER BAR KOMATSU

The 17A5012111 / 17A-50-12111 EQUALIZER BAR KOMATSU is a heavy-duty suspension and undercarriage support part used on selected Komatsu D155 bulldozers. Public parts catalogs identify this number as an equalizer bar, and marketplace listings connect it directly with the D155AX-5 family and the equalizer bar, bogie, and pivot shaft product group. That tells buyers immediately that this is not a light bracket or a secondary support piece. It is a major structural component in the dozer’s undercarriage and frame-related system.

From the images, the 17A5012111 / 17A-50-12111 EQUALIZER BAR KOMATSU has the visual profile expected from a serious balance and load-transfer component. The body is long, thick, and heavily reinforced, with large eye sections at both ends, a central boss area, and machined bushing or bearing interfaces. The crate photos also reinforce the point that this is a substantial industrial part intended for export packing and freight handling rather than parcel-style shipping. Those visible details match the published reference weight of 222.3 kg for this number.

At 3GEN Export, we supply the 17A5012111 / 17A-50-12111 EQUALIZER BAR KOMATSU as an OEM supplier for customers who need dependable heavy machinery spare parts and fast international delivery. We deliver all over the world in 5 working days, helping fleet owners, repair workshops, resellers, and contractors reduce downtime on Komatsu dozers.

What Is 17A5012111 / 17A-50-12111 EQUALIZER BAR KOMATSU?

The 17A5012111 / 17A-50-12111 EQUALIZER BAR KOMATSU is a model-specific equalizer bar used within the suspension and related undercarriage structure of Komatsu D155-series bulldozers. Public catalog pages list it by name as “EQUALIZER BAR,” while MTK Makina markets the same number as an equalizer bar for the Komatsu D155AX-5 and places it in the equalizer bar, bogie, and pivot shaft category. Public cross-reference material also links this number with the broader D155A and D155AX3/5 machine family.

In practical terms, that means the 17A5012111 / 17A-50-12111 EQUALIZER BAR KOMATSU belongs to one of the most important load-balancing areas of the machine. An equalizer bar in a bulldozer helps the undercarriage and main frame respond to uneven terrain while distributing weight and shock more effectively across the machine. Even when buyers do not search by system name, they understand the consequence: if this part is worn, cracked, bent, or dimensionally incorrect, the dozer can lose stability, place more stress on related components, and become more expensive to maintain over time.

For e-commerce and industrial search behavior, this number is also strong because customers look for it in several different ways. Some search the continuous number 17A5012111. Others use the hyphenated form 17A-50-12111. Others search by the full product title, by the D155 machine family, or by phrases such as Komatsu equalizer bar, D155 equalizer bar, or D155AX-5 equalizer bar. A well-built product page should capture all of those paths naturally without forcing the exact-match phrase too often.

Why This Part Matters on a Komatsu Dozer

Bulldozers work under high impact, constant vibration, twisting forces, and shifting loads from rough ground, pushing resistance, ripping work, and continuous undercarriage articulation. In that environment, the equalizer bar is not just another casting. It is a core support piece that helps the machine maintain balance between the frame and the undercarriage system. Public references consistently classify this number inside equalizer bar parts listings for D155 models, which confirms its structural role.

That is why professional buyers usually source the 17A5012111 / 17A-50-12111 EQUALIZER BAR KOMATSU with a clear repair objective. They may be rebuilding a worn suspension group, correcting movement in a pivot-related area, replacing a damaged original bar after long service, or restoring the machine before resale or major field work. In every one of those situations, fit, material integrity, and machining quality matter far more than superficial appearance.

When this type of part is correct, the surrounding system can work more predictably. When it is wrong, even a strong-looking replacement can create costly follow-up problems. That is why serious buyers prefer a supplier that understands heavy machinery parts, export handling, and model-specific compatibility.

Visual and Structural Features Seen in the Images

Long Reinforced Main Body

The first thing visible in the photos is the long, heavy beam-like structure. The body is not flat or simplistic. It has reinforced shaping, thicker mass around the ends, and a strong center section. This kind of geometry is typical for components that must absorb and distribute load rather than simply hold another part in place.

Large Eye Sections at Both Ends

Each end of the part shows a large circular eye or bore area, which strongly suggests a connection through pins, bushings, or bearing-supported pivot points. These large interfaces are what you would expect on an equalizer bar that must work with adjacent heavy undercarriage components under repeated load cycles.

Machined Contact and Bearing Zones

The visible metallic interfaces at the ends indicate that the critical seating and bearing areas are machined rather than left as raw cast surfaces. That matters because equalizer bar performance depends on correct contact, accurate bore dimensions, and stable engagement with associated shafts, bushings, or pin assemblies.

Central Boss Section

The center of the bar includes a thicker boss-style section, which visually suggests a load concentration area or a mounting/working interface inside the suspension group. Even without an engineering drawing, the design language clearly communicates that this is a structural part built for a major machine function.

Export-Ready Crating

The photos showing wooden crates and bubble wrapping are also relevant for buyers. A part with this size and weight needs proper industrial packaging. The crate images support the expectation that the component is handled as a heavy export item, which is important for international purchasers planning freight, customs, and unloading.

Compatible KOMATSU Models

Public parts catalogs and aftermarket references connect this number to specific Komatsu D155 machines. The clearest catalog list shows the following applications:

D155A-3 S/N 60001-up

D155A-5 S/N 65001-up

D155A-5 S/N 65001-up, Extreme Cold Terrain / Cold Weather specification

D155AX-3 S/N 60001-up

D155AX-5 S/N 70001-up

A separate cross-reference PDF also links 17A-50-12111 with D155A and D155AX3/5 families, and MTK Makina specifically markets the part for the D155AX-5. That means the most reliable model family wording for a product page is that the 17A5012111 / 17A-50-12111 EQUALIZER BAR KOMATSU is used on selected Komatsu D155A and D155AX bulldozers, especially D155A-3, D155A-5, D155AX-3, and D155AX-5 applications.

Because heavy equipment fitment can vary by serial number, regional specification, and production version, the safest purchasing method is always to confirm the full machine model and serial number before order approval. That is especially important when a buyer is working from an old removed part, a partial catalog entry, or a machine with multiple historical repairs.

Weight of 17A5012111 / 17A-50-12111 EQUALIZER BAR KOMATSU

A public Komatsu parts catalog listing gives the weight of 17A-50-12111 as 222.3 kg. That figure is consistent with the size, mass, and crated presentation visible in the images, and it is the most useful published weight reference for warehouse planning, freight estimation, and customer expectations.

For your website, the cleanest presentation is:

Approximate weight: 235 kg.

That wording is practical because it helps the buyer understand that the part is a major undercarriage component and not something handled like ordinary small spare parts. It also supports better planning for palletization, freight quotations, and unloading arrangements at the destination.

Technical Details and Buying Reference

Part number formats

The main searchable formats are 17A5012111 and 17A-50-12111. Both formats appear in public listings and catalogs, so both should be included on the page for strong search visibility.

Product type

Public sources identify this number as an equalizer bar.

Machine family

The part is associated with selected Komatsu D155A and D155AX bulldozers, with catalog references specifically naming D155A-3, D155A-5, D155AX-3, and D155AX-5.

Product group

MTK Makina places the item in the equalizer bar, bogie, and pivot shaft category, which aligns with its suspension-related role.

Approximate published weight

235 kg.

How the Part Supports Dozer Performance

An equalizer bar plays a central role in how a bulldozer behaves on uneven ground. The machine does not operate on perfect surfaces. It travels over broken terrain, rock, loose fill, compacted earth, and sloped work zones. In those conditions, the undercarriage and frame need a way to manage movement and distribute force instead of transmitting every shock directly into one rigid path.

That is where the 17A5012111 / 17A-50-12111 EQUALIZER BAR KOMATSU matters. A correctly manufactured and correctly installed unit helps the dozer maintain more stable support across the undercarriage structure. It supports alignment, load balance, and predictable mechanical response while related pins, bushings, shafts, and covers do their part in the assembly.

For maintenance teams, the value is practical. A sound replacement can help restore correct geometry in the suspension group, reduce excessive play, and protect connected parts from avoidable stress. In heavy equipment ownership, that kind of protection is never minor. It directly affects uptime, repair frequency, and total operating cost.

Benefits of a High-Quality Replacement

Better fit during installation

A properly made equalizer bar should align more predictably with its associated mounting and pivot points. That can save workshop time and reduce the need for correction during assembly.

Improved structural stability

Because the part works in a load-balancing area, dimensional accuracy and material quality directly affect how the surrounding system performs under working load.

Reduced secondary wear

When the equalizer bar fits and seats correctly, nearby parts such as bushings, shafts, covers, and pivot-related components are less likely to experience uneven force concentration.

Better long-term value

For fleet owners and contractors, the real benefit is not just the replacement itself. It is the improved reliability of the machine after the repair is completed.

Strong search value online

This part number performs well in industrial search because buyers use exact numbers, hyphenated numbers, model-based searches, and descriptive phrases. A page that includes those naturally can rank better and convert better.

Installation and Service Guidance

Before installing the 17A5012111 / 17A-50-12111 EQUALIZER BAR KOMATSU, confirm the exact machine model and serial number. Public references already show that compatibility is tied to specific D155 variants and serial ranges, so verification is the smartest step before purchase and again before fitting.

During installation, the surrounding suspension and pivot-related components should be inspected carefully. Check the associated shaft surfaces, bushing conditions, mounting bores, covers, seals, and connected hardware. A new equalizer bar installed into a worn system may not deliver the full performance expected from the replacement.

Because the bar is a heavy component, safe lifting and proper workshop handling are also important. The published 222.3 kg weight means installation planning should include suitable lifting equipment and secure positioning during assembly.

After installation, a follow-up inspection after initial service is good practice. Early rechecking can help confirm that the part has seated correctly and that there is no abnormal movement or uneven wear developing in the connected assembly.

Why Buy from 3GEN Export

At 3GEN Export, we understand that customers searching for a Komatsu D155 equalizer bar are usually not browsing casually. They are solving a serious machine problem. A bulldozer waiting for a structural suspension part can delay mining support, earthmoving, roadbuilding, quarry work, stockpile management, and site preparation schedules.

That is why we supply the 17A5012111 / 17A-50-12111 EQUALIZER BAR KOMATSU as an OEM supplier and deliver all over the world in 5 working days. Our approach is focused on clear product identification, dependable export packing, and fast global supply for heavy machinery spare parts.

For buyers, that means less time chasing uncertain sellers and more time getting the correct part moving toward the machine that needs it.

Search Intent and SEO Value

This product is strong for both classic SEO and modern answer-driven search because buyers use several keyword styles. Useful search variants include:

17A5012111

17A-50-12111

17A 50 12111

Komatsu equalizer bar D155

D155AX-5 equalizer bar

D155A-5 equalizer bar

Komatsu D155 suspension equalizer bar

Komatsu equalizer bar part number 17A-50-12111

Using these naturally on the page helps the content match real purchasing behavior without overloading the exact-match keyword.

Final Summary

The 17A5012111 / 17A-50-12111 EQUALIZER BAR KOMATSU is a major suspension and undercarriage support component for selected Komatsu D155 bulldozers. Public sources identify it as an equalizer bar, place it in the equalizer bar, bogie, and pivot shaft product group, and connect it with D155A-3, D155A-5, D155AX-3, and D155AX-5 applications, including serial-specific listings. The published reference weight is 235 kg, which matches the heavy-duty nature visible in the product and crate photos.

For customers who need dependable supply, 3GEN Export offers this product as an OEM supplier with worldwide delivery in 5 working days.

Manufactured in Turkey, these products are made using the latest technologies and built to meet the highest international standards. Each machine is a high-quality copy of the original, ensuring durability, precision, and performance that you can rely on for modern construction and metalworking projects.