2337113354, 233-71-13354 GEAR KOMATSU

The 2337113354, 233-71-13354 GEAR KOMATSU is a circle-drive component used in the work-equipment side of Komatsu motor graders. Public parts-catalog and supplier pages consistently place this reference in the circle reverse gear area, while seller listings describe it as a gear, circle reverse gear, or circle rotation gear. The strongest public application evidence links it to a broad range of Komatsu grader families, and one supplier specifically markets it for the GD655 grader under the Circle Drawbar Support and Circle Reverse category.

That matters because the circle reverse group is one of the key working zones on a motor grader. This is the part of the machine that helps transmit and manage the movement used to rotate the moldboard circle, which directly affects blade angle control and grading precision. Komatsu’s own GD655 product information emphasizes that motor graders are built for smooth accuracy, optimized control, and versatile work across grading applications, so a part in the circle-drive system is never a minor detail in real field use.

From the uploaded images, the 2337113354, 233-71-13354 GEAR KOMATSU does not look like a simple external-tooth spur gear. Instead, it appears as a machined cylindrical drive member with a large precision bore, reinforced outer body, relief windows, and mounting holes. That visual profile actually makes sense when paired with the public descriptions “circle reverse gear” and “circle rotation gear.” In heavy grader assemblies, catalog naming often reflects the part’s function inside the circle-drive mechanism rather than the shape buyers might expect from the word gear alone. The images support that interpretation very well.

What the 2337113354, 233-71-13354 GEAR KOMATSU does

The main job of the 2337113354, 233-71-13354 GEAR KOMATSU is to support the grader’s circle reverse or circle rotation drive system. Public parts references repeatedly place this number under CIRCLE REVERSE GEAR or related circle-drive sections, which indicates that it belongs to the mechanism used to rotate the blade circle during grader operation. Supplier pages also describe it as a circle rotation gear, reinforcing the same application logic.

On a motor grader, circle rotation is not a background function. It is central to how the machine adjusts moldboard position for cutting angle, ditch shaping, shoulder trimming, windrowing, and fine surface correction. If a circle-drive component in that system wears badly, runs loose, or loses dimensional integrity, the machine can become less accurate and less predictable in blade control. That is why the 2337113354, 233-71-13354 GEAR KOMATSU matters to operators, workshops, and fleet owners alike. It contributes to the part of the grader that turns raw hydraulic or mechanical input into practical blade-positioning control.

Public supplier descriptions help complete the picture. MTK Makina lists this exact number in the Circle Drawbar Support and Circle Reverse group for a Komatsu grader, and another seller markets it as a Komatsu Motor Grader Circle Gear for GD511-type applications. Together, those references support the same conclusion: this is a circle-drive gear component used in the moldboard rotation system of Komatsu graders.

Why this circle-drive gear matters in real grading work

Motor graders are valuable because they can make controlled, repeatable corrections over long distances. Komatsu describes the GD655 series as a machine designed for smooth accuracy, optimized control, and grading versatility. Those are not abstract marketing phrases. They describe the real reason buyers spend money on grader components: the machine must hold line, shape material consistently, and let the operator make precise circle and blade changes while working.

That is why a circle reverse part like 2337113354 matters. A grader may have enough engine power and hydraulic flow, but if the circle-drive side of the work equipment develops excessive wear or backlash, blade positioning can become less crisp. In road maintenance, base preparation, haul-road shaping, and fine finish grading, even a small loss of control quality can affect productivity and result quality. A well-made 2337113354, 233-71-13354 GEAR KOMATSU helps the circle-drive assembly do its job with more stable engagement and more predictable movement. This is exactly the sort of part that influences feel, not just fit.

The official GD655 brochure also mentions a circle reverse housing in the machine’s refill capacities, which confirms the existence of a dedicated circle reverse system on the grader platform. That official machine context makes the public supplier descriptions for this gear much more believable, because they align with a real Komatsu grader subsystem rather than a vague aftermarket label.

Design review based on the uploaded images

A machined drive member, not a simple open-tooth gear

One of the most interesting things about the uploaded images is that the 2337113354, 233-71-13354 GEAR KOMATSU looks like a housed or integrated drive element rather than a classic exposed gear wheel. The component has a heavy cylindrical body, machined central bore, and structural ribs or windows around the outside. That strongly suggests it works inside a protected circle-drive arrangement where the part’s internal engagement and mounting geometry matter just as much as any external profile.

Large precision bore and seating surface

The front and rear views show a carefully machined central opening with a finished metal seating area. This is important because circle-drive components must align properly on their shaft or support location. In a grader, poor bore accuracy can lead to misalignment, poor engagement, or accelerated wear in neighboring parts. The machining seen in the images gives this component the kind of fit-critical appearance buyers expect from a serious drivetrain or circle-drive part.

Reinforced outer body with relief windows

The side openings and rib-like supports are not cosmetic. They likely reduce unnecessary mass while preserving strength and stiffness around the body of the part. In heavy machinery, this kind of geometry is common when the part needs to stay robust under torque and shock loading but also avoid being a solid oversized block. For a circle reverse gear application, that is a sensible design approach.

Mounting-hole pattern

The rear face shows multiple mounting holes around the center bore, which suggests that this part is intended to bolt or locate precisely within an assembly rather than float as a loose internal element. That detail is useful for buyers because it confirms the component is part of a structured drive arrangement, not just a simple replacement sleeve.

Industrial finish and visible production quality

The painted yellow body combined with exposed machined metal surfaces gives the part a professional heavy-equipment presentation. For ecommerce use, these images do more than show the product. They show that the part exists physically, has proper production finishing, and is shaped for a real Komatsu grader application. That builds trust before the buyer even reaches the technical details.

Compatible KOMATSU models for 2337113354, 233-71-13354 GEAR KOMATSU

The strongest model evidence comes from a public Komatsu-style parts listing that places this exact number in the CIRCLE REVERSE GEAR section across many grader models. Visible entries include GD28AC-1, GD300A-1, GD305A-1, GD305A-1A, GD31-3H, GD31RC-3A, GD355A-1S, GD355A-1, GD405A-1, GD405A-2S, GD405A-2, GD500R-2A, GD505A-2, GD505A-3A, GD505A-3, GD510R-1, GD511A-1, GD521A-1E, GD521A-1, GD523A-1, GD525A-1, GD611A-1, and GD661A-1.

A separate public search result also summarizes the fitment family as GD28AC, GD300A, GD305A, GD31, GD31RC, GD355A, GD405A, GD500R, GD505A, GD510R, GD511A, GD521A, GD525A, GD611A, and GD661A, which aligns with the longer catalog-style list above.

Another supplier page specifically markets the same exact reference as 233-71-13354 & 2337113354 GEAR KOMATSU GRADER GD655, which means seller listings also connect this part to GD655-type applications even though the broader public parts listing shown above does not visibly include GD655 on the displayed lines. Because of that mixed source picture, the safest commercial wording is that the part is publicly associated with a wide Komatsu grader family and is also sold by at least one supplier as a GD655 circle reverse gear. Final fitment should therefore be confirmed by serial number and parts book before sale.

Verified and publicly linked grader families

Komatsu GD28AC-1
Komatsu GD300A-1
Komatsu GD305A-1
Komatsu GD305A-1A
Komatsu GD31-3H
Komatsu GD31RC-3A
Komatsu GD355A-1S
Komatsu GD355A-1
Komatsu GD405A-1
Komatsu GD405A-2S
Komatsu GD405A-2
Komatsu GD500R-2A
Komatsu GD505A-2
Komatsu GD505A-3A
Komatsu GD505A-3
Komatsu GD510R-1
Komatsu GD511A-1
Komatsu GD521A-1E
Komatsu GD521A-1
Komatsu GD523A-1
Komatsu GD525A-1
Komatsu GD611A-1
Komatsu GD661A-1
Supplier-listed: Komatsu GD655

Technical details of 2337113354, 233-71-13354 GEAR KOMATSU

Official public naming and application language

Public sources describe this reference variously as GEAR, circle reverse gear, and circle rotation gear. Those descriptions are consistent rather than contradictory. They all point to the same general role: a circle-drive gear component used in the grader work-equipment system.

Part number formats

2337113354
233-71-13354

Product group

The most consistent group names I found are CIRCLE REVERSE GEAR and Circle Drawbar Support and Circle Reverse. Those labels place the part squarely in the moldboard circle-drive side of the grader rather than in engine, transmission, or axle systems.

Weight in KG

Public seller weights vary. MTK Makina presents the exact number with 7 kg in the title, UCASLAR lists 7.93 kg, and AutoGorilla lists an ITR replacement version at approx. 9 kg for GD511-type applications. Because those figures do not match exactly, the safest ecommerce statement is approximate weight: 7–8 kg, with 7.93 kg being the clearest exact seller-listed value for the specific reference in one open product page.

Material and construction

One public seller page for an ITR replacement version lists the material as steel, which is mechanically plausible for a torque-carrying circle-drive component. I did not find an official Komatsu metallurgy sheet for this exact number, so it is best to describe the material commercially as a heavy-duty machined metal grader gear component unless you have a supplier-specific material certificate.

Why buyers search for this part in different ways

This is exactly the type of industrial spare part that gets searched under multiple patterns. Some buyers type 2337113354from ERP software or a spreadsheet. Others use 233-71-13354 from a printed parts book. Others search phrases like Komatsu circle reverse gear, circle rotation gear, or GD655 grader circle gear after identifying the function rather than the number. The supplier and catalog pages themselves reflect this behavior by using multiple labels for the same reference.

That is why the best SEO strategy for this page is not to repeat the exact phrase unnaturally in every sentence. Instead, the exact product name should appear in the title, introduction, technical section, fitment section, and summary, while the body copy uses natural supporting terms such as circle reverse gear, circle rotation gear, grader circle-drive component, and Komatsu moldboard rotation part. That structure helps both search visibility and buyer readability.

Maintenance value and commercial importance

The 2337113354, 233-71-13354 GEAR KOMATSU is a smart maintenance product because it sits in a precision-sensitive section of the grader. Circle-drive wear is not something operators ignore for long. Once the blade circle becomes less responsive or less stable, machine performance and finish quality can suffer. Replacing a worn or questionable component in the circle reverse group can therefore support better long-term control and help prevent wear from spreading deeper into the assembly.

For workshops, that means this part is more than a catalog number. It is part of the system that keeps the grader useful as a precision finishing machine. For fleet owners, it is tied to uptime and work quality. For resellers, it is attractive because it is known by a precise Komatsu number and by a functional application that buyers actively search.

3GEN Export supply advantage

At 3GEN Export, we supply the 2337113354, 233-71-13354 GEAR KOMATSU as an OEM supplier for heavy machinery spare parts, and we deliver worldwide in 5 working days.

That matters because circle-drive repairs are often time-sensitive. A grader waiting on the right circle reverse component can delay a whole maintenance plan, especially when the machine is already opened for service. Fast supply and clear part identification reduce that risk.

Final summary

The 2337113354, 233-71-13354 GEAR KOMATSU is best understood as a Komatsu motor grader circle-drive component used in the circle reverse gear side of the work-equipment system. Public sources describe it as a gear, a circle reverse gear, and a circle rotation gear, while catalog-style model listings connect it with a broad range of graders including GD28AC, GD300A, GD305A, GD31, GD31RC, GD355A, GD405A, GD500R, GD505A, GD510R, GD511A, GD521A, GD523A, GD525A, GD611A, and GD661A families. Seller weight figures vary, but the public numbers cluster around roughly 7 to 8 kg, with 7.93 kg as the clearest exact seller-listed value for the exact reference.

From the uploaded images, the part looks like a machined cylindrical circle-drive member with a precision bore, reinforced outer structure, and mounting-hole pattern suited to heavy grader work. That visual evidence fits the public application language well. For search, both 2337113354 and 233-71-13354 should appear on the page. For application, the safest position is that it is a Komatsu grader circle reverse gear component with wide family usage and seller-listed GD655 relevance. And for supply confidence, 3GEN Export offers it with worldwide delivery in 5 working days.