2347113243, 234-71-13243 FLANGE KOMATSU

The 2347113243, 234-71-13243 FLANGE KOMATSU is a grader drive connection part used in Komatsu circle reverse gear systems. Public catalog sources most often identify this number as a JOINT, while aftermarket sellers also describe it as a circle rotation flange or a flange-style coupling part. Taken together with the uploaded images, the safest conclusion is that this is a splined flange-type drive connection used to transmit motion inside the circle reverse gear assembly of Komatsu motor graders.

From the images, the 234-71-13243 flange has a thick circular body, a precision-machined face, a splined internal bore, and a smaller hub section on the back. It also has two large relief holes and one central threaded hole on the face. That geometry strongly suggests a torque-transfer role rather than a decorative cover or passive spacer. The internal splines are designed to mate with a shaft, while the flange body provides stable alignment and a secure drive interface under repeated rotational load. That matches its placement in circle reverse gear catalogs for Komatsu graders.

For buyers searching by number, 2347113243, 234-71-13243 FLANGE KOMATSU is important because circle drive parts directly affect blade rotation response, grading accuracy, and overall driveline smoothness. When a flange or joint in this area wears, loosens, or develops spline damage, the grader can begin to show backlash, inconsistent circle movement, vibration, or poor control during fine leveling work. In daily operation, that means slower finishing passes and more stress on connected components.

At 3GEN Export, we supply 2347113243, 234-71-13243 FLANGE KOMATSU as an OEM supplier for global buyers who need dependable heavy machinery spare parts and worldwide delivery in 5 working days.

What 2347113243, 234-71-13243 FLANGE KOMATSU Actually Does

Although the part naming varies across the market, the catalog context is consistent. Multiple sources place 234-71-13243 in the circle reverse gear area of Komatsu graders. That is the strongest clue to its function. A part in this location works in the drive system that rotates the grader circle, allowing the moldboard assembly to turn accurately during cutting, shaping, ditching, and road maintenance tasks.

In simple workshop language, the 234-71-13243 flange acts as a connection member between rotating drivetrain elements. The internal splines suggest it mounts positively onto a shaft instead of relying on friction alone. The flange body then helps carry alignment and transfer rotational force through the assembly. Public sources calling the same number a JOINT support exactly that interpretation, while sellers using the phrase circle rotation flange reflect the visible shape seen in the images.

That makes this component more important than its compact size might suggest. In a grader, smooth circle rotation is not optional. It is central to blade positioning and accurate surface correction. If the splined connection becomes worn, the machine may not hold response as cleanly under load, especially in repeated angling and repositioning work. Replacing the correct 2347113243 flange at the right time can help protect the larger reverse gear assembly from avoidable wear.

Why the Design Matters

The uploaded images show a solid machined steel part with a broad flange face and a central spline bore. That shape is purposeful. The broad face gives stable seating and load distribution, while the splined bore allows direct torque transmission. The hub section at the rear gives additional seating depth and helps maintain accurate positioning in the assembly. Visually, this is exactly the sort of part used where rotational alignment and repeatable fit matter. The circle reverse gear catalog references make that visual reading more credible.

The two visible face holes also matter. They may be related to assembly balance, mounting access, or lubrication and service geometry, depending on the exact surrounding setup. The central threaded hole suggests the part may use a fastening or service-point arrangement as part of installation or retention. Because public sources identify the number but do not publish a full engineering drawing, it is better to describe these as visible structural features rather than claim a single unverified hole function.

This is why 234-71-13243 flange selection should never be based on appearance alone. A spline count, bore size, hub depth, and flange thickness that are even slightly wrong can create fitment issues, premature wear, or driveline looseness. For circle reverse gear parts, dimensional accuracy matters just as much as material quality.

Compatible Komatsu Models

Public fitment references show that the 2347113243, 234-71-13243 FLANGE KOMATSU is used across a wide range of Komatsu motor graders. The most detailed public applicability lists include the following models:

• GD305A-1
• GD305A-1A
• GD355A-1
• GD355A-1S
• GD405A-1
• GD405A-2
• GD405A-2S
• GD505A-3
• GD505A-3A
• GD510R-1
• GD511A-1
• GD521A-1
• GD521A-1E
• GD525A-1
• GD605A-5
• GD605A-5S
• GD611A-1
• GD623A-1
• GD661A-1
• GD705A-4
• GD705A-4A

Other commercial fitment sources extend the range further and mention additional grader families such as GD28AC-1, GD31-3H, GD31RC-3A, GD37-5H, GD37-6H, GD40HT-2, GD600R-1, GD705A-3A, and GD705R-1. That broader pattern suggests the same flange or joint concept was used across several older Komatsu grader platforms, but serial-number confirmation remains essential before purchase.

Important fitment note

Because grader drivetrain parts are often serial-sensitive, the safest buying practice is to verify the machine model, serial number, and circle reverse gear page before ordering 234-71-13243. Public sources clearly show the part in multiple grader families, but they also tie it to specific circle reverse gear units and serial breaks.

Publicly Listed Weight

Weight data for the 2347113243 flange is close, but not perfectly identical across sources. One catalog source lists 3.501 kg, while other market listings show 3.5 kg or 3.680 kg. That is normal for heavy equipment parts sold through different systems, where packing rules, rounding methods, or database variations can create small differences.

For product-page use, the most practical and honest wording is:

Estimated weight: 3.50–3.68 kg
Recommended listing weight: 3.50 kg

That keeps the listing commercially useful while staying aligned with public references.

Technical Details and Estimated Specifications

Part Identification

Part number: 2347113243

Alternative format: 234-71-13243

Product naming used in the market: JOINT, circle rotation flange, flange, or flange-style drive connection. Public catalog naming leans toward JOINT, while aftermarket sales language often leans toward flange.

Equipment Type

Komatsu motor graders, especially in applications involving the circle reverse gear system.

Assembly Area

Circle reverse gear / circle rotation drive section.

Estimated Material

The uploaded images show a machined steel component with a metallic finish consistent with hardened or precision-machined drivetrain steel. Public catalogs do not publish a detailed metallurgy note in the snippets available, so the most accurate wording is heavy-duty machined steel drive component rather than a very specific alloy claim.

Estimated Weight

Approx. 3.50 kg, with public references ranging up to 3.680 kg.

Why Buyers Replace This Part

Spline wear

If the spline bore begins to wear, the connection may lose precision. That can create backlash, noise, and reduced torque-transfer stability.

Mounting-face damage

A distorted or damaged flange face can affect seating quality, which in turn influences alignment and rotational smoothness.

Circle drive looseness

In the circle reverse gear system, even a relatively small amount of play can reduce the operator’s sense of control during fine grading work.

Preventive rebuild work

Many shops replace flange or joint parts during circle reverse gear service because reusing a worn connection can compromise the rest of the repair.

What the Images Tell Us

The images show a component with clean machining, a uniform splined bore, and a compact but heavy section profile. That usually points to a part designed for rotational load rather than light support duty. The face geometry is also symmetrical enough to suggest balance and repeatable seating were important in the original design.

There are no external gear teeth, no bracket wings, and no flexible hose features. Instead, the defining features are the splined center, flange mass, and controlled machined surfaces. Combined with the public catalog placement in circle reverse gear assemblies, that makes the part’s role much clearer: it is a drive-side connection member, not a cover, seal carrier, or passive ring.

How to Check Before Ordering

Before ordering 2347113243, 234-71-13243 FLANGE KOMATSU, it is smart to confirm four things.

Check the exact number

Nearby numbers in the same family can look similar but belong to different joint positions or related circle reverse gear parts. Public references also show 234-71-13242 and 234-71-13244 as related numbers.

Check the model and serial range

A grader family alone is not always enough. The same platform can have different circle reverse gear arrangements across serial breaks.

Check the old part visually

Spline form, body depth, and face-hole layout should all match. The uploaded images make those visible checkpoints easier for workshops and procurement teams.

Check whether the market names differ

Some suppliers will call this same number a JOINT. Others will market it as a flange or circle rotation flange. That naming difference should not confuse the ordering process as long as the part number and fitment are confirmed.

Why 3GEN Export Is the Right Supply Partner

When customers search for 234-71-13243 flange, they are usually trying to solve a real grader maintenance problem, not browse catalog theory. They need the correct part number, fast export handling, and a supplier who understands heavy machinery applications.

3GEN Export supports that need as an OEM supplier focused on heavy machinery spare parts. We understand that grader circle drive parts affect uptime directly. If the machine is waiting for the wrong flange, the repair stops. That is why we focus on part-number accuracy, fast communication, and worldwide delivery in 5 working days.

For international buyers, contractors, dealers, and repair workshops, that combination matters just as much as the component itself.

Final Evaluation

The public evidence supports a clear summary. The 2347113243, 234-71-13243 FLANGE KOMATSU is a splined drive connection part used in Komatsu motor grader circle reverse gear systems. Public catalogs mainly name it as a JOINT, while aftermarket sources also market it as a circle rotation flange. The uploaded images strongly support the flange-style description because the part has a heavy circular body, spline bore, and machined drive-contact geometry. Public weight references place it around 3.50 kg, with some listings reaching 3.680 kg, and public fitment data ties it to a broad range of Komatsu graders including GD305A, GD355A, GD405A, GD505A, GD511A, GD521A, GD525A, GD605A, GD611A, GD623A, GD661A, and GD705A families.

For your website, the strongest commercial positioning is simple: 3GEN Export supplies 2347113243, 234-71-13243 FLANGE KOMATSU as an OEM supplier with global shipping support and delivery in 5 working days.

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