4231513250, 423-15-13250 YOKE KOMATSU

The 4231513250, 423-15-13250 YOKE KOMATSU is a transmission-and-drive spare part for Komatsu graders, and it sits in one of those mechanical positions where fit, alignment, and torque transfer matter more than outward size. The strongest public product page for the exact part number is 3GEN Export’s own listing, which places it in Transmission & Drive Components, gives the product name as YOKE KOMATSU, and lists an approximate weight of 2.650 kg. That same page says it is intended for Komatsu grader applications, especially GD-series machines, and describes its purpose as supporting drive-system power transmission.

At the same time, there is an important detail that should be handled honestly: several other public sources identify the exact same OEM number as COUPLING or COUPLING COMPLETE, not as yoke. 3GEN calls 423-15-13250 a coupling for Komatsu graders, 3GEN lists it as coupling with a weight of 2.82 kg, and catalog-style marketplace results describe the same number as coupling complete. A seller page also ties the number specifically to the GD-661grader. That means the public naming is not fully uniform, even though the sources consistently place the part in the grader drivetrain and transmission side of the machine.

That naming difference actually makes sense when you look at the uploaded images. The part has the visual character of a compact splined drive-interface component rather than a plain bracket or cover. One side shows a splined internal bore that is clearly meant to mate with a shaft. The opposite face appears closed and machined, while the four threaded fastener points suggest that it works as a retained drive member or coupling-side yoke inside a transmission or drive assembly. In practical mechanical language, it is reasonable to describe the 4231513250, 423-15-13250 YOKE KOMATSU as a yoke-type coupling component in the grader drivetrain. That phrasing respects both the uploaded geometry and the conflicting public naming.

What this part appears to do

Based on the public category evidence and the visible design, this part appears to serve as a torque-transfer interface in the grader transmission or drive system. The splined bore is the biggest clue. A splined inner profile is used where rotational force has to be transmitted positively from a mating shaft without slip. That means this is not a decorative cover, a passive spacer, or a simple retainer. It is a working drivetrain component designed to engage another rotating part.

The four threaded holes on the mounting face also matter. They suggest that the component is intended to bolt to a companion piece or clamp within a larger drive assembly. That is exactly the sort of layout you see on yokes and couplings that connect one rotating element to another while keeping the assembly centered and secure. Public seller wording supports this interpretation: 3GEN describes the part as supporting smooth power transfer and drivetrain alignment, while other sellers call it a coupling for Komatsu graders.

In grader service, a part like this usually belongs in a section where rotational force has to move cleanly through the machine without excessive backlash or misalignment. When that kind of component wears, cracks, or loses dimensional accuracy, it can affect neighboring shafts, bearings, and couplings. That is why buyers typically search numbers like 4231513250 or 423-15-13250 during real repair work, not casual browsing. This is the kind of part that matters when a transmission or drive section is already open and the workshop needs the correct interface component to restore proper engagement.

Why the 4231513250, 423-15-13250 YOKE KOMATSU matters in grader performance

Motor graders depend on precise and reliable power delivery. Even though operators mostly think about moldboard control, articulation, and steering feel, the drivetrain underneath has to deliver smooth torque if the machine is going to behave predictably on the job. Components that connect shafts and transmit rotation play a quiet but essential role in that performance.

A yoke or coupling part in the transmission-and-drive group affects how steadily force is passed through the assembly. If the fit to the splined shaft is correct and the bolted interface remains stable, the machine can maintain better rotational accuracy through the connected section. If the part is worn or poorly matched, that same location can become a source of looseness, vibration, or uneven loading. Over time, that can contribute to harder shifting, poor power delivery feel, increased stress on surrounding bearings, or premature wear deeper in the drivetrain.

That is why the 4231513250, 423-15-13250 YOKE KOMATSU deserves a serious product page even though it is compact. In the field, these are exactly the components that keep power transmission clean and mechanically dependable. Road maintenance crews, municipal fleets, quarry support operations, and infrastructure contractors all rely on graders to deliver stable motion under varying surface resistance. A drivetrain interface part that holds alignment and transmits torque correctly contributes directly to uptime and equipment confidence.

Reading the uploaded images carefully

The uploaded images are especially helpful here because they show both the exterior form and the internal geometry.

One face is clearly machined into a shallow circular cup with a centered recess. The other face reveals the internal spline teeth. That combination strongly suggests a one-piece drive member rather than two loose separate parts. The spline pattern looks deep enough for meaningful shaft engagement, which supports a torque-carrying function rather than a light indexing duty.

Around the face, the four threaded holes are evenly arranged in paired mounting pads. This layout is consistent with a bolted interface where another component attaches to the yoke or coupling body. The outer cylindrical section below the face also appears machined, which is a sign that the part likely seats into or around another precisely fitted mechanical location.

In other words, the images support the idea that this is a precision drive connection component. The exact Komatsu factory terminology may differ by catalog and market, but the mechanical role suggested by the photographs is very consistent with what the public sources say: a transmission-and-drive part used on Komatsu graders for power transmission.

Public naming conflict: yoke or coupling?

This is the most important trust point for this product, so it is better to address it directly instead of pretending all sources agree.

3GEN Export publicly lists 4231513250, 423-15-13250 as YOKE KOMATSU and places it in the transmission-and-drive category. 3GEN publicly lists the same number as COUPLING KOMATSU GRADER. 3GEN also uses Coupling. Marketplace-style catalog results describe it as COUPLING COMPLETE. A public Komatsu parts list excerpt also shows 423-15-13250 labeled as COUPLING among nearby transmission-related parts.

The most reasonable way to interpret that is not that one source must be completely wrong, but that the part is being described from slightly different commercial angles. In industrial parts sales, a single component can be called a yoke by one seller and a coupling by another if it functions as a coupling-side yoke or if it belongs to a coupling assembly. Since the images clearly show a splined, bolted, torque-transfer piece, both terms are mechanically plausible in context.

So, the most honest product-page position is this:

• Exact public number: 4231513250 / 423-15-13250
• Strongest commercial categories: Komatsu grader transmission and drive
• Public naming varies between Yoke, Coupling, and Coupling Complete
• Best neutral technical interpretation: a yoke-type drivetrain coupling component

That kind of clarity is useful for buyers because it helps them cross-reference old supplier quotes, catalog records, and internal stock systems without confusion.

Compatible KOMATSU models

The strongest public fitment evidence available for this number is somewhat mixed, but it is still useful when presented carefully.

A marketplace-style catalog result for the exact OEM number lists the compatible grader families as GD505A, GD511A, GD521A, GD525A, GD605A, GD611A, and GD621A, and it also notes compatibility with wheel loaders in a broader equipment grouping. Separate UrParts pages for GD611, GD625, and GD661 all include 423-15-13250 in their grader-parts listings. Another seller names the part specifically as COUPLING GD-661. 3GEN’s own page says the part is designed for multiple Komatsu grader models, particularly in the GD series, though it does not provide a hard exact list.

Publicly supported model context

The most defensible model list based on the public sources is:

• Komatsu GD505A
• Komatsu GD511A
• Komatsu GD521A
• Komatsu GD525A
• Komatsu GD605A
• Komatsu GD611A
• Komatsu GD621A
• Komatsu GD625
• Komatsu GD661

This list is built from multiple public seller and catalog references, not from a single official factory fitment sheet, so the safest commercial wording is that these are publicly linked grader families rather than absolutely universal fitments across every serial range.

Because drivetrain components are often serial-sensitive, final compatibility for the 4231513250, 423-15-13250 YOKE KOMATSU should still be confirmed by machine model and serial number before order placement. That is especially important on older graders, rebuilt drivetrains, or fleets with mixed repair history.

Technical details and specifications

Official product number formats

This part is publicly listed and searched in both of the following formats:

4231513250
423-15-13250

Public product naming

Open sources use several names for the same number:

• Yoke Komatsu
• Coupling Komatsu Grader
• Coupling Complete

Product category

The strongest consistent category is:

• Transmission & Drive Components / transmission and torque parts

Weight in KG

Public sources do not agree fully on weight:

• 3GEN Export lists approximately 2.650 kg
• 3GEN lists 2.82 kg

The safest practical website figure is:

Approximate weight: 2.65–2.82 kg
For quoting and cataloging, 2.65 kg is the strongest exact number tied to the exact 3GEN product page, while 2.82 kg is a useful cross-check from another seller.

Material

3GEN’s public page describes the part as made from high-grade alloy steel. The uploaded images are consistent with a forged or heavily machined steel component intended for torque transfer. Since that claim comes from a seller page rather than a factory metallurgy sheet, it is best presented as seller-specified material information.

Mechanical purpose

The best public description of purpose is 3GEN’s statement that the part connects the drive system for smooth power transmission. Given the splined bore and bolted face in the uploaded images, that description is mechanically plausible.

Why buyers search this part in different ways

This is a classic industrial cross-reference part. A purchasing team might search 4231513250 from ERP software. A mechanic might search 423-15-13250 from a printed manual. A reseller might search Komatsu yoke, Komatsu coupling, or coupling complete after seeing the part in a teardown. Public web results already show all of these patterns in action.

That means a strong product page should capture the exact number in both formats while also using supporting phrases like:

• Komatsu grader drivetrain yoke
• Komatsu grader coupling
• transmission drive coupling component
• splined power-transfer yoke

This gives better reach for Google, internal site search, and AI-driven search systems without forcing the exact same phrase into every paragraph.

Why this part is commercially valuable

A compact drive-interface component can hold up an entire transmission repair if it is missing, cracked, or incorrectly matched. That is why the 4231513250, 423-15-13250 YOKE KOMATSU is commercially valuable despite its modest size. It is not a consumable bolt or a generic sleeve. It is a precision fitment piece in the drivetrain.

For workshops, that means this part matters during rebuilds and replacement work where shaft engagement and bolted alignment have to be correct. For fleet owners, it means a relatively small component can protect much more expensive assemblies around it. For exporters and dealers, it means the part has solid search demand because it is tied to real repair events and identifiable by a precise OEM number.

The public listing pattern supports that commercial importance. Multiple sellers keep it in transmission-driven categories, and the exact number appears across several grader model references instead of only one niche machine.

3GEN Export supply advantage

At 3GEN Export, we supply the 4231513250, 423-15-13250 YOKE KOMATSU as an OEM supplier for heavy machinery spare parts, and we deliver worldwide in 5 working days. The public 3GEN product page places this part in the transmission-and-drive category and shows stock availability, which fits the real-world urgency buyers usually have when sourcing drivetrain components for graders.

Final summary

The 4231513250, 423-15-13250 YOKE KOMATSU is best understood as a Komatsu grader transmission-and-drive interface component with a splined internal bore and bolted mounting face, used for torque transfer inside the drivetrain. Public sources agree on the number and the grader drivetrain context, but they do not use one single name: 3GEN calls it Yoke, while other sellers and catalog-style listings call it Coupling or Coupling Complete. The safest technical interpretation is that it is a yoke-type coupling component. Publicly linked model families include GD505A, GD511A, GD521A, GD525A, GD605A, GD611A, GD621A, GD625, and GD661, with final fitment still best confirmed by serial number. Public weight figures cluster around 2.65–2.82 kg.

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.