23S1521140, 23S-15-21140 PLATE KOMATSU

The 23S1521140, 23S-15-21140 PLATE KOMATSU is publicly sold as a Komatsu transmission spare part, and the clearest seller references place it in transmission-related categories such as Transmission, Transmission and Torq Parts, and Power Train / Drive Group. One seller page also titles the same number as “KOMATSU 23S-15-21140 PLATE GD-661,” which gives the strongest directly stated model reference I could verify publicly.

A broader Komatsu grader parts list from 3GEN adds a highly useful clue by describing 23S-15-21140 in Turkish as “2. vites kovan kapağı,” which translates approximately to a second-speed drum or sleeve cover. I cannot confirm that wording from a factory Komatsu catalog page, so I would treat it as a strong marketplace description rather than an official engineering label. Even so, it matches the uploaded images very well and gives the product page much more practical value than the generic word “plate” alone.

From the images, the 23S1521140, 23S-15-21140 PLATE KOMATSU looks like a cover-style transmission plate with a broad annular body, a large central opening, stepped machined faces, and a repeated fastening pattern around the perimeter. It does not look like a clutch disc, a carrier, or a rotating gear. It looks like a structural closing or retaining plate for a transmission drum, sleeve, or clutch-side section. That visual reading is my interpretation from the uploaded images, supported by the seller wording above.

Product Overview

The strongest commercial positioning for the 23S1521140, 23S-15-21140 PLATE KOMATSU is this: a Komatsu grader transmission plate, likely used as a cover or retaining element in a second-speed drum-related section. Public pages repeatedly connect the number with Komatsu grader transmission parts rather than hydraulics, engine parts, or general chassis hardware, which makes the transmission-side identity much more reliable than the bare part name alone.

That distinction matters because “plate” is too broad to help a serious buyer. Heavy equipment includes separator plates, backing plates, steel plates, clutch plates, and cover plates. The visible geometry here is not that of a thin consumable clutch plate. It is a rigid, machined, ring-style structural part. The 3GEN description of the number as a second-speed sleeve or drum cover is therefore consistent with both the product category and the visible design. I am presenting that as a grounded interpretation, not as a quoted Komatsu factory definition.

The 23S1521140, 23S-15-21140 PLATE KOMATSU also deserves a carefully structured page because search behavior for this kind of part is exact and high-intent. Buyers may search the hyphenated format, the compact numeric format, or both together from invoices, warehouse notes, workshop teardown sheets, or old parts lists. Public listings recognize both 23S-15-21140 and 23S1521140, so your page should naturally support both forms.

What This Part Likely Does

Based on the public category placement and the uploaded images, the 23S1521140, 23S-15-21140 PLATE KOMATSU most likely works as a cover, retaining, or seating plate inside a transmission-side drum or sleeve assembly. A part with this shape is typically used to close off a circular section, hold related internal components in position, or provide a machined face against which another component, seal, or ring can sit. The broader 3GEN description is what points most directly toward a second-speed drum-cover interpretation.

In practical workshop terms, a part like this matters more than it first appears. Even though it is not a gear or a shaft, a transmission cover plate can still control flatness, seating accuracy, clamping consistency, and the concentric relationship of the assembly it closes. If that plate is worn, warped, cracked, or incorrectly machined, the problem can spread into seal behavior, internal alignment, and long-term driveline durability. That engineering explanation is a reasonable inference from the documented transmission category and the visible structure of the part.

That is why the 23S1521140, 23S-15-21140 PLATE KOMATSU is not a casual shelf item. Seller pages consistently group it with Komatsu grader transmission and torque parts, which strongly suggests real use during transmission service, gearbox rebuilds, or second-speed / clutch-area inspection work rather than general stock browsing.

Visual Analysis of the Uploaded Images

Ring-shaped structural body

The first thing visible is the heavy annular body. This is not a thin steel friction plate. The section thickness suggests a rigid structural or retaining role. Buyers working on real transmission repairs will immediately recognize that it is meant to hold shape under bolt load, not flex as a consumable disc.

Large central opening

The center bore is wide and cleanly machined. That indicates clearance for a shaft, sleeve, hub, or rotating drum element to pass through the middle while the plate closes or supports the surrounding section.

Broad machined seating faces

Both visible faces show broad, turned surfaces and a stepped inner seat. That is a strong sign that the part must sit true against a mating surface. In transmission assemblies, that kind of flatness and seating control is essential.

Repeated fastening pattern

The perimeter tabs and drilled holes show a repeatable mounting pattern. That makes the 23S1521140, 23S-15-21140 PLATE KOMATSU look exactly like the kind of part that bolts evenly around a circular housing or drum cover area.

Reinforced outer ears

Several attachment zones extend slightly outward rather than forming a perfect circle. That suggests the bolt pattern is driven by assembly requirements, not by aesthetics, which is common in transmission covers and retaining plates.

Compatible KOMATSU Models

The strongest directly stated machine reference I could verify publicly is GD-661, because one seller page explicitly titles the item “KOMATSU 23S-15-21140 PLATE GD-661.” That is the clearest model-level fitment statement visible in accessible public sources.

Other public pages consistently describe the same number more generally as a Komatsu grader transmission part, but they do not expose a clean, catalog-grade multi-model fitment list for this exact number in the accessible snippets I could verify. 3GEN lists it as 23S-15-21140 & 23S1521140 PLATE KOMATSU GRADER under Transmission and Torq Parts, and Ozturk places it under Transmission, while 3GENEXPORT places it in the Drive Group / Power Train context.

For your website, the most honest fitment section is this:

Publicly confirmed model reference

Komatsu GD-661.

Publicly confirmed machine type

Komatsu grader transmission application.

Fitment note

A broader public model list was not clearly verifiable from high-quality catalog snippets for this exact number, so machine serial verification remains the safest final step before order. That is especially important with internal transmission plates, because visually similar ring components can belong to different drum, clutch, or retaining sections.

Weight in KG

I could not verify a strong factory-style or catalog-grade exact weight for the 23S1521140, 23S-15-21140 PLATE KOMATSU. 3GEN lists the part but leaves the weight field as Undefined, which means there is no reliable published weight there to quote as confirmed.

One marketplace-style page gives a weight of 9.16 kg, but that source is weaker than the better category and seller pages, so I would not present 9.16 kg as a fully verified catalog figure. It is best treated as a provisional marketplace estimate only.

For a professional product page, the safest wording is:

Weight: no strong public catalog weight verified; provisional marketplace estimate approximately 9.16 kg. Final packed weight should be confirmed before dispatch.

Technical Details and Practical Specification Summary

The most reliable commercial summary for the 23S1521140, 23S-15-21140 PLATE KOMATSU is built from the public seller categories plus the visible engineering of the uploaded images. Publicly, the part is recognized as a Komatsu plate used in grader transmission-related categories, including Transmission, Transmission and Torq Parts, and Power Train / Drive Group. One seller explicitly links it to GD-661, while the broader 3GEN list describes it as a second-speed sleeve or drum cover.

From the image side, the part can be described as a machined annular transmission plate with a large central opening, broad seating faces, a stepped inner ring, and a repeated outer fastening pattern. Those are exactly the features a technician wants to compare against the removed workshop part when checking whether the replacement is correct.

Technical details

Product name: 23S1521140, 23S-15-21140 PLATE KOMATSU.

Alternate search forms: 23S1521140, 23S-15-21140, 23S 15 21140.

Part type: Plate.

Public category references: Transmission; Transmission and Torq Parts; Drive Group / Power Train.

Strongest publicly stated model reference: GD-661.

Working interpretation from public seller wording and image geometry: second-speed drum / sleeve cover type transmission plate.

Weight: no strong public catalog value verified; provisional marketplace estimate approximately 9.16 kg.

Why This Part Matters in Real Repairs

Transmission jobs are never just about swapping one part. The real cost lies in teardown time, technician labor, machine downtime, and the risk of reopening the gearbox if one supporting component is wrong. That is exactly why the 23S1521140, 23S-15-21140 PLATE KOMATSU matters more than its simple name suggests. Public sources already place it in grader transmission-related groups, which means it belongs to a part of the machine where geometric accuracy and mounting integrity can influence much more than one line item in a parts list.

In real grader service, a plate like this may control how evenly an assembly closes, how accurately a drum or sleeve section is retained, and how reliably surrounding components stay seated during operation. If the part is damaged, uneven, or incorrect, the problem can appear later as misalignment, poor fit, uneven wear, or a repair that does not stay solved. That is why experienced buyers tend to treat ring-shaped transmission plates as functional drivetrain parts rather than simple hardware.

The 23S1521140, 23S-15-21140 PLATE KOMATSU is especially relevant because the public wording points toward a second-speed drum-cover style function. That suggests it belongs to a precise internal section where flatness and bolt-pattern accuracy matter directly to the success of the rebuild. I am presenting that as a strong market-based interpretation, supported by the source wording and the visible design.

Buying Guidance Before Ordering

First, match both number formats. Buyers search 23S-15-21140 and 23S1521140 in different systems, and public listings use both. Supporting both naturally on the page improves search reach and helps prevent confusion during procurement.

Second, confirm the machine type and section. Public sources clearly place the part in grader transmission-related categories, and one seller explicitly links it to GD-661. If the machine is not a Komatsu grader or the repair is not in a transmission-side assembly, the buyer should stop and verify before ordering.

Third, compare visually. The uploaded images make it easy to check the outer ear layout, hole pattern, center bore, and face geometry against the removed component on the bench.

Fourth, verify by serial number whenever possible. Public sources for this number are good on category and general use, but not rich on a multi-model factory-style fitment list, so serial confirmation remains the safest final step.

Why Buy from 3GEN Export

At 3GEN Export, we supply the 23S1521140, 23S-15-21140 PLATE KOMATSU as an OEM supplier for buyers who need accurate identification, export-ready support, and fast logistics. We know these parts are usually ordered when the machine is already down and the workshop is already waiting.

That is why we focus on practical clarity, not vague catalog language. Buyers need to know what the part is, what the public evidence actually supports, what the images suggest, and what still needs serial confirmation. We support that process with worldwide delivery in 5 working days.

For distributors, repair shops, fleet owners, and machinery resellers, that means less uncertainty and a faster path from diagnosis to installation.

Final Summary

The 23S1521140, 23S-15-21140 PLATE KOMATSU is best understood as a Komatsu grader transmission plate, very likely a cover-style or retaining plate associated with a second-speed drum or sleeve section. Public seller pages place it in Transmission, Transmission and Torq Parts, and Drive Group / Power Train categories, while one seller page explicitly references GD-661. A broader 3GEN parts list describes the same number as 2nd gear hub sleeve cover, which strongly supports the second-speed drum-cover interpretation.

From the uploaded images, the part clearly presents as a heavy ring-shaped transmission plate with a broad machined face, stepped inner seat, and multi-hole fastening pattern. For a product page that needs to rank, inform, and convert, the strongest positioning is straightforward: this is a Komatsu grader transmission plate supplied by 3GEN Export 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.