23B-15-12750 PISTON LOW KOMATSU

The 23B-15-12750 PISTON LOW KOMATSU is a transmission-side grader component used in the low and high clutch section of several Komatsu motor grader platforms. Public parts catalogs list this item under both 23B-15-12750 and 23B1512750, and they place it in the transmission clutch assembly rather than in the engine or hydraulic cylinder group. Catalog references also connect it to multiple Komatsu grader families including GD605A-5, GD605A-5S, GD611A-1, GD621A-1, GD621R-1, GD623A-1, GD625A-1, GD661A-1, and GD663A-2.

From the uploaded photos, this part presents as a precision-machined annular piston body with a circular inner opening, a controlled outer sealing surface, and evenly spaced mounting ears. That visual profile matches the kind of clutch piston used inside a transmission housing where oil pressure acts on the piston to compress a disc-and-plate pack. Public assembly breakdowns reinforce that interpretation because 23B-15-12750 appears beside the low housing, seal rings, discs, plates, springs, pins, and related clutch hardware in the transmission group.

For a product page, that matters. Buyers searching 23B-15-12750 PISTON LOW KOMATSU are usually not looking for a generic metal ring. They are looking for a model-specific transmission clutch piston that helps the grader engage the proper range inside the drivetrain. That is why the best listing strategy is not to describe this part in vague terms. It should be presented as a grader transmission clutch piston, identified by both 23B-15-12750 and 23B1512750, and positioned for the low-clutch area of the Komatsu transmission assembly.

What the 23B-15-12750 PISTON LOW KOMATSU does

In practical workshop language, the 23B-15-12750 PISTON LOW KOMATSU is the pressure-actuated member that helps apply force to a clutch pack inside the transmission. In the low-clutch assembly, the piston works with sealing rings and internal clutch elements so that hydraulic pressure can move the piston and clamp the disc-and-plate stack. That is the core reason this part is important: it converts hydraulic pressure into mechanical engagement inside the transmission. Its catalog placement next to seal rings, discs, plates, and springs strongly supports this function.

When a grader operator needs stable pulling force, clean gear engagement, and predictable drivetrain response, components like the 23B-15-12750 PISTON LOW KOMATSU are part of the hidden system making that happen. A worn piston surface, damaged sealing area, distortion, or improper fit can reduce clutch apply force or create inconsistent transmission behavior. In real operating conditions, that can show up as delayed response, weak engagement under load, internal leakage, heat buildup, or premature wear in the surrounding friction components. This is an engineering inference based on the part’s cataloged position in the clutch pack and the standard operating principle of pressure-applied transmission pistons.

Because of that role, buyers should not evaluate 23B-15-12750 PISTON LOW KOMATSU as if it were just a flat machined spacer. The sealing lands, face accuracy, concentricity, and overall fit are directly tied to transmission performance. A part that looks simple can still be mission-critical once it sits inside a closed powertrain assembly. On graders working in quarry roads, mine haul support, road formation, or fine leveling operations, downtime caused by transmission disassembly is expensive. Choosing the correct 23B-15-12750 PISTON LOW KOMATSU helps reduce that risk.

Why the uploaded images matter

The photos give useful clues about the physical character of the 23B-15-12750 PISTON LOW KOMATSU. The part appears to be an annular metal piston with a broad circular body, stepped working surfaces, and multiple tabs with bolt holes or locating holes around the perimeter. This type of geometry makes sense for a clutch piston that must sit accurately inside a mating housing and operate with sealing control rather than rotational gear mesh. It does not resemble a gear, bearing race, or loose washer-type part. Instead, it looks like a transmission apply component built for controlled axial movement and load distribution.

Another important detail is the overall machining quality visible in the images. The faces appear smooth and uniform, while the edges and sealing paths appear intentionally finished. That matters because a transmission piston must move consistently and seal correctly. Surface condition and geometry are not cosmetic here; they are part of functional performance. Even when the outside shape looks uncomplicated, the working tolerances of parts like 23B-15-12750 PISTON LOW KOMATSU are what separate a reliable transmission rebuild from one that has to be opened again.

The images also help explain why many buyers search the part number instead of the part name. A phrase like “low piston” can be too broad. But 23B-15-12750 PISTON LOW KOMATSU and 23B1512750 take the buyer directly to the exact component needed for the transmission clutch section. For SEO, that means the product page should deliberately include both number styles and natural contextual phrases such as Komatsu grader transmission piston, low clutch piston, and transmission clutch apply piston without turning the copy into keyword spam.

Confirmed Komatsu model applications

Public catalog data consistently associates 23B-15-12750 PISTON LOW KOMATSU with Komatsu motor graders, not excavators or wheel loaders. The strongest fitment evidence points to the following models: GD605A-5, GD605A-5S, GD611A-1, GD621A-1, GD621R-1, GD623A-1, GD625A-1, GD661A-1, and GD663A-2. Some listings also provide serial context for part-group usage, including GD605A-5 S/N 1001-UP, GD605A-5S S/N 4001-UP, GD611A-1 S/N 10001-UP, GD621A-1 S/N 10001-UP, GD621R-1 S/N 10001-UP, GD623A-1 S/N 30001-UP, GD625A-1 S/N 50001-UP, GD625A-1 S/N 60001-UP for North America, and GD661A-1 S/N 10001-UP.

For your product page, I would present the fitment section like this:

Compatible Komatsu models

• GD605A-5

• GD605A-5S

• GD611A-1

• GD621A-1

• GD621R-1

• GD623A-1

• GD625A-1

• GD661A-1

• GD663A-2

Serial-related catalog references commonly seen

• GD605A-5 S/N 1001-UP

• GD605A-5S S/N 4001-UP

• GD611A-1 S/N 10001-UP

• GD621A-1 S/N 10001-UP

• GD621R-1 S/N 10001-UP

• GD623A-1 S/N 30001-UP

• GD625A-1 S/N 50001-UP

• GD625A-1 S/N 60001-UP (North America)

• GD661A-1 S/N 10001-UP

One public procurement-style listing also mentions this part number for GD655A-5, but I would not treat that as my primary fitment line because I could not confirm that model from the stronger catalog references above. For a serious parts website, it is better to separate confirmed catalog applications from possible market references.

Technical details and product-page specifications

Below is the safest specification-style summary based on the catalog evidence and the uploaded photos.

Part identification

Part number: 23B-15-12750
Alternate format: 23B1512750
Part name in public catalogs: PISTON or PISTON, LOW
Machine family: Komatsu motor graders
Assembly area: transmission, low and high clutch group / low clutch section

Functional role

The 23B-15-12750 PISTON LOW KOMATSU is used inside the grader transmission clutch assembly to apply force to the low clutch pack through hydraulic pressure. It operates in combination with housing components, sealing rings, discs, plates, springs, and related transmission internals.

Construction notes based on the images

• Machined circular metal body

• Annular piston-style shape

• Perimeter mounting or locating ears

• Sealing/contact surfaces with stepped geometry

• Built for housed transmission use rather than external open-air mounting

Approximate weight

Weight information is not perfectly consistent across public seller listings. One source lists the part at 3.25 kg, while another lists 3.6 kg gross. For a clean product page, I would write this as approximately 3.25-3.60 kg unless you verify the packed weight in-house. If you want one single listing value, 3.25 kg is the more specific exact figure I found on an opened catalog page.

SEO-focused commercial description

If you are selling 23B-15-12750 PISTON LOW KOMATSU, the strongest commercial angle is not only that it is the correct transmission clutch component, but that buyers can source it from a specialist supplier that understands grader powertrain parts. 3GEN Export positions this product for customers who need an OEM-supplier alternative for Komatsu grader transmission repair, rebuild, and replacement work, with worldwide shipping in 5 working days. That positioning works especially well for fleet owners, rebuild shops, parts resellers, and contractors handling remote-site service where a delayed transmission part can stop an entire machine.

A strong product page should speak directly to that buyer. The buyer is often searching from a workshop floor with a dismantled transmission, a parts manual open, and the need to match 23B-15-12750 or 23B1512750 without mistakes. They need clarity, confidence, and fast dispatch. That is why the copy should keep repeating the exact searchable identifiers naturally while also explaining the real-world role of the part. The page should tell them this is a low-clutch transmission piston for Komatsu graders, it sits within the low/high clutch assembly, and it is supplied by 3GEN Export as an OEM supplier with fast global delivery.

Another reason this part deserves detailed copy is that transmission internals are often purchased by number, not by visual recognition. A buyer may see the uploaded images and still want written confirmation that the component belongs in the low clutch section and fits the proper grader family. Good SEO copy bridges that gap. It helps search engines understand the application, and it helps human buyers decide quickly. In that sense, the best product page for 23B-15-12750 PISTON LOW KOMATSU is both a search asset and a technical reassurance asset.

Recommended website-ready sales copy

Why buy 23B-15-12750 PISTON LOW KOMATSU from 3GEN Export

The 23B-15-12750 PISTON LOW KOMATSU is a model-specific transmission clutch component designed for Komatsu motor grader applications in the low-clutch section of the transmission assembly. Public parts references place this part in the low and high clutch group together with seal rings, friction discs, plates, springs, and related hardware, confirming its role as a pressure-applied clutch piston inside the grader drivetrain.

At 3GEN Export, we supply 23B-15-12750 PISTON LOW KOMATSU as an OEM-supplier solution for customers who need dependable fit, clear part-number identification, and fast international dispatch. Whether you search 23B-15-12750, 23B1512750, Komatsu low clutch piston, or Komatsu grader transmission piston, this part is intended for buyers working on compatible GD-series graders and looking for a reliable transmission rebuild component.

The 23B-15-12750 PISTON LOW KOMATSU is commonly linked with Komatsu GD605A-5, GD605A-5S, GD611A-1, GD621A-1, GD621R-1, GD623A-1, GD625A-1, GD661A-1, and GD663A-2 models. Before ordering, the best practice is to confirm the machine model and serial range against your parts book, especially on regional or serial-specific machines.

Ideal for

• Transmission rebuilds

• Low clutch repairs

• Powertrain maintenance planning

• Fleet service inventories

• International spare-parts sourcing

Buying note

Because public listings show slight variation in published weight, I recommend listing the product weight as approximately 3.44 kg and confirming your exact shipping weight from warehouse measurement before publishing freight-sensitive pages.

Final product summary

The 23B-15-12750 PISTON LOW KOMATSU is a transmission clutch piston used in the low-clutch section of selected Komatsu motor graders. It is cataloged under both 23B-15-12750 and 23B1512750, and the strongest public references place it in the low/high clutch transmission group alongside the seal rings, discs, and plates it works with during clutch apply. Confirmed model associations include GD605A-5, GD605A-5S, GD611A-1, GD621A-1, GD621R-1, GD623A-1, GD625A-1, GD661A-1, and GD663A-2. For a clean commercial listing, describe it as a Komatsu grader transmission low clutch piston supplied by 3GEN Export as an OEM supplier with worldwide delivery in 5 working days.