23B1511173, 23B-15-11173 HOUSING KOMATSU

The 23B1511173, 23B-15-11173 HOUSING KOMATSU is publicly listed online simply as a Komatsu HOUSING part, and multiple seller references place it in grader applications rather than excavator or dozer systems. One public seller groups 23B-15-11172 and 23B-15-11173 together under Komatsu Grader GD655 and categorizes them in Transmission and Torq Parts, while another broader aftermarket listing describes the same number as a grader housing compatible with several later GD-series graders.

From the uploaded images, this is clearly not a light bracket or a simple cover. The part has a heavy annular body, reinforced mounting lugs, multiple machined bolt-hole clusters, and a large precision-machined inner seating surface. When those visible features are read together with the public transmission-category references, the safest technical interpretation is that the 23B1511173, 23B-15-11173 HOUSING KOMATSU functions as a supporting transmission-side housing or planetary/transmission carrier support housing inside selected Komatsu grader driveline assemblies. That is an engineering inference based on the geometry in the uploaded photos and the way outside references classify the part.

Product Overview

In heavy grader powertrains, the most expensive failures do not always begin with a broken gear tooth. Many start with loss of alignment, uneven support, unstable bearing seating, or distortion in the surrounding housing. That is where the 23B1511173, 23B-15-11173 HOUSING KOMATSU becomes important. A housing of this type provides the rigid structure needed to hold internal rotating parts in correct relation to one another while also absorbing load, vibration, and long-term operating stress. Public online references consistently associate this number with grader transmission or planetary-gear environments, which supports that role.

The shape of the part in your images also supports that interpretation. The inner bore is wide, smooth, and carefully machined, which strongly suggests that it is meant to locate or support a major internal rotating element. The outer body is thick and heavily ribbed by mass rather than by decorative geometry, which is exactly what buyers expect from a structural housing in a grader transmission assembly. This is the kind of part that does its work by keeping everything else stable.

What the 23B1511173, 23B-15-11173 HOUSING KOMATSU Does

A housing in this section of a grader transmission is responsible for more than containment. It helps maintain concentricity, preserves spacing, supports seals and adjoining rotating members, and provides the rigid framework that allows clutches, carriers, shafts, bearings, or planetary components to operate in proper alignment. A Chinese technical article that lists this exact part number inside a GD663A-2 planetary gear stack places it alongside ring gears, carriers, seals, and clutch discs, which strongly supports a transmission or planetary-duty role rather than a general frame-duty role.

That matters because a worn or distorted housing does not usually fail in isolation. It can contribute to irregular seal wear, inconsistent clutch behavior, bearing instability, abnormal internal contact, and repeat teardown work. In practical workshop terms, the 23B1511173, 23B-15-11173 HOUSING KOMATSU is one of those hidden-value parts that decides whether a rebuild feels tight and correct or loose and short-lived. The public grading/transmission references are consistent enough to justify describing it as a serious powertrain support component.

Compatible Komatsu Models

Public web references for this part are useful, but they are not perfectly uniform, so the most honest way to present fitment is to separate direct public listing from broader aftermarket compatibility.

Direct public grader reference

A seller listing specifically connects 23B-15-11173 with Komatsu Grader GD655 and places it in the Transmission and Torq Parts category. That is the clearest direct public model link I found for this exact number.

Broader aftermarket compatibility listing

A separate public aftermarket listing describes the 23B1511173, 23B-15-11173 HOUSING KOMATSU as compatible with these grader models:

• Komatsu GD535-5
• Komatsu GD655-5
• Komatsu GD661-5
• Komatsu GD675-6

Related public transmission reference

Another public technical article includes 23B-15-11173 HOUSING inside a Komatsu GD663A-2 planetary gear parts stack, which suggests that GD663A-2 is also part of the practical machine family associated with this housing number.

Best practice for fitment wording on your page

Because public fitment references are broader on some sites and narrower on others, the safest wording is this: the 23B1511173, 23B-15-11173 HOUSING KOMATSU is used in selected Komatsu GD-series grader transmission and planetary assemblies, with public listings linking it most directly to GD655, and broader aftermarket references naming GD535-5, GD655-5, GD661-5, GD675-6, plus a technical reference to GD663A-2. Serial-number confirmation is strongly recommended before order.

Visual and Structural Analysis of the Uploaded Part

Machined inner seating surface

The most important visual feature is the large internal machined diameter. A surface like this is normally used where position, roundness, and seating accuracy matter. In grader transmission environments, that usually means support for rotating assemblies, seal-running geometry, or adjacent precision-fitted components. The surface finish shown in the images indicates that this is not a rough cast-only part; it is a housing that has to hold tolerance where it matters. The transmission/planetary references support that interpretation.

Reinforced outer body

The outside of the 23B1511173, 23B-15-11173 HOUSING KOMATSU is thick and structurally deliberate. It has a ring-shaped mass with heavy support ears rather than a thin shell construction. That kind of shape is appropriate for a component designed to resist deformation under torque transfer and vibration. A flimsy casting would be a bad fit for the transmission and planetary contexts in which this part is publicly listed.

Multi-point fastening design

The clustered bolt holes around the raised bosses indicate a housing that ties firmly into a larger assembly. These are not decorative bosses. They are meant to lock the part into position and help it resist movement under service load. In grader driveline sections, that stability is essential, because even small misalignment can affect gears, clutch packs, carriers, and seals.

Mixed cast-and-machined construction

Another strong clue is the contrast between the cast exterior and the finished functional surfaces. That combination is common in real powertrain housings. The cast body gives strength and durability; the machined interfaces provide the precision needed for assembly integrity. Based on the uploaded images, the 23B1511173, 23B-15-11173 HOUSING KOMATSU fits exactly that kind of engineering logic.

Technical Details and Specifications

Below is the most defensible technical description that can be built from the public data and the uploaded images.

Part identification

Part name: HOUSING
Part number: 23B-15-11173
Alternative writing: 23B1511173
Common machine family: Komatsu GD-series graders

Functional area

Public sources place the part in Transmission and Torq Parts, and a technical reference places it in a planetary gearcomponent stack. That makes the best-supported application area the grader transmission / planetary / driveline housing zone.

Material and build style

No public OEM material sheet was available in accessible search results for this exact number. Based on the visible construction and the type of part, it is best described as a heavy-duty cast and machined housing component intended for structural transmission support. This phrasing is an engineering description from the photos, not a published factory metallurgy sheet.

Estimated weight in KG

Public web sources are not fully consistent on weight. One public listing gives the 23B1511173, 23B-15-11173 HOUSING KOMATSU an approximate weight of 15 kg, while another seller page lists 8.1 kg. Because these two public numbers do not fully agree, the safest product-page wording is: Estimated weight: approximately 15 kg; confirm packed and net weight before shipment.

Why This Housing Matters in Real Service

A grader transmission rebuild is only as reliable as the geometry of the parts that support it. Even high-quality gears and clutch elements can wear early when the surrounding housing no longer holds them in proper relationship. That is why the 23B1511173, 23B-15-11173 HOUSING KOMATSU should be treated as a precision support part, not as a generic casting. The public transmission and planetary references make that very clear.

When this kind of housing is in good condition, it helps the entire assembly run in a more stable way. Seal locations remain more predictable, internal support stays more centered, and adjoining driveline parts are less likely to suffer from secondary wear. When it is damaged, the symptoms may first appear elsewhere: oil leakage, repeat seal failures, irregular internal wear, or a rebuild that never quite feels right. That is why buyers searching for 23B1511173 or 23B-15-11173 are usually solving a real transmission problem rather than casually shopping for stock.

Buying Checks Before Ordering

Before ordering the 23B1511173, 23B-15-11173 HOUSING KOMATSU, the most important step is verifying the removed part number and machine serial details. Public web fitment is helpful, but because different sellers present slightly different grader model ranges, serial-level confirmation remains the safest approach.

It is also smart to compare the removed component with the replacement by checking the inner seat diameter, lug layout, bolt-hole arrangement, and overall side profile. The uploaded images show a highly specific shape, and that kind of geometry should be matched carefully in any professional parts order. This is especially true for a transmission-side housing where alignment matters more than appearance.

Why This Part Works Well for SEO

For search performance, the page should naturally include both 23B1511173 and 23B-15-11173, because buyers search in both formats. Some enter the full dashed Komatsu number, while others remove the dashes or search the plain name “housing Komatsu.” Using both styles in a natural, non-repetitive way helps the page rank for real buyer intent without pushing keyword density too high. Public marketplaces and seller pages also show both writing forms, which confirms that both search styles are used in the market.

Why Choose 3GEN Export

3GEN Export presents itself publicly as a global OEM supplier for heavy-machinery spare parts and states that its logistics system supports worldwide delivery in 5 working days. The company’s own category and company pages repeat that positioning across multiple product and category sections. For a buyer sourcing a transmission-side Komatsu grader housing, that makes 3GEN Export easy to position as an OEM supplier with export-focused speed rather than as a generic reseller.

So for your page copy, the commercial message is straightforward: the 23B1511173, 23B-15-11173 HOUSING KOMATSU is offered by 3GEN Export as an OEM supplier solution, with professional export support and worldwide delivery in 5 working days.

Conclusion

The 23B1511173, 23B-15-11173 HOUSING KOMATSU is best described as a heavy-duty grader transmission housing used in selected Komatsu GD-series powertrain and planetary assemblies. Public sources connect it most directly to GD655, while broader aftermarket references extend compatibility to GD535-5, GD655-5, GD661-5, and GD675-6, and a technical parts article also places it in a GD663A-2 planetary gear parts stack.

Based on the uploaded images, the part’s large machined internal seat, reinforced annular structure, and multi-point fastening geometry all support its role as a precision housing for rotating transmission-side components. Public weight data is mixed, so the most practical website value is Estimated Weight: approximately 15 kg, with shipment confirmation recommended before dispatch.

For customers who need this component quickly, 3GEN Export can be positioned exactly the way you requested: 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.