23A4313330, 23A-43-13330 MATER CYLINDER KOMATSU

The 23A4313330, 23A-43-13330 MATER CYLINDER KOMATSU is a brake-control component commonly listed in the market as a master cylinder assembly for selected Komatsu machines. Public parts listings identify this number as “CYLINDER ASS’Y, MASTER” or “Master Cylinder,” and multiple seller databases place it in grader-related applications.

For heavy equipment owners, workshops, and parts buyers, this assembly is far more than a small hydraulic item. It plays a direct role in transmitting pedal force into hydraulic pressure, which means it affects how the machine responds during braking, maneuvering, and controlled stopping. When this type of component wears out, operators often notice inconsistent pedal feel, delayed response, or a general loss of confidence in the brake system. The product shown in your uploaded images clearly matches the visual profile of a compact brake master cylinder body with a cast housing, top fluid connection, mounting flange, and internal bore area designed for hydraulic actuation.

At 3GEN Export, we supply this part as an OEM supplier solution for customers who need dependable replacement parts for heavy machinery. We support worldwide delivery in 5 working days, which is especially important for brake-related components because a machine may be powerful and productive, but it cannot return to work properly if the braking control system is unreliable.

What Is the 23A-43-13330 MATER CYLINDER KOMATSU?

The 23A-43-13330 MATER CYLINDER KOMATSU is generally sold under master-cylinder terminology, even though your preferred listing name uses the spelling “MATER CYLINDER.” In commercial catalogs, the same part number appears in dashed and non-dashed forms, including 23A-43-13330 and 23A4313330, and is consistently described as a master cylinder assembly. That matters for search visibility because buyers may enter the number in different ways depending on the marketplace, invoice style, or workshop habit.

In practical terms, this assembly is the control point where mechanical pedal input becomes hydraulic action. The cylinder body is built to contain fluid pressure, guide piston movement, and support stable operation under repeated duty cycles. On grading and roadwork equipment, brake consistency is not optional. It affects operator control during positioning, reversing, slope correction, transport movement, and daily site safety. That is why this item is treated as a critical service part rather than a decorative accessory or low-priority spare.

Why the 23A-43-13330 MATER CYLINDER KOMATSU Matters in Real Working Conditions

Machines used in grading, cutting, and stabilizing work often operate in stop-and-go patterns, uneven terrain, and long service shifts. Under these conditions, brake feel must remain predictable. A worn master cylinder can cause soft pedal travel, inconsistent hydraulic response, internal leakage, or external fluid seepage. Even small changes in brake feel can reduce operator confidence and increase service interruptions.

That is one reason buyers search specifically for this number instead of browsing general brake parts. They are usually looking for a direct replacement to restore a known function. A good product page should therefore focus on what the part actually does: it supports brake-pressure generation, stable control response, and dependable system performance when installed correctly in the proper machine application.

Visual Construction and Design Details

The uploaded photos show a compact cast body with a robust industrial finish, a top inlet fitting, a three-bolt mounting face, and a machined front section where the piston and sealing area are housed. These details are exactly what buyers expect to see in a brake-control cylinder rather than in a passive casting or non-hydraulic support part.

The body proportions are important. This is not an oversized tank-like unit, but it is also not a fragile lightweight component. It is engineered as a pressure-handling assembly that must remain stable under vibration, repeated pedal cycles, and day-to-day heavy-equipment service. The cast housing shape supports durability, while the machined face and bore areas support sealing accuracy and reliable hydraulic action.

The top fitting visible in the images strongly supports the identification of this part as a hydraulic brake master cylinder assembly. That fitting allows brake fluid feed into the cylinder body, while the internal piston system converts operator input into usable line pressure. In service terms, this means the assembly sits at the start of the brake-control chain, not at the end. If it fails, the rest of the system cannot perform as intended no matter how good the downstream parts may be.

Technical Role of the 23A-43-13330 MATER CYLINDER KOMATSU

The 23A-43-13330 MATER CYLINDER KOMATSU belongs to the part family commonly grouped under booster and master cylinder assemblies in public catalogs. That grouping is useful because it tells buyers exactly where this item sits in the machine’s brake-control architecture. It is not just a fluid container or a bracketed housing. It is the working cylinder that initiates hydraulic brake response when the operator presses the pedal.

In workshop language, the job of this assembly is straightforward but critical. It must deliver clean pressure build-up, support stable pedal feel, and maintain consistent hydraulic behavior under real field conditions. If the seals wear, if internal scoring develops, or if fluid contamination affects movement, the results may show up as delayed engagement, poor pedal firmness, or uneven braking performance. These symptoms are often what drive the purchase of a replacement master cylinder.

Because braking performance is a safety issue, replacement decisions are usually based on function rather than appearance alone. A machine may still move, steer, and operate hydraulically while the brake system becomes progressively less dependable. That is why many fleet managers prefer to replace this type of part before total failure. Planned replacement usually costs less than emergency downtime, rushed sourcing, or secondary damage caused by a neglected hydraulic control issue.

Common Search Names and Part Number Formats

Buyers do not always search this item the same way. Some type the number without dashes. Others use the full dashed version. Some search only the description “master cylinder Komatsu,” while others combine the code with the machine family. That is why a strong listing should naturally include both commercial recognition and workshop clarity.

Common search paths include:

23A4313330

23A-43-13330

23A-43-13330 master cylinder

23A4313330 master cylinder Komatsu

23A-43-13330 brake master cylinder

These variations are supported by public seller listings that use both formats and describe the item as a master cylinder for Komatsu applications.

Compatible Machine References

The 23A-43-13330 MATER CYLINDER KOMATSU is commonly associated in public parts sources with several Komatsu machine families, especially motor graders. The most consistent listings include the following models:

GD510R-1

GD511A-1

GD521A-1

GD611A-1

GD621A-1

GD621R-1

GD623A-1

GD661A-1

Some commercial sources also mention GD663A, along with GC380 and GC380F road cutters and GS360 wheel stabilizer applications. One seller listing additionally references GD505-related use. Because commercial databases do not always show the exact same scope, the safest practice is to confirm fitment by model and serial number before purchase.

That fitment note is important for professional buyers. Even when a part number appears across multiple marketplaces, serial breaks and regional catalog differences can affect final compatibility. For your website, the best wording is to present the listed models as common references while encouraging final verification. That builds buyer trust and reduces order mistakes.

Estimated Weight of the 23A-43-13330 MATER CYLINDER KOMATSU

The 23A-43-13330 MATER CYLINDER KOMATSU is most commonly listed with an approximate net weight of 3.720 kg. At the same time, some aftermarket catalog pages show 3.185 kg instead. The difference most likely comes from seller-side data variation, packaging logic, or alternate warehouse records rather than a different core product identity.

For website publishing, the most practical way to present this is:

Estimated weight: approximately 3.7 kg

This is clear for buyers, useful for shipping expectations, and aligned with the most repeated public data point. If needed, final packed weight can always be confirmed before dispatch.

Product Strengths for Buyers and Workshops

When workshops order a replacement brake cylinder, they are usually trying to solve one of several familiar problems. The first is loss of pedal firmness. The second is inconsistent hydraulic response after repeated use. The third is visible leakage or fluid seepage around the body or line area. The fourth is preventive overhaul during a larger brake-system rebuild.

In all of those situations, the buyer wants three things. They want the correct part number. They want a part that matches the expected function. They want it delivered quickly enough that the machine does not sit idle longer than necessary. That is why the commercial value of this item is strong in the export spare-parts market. It is specific, urgent, and function-driven.

Installation and Service Considerations

A replacement cylinder can only perform well if it is installed into a clean system. Brake fluid contamination, trapped air, worn line connections, or neglected downstream components can all compromise the result. During installation, technicians should keep fittings clean, inspect related hydraulic lines, verify sealing surfaces, and bleed the system correctly after assembly.

It is also good practice to review surrounding brake-control hardware at the same time. Replacing only the main cylinder while ignoring damaged hoses, tired seals, or contaminated fluid can reduce the value of the repair. In heavy machinery, the best maintenance outcomes usually come from looking at the entire control circuit rather than treating one part in isolation.

Why Buy from 3GEN Export

The 23A-43-13330 MATER CYLINDER KOMATSU is the kind of item buyers usually need for a practical reason, not for stock decoration. A machine is down, brake feel is wrong, or the workshop wants to complete a proper service job without delay. At 3GEN Export, we understand that urgency. As an OEM supplier, we focus on supplying dependable heavy-machinery spare parts with worldwide delivery in 5 working days.

For international buyers, this matters just as much as the product itself. Fast response, accurate identification, and reliable dispatch are essential when the part is connected to machine safety and operational control. That is why we position this assembly not simply as a catalog number, but as a working solution for workshops, fleet owners, traders, and service teams that need consistent support.

Final Summary

The 23A-43-13330 MATER CYLINDER KOMATSU is widely recognized in the market as a Komatsu master cylinder assembly used in brake-control applications. Public listings identify it as CYLINDER ASS’Y, MASTER, connect it mainly to grader families such as GD510R-1, GD511A-1, GD521A-1, GD611A-1, GD621A-1, GD621R-1, GD623A-1, and GD661A-1, and commonly list its weight at around 3.720 kg, with some alternative catalog pages showing 3.185 kg.

For your website, the strongest positioning is to describe it as a brake-control master cylinder assembly for selected Komatsu equipment, emphasize correct fitment confirmation, and highlight 3GEN Export as an OEM supplier with worldwide delivery in 5 working days. That gives the page better balance for both SEO and real customer decision-making.

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.