6138813112, 6138-81-3112 AIR COMPRESSOR ASSY KOMATSU

Heavy-Duty Engine Air Compressor for Komatsu S6D110 Applications

The 6138813112, 6138-81-3112 AIR COMPRESSOR ASSY KOMATSU is a Komatsu engine-mounted air compressor assembly publicly identified as AIR COMPRESSOR ASS’Y. Multiple seller and catalog sources tie this part number to the S6D110 / S6D110-1 engine family, and several listings specifically connect it with WA420-1 applications.

For heavy machinery buyers, this is not a generic compressor. It is a Komatsu-specific air compressor assembly used in engine and pneumatic support systems, where correct fitment, stable pressure generation, and reliable mounting matter. Public listings place the part in engine parts, compressor, or fuel injection pump and piping related categories, confirming its role as a functional engine-side compressor component.

At 3GEN Export, we present 6138813112, 6138-81-3112 AIR COMPRESSOR ASSY KOMATSU as an OEM supplier solution for professional buyers who need a replacement air compressor for Komatsu machinery. We deliver all over the world in 5 working days, helping workshops, resellers, contractors, and fleet owners reduce downtime when engine compressor parts need urgent replacement.

What Is 6138813112, 6138-81-3112 AIR COMPRESSOR ASSY KOMATSU?

The clearest public identification for this product is simple: 6138-81-3112 AIR COMPRESSOR ASS’Y. 3GEN catalog entry lists the exact name as AIR COMPRESSOR ASS’Y,(SEE FIG.0711), while commercial sellers describe it as 6138-81-3112 Air Compressor Ass’y or 6138-81-3112 Air Compressor Komatsu.

The strongest engine association available online is S6D110 / S6D110-1. 3GEN describes the part as 6138-81-3112 Air Compressor KOMATSU S6D110 Motor Kompresörü WA420-1, while 3GEN calls it WA420-1 AIR COMPRESSOR ASS’Y – 110 ENGINE. 3GEN Komatsu part list also labels 6138-81-3112 as AIR COMP.110 ENG, which aligns with the same engine family.

That makes the safest product-page positioning this: 6138813112, 6138-81-3112 AIR COMPRESSOR ASSY KOMATSU is a Komatsu air compressor assembly for S6D110 engine applications, especially WA420-1 and similar machine families that use that engine platform.

Why This Komatsu Air Compressor Matters

An air compressor assembly is a working engine-support component. Public seller descriptions for this exact part say it supports air compression for braking systems, pneumatic controls, and auxiliary engine components, which is consistent with the role of an engine-mounted compressor in heavy machinery.

In practical machine use, that means a failing compressor can affect pressure generation, machine readiness, and service reliability. When a compressor becomes weak, noisy, worn, or unable to build proper air pressure, operators and workshops usually do not repair around it for long. They search the exact part number and replace it with the correct unit. This is a practical inference from the part’s function and the way it is sold in engine/compressor categories.

Because this part is sold repeatedly under the same Komatsu number across multiple suppliers, it is clearly an active replacement item in the market rather than an obscure legacy reference. That is useful for buyers who need a searchable, cross-listed, model-specific compressor.

Technical Details of 6138813112, 6138-81-3112 AIR COMPRESSOR ASSY KOMATSU

Part number formats

This product appears publicly in both of these formats:

6138813112
6138-81-3112

Product name

Public sources identify the part as:

AIR COMPRESSOR ASS’Y
AIR COMPRESSOR ASSY
COMPRESSOR, AIR

Engine association

The strongest engine references found online are:

S6D110
S6D110-1
110 engine

Category

Public listings place the product in:

Compressor
Engine Parts / Engine Components
Fuel Injection Pump and Piping

Weight in KG

Public sources show several close but not identical weight values:

Approx. 7.60 kg from a 3GEN Export commercial page.

For a technical product listing, the strongest catalog-style figure is 8.001 kg from . For commercial shipping, some sellers use lower or higher rounded values depending on packaging. The safest clean listing is:

Recommended product weight: 8.0 kg

Packed export weight should still be confirmed before shipment.

Compatible KOMATSU Models for 6138813112, 6138-81-3112 AIR COMPRESSOR ASSY KOMATSU

The clearest directly named machine application I found is:

WA420-1. Berkis explicitly describes the part as 6138-81-3112 Air Compressor KOMATSU S6D110 Motor Kompresörü WA420-1, and 3GEN also labels it WA420-1 AIR COMPRESSOR ASS’Y – 110 ENGINE.

The broader, safest fitment language is therefore:

Strongly referenced applications

WA420-1
Komatsu S6D110 / S6D110-1 engine applications

Important fitment note

Final compatibility should always be confirmed by exact part number, machine model, engine model, and serial number before order. The public web evidence strongly supports WA420-1 and S6D110 family usage, but I did not find a trustworthy factory-style multi-model fitment list broad enough to safely claim additional Komatsu models without overreaching.

Product Design and Working Characteristics

The images show a compact engine-mounted compressor with a cast housing, shaft-driven front section, bolted cover, cooling fins, and port openings. That geometry matches the kind of air compressor assembly used on heavy diesel engine applications. This visual interpretation is mine, while the engine/compressor classification is supported by the cited listings.

A part like this must handle engine vibration, thermal cycling, and continuous operating loads. That is why buyers usually care about exact part number, engine family, and reliable replacement quality more than broad category matching. This is an inference from the component type and the way sellers present it for specific engine applications.

Key Benefits of 6138813112, 6138-81-3112 AIR COMPRESSOR ASSY KOMATSU

Supports engine-side compressed air supply

Seller descriptions for this exact part say it is used for air compression for braking systems, pneumatic controls, and auxiliary engine components.

Built for S6D110 applications

Multiple sources tie the part directly to S6D110 and WA420-1, making it a strong fit for buyers sourcing by engine family.

Useful for compressor replacement work

Because this part is sold as a complete air compressor ass’y, it is suitable for workshops replacing the full unit rather than only chasing internal subcomponents.

Strong search value under both number formats

Public sources consistently use both 6138813112 and 6138-81-3112, so including both improves search visibility for real buyer behavior.

Common Reasons for Replacement

Typical reasons buyers replace this part likely include low air pressure, noisy operation, internal wear, oil seal problems, and general engine-accessory overhaul. One seal-related listing for a Komatsu air compressor explicitly references 6138-81-3112 and shows internal compressor subparts like crankshaft, piston, bearings, and oil seal, which supports the idea that this assembly is a service-wear component over time.

Another common case is machine refurbishment. Since this exact part number is actively sold in the replacement market, it is reasonable to infer that workshops and rebuilders replace it during engine restoration or reliability-focused maintenance work.

Why Buy from 3GEN Export?

At 3GEN Export, we position 6138813112, 6138-81-3112 AIR COMPRESSOR ASSY KOMATSU as an OEM supplier solution for Komatsu engine and pneumatic system maintenance. Our public product page for the exact part markets it for S6D110 engine use and describes it as a premium compressor assembly for heavy-duty machinery.

For your store messaging, the main value proposition remains worldwide delivery in 5 working days, which is especially useful when a machine is waiting on an engine-accessory repair. The public source supports the product identity and engine association; the 5-working-day promise is your requested commercial message.

SEO Strategy for This Product Page

To keep keyword density within the 1% to 2% range, the page should combine the main keyword with related search phrases instead of repeating only the exact same wording too often.

Useful supporting variations include:

6138813112
6138-81-3112
Komatsu air compressor
Komatsu air compressor assy
S6D110 air compressor
WA420-1 compressor
Komatsu 110 engine compressor
Komatsu engine air compressor

Final Summary

The 6138813112, 6138-81-3112 AIR COMPRESSOR ASSY KOMATSU is a Komatsu engine-mounted air compressor assembly most strongly associated with the S6D110 / S6D110-1 engine family and WA420-1 applications. Public sources identify it as AIR COMPRESSOR ASS’Y or COMPRESSOR, AIR, and the strongest catalog-style weight figure available is 8.001 kg, with commercial listings ranging from about 7.4 kg to 7.6 kg and one seller page using a higher packaging-oriented estimate.

For your website, this product should be positioned as a Komatsu S6D110 engine air compressor assembly that supports reliable compressed-air generation, correct fitment, and practical replacement for WA420-1 and related engine applications. At 3GEN Export, we supply this part as an OEM supplier and deliver all over the world in 5 working days.

Weight in KG

Recommended listing weight: 8.0 kg based on the 3GEN catalog entry of 8.001 kg. Packed shipping weight should be confirmed before export shipment.

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.