7072970930, 707-29-70930 HEAD CYLINDER KOMATSU

When buyers search for 7072970930, 707-29-70930 HEAD CYLINDER KOMATSU, they are usually looking for a hydraulic cylinder head/gland component, not an engine cylinder head. Public Komatsu parts references identify 707-29-70930 as HEAD,CYLINDER and connect it with multiple machine families, including crawler stabilizers CS360, excavators PC10 / PC15 / PC15T, graders GD305A / GD355A / GD405A / GD510R / GD511A, and wheel loader WA40. Related catalog references also show the same part in model-specific hydraulic cylinder pages such as the drawbar shift cylinder on GD511A-1, the scarifier cylinder on GD405A-2, and the arm cylinder on PC15-2.

That application pattern is important. It means 7072970930, 707-29-70930 HEAD CYLINDER KOMATSU is a shared hydraulic end-head design used across different Komatsu cylinder assemblies depending on the machine model and serial range. In other words, this is not a one-machine-only part, but it is still a fit-sensitive component that should be matched carefully by application. The public GD511A-1 parts references show it inside the drawbar shift cylinder together with an O-ring, back-up ring, bushing, dust seal, snap ring, piston, piston ring, wear ring, and rod nut, which is exactly the surrounding parts set expected for a hydraulic cylinder gland/head assembly.

From the uploaded images, the part has all the visual cues of a hydraulic cylinder head. It shows a large external thread for installation into the cylinder barrel, a machined internal bore for rod guidance and sealing support, spanner-style notches on the face for tightening, and stepped internal sealing surfaces. That geometry matches the real job of a cylinder head: retaining rod seals, guiding rod movement, and securing the end of the hydraulic cylinder assembly.

At 3GEN Export, we supply 7072970930, 707-29-70930 HEAD CYLINDER KOMATSU as an OEM supplier for heavy machinery spare parts, with worldwide delivery in 5 working days.

Product Overview

Public catalog evidence makes the role of this part much clearer than the name alone. The term HEAD,CYLINDER in the Komatsu hydraulic parts system refers to the cylinder-end head or gland piece that supports sealing, rod guidance, and end retention inside the hydraulic cylinder. On the GD511A-1 drawbar shift cylinder page, 707-29-70930 appears together with 07000-12065 O-RING, 07001-02065 RING,BACK-UP, 07177-04025 BUSHING, 198-63-75190 SEAL,DUST, 07179-12052 RING,SNAP, 707-36-70910 PISTON, and 707-44-70070 RING,PISTON, which strongly supports that hydraulic-gland interpretation.

A PC15-2 arm cylinder parts reference shows the same pattern. Public snippets for that machine place 707-29-70930 in the cylinder together with bushings, dust seals, and rod packing, again indicating that the part belongs to the rod-end sealing and guidance section of the hydraulic cylinder. The same part also appears in GD405A-2 scarifier cylinder references with bushing and dust-seal companions, which shows that Komatsu reused this design across more than one cylinder type.

That is why a good product page for 7072970930, 707-29-70930 HEAD CYLINDER KOMATSU should explain that it is a hydraulic cylinder head/gland, not an engine part. Buyers searching this number are usually maintenance professionals, dealers, or fleet operators who already know they need the correct cylinder-end component. They are trying to confirm fitment, function, and supply reliability before ordering.

What 7072970930, 707-29-70930 HEAD CYLINDER KOMATSU Does

The main job of this Komatsu cylinder head is to close and support the rod end of the hydraulic cylinder assembly. In practical terms, that means it helps hold the rod packing, dust seal, bushing, snap ring, and sealing elements in the correct position while allowing the rod to move in and out under hydraulic pressure. The surrounding parts listed in public cylinder pages make that role clear: O-rings and back-up rings help static sealing, the bushing supports rod guidance, the dust seal helps protect against contamination, and the snap ring retains the assembled elements.

This function matters because a hydraulic cylinder is only as reliable as its sealing and guiding system. If the head is worn, damaged, or dimensionally incorrect, the cylinder can suffer from poor rod support, seal damage, contamination ingress, hydraulic leakage, or shortened service life. For that reason, 7072970930 should never be treated as a random threaded sleeve. It is a precision hydraulic interface component with direct impact on cylinder performance.

The machine-specific application can vary. On GD511A-1, public references tie it to the drawbar shift cylinder. On GD405A-2, the same part appears in the scarifier cylinder. On PC15-2, it appears in the arm cylinder. That tells buyers something important: the part number is stable, but the cylinder function changes by model. Fitment should therefore always be confirmed by exact machine model and serial range before publishing or selling.

Visual Design and Engineering Features

The uploaded images provide strong practical support for the catalog interpretation.

Large external thread

The body has a full-length fine external thread, which is a classic hydraulic-cylinder-head feature. This thread allows the part to screw securely into the cylinder barrel and maintain end retention under pressure and service load.

Internal machined bore

The central bore is finely machined and stepped. This suggests seating surfaces for the rod path, seal carriers, or guidance elements. In hydraulic service, that internal precision is critical for keeping the rod aligned and protecting the sealing system.

Face notches for installation

The top flange includes multiple recessed notches. These are typical service-tool engagement points used for tightening or loosening the head during cylinder assembly and rebuild work. That is exactly what workshops expect from a serviceable hydraulic gland/head.

Stepped sealing shoulders

The part shows multiple shoulders and grooves around the outer and inner profile. Those features are consistent with O-ring, back-up ring, and internal component seating positions, which aligns with the public parts listings that pair this head with static sealing and rod-sealing items.

Heavy-duty machined steel body

The overall finish and geometry suggest a robust machined steel component intended for repeated hydraulic duty rather than light mechanical use. That makes sense given the grader, stabilizer, excavator, and wheel-loader applications publicly associated with this part.

Technical Details and Specification Context

Public sources give a useful technical framework for this part, even though they do not all expose the same level of detail.

Official-style part naming

The part is publicly listed as HEAD,CYLINDER under part number 707-29-70930, with the unhyphenated market search form 7072970930 also used in listings and parts searches.

Known companion parts

Public GD511A-1 and PC15-2 references show the part used with:

• O-RING

• RING,BACK-UP

• BUSHING

• SEAL,DUST

• RING,SNAP

• PACKING,ROD

• PISTON

• RING,PISTON

• RING,WEAR

That companion-parts pattern is exactly what buyers expect around a hydraulic cylinder head/gland. It confirms the part’s function more clearly than the name alone.

Functional application by machine

Public references show this head in:

• Drawbar shift cylinder on GD511A-1

• Scarifier cylinder on GD405A-2

• Arm cylinder on PC15-2

This cross-application use is common in Komatsu hydraulic parts, where the same head design may serve different cylinder assemblies across different machine families.

KOMATSU Models Publicly Linked to 707-29-70930

The broadest public compatibility listing for this number includes several equipment categories rather than one narrow machine line. Public parts-search results associate 707-29-70930 with:

• CS360

• PC10

• PC15

• PC15T

• GD305A

• GD355A

• GD405A

• GD510R

• GD511A

• WA40

• and related references also mention GS360.

More detailed public seller snippets show specific serial-based applications such as:

• GD305A-1 S/N 6001-6733

• GD355A-1 S/N 5001-UP

• GD405A-1 S/N 50002-UP

• GD405A-2S S/N 4001-UP

• GD510R

• GD511A-1

In the model-specific cylinder pages found publicly, the application examples include:

• GD511A-1 S/N 10001-UP drawbar shift cylinder

• GD405A-2 S/N 1001-1999 scarifier cylinder

• PC15-2 S/N 2001-UP arm cylinder

Because the same head appears across different machines and cylinder groups, the safest commercial wording is this: 7072970930, 707-29-70930 HEAD CYLINDER KOMATSU is publicly linked to multiple Komatsu hydraulic-cylinder applications, but final fitment should always be verified by exact model, serial number, and cylinder group before order confirmation.

Why This Part Matters in Real Maintenance

A hydraulic cylinder can fail for reasons that begin at the head. If the head no longer supports the seals correctly, rod packing can wear faster. If the bushing seating is damaged, rod guidance can suffer. If the threaded body is worn or improperly matched, cylinder assembly integrity may be compromised. That is why maintenance teams often replace the head when rebuilding a worn cylinder rather than focusing only on the piston or the seals.

In real workshop practice, this makes 7072970930 a high-value rebuild component. It sits at the point where hydraulic sealing, rod support, and assembly retention all come together. The public parts references show exactly that, because the head is always surrounded by bushings, dust seals, rod packing, O-rings, and retaining elements rather than by general chassis hardware.

For buyers, that means this part should be described as more than just “head.” It is a hydraulic cylinder head/gland for Komatsu equipment, and its condition has a direct effect on leakage control, rod life, and rebuild quality.

Search Strategy and SEO Positioning

For SEO, the strongest approach is to keep both number formats visible while supporting them with natural terms buyers actually use. The most useful search variants around this product are:

Common search forms

7072970930
707-29-70930
707 29 70930
Komatsu head cylinder 707-29-70930
Komatsu hydraulic cylinder head
Komatsu cylinder gland
drawbar shift cylinder head Komatsu
scarifier cylinder head Komatsu
arm cylinder head Komatsu

That balance matters because exact-number buyers are usually close to purchase, while descriptive buyers may still be confirming function. A page that combines both styles performs better than one that repeats only the full exact-match phrase.

Why Buy from 3GEN Export

At 3GEN Export, we supply 7072970930, 707-29-70930 HEAD CYLINDER KOMATSU as an OEM supplierspecialized in heavy machinery spare parts for workshops, fleet owners, dealers, and international buyers.

For a hydraulic part like this, speed and accuracy matter. One wrong head can delay a cylinder rebuild, keep a machine parked, and turn a straightforward repair into a repeat job. That is why we focus on clear identification, export-ready supply, and worldwide delivery in 5 working days.

For buyers handling Komatsu graders, compact excavators, crawler stabilizers, or wheel loaders, 3GEN Export provides a direct path to source this hydraulic cylinder component with commercial clarity and fast dispatch.

Weight

I could not verify an official catalog weight for this exact part from the public parts-catalog snippets I found. Public seller listings suggest a reference shipping weight around 1.40 kg: one marketplace shows 1010 in a weight column, and an Amazon open-box listing shows . Based on those public seller figures, a practical reference is about 1.40 kg, but I would verify this before publishing it as a fixed warehouse spec.

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.