SKU: HCAA10105

Arm Cylinder Assembly SH120-3 SH145X-6

$5,500.00

VIP Unlock member-only pricing — Sign in or Join VIP Club

VIP Club Rewards. You could earn 5,500 Points. Detail.

VIP Club Rewards Program

Register now to become a member and enjoy exclusive member pricing at VIP Club.
As a VIP member, you earn 1 point for every $1 you spend. Every 100 points is worth $1 off any future order.

To see your reward points and use them as a discount, please sign in.

Join VIP Club Now

Sold Out Make an Enquiry

Description

Lucas Parts provides premium Arm Cylinder assemblies suitable for Hitachi EX120-2 EX120-5 EX120-6 ZX135 excavators. The arm cylinder is an essential hydraulic component that controls the movement and digging power of the excavator arm, delivering smooth and efficient operation on construction, earthmoving, and mining jobs.

Manufactured for durability and performance, these hydraulic arm cylinders are built to withstand demanding working conditions while maintaining reliable lifting and digging strength. Ideal for repair, replacement, or machine maintenance, Lucas Parts offers dependable excavator hydraulic parts with Australia-wide support.

Features:

Heavy-duty construction
Reliable hydraulic performance
Designed for long service life
Suitable replacement for worn or damaged cylinders
Quality excavator parts from Lucas Parts

Hydraulic Cylinder Measurement Guide - How to Measure Tube OD, Rod Diameter, Pin Bore and Stroke

Pin-and-Bush-Location-Diagram

Lucas Parts provides premium Arm Cylinder assemblies suitable for Komatsu PC100-5 and PC120-5 excavators. The arm cylinder is an essential hydraulic component that controls the movement and digging power of the excavator arm, delivering smooth and efficient operation on construction, earthmoving, and mining jobs.

Suitable for:

Komatsu PC100-5
Komatsu PC120-5

Features:

Heavy-duty construction
Reliable hydraulic performance
Designed for long service life
Suitable replacement for worn or damaged cylinders
Quality excavator parts from Lucas Parts

Contact Lucas Parts today on 1300 987 300 for pricing and availability.

Arm / Stick Hydraulic Cylinder to Suit Sumitomo SH120-3, SH145X-6 Excavator

This stick / arm cylinder assembly is a direct replacement for the Sumitomo SH120-3, SH145X-6, bringing back the strong, controlled arm movement your operator relies on. Supplied as a ready-to-fit unit — barrel, rod, piston, gland and seals — it's built to OEM specifications for a direct bolt-on replacement with no rebuilding required.

Leaks at the gland, a sluggish stick and a rod that has been damaged by rock strikes are all common reasons owners swap in a new arm cylinder. Fitting a new assembly is usually faster and more cost-effective than stripping, honing and re-sealing the old one. In the 12–15 tonne class, these machines handle road works, bulk trenching and site clearing — heavy cycles that wear seals and rods faster than most owners expect.

Key Details

Our SKU	HCAA10105
Part Type	Arm / Stick Hydraulic Cylinder Assembly
Suits	Sumitomo SH120-3, SH145X-6 Excavator
Supplied As	Complete assembly – barrel, rod, piston, gland & seals fitted
Condition	Brand New, Aftermarket (OEM Spec)
Warranty	Backed by Lucas Parts Quality Guarantee

Why Buy From Lucas Parts

Trade Friendly – Account and wholesale pricing available for workshops and fleets
Quality Tested – Every cylinder pressure-checked before it ships
Ready to Fit – Complete assembly – no sourcing seals or rebuilding
Fitment Checked – Send us your serial number and we confirm before dispatch

Fitment Note: Different production years may use different cylinder specifications. Quote your serial number when ordering and our team will verify the correct part.

Specifications

SKU	HCAA10105
Brand	Komatsu
Shipping Weight	170.0000kg
Shipping Width	0.400m
Shipping Height	0.401m
Shipping Length	1.500m
Shipping Cubic	0.240600000m3
Unit Of Measure	ea