The boom foot joint bears the excavator’s full digging force — a worn pin here costs you digging efficiency and risks structural damage to the boom foot housing. This pin-boom cyl rod mt 312 80*621,1723080 restores correct joint clearance with an OEM-spec hardened pin.

Compatible Machines
– 80*621,1723080
– 312
– 621
– 1723080

Why Choose This Pin-Boom Cyl Rod mt 312 80*621,1723080
– OEM-matched pin diameter, length, and retainer groove for direct replacement
– Surface hardness 58–62 HRC on the bearing zone
– Tough alloy steel core handles shock and bending without cracking

Heavy-Duty Construction
This pin-boom cyl rod mt 312 80*621,1723080 is manufactured using chrome-moly alloy steel, case-hardened and hard chrome plated on bearing surface. Ground finish to h6 diameter tolerance: correct fit with OEM bushes. Corrosion-resistant chrome surface. Designed to withstand vibration, impact loads, and harsh operating environments commonly found in construction, quarry, mining, and earthmoving applications. Precision manufacturing helps ensure correct fitment and long service life.

Applications
Suitable for a wide range of heavy equipment and undercarriage systems including:
– Excavators
– Dozers
– Loaders
– Track roller assemblies
– Earthmoving machinery undercarriage components

Maintenance Recommendations
– Always fit with fresh EP grease and re-grease within the first operating shift
– Inspect and replace boom foot bushes at the same service interval
– Apply OEM retaining torque to locking hardware

Australia-Wide Supply
We supply high-quality pin-boom cyl rod mt 312 80*621,1723080 replacement parts across Australia with shipping from NSW. Suitable for aftermarket heavy equipment repairs and undercarriage maintenance applications.