Master pins take the full chain assembly tension load at the connecting point — there’s no engineered redundancy at this joint. A worn or incorrectly dimensioned master pin risks chain separation under load, which can cause serious equipment damage. This aftermarket master pin 330d for the 330D is machined to OEM pin diameter, length, and lock geometry specifications.

Why Choose This Master pin 330D
– Pin diameter: OEM specification ±0.01mm — correct press-fit in master link bore
– Overall length: OEM dimension for proper locking clip engagement
– Head profile: OEM geometry — fits correctly in master link bore and lock assembly

Heavy-Duty Construction
This master pin 330d is manufactured using case-hardened alloy steel. Tough alloy steel core: resists shear fracture under chain tension loading. Machined to tight tolerances; clean surface finish prevents galling during press installation. 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
– Use a proper master pin press tool — never use a hammer for final installation
– Confirm the lock clip or bolt is fully seated before running the machine
– Replace master pin on every chain removal — don’t reuse a previously pressed pin

Australia-Wide Supply
We supply high-quality master pin 330d replacement parts across Australia with shipping from NSW. Suitable for aftermarket heavy equipment repairs and undercarriage maintenance applications.