A tooth lost in the digging face is a serious incident — it stops production, risks equipment damage, and requires excavation and recovery. This tooth pin & retainer 113-78-21170 is the right lock system specification for your adapter, providing OEM retention force and correct installation fit.

Compatible Machines
– 113-78-21170

Why Choose This Tooth Pin & Retainer 113-78-21170
– OEM lock geometry
– Correct hardness specification
– Direct fit with OEM teeth and adapters; no filing or modification to fit

Heavy-Duty Construction
This tooth pin & retainer 113-78-21170 is manufactured using alloy steel or premium polyurethane compound depending on lock system type. Corrosion-resistant coating for storage and service in ground conditions. Dimensional tolerance matches OEM pocket geometry for correct installation engagement. 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
– Replace the full tooth set retainers simultaneously — never mix old and new locks
– Inspect adapter noses before fitting
– Use correct installation hammer or tool — incorrect fitting reduces retention force

Australia-Wide Supply
We supply high-quality tooth pin & retainer 113-78-21170 replacement parts across Australia with shipping from NSW. Suitable for aftermarket heavy equipment repairs and undercarriage maintenance applications.