Worn bushes accelerate pin wear and increase slop in the excavator undercarriage — left unchecked, the damage extends to costly structural components. This bush 70*85*85 203-70-56121 is manufactured to OEM dimensional specifications for correct interference fit and service life.

Compatible Machines
– 203-70-56121

**Key Features:**
– OEM-matched inner and outer diameter tolerances for correct press-fit installation
– Flange and overall length dimensions matched to original for correct pin engagement
– Compatible with OEM pins; no bore re-machining required after press fitting

**Material & Treatment:**
– Oil-impregnated sintered bronze or high-strength steel depending on application
– Heat-treated surface for wear resistance at rated operating loads
– Corrosion-protected finish for pre-installation storage in site conditions

**Fitting Notes:**
– Press fit using proper tooling — hammering damages bore geometry
– Apply anti-seize compound on outer diameter before installation in steel housings
– Replace pins when fitting new bushes — worn pins in new bushes cause premature failure

Stocked at Wetherill Park NSW. Australia-wide delivery.