We stock large quantitys of Pre owned spare parts for Atlas Copco ZR3/4/5/6 air compressors including complete gearboxes that can be supplied 'as is' or overhauled and fitted with NEW Ztechnique or Refurbished Low Pressure and High Pressure elements , oil pump, etc 
 
If you need a bull geat and LP HP Pinions please tell us and we can assit you 
 
Basic gearbox price below. 
Overhauled/ refurbished etc, will require additional pricing for your chosen gearbox