Spare Parts
Keep your ONS pressure cooker running like new with genuine ONS replacement parts — precision-made to fit and built to last.
Genuine ONS Spare Parts
Every component below is a genuine ONS replacement part, manufactured to the same exacting standards as the original. Replacing a worn gasket, handle or valve restores the safe, reliable performance your cooker was built for.
Parts for Various Products
Use these labelled exploded diagrams to identify the exact component you need for your ONS cooker model before raising an enquiry.
ONS HEXA, PEXA & MEXA Models
Including Hard Anodised PEXA & MEXA, and Stainless Steel & TRI-PLY MEXA models.
ONS Big PEXA, Big MEXA & Hard Anodised Big MEXA
Exploded view of the larger-capacity ONS cooker range and its individual replacement parts.
Parts of Variations
The chart below maps how each spare part varies across ONS cooker models and capacities, so you can be sure you are ordering the correct variation for your cooker.