March 0135-0023-1000 O-Ring

The March 0135-0023-1000 Viton O-Ring is a replacement wet-end sealing component designed for compatible March magnetic drive pump assemblies.

Identified as O-Ring size -040, it features a 1/16-inch cross section, 2-7/8-inch inside diameter, and 3-inch outside diameter. The O-Ring installs between mating wet-end components to help maintain a secure seal and reliable fluid containment during pump operation.

Constructed from Viton, the 0135-0023-1000 offers strong resistance to many compatible chemicals, oils, fuels, and elevated temperatures, making it suitable for demanding chemical circulation and industrial fluid-handling applications.

March Pump lists this O-Ring as an available sealing component for multiple MDX pump configurations, including MDX-5/8, MDX-1/2, and MDX-3-5/8 assemblies. It is also used in selected other March pump families that specify the same 3-inch OD Viton seal.

The 0135-0023-1000 is well suited for preventive maintenance, wet-end rebuilding, and replacement of worn, hardened, flattened, or damaged O-Rings. Installing the correct seal helps reduce leakage risk and supports dependable pump operation.

Always verify the exact pump model, seal material requirement, and fluid compatibility before installation.