March 0125-0065-1000 O-Ring 0125-0065-1000

March 0125-0065-1000 Viton Cover O-Ring for 2CP-MD Pumps

The March 0125-0065-1000 is a genuine OEM Viton/FKM cover O-ring designed for compatible March Series 2CP magnetic drive centrifugal pumps. This replacement seal is installed at the specified pump housing interface to help maintain fluid containment within the wet end.

March identifies this part in the LC-2CP-MD parts breakdown. Its material and dimensions distinguish it from other O-rings used in the same pump assembly.

Key Features

• Genuine March Manufacturing replacement O-ring
• Manufacturer part number 0125-0065-1000
• Viton/FKM elastomer construction
• 3/32-inch nominal cross section
• 2-inch nominal inside diameter
• Used as the cover O-ring in compatible LC-2CP-MD pumps
• Associated with compatible Series 2CP pump configurations
• Supports wet-end sealing and routine maintenance

Reliable Pump Housing Sealing

The cover O-ring forms an elastomeric sealing interface between the applicable pump housing components. When installed correctly, it helps prevent process liquid from escaping through the housing joint.

Correct seal dimensions, material and groove placement are essential. An unsuitable replacement may fail to seat correctly or may not provide the intended sealing performance.

Viton/FKM Material Benefits

Viton is an FKM fluoroelastomer used in selected March pump sealing configurations. It offers a different chemical-resistance profile from Buna-N and other elastomers. Compatibility must be checked against the actual fluid, concentration, temperature and operating environment.

Compatible March Pumps

March lists 0125-0065-1000 as the cover O-ring for the LC-2CP-MD. Manufacturer and distributor references also associate this seal configuration with compatible 2CP-MD family pumps. Always confirm the exact model and original seal material before substitution.

Maintenance and Replacement

Inspect the O-ring whenever the pump housing is opened. Replace the seal if it is cut, flattened, hardened, swollen, cracked or otherwise damaged. Clean the housing groove and mating surfaces before installation, and avoid twisting or pinching the new O-ring.

Cover O-Ring vs. Bracket O-Ring

The 0125-0065-1000 is the cover seal. The LC-2CP-MD also uses 0125-0121-1000 as a separate bracket O-ring. These parts serve different sealing locations and should not be confused.

Selection and Ordering Guidance

Confirm the original manufacturer part number, elastomer and pump model. Choose March 0125-0065-1000 when the application requires the specified OEM Viton cover O-ring.