March 0155-0010-1000 O-Ring
March 0155-0010-1000 OEM Viton O-ring for compatible Series 7 magnetic drive pumps, with 1/8-inch cross section and 4-3/8-inch outside diameter.
The March 0155-0010-1000 Viton O-Ring is an OEM replacement sealing component used in compatible March Series 7 magnetic drive pumps. March identifies this part as a 1/8-inch cross-section x 4-3/8-inch outside-diameter O-ring manufactured from Viton.
This O-ring is installed between compatible wet-end housing components to help maintain a reliable fluid seal. Because sealing dimensions and elastomer material are critical to pump performance, using the correct March part number is important when servicing or rebuilding a Series 7 pump.
March 0155-0010-1000 Specifications
- Manufacturer: March Manufacturing / March Pump
- Part Number: 0155-0010-1000
- Part Type: O-Ring / Wet-End Seal
- Material: Viton
- Cross Section: 1/8 inch
- Outside Diameter: 4-3/8 inches
- Nominal O-Ring Size: -243
- Application: Compatible March Series 7 magnetic drive pumps
Compatible March Pump Families
- TE-7P-MD compatible configurations
- TE-7K-MD compatible configurations
- TE-7S-MD compatible configurations
- Flanged TE-7S-MD compatible configurations
- Other Series 7 configurations that specify March part number 0155-0010-1000
Key Features
- OEM March replacement O-ring
- Viton elastomer construction
- 1/8-inch cross section and 4-3/8-inch outside diameter
- Used as a wet-end sealing component in compatible Series 7 pumps
- Compatible with polypropylene, Kynar and stainless-steel Series 7 configurations where this exact part number is specified
- Suitable for routine maintenance, repair and wet-end rebuilding
Series 7 Pump Compatibility
March official parts breakdowns list 0155-0010-1000 in multiple Series 7 designs, including polypropylene TE-7P-MD, Kynar TE-7K-MD, stainless-steel TE-7S-MD and flanged TE-7S-MD configurations. This allows the same Viton O-ring to be used across several Series 7 wet-end material variants when specifically called out by the manufacturer parts list.
Replacement and Maintenance
Inspect the O-ring whenever the pump wet end is disassembled. Replace the seal if it shows signs of flattening, cracking, swelling, cuts or other damage that could compromise sealing performance.
Before ordering or installation, verify that your exact pump model and parts breakdown specify March 0155-0010-1000. Chemical compatibility should also be checked because Viton may not be suitable for every pumped liquid or operating condition.
