Taco Replacement Casing O-Ring for Select 003-007 Models

Taco 007-003RP Replacement Casing O-Ring for Select 003 - 007 Models A replacement casing O-ring used on select Taco circulator pumps to reseal the casing and stop leaks during pump service. Key Features: * Replacement casing O-ring (pump service part) * Product highlights list it for 003 Series, 005 Series, 006 Series, and 007 Series * Listed specs on the product page: Application: Heating; Type: Pump Part * Product Q&A confirms the gasket material is EPDM and notes EPDM is not recommended to contact petroleum products (can be damaged) Compatibility & Applications: * Listed "Used With" series: 003 Series, 005 Series, 006 Series, 007 Series * Taco's replacement parts list for "00 Circulators" shows this casing O-ring part number used across multiple pump model numbers (model-specific) * Must only be used where the manufacturer specifies this exact part number: 007-003RP Installation & Operation Notes: * Installation should be performed by a qualified hydronic/heating technician or experienced service professional * Reference the pump's service/installation documentation and the manufacturer's replacement parts list for the exact model to confirm the correct casing O-ring part number * Important material note from Q&A: if you use any lubricant, avoid petroleum-based products because EPDM can be damaged by petroleum contact * Manufacturer replacement parts documentation notes that casing O-ring replacement parts include casing body bolts Maintenance & Troubleshooting: * Reviews consistently tie this O-ring replacement to fixing leaks/drips at the pump casing without needing to replace the whole circulator or disturb piping * Multiple reviewers note the package includes two O-rings (thin and thick) and that choosing the correct one for their pump stopped the leak * If a leak continues after replacement, reviews suggest trying the alternate thickness (when applicable) and verifying proper seating during reassembly User Reviews & Q&A Summary: * Review themes: restores a leaking circulator to service, avoids replacing the entire pump, and is viewed as a practical repair part despite being "just an O-ring" * Several users describe the original O-ring as old/brittle and report the replacement stopped the leak immediately * Q&A theme: confirmation of EPDM material and guidance to avoid petroleum products in contact with the gasket material to prevent damage