Armstrong Fluid Technology 816707-005K Seal Kit R-448A the 7419309 is the verified

the 7419309 is the verified direct substitute for the legacy 3161274 and 7433677 models

Replacing a faulty 604235-01 tensioner is vital to prevent belt snapping or motor overload

Enhanced Safety: Includes internal line break protection to prevent motor failure during abnormal operating conditions

replacing it with a new ADP 176799953 is the most effective solution

the L170-40F is an automatic reset switch that re-engages the circuit once the plenum cools down to 130°F

Armstrong Fluid Technology 816707-005K Seal Kit R-448A the 7419309 is the verifiedThe Armstrong Fluid Technology 816707 005K Seal Kit is a high performance 3 4 inch mechanical seal designed for industrial circulator pump maintenance. This genuine OEM kit acts as a direct replacement for the discontinued 818707 005K and 816707 001 models, ensuring a precise fit and restoring system integrity. Engineered with EPDM rubber and durable stainless steel components, it is built to withstand temperatures up to 225F. This kit is essential