Aurora Pump 476-0253-644 Seal Kit

The Aurora Pump 476-0253-644 Seal Kit is a premium mechanical seal kit engineered specifically for high-performance pump maintenance. Designed for use with larger bore systems, this 1.5-inch shaft seal kit is a critical component for Aurora 340 series and 382A series pumps, including models 341A, 342A, and 344A. Utilizing Buna elastomers and a high-grade carbon face with a silicon carbide stationary seat, this kit ensures a secure, leak-free seal in demanding industrial HVAC and commercial water applications. By providing a complete pump rebuild kit, it addresses common points of failure, effectively preventing fluid bypass and maintaining system pressure. This comprehensive OEM-grade replacement includes a heavy-duty brass shaft sleeve, multiple case gaskets, an impeller key, and all necessary sealing hardware for a professional-grade overhaul. Integrating this kit into your regular preventative maintenance schedule significantly reduces the risk of unplanned downtime in critical pumping operations.

Key Benefits

• Complete Replacement: Includes the mechanical seal, shaft sleeve, O-rings, impeller gaskets, and case gaskets for a total system refresh.
• Enhanced Durability: Features an abrasion-resistant carbon rotary and silicon carbide seat for extended service life in standard water applications.
• Leak Prevention: Precision-manufactured Buna elastomers ensure a reliable at-rest and dynamic seal against the 1.500" pump shaft.
• Broad Compatibility: Directly supports Aurora Pump models 341A, 342A, and 344A with motor frame sizes 254JM and larger.

Common Questions

• Can this kit be used with glycol systems? This specific kit uses Buna rubber, which is optimal for general water service; for glycol or high-temperature applications, an EPR or Viton version should be used.
• Does this include the shaft sleeve? Yes, the 476-0253-644 is a large bore seal kit that includes the lead-free brass shaft sleeve.
• What shaft size is this kit designed for? This kit is specifically sized for a 1.500-inch (1-1/2") diameter shaft.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.

This item is not eligible for free shipping.