10034 - Spiralink - Circulator Coupler -1/2 " x 5/8 " or 5/8" x 5/8"

10034 – Spiralink Circulator Coupler – 1/2" x 5/8" or 5/8" x 5/8"

The Spiralink 10034 Circulator Coupler is a reliable replacement coupler designed for use in hydronic circulator pump applications, including Taco®‑style pumps. Featuring bore sizes of 1/2" x 5/8" or 5/8" x 5/8", this coupler provides a secure mechanical connection between the motor shaft and pump shaft for smooth, efficient power transfer.

Built for durability and consistent performance, the Spiralink 10034 helps reduce vibration, misalignment, and premature wear, making it ideal for pump repair, servicing, or preventative maintenance in residential and light commercial heating systems.

Key Features

• Circulator pump replacement coupler
• Bore sizes: 1/2" x 5/8" or 5/8" x 5/8"
• Ensures proper motor‑to‑pump power transfer
• Helps minimize vibration and mechanical wear
• Durable construction for long service life
• Ideal for pump maintenance and repair