Armstrong Bushing 2-1/8″ — #425520-003

OEM 2-1/8″ bushing for Armstrong 4300 Series pumps. Designed to pair with the 8B2 2-1/8″ mechanical seal #975002-374 for proper shaft/seal fit.

At a glance:

• OEM part: Armstrong 425520-003

• Size: 2-1/8″

• Use with seal: #975002-374 (8B2, 2-1/8″) 

• For Armstrong 4300 Series pump groups listed below

Need the matching seal as well?
We supply the Armstrong 8B2 2-1/8″ Mechanical Seal (#975002-374) — order here: Armstrong 8B2 2-1/8″

What’s included:

• 1 × Armstrong 2-1/8″ bushing (425520-003)

Cross-Reference / Compatibility

Armstrong 4300 Series

• Groups 25–51 (TC/TSC motors) — use with seal #975002-374

• Groups 6 & 7 — use with seal #975002-374

• L Group 21–24 (TC/TSC/TCZ motors) — use with seal #975002-374