Armstrong 4280 M-10JM Repair Kit

Kit to replace seal in Armstrong model 4280 new style circulator

New style circulator can be determined by the discharge line being in the center of the volute. The old style design has the discharge line offset to on side

This kit works only with  motors with JM in motor frame number. Motors with JP in motor frame number will require a different sleeve kit

Includes 10" gasket P/N 426401-004, stainless shaft sleeve P/N 810150-255, mechanical seal P/N 975000-984

OEM Armstrong pump parts

Shipping rate for continental USA

 

 

$657.00

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  • Model: 4280M-10JM
  • 27000 Units in Stock
  • Manufactured by: Armstrong
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July 14, 2025 by Anthony O. (PA, United States)
“Great selection of parts from all kinds of manufacturers!!! Awesome! First stop when I need parts. Thank you!”
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July 13, 2025 by Tim S. (United States)
“Product arrived in timely fashion and was in good condition.”
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“Very easy reorder”

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