Armstrong 4280 M-6JM 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.

Includes 6" gasket P/N 426401-002

Stainless shaft sleeve P/N 810150-255

Mechanical seal P/N 975000-984

Correct seal replacement kit for:

4280 4x3x6W with 1150 RPM motor 7.5 HP and larger

4280 4x3x6W with 1750 RPM 15 HP and larger

4280 4x3x6W with 3500 RPM motor 20 HP and larger

Shipping rate for continental USA

$687.00

Add to Cart:
  • Model: 4280M-6JM
  • 25999 Units in Stock
  • Manufactured by: Armstrong
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May 8, 2025 by Evelyn S. (United States)
“Great prices, and can get hard to find parts”
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May 8, 2025 by Judi B. (United States)
“always fast and efficient service”
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May 3, 2025 by Johanna S. (United States)
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Manufacturer Info

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