Armstrong Pump Model 4280 Repair Kit 4280S-11-1/2

Armstrong pump model 4280 repair kit P/N 4280S-11-1/2

Includes casing gasket, stainless shaft sleeve, mechanical seal

Kit used with small size new style 4280 pump models:

4280 4x3x11.5,  with 1150 RPM motor 2 HP and smaller

4280 4x3x11.5,  with 1750 RPM motor 5 HP and smaller

4280 4x3x11.5,  with 3500 RPM motor 7-1/2 HP and smaller

Genuine Armstrong pump parts

Shipping rate for continental United States

$569.00

Add to Cart:
  • Model: 4280S-11-1/2
  • Manufactured by: Armstrong Pump
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Verified Buyer
April 14, 2025 by Patrick (United States)
“Good.”
Verified Buyer
April 14, 2025 by Randy M. (United States)
“Great just need little adjusting for search.

Nice prices”
Verified Buyer
April 13, 2025 by Kevin G. (United States)
“We’ve always had great service with Shortys!”

Manufacturer Info

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