Armstrong Pump Model 4280 Repair Kit 4280S-6




Armstrong pump model 4280 repair kit P/N 4280S-6

Includes casing gasket, stainless shaft sleeve, mechanical seal

Kit used with small size new style 4280 pump models:

4280 1.5x1x6,   4280 3x1.5x6,   4280 3x2x6,   4280 3x2.5x6,   4280 4x3x6

4280 4x3x6W with 1150 RPM motor 5 HP and smaller

4280 4x3x6W with 1750 RPM 10 HP and smaller

4280 4x3x6W with 3500 RPM motor 15 HP and smaller

Genuine Armstrong pump parts

Shipping rate for continental United States



  • Model: 4280S-6
  • Manufactured by: Armstrong Pump
  • UPC:

Manufacturer Info

About Us

Welcome to Shortys HVAC Supplies. We are located on the South West side of Indianapolis, IN. Our purpose is to provide Original Equipment Manufacturer parts for the repair and maintenance upkeep of furnaces, air conditioners, ventilation systems and pumps to the general public as well as contractors and commercial building maintenance staff.

We sell brand new OEM parts for most manufacturers such as Carrier, Bryant, Payne, Lennox, Armstrong Aire, Ducane, Trane, American Standard, Heil, Tempstar, Nordyne, Goodman, Rheem, Ruud, York, Coleman, Modine, Reznor, Armstrong Pumps, Bell and Gossett pumps, Weil McLain, Lochinvar, McDonnell Miller, Hoffman Specialties, Manitowoc, Scottsman and we strive to make sure you get the correct part for your application.

Give us a call with the information from your equipment nameplate and we will do our best to help. We can be reached at our local phone number 317-821-8770, Toll Free 877-821-8770 or by fax at 317-821-8772. Our physical address is 7720 S Mooresville Rd in West Newton , IN 46183. Business hours are 8-5 EST M-F. Prior to making repairs please consult your manufacturers instructions and follow all safety precautions. Improper repairs can lead to equipment damage or personal injury or death. If you are unsure of your ability please call a professional company.




Company Name

Shortys HVAC Supplies LLC


7720 S Mooresville RD
West Newton, IN
USA 46183

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Shortys HVAC Supplies LLC 2019