► Part Number: SM24381 ► Power Supply, 110V, 2-Pin w/ Power Cord ► Replacement for StairMaster Models: 4400PT, 4600PT, 7000PT, SC5, SM5, SM916, Freeclimber, Gauntlet ???? PLEASE NOTE: Stair Master discontinued the 3-pin power supply - the 2-pin power supply is the new replacement and will work with both 2 and 3 pin jacks.