KEISER M3/M5 IDLER TENSION PULLEY AND BEARING Replacement idler pulley and bearing for Keiser M3, M3+, M3i, M3Xi indoor cycle and M5 Elliptical. Includes 6203 ZZ Bearing. Used with:

Keiser - M3

Serial#s 060822-05004 to 070614-14730

Serial#s 070614-14731 to Present

Keiser - M3+

Model 5505XXX

Keiser - M3i

Model 5501XXX

Keiser M5 - Elliptical strider pulley


Serial#s 060822-05004 to 070614-14730

Serial#s 070614-14731 to Present


Model 5505XXX


Model 5501XXX

• Fits Keiser M3, M3+, M3i, M3Xi indoor cycle and M5 Elliptical
• Keiser OEM Replacement Idler Pulley Tensioner and Bearing
• Bearing Size 6203ZZ