Replacement CDI for all 900, 1050 models. This is a non HST timed ignition CDI box.
*Please be advised -when installing a replacement Polaris domestic CDI it is extremely important to verify correct flywheel timing. Refer to a Polaris service manual for your specific models timing and time accordingly after the new CDI is installed.
*Failure to follow this recommendation can result in piston deterioration and possible engine failure.
Replaces OEM part(s): 4010317, 4010379, 4010543, 4010885.
