Manage the vacuum signal that keeps your engine's timing and emissions functions switching on cue with the Standard Ignition Ignition Vacuum Switch Valve MC1501. It is a direct-fit replacement for the 1984-1990 Harley-Davidson FXST Softail Standard.
An ignition vacuum switch valve opens or closes an internal vacuum passage in response to engine operating conditions, directing the vacuum signal to the component it controls. When the valve inside your motorcycle has failed and is the cause of a lost or incorrectly routed vacuum signal, this unit replaces it.
Signs the original valve may need replacing include a vacuum signal that no longer switches, related driveability complaints, or a valve that leaks or sticks. Diagnose the underlying cause before replacing, as these symptoms can have other sources.
Interchange: MC28010 · 2655884. Manufacturer part number MC1501.
This part cross-references / interchanges with the following part numbers:
What vehicle does the MC1501 fit?
It is a direct-fit replacement for the 1984-1990 Harley-Davidson FXST Softail Standard. Check the Buyer's Guide tab to confirm it matches your motorcycle.
What does an ignition vacuum switch valve do?
It opens or closes an internal vacuum passage in response to engine operating conditions, directing the vacuum signal to the component it controls.
What numbers does this part interchange with?
It cross-references to MC28010 and 2655884. The manufacturer part number for this unit is MC1501.
How do I know if my vacuum switch valve has failed?
Signs may include a vacuum signal that no longer switches, a valve that sticks or leaks, and related driveability complaints. Diagnose the cause first, since these can have other sources.
Is the MC1501 a direct-fit replacement?
Yes. It serves as a direct-fit replacement for the original ignition vacuum switch valve on the listed 1984-1990 Harley-Davidson FXST Softail Standard.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
