Standard Ignition Windshield Wiper Switch P/N:DS-491
Take command of your wipers with the Standard Ignition Windshield Wiper Switch DS-487 (also written DS487), a direct-fit replacement for the 1986-1987 Buick Riviera and 1986-1987 Oldsmobile Toronado. This switch controls the wiper motor circuit at the driver's command, and a worn or intermittent original can leave you unable to select speeds or turn the wipers on and off reliably — if the switch is the cause, this replaces it.
Backed by decades of industry-leading research and development focused on meeting the technician's needs, the DS-487 helps restore proper control of the wiper circuit on the listed applications. See the Buyer's Guide tab for the full engine-level fitment details for your vehicle.
Interchange: S3086 · WS1060 · 7847477
This part cross-references / interchanges with the following part numbers:
What vehicles does the DS-487 fit?
It's a direct-fit replacement for the 1986-1987 Buick Riviera and 1986-1987 Oldsmobile Toronado. Check the Buyer's Guide tab to confirm fitment for your vehicle.
What does this wiper switch do?
It controls the windshield wiper motor circuit, letting the driver turn the wipers on and off and select the available settings. It signals the wiper system based on your input.
What are the signs my wiper switch may need replacing?
Common signs include wipers that won't turn on or off, won't change speeds, or operate only intermittently. Diagnose the cause first, since other components can produce similar symptoms.
Is the DS-487 tested before shipping?
Yes. Standard Ignition states each switch is 100% tested to verify both mechanical and electrical switching performance.
What interchange numbers does this switch cross-reference?
The DS-487 replaces interchange numbers S3086, WS1060, and 7847477. Matching one of these numbers helps confirm you have the correct part.
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.