1989 Mercury Sable Wiper Size
The 1989 Mercury Sable takes a 20" driver-side and 20" passenger-side wiper blade, and a 18" rear blade.
Driver20"
Passenger20"
Rear18"
Factory attachment: J-hook
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Both front blades are the same 20" length, so a matching pair works. It also has a 18" rear wiper, which is a different style of blade from the fronts. The factory blades use a J-hook attachment; most premium blades include an adapter for it. Swapping both front blades at the same time keeps wear even and the glass clear.
Where to buy wipers for the 1989 Mercury Sable
You need 20+20+18 inch blades. Most auto-parts stores will swap them in free if you buy in store, and it is a 5-minute job to do yourself. To order the exact sizes online:
Search 20+20+18 inch wipers on AmazonRain-X, Bosch, Trico and othersAs an Amazon Associate we earn from qualifying purchases, at no extra cost to you.
Frequently asked
What size wipers does a 1989 Mercury Sable take?
It takes a 20" driver-side and 20" passenger-side blade, plus a 18" rear blade.
Are the front wiper blades the same size on a Mercury Sable?
Yes - both front blades are 20".
What wiper connector does it use?
The factory blades use a J-hook attachment; most aftermarket blades include an adapter.