Conventional blades
- Metal frame, the classic design
- Lowest cost, fine on flatter glass
In your sizes: 18" + 22" + 18" + 22"
Check price on Amazon1991 Mercury Grand Marquis Wiper Blade Sizes
Your wiper sizes
Driver
Either
18in
450 mm
or
22in
550 mm
Passenger
Either
18in
450 mm
or
22in
550 mm
Side Pin (3/16") connector
These sizes are for the 1991 Mercury Grand Marquis. Where two lengths are listed, measure your old blade to choose.
Blades for your Mercury Grand Marquis
Check price on Amazon: Driver 18" only
Check price on Amazon: Driver 22" only
Check price on Amazon: Passenger 18" only
Check price on Amazon: Passenger 22" only
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Best wiper blades for the 1991 Mercury Grand Marquis
Three blade types, each in your sizes.
Beam blades
- One piece with no frame to ice up
- Hugs curved modern windshields
In your sizes: 18" + 22" + 18" + 22"
Check price on AmazonHybrid blades
- A frame under an aero shell
- Even pressure with a sleek profile
In your sizes: 18" + 22" + 18" + 22"
Check price on AmazonBlades in your sizes
Each button opens that blade in your length.
Beam blade
Bosch ICON
Conventional blade
Rain-X Weatherbeater
No photo yet
Type not stated
PIAA Super Silicone
Beam blade
TRICO NeoForm
As an Amazon Associate we earn from qualifying purchases. This never changes the wiper sizes we show.
Compare these blades
All comparisons-
vsNo photo yet
Bosch ICON vs PIAA Super Silicone
14 owner posts name both
-
vs
Bosch ICON vs TRICO NeoForm
13 owner posts name both
-
vs
Bosch ICON vs Rain-X Weatherbeater
8 owner posts name both
-
vs
Bosch ICON vs Rain-X Latitude
48 owner posts name both
-
vs
Bosch ICON vs Bosch MicroEdge
17 owner posts name both
-
vs
Bosch ICON vs Bosch FOCUS
16 owner posts name both
Where the 1991 Mercury Grand Marquis sits
Wiper sizes for every Mercury Grand Marquis range in our data.
1994–2011
- Driver
- 22"
- Passenger
- 22"
- Driver
- 22"
- Passenger
- 22"
1991
1979–1990
- Driver
- 18" or 22"
- Passenger
- 18" or 22"
- Driver
- 18"
- Passenger
- 18"
| Year | Driver | Passenger | Arm | Page |
|---|---|---|---|---|
| 1993 | 22" | 22" | Side Pin (1/4") | |
| 1992 | 22" | 22" | Side Pin (1/4") | |
| 1991 | 18"or 22" | 18"or 22" | Side Pin (3/16") | This page |
| 1990 | 18" | 18" | Side Pin (3/16") | |
| 1989 | 18" | 18" | Side Pin (3/16") | |
| 1988 | 18" | 18" | Side Pin (3/16") | |
| 1987 | 18" | 18" | Side Pin (3/16") | |
| 1986 | 18" | 18" | Side Pin (3/16") | |
| 1985 | 18" | 18" | Side Pin (3/16") | |
| 1984 | 18" | 18" | Side Pin (3/16") | |
| 1983 | 18" | 18" | Side Pin (3/16") | |
| 1982 | 18" | 18" | Side Pin (3/16") | |
| 1981 | 18" | 18" | Side Pin (3/16") | |
| 1980 | 18" | 18" | Side Pin (3/16") | |
| 1979 | 18" | 18" | Side Pin (3/16") |
Good to know
Two lengths listed
Our data lists two possible blade lengths for one spot on this car. Measure your current blade to see which one to buy.
Check against your old blades
Measure the rubber strip from end to end. It should match 18" + 22".
About this data
Fit data comes from one source so far; we're cross-checking every size against more sources. Consecutive model years with identical blades share one page.
How to fit your new blades
Step-by-step fitting for this arm type is on its way. The adapter chart inside the blade's box shows which adapter to use.
1991 Mercury Grand Marquis wiper FAQ
Quick answers about this car.
What size wipers fit a 1991 Mercury Grand Marquis?
The 1991 Mercury Grand Marquis takes 18" or 22" driver-side and 18" or 22" passenger-side wiper blades. The arm uses a Side Pin (3/16") connector.
What connector does the Mercury Grand Marquis wiper arm use?
Side Pin (3/16"). Most replacement blades include an adapter for it, so check the adapter chart in the package.
Can I use a wiper blade one size longer or shorter?
Stick with the listed sizes. A longer blade can hit the windshield frame or the other blade, while a shorter one leaves an unwiped gap. If your old blades don’t match our sizes, measure them end to end.
How often should I replace my wiper blades?
Most drivers change them every 6 to 12 months. Swap them sooner if they start to streak, chatter, or miss spots.