WiperFinder

1978–1987 Pontiac Grand Prix Wiper Blade Sizes

Model years 1978 to 1987 Sizes confirmed by 2 sources

Your wiper sizes

Driver 18in 450 mm
Passenger 18in 450 mm
Side Pin (3/16") connector

Every Pontiac Grand Prix from 1978 to 1987 takes these sizes. Any year in this range uses the same wiper blades.

Blades for your Pontiac Grand Prix

Shop the 18" + 18" pair on Amazon
Driver 18" only Passenger 18" only

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Best wiper blades for the 1978–1987 Pontiac Grand Prix

Three blade types, each in your sizes.

Budget

Conventional blades

  • Metal frame, the classic design
  • Lowest cost, fine on flatter glass

In your sizes: 18" + 18"

Check price on Amazon
Our pick

Beam blades

  • One piece with no frame to ice up
  • Hugs curved modern windshields

In your sizes: 18" + 18"

Check price on Amazon
Aero

Hybrid blades

  • A frame under an aero shell
  • Even pressure with a sleek profile

In your sizes: 18" + 18"

Check price on Amazon

Blades in your sizes

Each button opens that blade in your length.

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Compare these blades

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Where the 1978–1987 Pontiac Grand Prix sits

Wiper sizes for every Pontiac Grand Prix range in our data.

1997–2008
Driver
22"
Passenger
22"
 1988–1996
Driver
20"
Passenger
20"
1978–1987
Driver
18"
Passenger
18"
YearDriverPassengerArm
1996 20" 20" Side Pin (1/4")
1995 20" 20" Side Pin (1/4")
1994 20" 20" Side Pin (1/4")
1993 20" 20" Side Pin (1/4")
1992 20" 20" Side Pin (1/4")
1991 20" 20" Side Pin (1/4")
1990 20" 20" Side Pin (1/4")
1989 20" 20" Side Pin (1/4")
1988 20" 20" Side Pin (1/4")
1987 18" 18" Side Pin (3/16") This page
1986 18" 18" Side Pin (3/16") This page
1985 18" 18" Side Pin (3/16") This page
1984 18" 18" Side Pin (3/16") This page
1983 18" 18" Side Pin (3/16") This page
1982 18" 18" Side Pin (3/16") This page
1981 18" 18" Side Pin (3/16") This page
1980 18" 18" Side Pin (3/16") This page
1979 18" 18" Side Pin (3/16") This page
1978 18" 18" Side Pin (3/16") This page

Good to know

Check against your old blades

Measure the rubber strip from end to end. It should match 18".

About this data

Fit data confirmed by 2 independent sources. Model years that share identical blades are grouped on 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.

1978–1987 Pontiac Grand Prix wiper FAQ

Quick answers about this car.

What size wipers fit a 1978–1987 Pontiac Grand Prix?

The 1978–1987 Pontiac Grand Prix takes 18" driver-side and 18" passenger-side wiper blades. The arm uses a Side Pin (3/16") connector.

Do all 1978–1987 Pontiac Grand Prix model years use the same wipers?

Yes. Every Pontiac Grand Prix from 1978 to 1987 shares the same blade lengths and arm type. If a blade fits one of these years, it fits them all.

What connector does the Pontiac Grand Prix 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.

Different car?

Look up the wiper sizes for any car in our data.

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