WiperFinder

2021–2023 Western Star 4900EX Wiper Blade Sizes

Model years 2021 to 2023 Sizes from one source so far

Your wiper sizes

Driver 20in 500 mm
Passenger 20in 500 mm

Every Western Star 4900EX from 2021 to 2023 takes these sizes. Any year in this range uses the same wiper blades.

Blades for your Western Star 4900EX

Shop the 20" + 20" pair on Amazon
Driver 20" only Passenger 20" only

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Best wiper blades for the 2021–2023 Western Star 4900EX

Three blade types, each in your sizes.

Budget

Conventional blades

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

In your sizes: 20" + 20"

Check price on Amazon
Our pick

Beam blades

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

In your sizes: 20" + 20"

Check price on Amazon
Aero

Hybrid blades

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

In your sizes: 20" + 20"

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 2021–2023 Western Star 4900EX sits

Wiper sizes for every Western Star 4900EX range in our data.

2021–2023
Driver
20"
Passenger
20"
2020
Driver
20"
Passenger
20"
 2018–2019
Driver
20"
Passenger
20"
 2002–2017
Driver
20"
Passenger
20"
YearDriverPassengerArm
2023 20" 20" — This page
2022 20" 20" — This page
2021 20" 20" — This page
2020 20" 20" J-Hook (9×3 mm)

Good to know

Check against your old blades

Measure the rubber strip from end to end. It should match 20".

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.

2021–2023 Western Star 4900EX wiper FAQ

Quick answers about this car.

What size wipers fit a 2021–2023 Western Star 4900EX?

The 2021–2023 Western Star 4900EX takes 20" driver-side and 20" passenger-side wiper blades.

Do all 2021–2023 Western Star 4900EX model years use the same wipers?

Yes. Every Western Star 4900EX from 2021 to 2023 shares the same blade lengths. If a blade fits one of these years, it fits them all.

What connector does the Western Star 4900EX wiper arm use?

We haven't confirmed the arm type for this car yet. The adapter chart in the blade's box shows which adapter to use.

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.

All makes