Wiper sizes › 20 inch
Wiper blade size · 2 models
20-inch wiper blades: which cars use them
8 model years across 2 models (Chevrolet and Tesla) print a wiper length in the owner's manual that is sold as a 20-inch blade. The printed length is 500 mm (19.69 in).
- 1Rear wiper 20" · 500 mm printed
Cars whose manual prints this length
| Model | Position | Printed | Model years |
|---|---|---|---|
| Chevrolet Traverse | Passenger | 50 cm | 2018, 2019, 2020, 2021, 2022, 2023 |
| Tesla Model Y | Passenger | 500 mm | 2020, 2025 |
By position, the 20-inch size is printed 8 times for the passenger side only. The Chevrolet Traverse lists it most often (2018–2023, passenger side).
What it pairs with
- Chevrolet Traverse (2018–2023): 20-inch passenger blade with a 24-inch driver blade.
- Tesla Model Y (2020, 2025): 20-inch passenger blade with a 26-inch driver blade.
Buy front blades as a set of two lengths, not two of the same, unless the manual prints the same length for both sides. A blade one size longer than printed can strike the windshield pillar or overlap the other blade at the top of its sweep.
Which printed lengths count as 20 inches
Blade makers step their sizes in 25 mm increments and label each step as one inch, so a printed length of about 488 to 512 mm is sold as a 20-inch blade. A true 20 inches is 508 mm, slightly longer than the trade size. Manuals print the length in millimetres or centimetres; this page converts each one and rounds to the trade step, the same way the mm-to-inches guide explains.
Before you buy
The manual prints a length, not the arm connector type. Blade boxes list the arm connectors their adapters fit; compare that list with the connector on the old blade before fitting. Rear blades often use a model-specific mount, so match the old rear blade as well as its length. If your trim or model year is not in the table, its manual either prints a different length or prints none, so open your car's page from all cars.
Other sizes with their own page: 12 in · 22 in · 24 in · 26 in. One size down is 12 inches; one size up is 22 inches (among sizes with a page).