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2020 · Tesla · 1st gen
2020 Tesla Model Y parts sizes
What the official 2020 Tesla Model Y owner's manual prints for replacement parts: wipers and battery. Every value below is copied from the manual.
- wipers
- battery
- 1Wipers 26" + 20"
- 2Battery Lead-acid 45 Ah 12
- Battery
- Lead-acid 45 Ah 12 V, or lithium-ion 6.9 Ah (5-seater), depending on build
2020 Tesla Model Y owner's manual
Source: the official 2020 Model Y owner's manual (the maker's web edition). Tesla publishes one manual for the 2020–2024 Model Y, so these values apply to all of those model years.
Wiper blades
| Position | Printed | Length | Blade size sold | Manual |
|---|---|---|---|---|
| Driver | 650 mm | 650 mm / 25.6 in | 26 in | web page |
| Passenger | 500 mm | 500 mm / 19.7 in | 20 in | web page |
Battery
| Printed | BCI group | Notes | Manual |
|---|---|---|---|
| Lead-acid 45 Ah 12 V, or lithium-ion 6.9 Ah (5-seater), depending on build | not printed | manual lists both |
How the 2020 compares with nearby years
Against the 2025 Model Y: The wiper blade lengths is the same in both manuals.
The 2020 Model Y belongs to the 1st gen, which began with the 2020 model year (2025 'Juniper' refresh (N.A. from Mar 2025): full-width front light bar and light-bar taillights, new nose; Standard trim (Oct 2025) drops front light bar); generation dates. Parts often carry over within a generation, but the manual for your exact model year is the one to trust.
What the manual does not print
The 2020 Tesla Model Y owner's manual does not list bulbs, filters and oil sizes; many lamps on this model are LED assemblies that are replaced as a unit by a dealer.
Buying the parts for a 2020 Model Y
- Wipers: ask for a 26-inch driver blade and a 20-inch passenger blade. The manual's 650 mm is 25.6 inches exactly; blade boxes round to the 25 mm trade step. Check that the new blade's connector matches the arm on the Model Y.
- Battery: the manual prints Lead-acid 45 Ah 12 V, or lithium-ion 6.9 Ah (5-seater), depending on build. Match the cold cranking amps on the old label or higher, and keep the terminals on the same sides.
Check it on your car
Trim, engine and lighting package change some of these parts, so match the row that names your engine or trim. Before you buy, compare the number printed on the old part with the table above. See how this site reads manuals.