2021 Toyota 4Runner Specs
3 powertrain configurations on federal record for the 2021 Toyota 4Runner: 4.0L 6-cyl Regular Gasoline, in Rear-Wheel Drive and Part-time 4-Wheel Drive and All-Wheel Drive, rated up to 17 MPG combined by the EPA.
Source: EPA federal records (fueleconomy.gov) · Updated 2026-10-26 · By CarWhere Research
| Engine | Transmission | Drivetrain | City | Highway | Combined |
|---|---|---|---|---|---|
| 4.0L 6-cyl Regular Gasoline | Automatic (S5) | Rear-Wheel Drive | 16 | 19 | 17 |
| 4.0L 6-cyl Regular Gasoline | Automatic (S5) | Part-time 4-Wheel Drive | 16 | 19 | 17 |
| 4.0L 6-cyl Regular Gasoline | Automatic (S5) | All-Wheel Drive | 16 | 19 | 17 |
4Runner by year
Buying a used 4Runner? Specs are the easy half.
Check which 4Runner years to avoid (federal complaint and recall records), see the live 4Runner value by year, then check the specific car: the Full VIN Report shows that VIN's factory build, recall record, and market history before you pay for it.
Frequently asked questions
What engines does the 2021 Toyota 4Runner have?
One powertrain on federal record: 4.0L 6-cyl Regular Gasoline, offered with Automatic (S5) and Rear-Wheel Drive or Part-time 4-Wheel Drive or All-Wheel Drive. The full per-configuration table is above.
What gas mileage does the 2021 Toyota 4Runner get?
EPA combined ratings run 17–17 MPG depending on configuration — the table above shows city/highway/combined for each engine, transmission, and drivetrain.
Is 2021 a good year for the Toyota 4Runner?
Specs don't answer that — the federal complaint and recall record does. See the Toyota 4Runner year-by-year reliability verdicts at carwhere.com/research/years-to-avoid/toyota/4runner, built from NHTSA data.
How do I get the specs for my exact VIN?
These are the federal-record configurations for the 2021 Toyota 4Runner overall. For one specific vehicle — its exact engine, trim, factory options, and original window sticker — decode the 17-character VIN free at carwhere.com/tools/vin-decoder.
Where does this data come from?
The U.S. EPA's public vehicle dataset (fueleconomy.gov) — the federal record of every US-market configuration since 1984 — refreshed 2026-10-26. Public-domain data; republish with attribution to CarWhere (carwhere.com).