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Volkswagen EA888 Gen3B specs: 2.0L (121 ci) 4-cylinder, 82.5 x 92.8 mm (3.2480 x 3.6535 in) bore and stroke, 11.65:1 compression. Rated 174 hp, 2018–2022.
The Volkswagen EA888 Gen3B is undersquare — the 3.6535" stroke exceeds the 3.248" bore by 11.1% — a layout that trades peak RPM for leverage and torque low in the range. The 3.6535" stroke puts mean piston speed at 4,000 ft/min around 6,550 RPM, which is where a production bottom end is generally considered at its limit. Each of the 4 cylinders displaces 30.3 ci (496 cc).
11.65:1 on aluminum heads is high for a production gasoline engine; running a ratio like that on pump fuel depends on chamber design and fuel delivery rather than the number alone.
It is one of 31 engines in the EA888 family, the largest at 121 ci. 5 factory variants share these dimensions, rated at 174 hp across 2018–2022.
| Displacement | 121 ci / 2 L |
|---|---|
| Bore | 3.248" |
| Stroke | 3.6535" |
| Cylinders | 4 |
| Configuration | I4 |
| Compression ratio | 11.65:1 |
| Bore/stroke ratio | 0.889 |
| Block material | cast iron |
|---|---|
| Head material | aluminum |
| Valvetrain | DOHC |
| Fuel type | gas |
| Advertised HP | 174 hp |
| Years | 2018–2022 |
| Year | Version | HP @ rpm | Torque @ rpm | Comp. |
|---|---|---|---|---|
| 2018 | EA888 Gen3B net | 174 @ 5000 | 184 lb-ft @ 1500 | 11.65:1 |
| 2019 | EA888 Gen3B net | 174 @ 5000 | 184 lb-ft @ 1500 | 11.65:1 |
| 2020 | EA888 Gen3B net | 174 @ 5000 | 206 lb-ft @ 3000 | 11.65:1 |
| 2021 | EA888 Gen3B net | 174 @ 5000 | 206 lb-ft @ 3000 | 11.65:1 |
| 2022 | EA888 Gen3B net | 174 @ 5000 | 206 lb-ft @ 3000 | 11.65:1 |
Factory specification sheet.
| Bore/stroke character | 0.889 — undersquare — stroke exceeds bore, which favours low-end torque |
|---|---|
| Mean piston speed at 6,000 RPM | 3,654 ft/min — in the range typical of performance street engines |
| Displacement per cylinder | 30.3 ci |
| Static compression | 11.65:1 — high enough that pump premium or better is normally required |
Each link opens the calculator with this engine's specs already filled in.
These records share identical bore, stroke, displacement and compression. They differ by model year and factory power rating.
| Year | Advertised HP | Code |
|---|---|---|
| 2018 | 174 hp | EA888 Gen3B |
| 2019 | 174 hp | EA888 Gen3B |
| 2020 | 174 hp | EA888 Gen3B |
| 2021 | 174 hp | EA888 Gen3B |
| 2022 | 174 hp | EA888 Gen3B |
2 factory vehicles, 2018–2022. Each year opens that model's engine table.