Toyota A25A-FXS Specs: 87.5 x 103.4 mm (3.4449 x 4.0709 in), 208-320 hp

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Toyota A25A-FXS specs: 2.5L (152 ci) 4-cylinder, 87.5 x 103.4 mm (3.4449 x 4.0709 in) bore and stroke, 14:1 compression. Rated 208-320 hp, 2018–2026.

The Toyota A25A-FXS is undersquare — the 4.0709" stroke exceeds the 3.4449" bore by 15.4% — a layout that trades peak RPM for leverage and torque low in the range. The 4.0709" stroke puts mean piston speed at 4,000 ft/min around 5,900 RPM, which is where a production bottom end is generally considered at its limit. Each of the 4 cylinders displaces 38.0 ci (623 cc).

14:1 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 4 engines in the Toyota 152ci family, all of them 152 ci — the differences between them are in compression, heads and rating, not displacement. 43 factory variants share these dimensions, rated from 208 to 320 hp across 2018–2026.

Dimensions

Displacement152 ci / 2.5 L
Bore3.4449"
Stroke4.0709"
Cylinders4
ConfigurationI4
Compression ratio14:1
Bore/stroke ratio0.846

Construction

Block materialaluminum
Head materialaluminum
ValvetrainDOHC
Fuel typegas
Advertised HP208–320 hp
Years2018–2026

Factory ratings by year

YearVersionHP @ rpmTorque @ rpmComp.
2018A25A-FXS net208—14:1
2019A25A-FXS net208—14:1
2019A25A-FXS net215—14:1
2019A25A-FXS net219—14:1
2020A25A-FXS net208—14:1
2020A25A-FXS net215—14:1
2020A25A-FXS net219—14:1
2020A25A-FXS net243——
2021A25A-FXS net208—14:1
2021A25A-FXS net215—14:1
2021A25A-FXS net219—14:1
2021A25A-FXS net243——
2021A25A-FXS net245——
2021A25A-FXS net302——
2022A25A-FXS net208—14:1
2022A25A-FXS net215—14:1
2022A25A-FXS net219—14:1
2022A25A-FXS net243——
2022A25A-FXS net245——
2022A25A-FXS net302——
2023A25A-FXS net208—14:1
2023A25A-FXS net219—14:1
2023A25A-FXS net243——
2023A25A-FXS net245——
2023A25A-FXS net302——
2024A25A-FXS net208—14:1
2024A25A-FXS net219—14:1
2024A25A-FXS net243——
2024A25A-FXS net245——
2024A25A-FXS net302——

Factory specification sheet.

What these numbers mean

Bore/stroke character0.846 — undersquare — stroke exceeds bore, which favours low-end torque
Mean piston speed at 6,000 RPM4,071 ft/min — in the range typical of performance street engines
Displacement per cylinder38.0 ci
Static compression14:1 — high enough that pump premium or better is normally required

Run the numbers for this engine

Each link opens the calculator with this engine's specs already filled in.

Variants sharing these dimensions (43)

These records share identical bore, stroke, displacement and compression. They differ by model year and factory power rating.

YearAdvertised HPCode
2018208 hpA25A-FXS
2019208 hpA25A-FXS
2019215 hpA25A-FXS
2019219 hpA25A-FXS
2020208 hpA25A-FXS
2020215 hpA25A-FXS
2020219 hpA25A-FXS
2020243 hpA25A-FXS
2021208 hpA25A-FXS
2021215 hpA25A-FXS
2021219 hpA25A-FXS
2021243 hpA25A-FXS
2021245 hpA25A-FXS
2021302 hpA25A-FXS
2022208 hpA25A-FXS
2022215 hpA25A-FXS
2022219 hpA25A-FXS
2022243 hpA25A-FXS
2022245 hpA25A-FXS
2022302 hpA25A-FXS
2023208 hpA25A-FXS
2023219 hpA25A-FXS
2023243 hpA25A-FXS
2023245 hpA25A-FXS
2023302 hpA25A-FXS
2024208 hpA25A-FXS
2024219 hpA25A-FXS
2024243 hpA25A-FXS
2024245 hpA25A-FXS
2024302 hpA25A-FXS
2025219 hpA25A-FXS
2025225 hpA25A-FXS
2025232 hpA25A-FXS
2025243 hpA25A-FXS
2025245 hpA25A-FXS
2025302 hpA25A-FXS
2026225 hpA25A-FXS
2026226 hpA25A-FXS
2026232 hpA25A-FXS
2026236 hpA25A-FXS
2026243 hpA25A-FXS
2026245 hpA25A-FXS
2026320 hpA25A-FXS

What cars have the A25A-FXS?

7 factory vehicles, 2018–2026. Each year opens that model's engine table.

Similar engines

← All Toyota 152ci engines