Toyota 2.5L Dynamic Force four (A25A-FKS / A25A-FXS): years, specs & known problems
By CarWhere Research · Updated
The A25A is Toyota's 2,487 cc Dynamic Force four-cylinder, first used in the 2018 Camry. The gas A25A-FKS makes 203–206 hp in the Camry and RAV4. The hybrid A25A-FXS runs a 14:1 compression ratio and anchors Toyota's 2.5L hybrids, from 208 system hp in the 2018 Camry Hybrid to 245 hp in the Sienna.
Toyota announced the 2.5L Dynamic Force Engine in December 2016 as the first of its TNGA engines. It has an 87.5 × 103.4 mm bore and stroke (a long stroke of about 1.2 times the bore), D-4S direct and port injection, laser-clad valve seats and electric VVT-iE intake cam timing. Toyota rated thermal efficiency at 40 percent for the gasoline version and 41 percent for the hybrid version, which uses a 14:1 compression ratio instead of 13:1.
The gas A25A-FKS debuted in the 2018 Camry with an eight-speed automatic and went into the 2019 RAV4 at 203 hp. The hybrid A25A-FXS powers the Camry, RAV4, Highlander, Sienna, Grand Highlander and Crown hybrids, with system outputs from 208 to 245 hp, and the fifth-generation hybrid in the 2025 Camry and 2026 RAV4.
2.5L Dynamic Force four (A25A-FKS / A25A-FXS) at a glance
| Engine | Model years | Fuel | Peak hp | Peak torque (lb-ft) | Documented problems | Recalls |
|---|---|---|---|---|---|---|
| A25A-FKS gasoline (202–206 hp) | 2018–present | Gasoline | 206 | 186 | 0 | 0 |
| A25A-FXS hybrid (208–245 system hp) | 2018–present | Gasoline hybrid | 245 | 163 | 0 | 0 |
CarWhere lists 0 documented problems and 0 NHTSA recalls for the 2.5L Dynamic Force four (A25A-FKS / A25A-FXS), each with a source. Part of the Dynamic Force engines (A25A, M20A) family.
A25A-FKS gasoline (202–206 hp)
The non-hybrid 2.5L in the Camry (2018–2024) and RAV4 (2019–2025), paired with an eight-speed automatic.
A25A-FKS gasoline (202–206 hp) specifications
| Specification | Value |
|---|---|
| Engine code | A25A-FKS[4] |
| Displacement | 2,487 cc[5] |
| Bore × stroke | 87.5 × 103.4 mm (3.44 × 4.07 in)[5] |
| Compression ratio | 13:1[5] |
| Injection | D-4S direct and port injection[5] |
| Valve timing | Dual VVT-i with electric VVT-iE on the intake[1] |
| Thermal efficiency (Toyota) | 40 percent[6] |
| Transmission | Eight-speed Direct Shift automatic[2] |
| 2025 Camry LE (EPA) | 2.5 L hybrid[7] |
| 2026 RAV4 (EPA) | 2.5 L hybrid (AV-S6)[8] |
A25A-FKS gasoline (202–206 hp) horsepower and torque by year
| Model years | Application | Horsepower (hp) | Torque (lb-ft) | Source |
|---|---|---|---|---|
| 2018 | CamryToyota launch estimate: 206 hp at 6,600 rpm, 186 lb-ft at 5,000 rpm | 206 | 186 | [1] |
| 2019 | RAV4 | 203 | — | [2] |
| 2021 | Camry (FWD, most grades)203 hp at 6,600 rpm; 184 lb-ft at 5,000 rpm | 203 | 184 | [3] |
| 2021 | Camry XSE (dual exhaust) | 206 | 186 | [3] |
| 2021 | Camry AWD (most grades) | 202 | — | [3] |
"—" means we could not confirm the figure from a primary source.
Which vehicles have the A25A-FKS gasoline (202–206 hp)?
| Model | Model years | Notes |
|---|---|---|
| Camry (gas) | 2018–2024 | 2025 Camry is hybrid-only |
| RAV4 (gas) | 2019–2025 | 2026 RAV4 is hybrid or plug-in hybrid only |
A25A-FXS hybrid (208–245 system hp)
The hybrid version with a 14:1 compression ratio and Atkinson-cycle operation. Outputs below are total system figures, which depend on the motors and drive system in each model.
A25A-FXS hybrid (208–245 system hp) specifications
| Specification | Value |
|---|---|
| Engine code | A25A-FXS[14] |
| Displacement | 2,487 cc (151.8 cu in)[14] |
| Bore × stroke | 87.5 × 103.48 mm[14] |
| Compression ratio | 14:1, Atkinson cycle[2] |
| Thermal efficiency (Toyota) | 41 percent[6] |
| Engine-only output (2018 Camry Hybrid) | 176 hp at 5,700 rpm; 163 lb-ft[1] |
| Other hardware | Electric water pump, electric thermostat and variable oil pump (Highlander Hybrid)[15] |
| 2021 Sienna (EPA) | 2.5 L hybrid, 2WD and AWD[16] |
A25A-FXS hybrid (208–245 system hp) horsepower and torque by year
| Model years | Application | Horsepower (hp) | Torque (lb-ft) | Source |
|---|---|---|---|---|
| 2021 | Camry Hybrid (system)Engine 176 hp and 163 lb-ft plus a 118 hp motor | 208 | — | [3] |
| 2019 | RAV4 Hybrid (system) | 219 | — | [2] |
| 2020 | Highlander Hybrid (system) | 243 | — | [9] |
| 2021 | Sienna (system) | 245 | — | [10] |
| 2024 | Grand Highlander Hybrid (system) | 245 | — | [11] |
| 2025 | Camry, FWD (system)Fifth-generation hybrid system | 225 | — | [12] |
| 2025 | Camry, AWD (system) | 232 | — | [12] |
| 2026 | RAV4 Hybrid, AWD (system)Torque figure is engine only | 236 | 163 | [13] |
"—" means we could not confirm the figure from a primary source.
Which vehicles have the A25A-FXS hybrid (208–245 system hp)?
| Model | Model years | Notes |
|---|---|---|
| Camry Hybrid | 2018–present | THS II through 2024; fifth-generation system from 2025 |
| RAV4 Hybrid | 2019–present | Fifth-generation system from 2026 |
| Highlander Hybrid | 2020–present | |
| Sienna | 2021–present | Hybrid-only |
| Grand Highlander Hybrid | 2024–present | |
| Crown (XLE, Limited) | 2023–2026 | 2027 Crown moves these grades to the fifth-generation system |
2.5L Dynamic Force four (A25A-FKS / A25A-FXS) issues by model
The same engine shows up on these known-issues pages, with model-specific details.
Related Toyota research
Confirm a car really has the 2.5L Dynamic Force four (A25A-FKS / A25A-FXS).
The engine a Toyota left the factory with is part of its build record. The CarWhere Toyota build sheet reconstructs factory colors, options and packages from licensed VIN-level build data — availability is checked free, and it is $9.99 only when detailed build data is found for that VIN.
Frequently asked questions
What is the difference between the A25A-FKS and A25A-FXS?
The FKS is the gasoline version used in non-hybrid Camry and RAV4 models, with a 13:1 compression ratio. The FXS is the hybrid version with a 14:1 compression ratio and Atkinson-cycle operation. Toyota rates their peak thermal efficiency at 40 and 41 percent.
How much horsepower does the Toyota 2.5 make?
The gas version makes 203 hp and 184 lb-ft in most Camry and RAV4 models (206 hp in the Camry XSE). Hybrid system output ranges from 208 hp in the 2021 Camry Hybrid to 245 hp in the Sienna and Grand Highlander Hybrid.
Does the Toyota 2.5 Dynamic Force engine have direct injection?
Yes. It uses D-4S, which combines high-pressure direct injectors with port injectors and switches between them depending on driving conditions.
Which Toyota hybrids use the 2.5L engine?
The Camry Hybrid, RAV4 Hybrid, Highlander Hybrid, Sienna, Grand Highlander Hybrid and Crown XLE and Limited. The 2025 Camry and 2026 RAV4 pair it with the fifth-generation hybrid system.
Is there still a non-hybrid Toyota 2.5?
The Camry went hybrid-only for 2025 and the RAV4 for 2026, so the gas A25A-FKS covers 2018–2024 Camry and 2019–2025 RAV4 models.
Sources
Ratings are Toyota-published figures as cited; descriptions are CarWhere’s own summaries of the sources below. Repair costs appear only where a source states them and vary by shop and region.
- Ready for Launch: The All-New 2018 Toyota Camry — Toyota Motor North America (pressroom.toyota.com)
- All-New 2019 Toyota RAV4 Breaks the Mold for the Segment It Created — Toyota Motor North America (pressroom.toyota.com)
- Clear-Cut Leader: The 2021 Toyota Camry Adds More Variants While Advancing Safety (July 15, 2020) — Toyota Motor North America (pressroom.toyota.com)
- 2020 Toyota Camry Warranty & Maintenance Guide — Toyota Motor Sales, U.S.A. (owner publications)
- New 2.5-liter Direct-injection, Inline 4-cylinder Gasoline Engine (Dynamic Force Engine) — Toyota Motor Corporation (global.toyota)
- Toyota Develops TNGA-based Powertrain Units (Dec. 6, 2016) — Toyota Motor Corporation (global.toyota)
- 2025 Toyota Camry HEV FWD LE, 2.5 L hybrid (fueleconomy.gov vehicle record) — U.S. EPA / DOE (fueleconomy.gov)
- 2026 Toyota RAV4, 2.5 L hybrid (fueleconomy.gov vehicle record) — U.S. EPA / DOE (fueleconomy.gov)
- Toyota's Fourth Generation 2020 Highlander Redesigned from the Ground Up (Dec. 18, 2019) — Toyota Motor North America (pressroom.toyota.com)
- 2021 Toyota Sienna Hits Dealerships This November (Oct. 27, 2020) — Toyota Motor North America (pressroom.toyota.com)
- 2024 Toyota Grand Highlander Touches Down in Driveways This Summer (May 30, 2023) — Toyota Motor North America (pressroom.toyota.com)
- Toyota Camry Goes Exclusively Hybrid Plus a New Look and More Technology — Toyota Motor North America (pressroom.toyota.com)
- The Next Adventure Begins: 2026 RAV4 Arrives this Winter (Oct. 22, 2025) — Toyota Motor North America (pressroom.toyota.com)
- Toyota Highlander Hybrid owner's manual: Maintenance data (A25A-FXS specifications) — Toyota Motor Sales, U.S.A. (owner publications)
- New Toyota Highlander Turbocharged Engine Offers More Torque and Fewer Emissions — Toyota Motor North America (pressroom.toyota.com)
- 2021 Toyota Sienna Hybrid 2WD, 2.5 L (fueleconomy.gov vehicle record) — U.S. EPA / DOE (fueleconomy.gov)
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Independent reference compiled by CarWhere — not affiliated with or endorsed by Toyota Motor Corporation, Toyota Motor North America or any Toyota distributor. Toyota, TRD, i-FORCE MAX, Hybrid Synergy Drive and the model names are trademarks of their owners.