Engine specifications
| Engine code | A25A-FXS |
|---|---|
| Display name | 2.5 L hybrid Atkinson |
| Displacement | 2487 cm³ · 2.5 L · 151.8 cu·in |
| Bore × stroke | 87.5 × 103.4 mm · 3.44 × 4.07 in |
| Compression ratio | 14.00 : 1 |
| Aspiration | NA |
| Valvetrain | DOHC 16V Atkinson · Dual VVT-i |
| Cylinders / fuel | 4 · hybrid |
Vehicles using this engine4
Engine oil capacity by application4
| Application | Capacity | Viscosity | Spec | Drain |
|---|---|---|---|---|
| Lexus NX II (AZ20) | 4.5 L · 4.8 qt | 0W-16 | API SP / ILSAC GF-6 | 10,000 mi |
| Toyota Highlander IV (XU70) | 4.5 L · 4.8 qt | 0W-16 | API SP / ILSAC GF-6 (Toyota Genuine 0W-16) | 10,000 mi |
| Toyota RAV4 V | 4.5 L · 5.1 qt | 0W-16 | API SP / ILSAC GF-6 (Toyota Genuine 0W-16) | 10,000 mi |
| Toyota Camry (XV70) | 4.4 L · 4.6 qt | 0W-16 | API SP / ILSAC GF-6 | 10,000 mi |
OE part numbers for this engine8
| Part | Number | Brand | Application |
|---|---|---|---|
| air filter | 17801-25030 | Toyota OEM | Toyota Highlander IV (XU70) |
| air filter | 17801-25030 | Toyota OEM | Toyota Camry (XV70) |
| oil filter | 04152-YZZA6 | Toyota OEM | Toyota Highlander IV (XU70) |
| oil filter | 04152-YZZA6 | Toyota OEM | Toyota RAV4 V |
| oil filter | 04152-YZZA6 | Toyota OEM | Toyota Camry (XV70) |
| spark plug | 90919-01290gap 1.10 mm | Toyota OEM (Denso FK20HR-Q11) | Toyota Highlander IV (XU70) |
| spark plug | 90919-01290gap 1.10 mm | Toyota OEM (Denso FK20HR-Q11) | Toyota RAV4 V |
| spark plug | 90919-01290gap 1.10 mm | Toyota OEM (Denso FK20HR-Q11) | Toyota Camry (XV70) |
Frequently asked4
- What is the oil capacity of the A25A-FXS engine?
- The A25A-FXS (2.5 L hybrid Atkinson) engine holds 4.5 L (4.8 US qt) with a new filter. Manufacturer-specified viscosity is 0W-16.
- What oil specification does the A25A-FXS engine use?
- API SP / ILSAC GF-6 viscosity 0W-16. Using a non-spec oil can cause LSPI on direct-injection turbo engines and accelerated cam-chain wear.
- Which vehicles use the A25A-FXS engine?
- The A25A-FXS appears in 4 vehicle generations: Lexus NX II (AZ20); Toyota Highlander IV (XU70); Toyota RAV4 V; Toyota Camry (XV70).
- What spark plug fits the A25A-FXS engine?
- OE spark plug for the A25A-FXS is 90919-01290 (Toyota OEM (Denso FK20HR-Q11)), gap 1.10 mm.
Sharing this engine across vehicles
The A25A-FXS is used in 4 vehicles in our catalogue. Oil capacity, spark plug part number and engine-scoped torque values are identical across all of them; transmission, drive ratio and brake values are not.
Diagnostic trouble codes for the A25A-FXS
Looking up a specific OBD-II diagnostic code on the A25A-FXS? Search autodtcs.com for A25A-FXS codes → Common families covered: