Subaru / Toyota 2.0L & 2.4L Boxer DIT / D-4S (FA20D / FA20F / FA24D / FA24F) Diesel Injector
Cross-Reference & Technical Specs
Authoritative technical specifications, verified Bosch part numbers, control valve stamping codes, nozzle spray orifices, and hold-down tightening torque for the Subaru diesel engine family.
All Verified Part Numbers for Subaru / Toyota 2.0L & 2.4L Boxer DIT / D-4S (FA20D / FA20F / FA24D / FA24F)
The following 5 common-rail injector assemblies are calibrated for this engine family. Click any SKU to view individual test bench flow curves, sister cross-references, and vehicle applications.
Integrated PWM Fuel Metering Spill Control SolenoidNozzle Code: See Product DetailPrecision High-Speed Solenoid Multi-Hole NozzleNozzle Code: See Product DetailIntegrated High-Speed Flow Control Spill ValveNozzle Code: See Product DetailIntegrated PWM Fuel Metering Spill Control SolenoidNozzle Code: See Product DetailIntegrated PWM Fuel Metering Spill Control SolenoidNozzle Code: See Product Detail| Part Number (SKU) | Primary OE Reference | Control Valve | Nozzle Code |
|---|---|---|---|
| 16625-AA041, 16625-AA042 | Integrated PWM Fuel Metering Spill Control Solenoid | See Product Detail | |
| SU003-08670, 297500-1430 | Precision High-Speed Solenoid Multi-Hole Nozzle | See Product Detail | |
| 16625AA000, HUP0044 | Integrated High-Speed Flow Control Spill Valve | See Product Detail | |
| 16600-JB00A, 23209-46010, FJ1196 | Integrated PWM Fuel Metering Spill Control Solenoid | See Product Detail | |
| 16625-AA011, HPP0020, GDP502 | Integrated PWM Fuel Metering Spill Control Solenoid | See Product Detail |
Verified Vehicle Compatibility
| Make / Manufacturer | Vehicle Model & Platform | Engine Specification | Model Years |
|---|---|---|---|
| Subaru | WRX 2.0T | Subaru / Toyota 2.0L & 2.4L Boxer DIT / D-4S (FA20D / FA20F / FA24D / FA24F) | 2015-2021 |
| Subaru | Forester XT | Subaru / Toyota 2.0L & 2.4L Boxer DIT / D-4S (FA20D / FA20F / FA24D / FA24F) | 2014-2018 |
| Subaru | Levorg 2.0 GT | Subaru / Toyota 2.0L & 2.4L Boxer DIT / D-4S (FA20D / FA20F / FA24D / FA24F) | 2014-2020 |
| Subaru | BRZ ZD8 | 2.4L Boxer FA24D 173kW | 2022-2024 |
| Toyota | GR86 ZN8 | 2.4L Boxer FA24D 173kW | 2022-2024 |
| Subaru | WRX VA | Subaru / Toyota 2.0L & 2.4L Boxer DIT / D-4S (FA20D / FA20F / FA24D / FA24F) | 2015-2021 |
| Subaru | Forester XT SJ | Subaru / Toyota 2.0L & 2.4L Boxer DIT / D-4S (FA20D / FA20F / FA24D / FA24F) | 2014-2018 |
| Subaru | Ascent WN | Subaru / Toyota 2.0L & 2.4L Boxer DIT / D-4S (FA20D / FA20F / FA24D / FA24F) | 2019-2024 |
Installation, Tightening Torque & Re-torque Protocol
Strict torque compliance is mandatory on Subaru / Toyota 2.0L & 2.4L Boxer DIT / D-4S (FA20D / FA20F / FA24D / FA24F) common-rail cylinder heads. Over-torquing stretches the injector body or strips the head clamping threads, while under-torquing allows combustion blow-by past the copper sealing washer:
- Hold-down clamp bolt: 12 N·m (cold state). Always clean the cylinder head recess with an injector seat reamer.
- High-pressure rail flare nut: 25-30 N·m using a dedicated 17 mm line wrench.
- Return leak-off banjo bolt: 9-12 N·m with fresh copper washers on both sides of the banjo union.
After fitting replacement injectors on Subaru / Toyota 2.0L & 2.4L Boxer DIT / D-4S (FA20D / FA20F / FA24D / FA24F), generate or program the cylinder-specific IMA calibration code into the engine ECU using an OEM-level scan tool (Bosch KTS, Renault CLIP, or VAG-COM) to prevent cylinder power imbalance and rough idle.
Technical Diagnostics FAQ for Subaru / Toyota 2.0L & 2.4L Boxer DIT / D-4S (FA20D / FA20F / FA24D / FA24F)
What DTC fault codes indicate a failing injector on Subaru / Toyota 2.0L & 2.4L Boxer DIT / D-4S (FA20D / FA20F / FA24D / FA24F)?
The most frequent fault codes are P0201 through P0204 (Injector Circuit Malfunction on Cylinders 1-4), P2146/P2149 (Injector Group Supply Voltage Error), and P0087 (Fuel Rail Pressure Low due to excessive internal leak-off). Measure solenoid coil resistance across the pins (0.5-1.5 Ω) and perform a graduated-bottle dynamic leak-back test to pinpoint the leaking cylinder.
Can sister SKUs within the Subaru / Toyota 2.0L & 2.4L Boxer DIT / D-4S (FA20D / FA20F / FA24D / FA24F) family be interchanged?
Not unless explicitly confirmed on the vehicle build plate. While sister SKUs share the same physical outer envelope and Integrated PWM Fuel Metering Spill Control Solenoid control valve, they differ in nozzle spray orifice angle and factory IMA flow calibration. Mixing sister SKUs on the same engine block can trigger rough idle, elevated exhaust gas temperatures (EGT), and MOT emissions failure.
Which specific Bosch injectors fit the Subaru / Toyota 2.0L & 2.4L Boxer DIT / D-4S (FA20D / FA20F / FA24D / FA24F) engine?
The verified genuine Bosch common-rail injectors engineered for the Subaru / Toyota 2.0L & 2.4L Boxer DIT / D-4S (FA20D / FA20F / FA24D / FA24F) engine family are:
- Bosch 16625-AA040 Common Rail Injector → (OE: 16625-AA041, 16625-AA042) — Control Valve: Integrated PWM Fuel Metering Spill Control Solenoid,
- Bosch 16611AA810 Common Rail Injector → (OE: SU003-08670, 297500-1430) — Control Valve: Precision High-Speed Solenoid Multi-Hole Nozzle,
- Bosch 16625AA040 Common Rail Injector → (OE: 16625AA000, HUP0044) — Control Valve: Integrated High-Speed Flow Control Spill Valve,
- Bosch SU003-00417 Common Rail Injector → (OE: 16600-JB00A, 23209-46010, FJ1196) —
- Bosch 16625-AA010 Common Rail Injector → (OE: 16625-AA011, HPP0020, GDP502) —