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TD05 20G turbocharger for Subaru Impreza WRX/STI
The new TD05 20G turbocharger is designed for the EJ20 and EJ25 engines used in the 2002–2006 Subaru Impreza WRX and STI. According to source data, the design includes oil and liquid cooling, an external wastegate, and a wet float/journal bearing.
Before purchasing, compare the factory turbocharger type, ports, and bolt pattern. WRX Wagons and automatic sedans used the TD04 turbochargers, while manual WRX sedans, including STI versions, were equipped with the TD05 model. Replacing a TD04 with a TD05 turbocharger may require modifications to the connections, bolts, or fasteners.
Technical specifications
| Parameter | Value |
|---|---|
| Type | TD05 20G, upgraded turbocharger |
| Application | Subaru Impreza WRX/STI, EJ20/EJ25 engines, 2002–2006 |
| Exhaust outlet flange | 5 screws |
| Exhaust gas inlet flange | 3 screws |
| Turbine housing | 7 cm² |
| Turbine trim | 76.4 |
| Turbine wheel inducer diameter | 56 mm |
| Turbine wheel exducer diameter | 48.96 mm |
| Compressor Trim | 59.8 |
| Compressor wheel inducer diameter | 52.6 mm |
| Compressor exducer wheel diameter | 67.9 mm |
| Compressor housing inlet, outer diameter | 57.8 mm |
| Compressor housing inlet, inside diameter | 53.62 mm |
| Compressor housing outlet, outer diameter | 51.2 mm |
| Compressor housing outlet, inside diameter | 41.2 mm |
| Oil supply connection | M10 × 1.5 |
| Oil return connection | M15 and 2 × M6H |
| Fluid connections | M14 × 1.5 |
| Wastegate | Yes |
| Cooling | Oil and liquid |
| Bearing | Wet float/journal bearing |
| Thrust bearing | 270° |
| Declared power | Up to 380 HP, according to source data |
| Condition | New |
Materials and inspection according to the offer specifications
- Turbine housing: QT450-10 ductile iron, declared temperature resistance up to 700°C.
- Turbine wheel: K418 steel alloy, declared oxidation and temperature resistance up to 900°C.
- Compressor housing: ZL104 aluminum.
- Compressor wheel: cast aluminum blades.
- The source data shows a balance test using the TURBOTECHNICS VSR3.
Dimensions and weight
- Product dimensions: length 29 cm, width 27 cm, height 23 cm.
- Product weight: 7480 g.
- Package dimensions: 30 × 28 × 24 cm.
- Package weight: 7650 g.
OEM/OE numbers
No confirmed OEM/OE number in source data.
Important assembly information
Before purchasing, please confirm compatibility with the original turbocharger, body type, gearbox, and connections. Professional installation is recommended.Before installing a new turbocharger, the cause of the failure of the previous one must be determined and eliminated, for example, insufficient lubrication, a foreign body in the intake system or faulty crankcase ventilation.
Helpful information before purchasing
This TD05 20G turbocharger is designed for 2002-2006 Subaru Impreza WRX/STI models with EJ20 or EJ25 engines. It's especially important to check if your car has the TD05 system. WRX Wagons and automatic sedans used the TD04, and using the TD05 instead of the TD04 may require modifications to the connections, bolts, and mounts.
The most important information
- Turbocharger type: TD05 20G.
- Application: Subaru Impreza WRX/STI, EJ20/EJ25, years 2002–2006.
- The exhaust flange has 5 bolts and the intake flange has 3 bolts.
- Cooling is by oil and liquid; the turbocharger has a wastegate.
- No confirmed OEM/OE number in the product data.
Contents of the set
This offer applies to the TD05 20G turbocharger. The detailed scope of additional mounting components has not been confirmed in the source data and requires verification prior to purchase.
Frequently asked questions
How do I check if a part fits?
Please compare engine model, year, WRX/STI trim, body style, and transmission, as well as the original turbocharger type, flanges, ports, and mounting points. Modifications may be required if swapping a TD04 to a TD05.
Is the product ready for assembly?
The source does not confirm the completeness of all assembly components. Installation should be performed by a specialist, and the cause of the previous turbocharger failure should be identified and corrected before operation.
Does the offer include a complete set?
The TD05 20G turbocharger is confirmed. Additional kit components are not listed in the source data.
Why is it worth buying from Multigenus?
- Ships from European warehouse for selected offers
- Final price within the EU, excluding customs and import surcharges
- 14 days to return in accordance with EU law
- Pre- and post-purchase support
- The product is described in a way that makes it easier to choose the right variant