Hyundai / Kia 2.0L T-GDI & 2.4L GDI Theta II (G4KH / G4KJ) 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 Hyundai diesel engine family.
All Verified Part Numbers for Hyundai / Kia 2.0L T-GDI & 2.4L GDI Theta II (G4KH / G4KJ)
The following 6 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 Normally Open 12V Pulse-Width Modulated SCVNozzle Code: See Product DetailIntegrated High-Speed Pulse-Width Modulated Metering ValveNozzle Code: See Product DetailIntegrated Normally Open 12V Pulse-Width Modulated SCVNozzle Code: See Product DetailIntegrated Normally Open 12V Pulse-Width Modulated SCVNozzle Code: See Product DetailIntegrated Normally Open 12V Pulse-Width Modulated SCVNozzle Code: See Product DetailIntegrated Normally Open 12V Pulse-Width Modulated SCVNozzle Code: See Product Detail| Part Number (SKU) | Primary OE Reference | Control Valve | Nozzle Code |
|---|---|---|---|
| 35320-2G730, 35320-2G700, 0261520282 | Integrated Normally Open 12V Pulse-Width Modulated SCV | See Product Detail | |
| 35320-2G720, 35320-2G730, GDP206 | Integrated High-Speed Pulse-Width Modulated Metering Valve | See Product Detail | |
| 35310-2GGA0, FJ1189, 842-12401 | Integrated Normally Open 12V Pulse-Width Modulated SCV | See Product Detail | |
| 0261520307, HM10027, GDP211 | Integrated Normally Open 12V Pulse-Width Modulated SCV | See Product Detail | |
| 0261520312, HM10028, GDP212 | Integrated Normally Open 12V Pulse-Width Modulated SCV | See Product Detail | |
| GDP228 | Integrated Normally Open 12V Pulse-Width Modulated SCV | See Product Detail |
Verified Vehicle Compatibility
| Make / Manufacturer | Vehicle Model & Platform | Engine Specification | Model Years |
|---|---|---|---|
| Hyundai | Sonata 2.4L GDI | Hyundai / Kia 2.0L T-GDI & 2.4L GDI Theta II (G4KH / G4KJ) | 2011-2019 |
| Kia | Optima K5 2.4L GDI | Hyundai / Kia 2.0L T-GDI & 2.4L GDI Theta II (G4KH / G4KJ) | 2011-2020 |
| Hyundai | Santa Fe Sport 2.4L GDI | Hyundai / Kia 2.0L T-GDI & 2.4L GDI Theta II (G4KH / G4KJ) | 2013-2018 |
| Hyundai | Sonata | Hyundai / Kia 2.0L T-GDI & 2.4L GDI Theta II (G4KH / G4KJ) | 2011-2019 |
| Kia | Optima | Hyundai / Kia 2.0L T-GDI & 2.4L GDI Theta II (G4KH / G4KJ) | 2011-2020 |
| Hyundai | Santa Fe Sport | Hyundai / Kia 2.0L T-GDI & 2.4L GDI Theta II (G4KH / G4KJ) | 2013-2018 |
Installation, Tightening Torque & Re-torque Protocol
Strict torque compliance is mandatory on Hyundai / Kia 2.0L T-GDI & 2.4L GDI Theta II (G4KH / G4KJ) 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: 13 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 Hyundai / Kia 2.0L T-GDI & 2.4L GDI Theta II (G4KH / G4KJ), 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 Hyundai / Kia 2.0L T-GDI & 2.4L GDI Theta II (G4KH / G4KJ)
What DTC fault codes indicate a failing injector on Hyundai / Kia 2.0L T-GDI & 2.4L GDI Theta II (G4KH / G4KJ)?
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 Hyundai / Kia 2.0L T-GDI & 2.4L GDI Theta II (G4KH / G4KJ) family be interchanged?
Not unless explicitly confirmed on the vehicle build plate. While sister SKUs share the same physical outer envelope and Integrated Normally Open 12V Pulse-Width Modulated SCV 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 Hyundai / Kia 2.0L T-GDI & 2.4L GDI Theta II (G4KH / G4KJ) engine?
The verified genuine Bosch common-rail injectors engineered for the Hyundai / Kia 2.0L T-GDI & 2.4L GDI Theta II (G4KH / G4KJ) engine family are:
- Bosch 35320-2G720 Common Rail Injector → (OE: 35320-2G730, 35320-2G700, 0261520282) — Control Valve: Integrated Normally Open 12V Pulse-Width Modulated SCV,
- Bosch 35320-2G700 Common Rail Injector → (OE: 35320-2G720, 35320-2G730, GDP206, HM10014) — Control Valve: Integrated High-Speed Pulse-Width Modulated Metering Valve,
- Bosch 35310-2G700 Common Rail Injector → (OE: 35310-2GGA0, FJ1189, 842-12401) —
- Bosch 35320-2GGA0 Common Rail Injector → (OE: 0261520307, HM10027, GDP211, 35320-2GGA1) —
- Bosch 35320-2GTA0 Common Rail Injector → (OE: 0261520312, HM10028, GDP212, 35320-2G700) —
- Bosch 35320-2G740 Common Rail Injector → (OE: GDP228) —