Bosch Fuel Injector Set (8) – Replaces GM 12639221 – Suits Holden VE/VF Commodore 6.0L L76, L77, L98 (62013)

Bosch Fuel Injector Set (8) –  a complete set of eight genuine Bosch injectors designed as a direct replacement for Genuine GM part number 12639221. These injectors are manufactured by Bosch – the original equipment supplier to GM – ensuring precise fuel delivery, spray atomisation, and reliability for Holden’s Gen IV 6.0L V8 engines.

Each injector is engineered to restore factory fuel efficiency, throttle response, and idle quality. This complete 8-piece set is ideal for maintenance, rebuilds, or performance refreshes where consistent flow and balanced operation across all cylinders are essential.

Fitment:

• Holden VE Commodore (2006–2013) – 6.0L V8 L76, L98, L77
• Holden VF Commodore (2013–2017) – 6.0L V8 L77
• HSV variants fitted with 6.0L L76/L98/L77 engines

Replaces: GM 12639221

Specifications:

• Set of 8 Bosch injectors
• Flow Rate: 42 lb/hr @ 400 kPa (factory calibration)
• Connector: EV6 / USCAR plug
• Spray Pattern: Multi-hole fine mist
• Resistance: 12 ohm – high impedance
• Fuel Compatibility: Unleaded, E10, E85

Key Features:

• Genuine Bosch OEM – exact replacement for factory injectors
  
• Restores original performance, idle stability, and throttle response
• Durable construction for longevity under heat and vibration
• Plug-and-play installation – no modification or tuning required when replacing OEM units

Fitment Tip: Always replace injectors as a matched set to maintain even fuel distribution and flow balance. After installation, check for leaks and reset fuel trims for optimal performance.