Spectra TB1042 Fuel Injection Throttle Body Assembly - Left

Spectra TB1042 Throttle Body Assembly

The Spectra TB1042 fuel injection throttle body assembly is built for electronic throttle control applications that require OE-level fit and function. It is a direct replacement for select Nissan and INFINITI models, including 370Z, 350Z, G37, Q50, and QX50 applications with left-side fitment.

Engineered and tested to meet original equipment requirements, this throttle body assembly helps restore proper air management at the intake for smoother throttle response and consistent drivability. The TB1042 is a practical replacement when the original unit is worn, contaminated, or no longer operating correctly.

Key Features

• Electronic fuel injection throttle body assembly for OE-style replacement
• Built to meet or exceed the performance of the original equipment it replaces
• Direct-fit application for select Nissan and INFINITI left-side throttle body locations
• Fits 2007-2020 Nissan and INFINITI performance and luxury platforms
• Part number TB1042 for easy identification and ordering

Vehicle Fitment

• Fits 2009-2020 Nissan 370Z, left.
• Fits 2014-2019 INFINITI Q70, left.
• Fits 2015-2019 INFINITI Q70L, left.
• Fits 2014-2018 INFINITI Q50, left.
• Fits 2014-2017 INFINITI QX50, left.
• Fits 2014-2017 INFINITI QX70, left.
• Fits 2014-2016 INFINITI Q60, left.
• Fits 2015 INFINITI Q40, left.
• Fits 2013 INFINITI EX37, left.
• Fits 2013 INFINITI FX37, left.
• Fits 2008-2013 INFINITI G37, left.
• Fits 2012-2013 INFINITI M35h, left.
• Fits 2008-2012 INFINITI EX35, left.
• Fits 2009-2012 INFINITI FX35, left.
• Fits 2011 INFINITI M37, left.
• Fits 2009-2010 INFINITI M35, left.
• Fits 2007-2009 Nissan 350Z, left.
• Fits 2007-2008 INFINITI G35, left.

Common Replacement Reasons

• Throttle response that feels delayed or inconsistent
• Idle quality problems caused by throttle body wear or contamination
• Electronic throttle control faults tied to the intake air metering path
• Driveability issues on Nissan 370Z, 350Z, and INFINITI VQ-platform vehicles
• Need for a direct replacement throttle body assembly after original unit failure

Installation Notes

Verify left-side application and match the part number before installation. For best results, inspect the intake tract, electrical connector, and related sensors for contamination or damage before replacing the throttle body. After installation, follow the vehicle manufacturer’s relearn or calibration procedure if required.

Quality Assurance

Spectra Premium throttle body assemblies are developed and rigorously tested to meet OE requirements. This part cross-references Hitachi Automotive ETB0005 and Standard Ignition S20055 for the same application.