HomeAir and Fuel Delivery > Fuel Injection System and Related ComponentsSpectra TB1155 Fuel Injection Throttle Body Assembly
Part #: TB1155

Spectra TB1155 Fuel Injection Throttle Body Assembly

⚙️ 48 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: INFINITI and Nissan, Armada, NV2500, NV3500, Pathfinder, Pathfinder Armada, QX56, and TITAN
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Reliable Fuel Injection Throttle Body Assembly for Nissan and Infiniti

The Spectra TB1155 Fuel Injection Throttle Body Assembly is designed to restore proper throttle response and fuel delivery for select Nissan and Infiniti vehicles. Engineered to meet OEM specifications, this throttle body assembly ensures consistent performance for your Armada, Pathfinder, QX56, TITAN, and NV series trucks.

  • Direct replacement for Nissan and Infiniti throttle body assemblies
  • Compatible with Armada, Pathfinder, QX56, TITAN, NV2500, and NV3500 models
  • Manufactured to precise OEM standards for fit and function
  • Part number TB1155 for easy identification and ordering
  • Improves throttle response and fuel injection efficiency

Product Details and Compatibility

The Spectra TB1155 throttle body assembly is a critical component in the fuel injection system, regulating air intake to the engine for optimal combustion. This part is specifically compatible with Nissan Armada, Pathfinder, Pathfinder Armada, QX56, TITAN, NV2500, and NV3500 models. Designed to meet or exceed factory specifications, the TB1155 ensures proper fitment and reliable operation. Using this throttle body assembly helps maintain engine performance and fuel efficiency by accurately controlling airflow based on throttle input.

Common Applications and Problem Resolution

  • Restores proper throttle response and engine idle stability
  • Resolves rough idling or stalling issues related to throttle body malfunction
  • Addresses check engine light codes related to throttle position sensor or airflow irregularities
  • Improves fuel injection system performance and engine acceleration
  • Eliminates hesitation or surging during acceleration

Installation Notes and Tips

Installation of the Spectra TB1155 throttle body assembly should be performed by a qualified technician familiar with Nissan and Infiniti fuel injection systems. Ensure all electrical connectors and vacuum lines are properly reattached. It is recommended to clean the throttle body mounting surface before installation to prevent air leaks. After installation, a throttle body relearn procedure may be necessary to reset the engine control module for optimal performance.

Quality Assurance and Warranty

Manufactured by Spectra, the TB1155 throttle body assembly undergoes rigorous quality control to meet OEM standards. While specific warranty details are not provided, Spectra parts typically come with a limited warranty against defects in materials and workmanship. Refer to the product documentation or contact the supplier for exact warranty terms.

This part fits 48 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2017NissanNV25005.6LV8N/A
2017NissanNV35005.6LV8N/A
2016NissanNV25005.6LV8N/A
2016NissanNV35005.6LV8N/A
2015NissanArmada5.6LV8N/A
2015NissanNV25005.6LV8N/A
2015NissanNV35005.6LV8N/A
2015NissanTITAN5.6LV8N/A
2014NissanArmada5.6LV8N/A
2014NissanNV25005.6LV8N/A
2014NissanNV35005.6LV8N/A
2014NissanTITAN5.6LV8N/A
2013NissanArmada5.6LV8N/A
2013NissanNV25005.6LV8N/A
2013NissanNV35005.6LV8N/A
2013NissanTITAN5.6LV8N/A
2012NissanArmada5.6LV8N/A
2012NissanNV25005.6LV8N/A
2012NissanNV35005.6LV8N/A
2012NissanPathfinder5.6LV8N/A
2012NissanTITAN5.6LV8N/A
2011NissanArmada5.6LV8N/A
2011NissanPathfinder5.6LV8N/A
2011NissanTITAN5.6LV8N/A
2010INFINITIQX565.6LV8N/A
2010NissanArmada5.6LV8N/A
2010NissanPathfinder5.6LV8N/A
2010NissanTITAN5.6LV8N/A
2009INFINITIQX565.6LV8N/A
2009NissanArmada5.6LV8N/A
2009NissanPathfinder5.6LV8N/A
2009NissanTITAN5.6LV8N/A
2008INFINITIQX565.6LV8N/A
2008NissanArmada5.6LV8N/A
2008NissanPathfinder5.6LV8N/A
2008NissanTITAN5.6LV8N/A
2007INFINITIQX565.6LV8N/A
2007NissanArmada5.6LV8N/A
2007NissanTITAN5.6LV8N/A
2006INFINITIQX565.6LV8N/A
2006NissanArmada5.6LV8N/A
2006NissanTITAN5.6LV8N/A
2005INFINITIQX565.6LV8N/A
2005NissanArmada5.6LV8N/A
2005NissanTITAN5.6LV8N/A
2004INFINITIQX565.6LV8N/A
2004NissanPathfinder Armada5.6LV8N/A
2004NissanTITAN5.6LV8N/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

1012161197S000161197S00B161197S00D161197S00F6700126E0012977323S20181XTP670013

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.