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Spectra TB1008 Fuel Injection Throttle Body AssemblyOE Quality 60-Day Returns
Part #: TB1008

Spectra TB1008 Fuel Injection Throttle Body Assembly

173 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Chevrolet, GMC, Hummer, Cadillac, Buick, and Isuzu, Express 1500, Express 2500, Express 3500, Silverado 1500 Classic, Silverado 1500 HD Classic, Silverado 2500 HD Classic, Silverado 3500 Classic, Savana 1500, Savana 2500, Savana 3500, Sierra 1500 Classic, Sierra 1500 HD Classic, Sierra 2500 HD Classic, Sierra 3500 Classic, H2, Escalade, Escalade ESV, Escalade EXT, Avalanche 1500, Silverado 1500, Silverado 1500 HD, Silverado 2500, Silverado 2500 HD, Silverado 3500, Sonora, Suburban 1500, Suburban 2500, Tahoe, Sierra 1500, Sierra 1500 HD, Sierra 2500 HD, Sierra 3500, Yukon, Yukon XL 1500, Yukon XL 2500, Rainier, SSR, Trailblazer EXT, Envoy XL, Envoy XUV, Sierra 2500, and Ascender
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Overview of Spectra Fuel Injection Throttle Body Assembly TB1008

The Spectra TB1008 Fuel Injection Throttle Body Assembly is designed for precise air and fuel delivery in a range of GM and related vehicles. Engineered to meet OEM specifications, this throttle body assembly ensures reliable performance for models including Chevrolet Silverado 1500, GMC Sierra 2500 HD, and Cadillac Escalade.

  • Direct replacement throttle body assembly for fuel injection systems
  • Compatible with multiple GM makes and models including Buick, Cadillac, Chevrolet, GMC, Hummer, and Isuzu
  • Part number TB1008 for accurate identification and fitment
  • Manufactured to meet or exceed OEM standards for durability and performance
  • Supports optimal throttle response and engine efficiency

Detailed Product Description

The Spectra TB1008 throttle body assembly is a critical component in the air and fuel delivery system, controlling the amount of air entering the engine to maintain proper combustion. This assembly is engineered to fit a wide range of vehicles such as the Chevrolet Avalanche 1500, GMC Yukon XL 2500, and Cadillac Escalade EXT. By maintaining precise throttle control, it helps optimize engine performance and fuel economy. The unit is built to OEM specifications, ensuring compatibility and reliable operation within the fuel injection system.

Compatible Vehicles and Applications

This throttle body assembly is compatible with the following makes and models:

  • Buick Ascender
  • Cadillac Escalade, Escalade ESV, Escalade EXT
  • Chevrolet Avalanche 1500, Silverado 1500, Silverado 2500, Silverado 3500, SSR, Suburban 1500, Suburban 2500, Tahoe, Trailblazer EXT
  • GMC Sierra 1500, Sierra 2500, Sierra 3500, Yukon, Yukon XL 1500, Yukon XL 2500, Envoy XL, Envoy XUV, Rainier
  • Hummer H2
  • Isuzu Cheyenne
  • Express 1500, 2500, 3500 and Savana 1500, 2500, 3500

Common Issues Addressed by TB1008 Throttle Body Assembly

  • Irregular or rough engine idling
  • Poor throttle response or hesitation during acceleration
  • Check engine light related to throttle position sensor or air intake
  • Reduced fuel efficiency due to improper air-fuel mixture
  • Engine stalling or surging at low speeds

Installation Notes and Tips

  • Ensure the engine is cool before beginning installation
  • Disconnect the battery to prevent electrical shorts
  • Clean the throttle body mounting surface before installation
  • Verify all electrical connectors and vacuum lines are properly reconnected
  • After installation, perform a throttle body relearn procedure if required by the vehicle’s ECU

Quality Assurance and Warranty

The Spectra TB1008 throttle body assembly is manufactured to meet or exceed OEM quality standards, providing consistent performance and durability. While specific warranty details may vary, Spectra products typically include a limited warranty against defects in materials and workmanship. Refer to the product documentation for exact warranty terms.

This part fits 173 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2007ChevroletExpress 15005.3LV8N/A
2007ChevroletExpress 25006.0LV8GASN/Awith Electronic Throttle Control (KUP)
2007ChevroletExpress 25004.8LV8GASN/Awith Electronic Throttle Control (KUP)
2007ChevroletExpress 35006.0LV8GASN/A
2007ChevroletExpress 35004.8LV8N/Awith Electronic Throttle Control (KUP)
2007ChevroletSilverado 1500 Classic6.0LV8N/A
2007ChevroletSilverado 1500 Classic5.3LV8N/A
2007ChevroletSilverado 1500 Classic4.8LV8N/A
2007ChevroletSilverado 1500 HD Classic6.0LV8N/A
2007ChevroletSilverado 2500 HD Classic6.0LV8GASN/A
2007ChevroletSilverado 3500 Classic6.0LV8N/A
2007GMCSavana 15005.3LV8N/A
2007GMCSavana 25006.0LV8N/Awith Electronic Throttle Control (KUP)
2007GMCSavana 25004.8LV8N/A
2007GMCSavana 35006.0LV8N/Awith Electronic Throttle Control (KUP)
2007GMCSavana 35004.8LV8N/A
2007GMCSierra 1500 Classic6.0LV8GASN/A
2007GMCSierra 1500 Classic5.3LV8N/A
2007GMCSierra 1500 Classic4.8LV8GASN/A
2007GMCSierra 1500 HD Classic6.0LV8N/A
2007GMCSierra 2500 HD Classic6.0LV8GASN/A
2007GMCSierra 3500 Classic6.0LV8GASN/A
2007HummerH26.0LV8N/A
2006CadillacEscalade6.0LV8N/A
2006CadillacEscalade ESV6.0LV8N/A
2006CadillacEscalade EXT6.0LV8N/A
2006ChevroletAvalanche 15005.3LV8N/A
2006ChevroletCheyenne5.3LV8N/A
2006ChevroletExpress 25006.0LV8GASN/Awith Electronic Throttle Control (KUP)
2006ChevroletExpress 35006.0LV8GASN/Awith Electronic Throttle Control (KUP)
2006ChevroletSilverado 15006.0LV8GASN/A
2006ChevroletSilverado 15005.3LV8N/A
2006ChevroletSilverado 15004.8LV8GASN/A
2006ChevroletSilverado 1500 HD6.0LV8N/A
2006ChevroletSilverado 25005.3LV8N/A
2006ChevroletSilverado 25004.8LV8N/A
2006ChevroletSilverado 2500 HD6.0LV8N/A
2006ChevroletSilverado 35006.0LV8N/A
2006ChevroletSuburban 15006.0LV8N/A
2006ChevroletSuburban 15005.3LV8N/A
2006ChevroletSuburban 25006.0LV8N/A
2006ChevroletTahoe5.3LV8N/A
2006ChevroletTahoe4.8LV8GASN/A
2006GMCSavana 25006.0LV8GASN/Awith Electronic Throttle Control (KUP)
2006GMCSavana 35006.0LV8GASN/Awith Electronic Throttle Control (KUP)
2006GMCSierra 15006.0LV8GASN/A
2006GMCSierra 15005.3LV8N/A
2006GMCSierra 15004.8LV8GASN/A
2006GMCSierra 1500 HD6.0LV8N/A
2006GMCSierra 2500 HD6.0LV8GASN/A
2006GMCSierra 35006.0LV8GASN/A
2006GMCYukon6.0LV8GASN/A
2006GMCYukon5.3LV8N/A
2006GMCYukon4.8LV8GASN/A
2006GMCYukon XL 15006.0LV8GASN/A
2006GMCYukon XL 15005.3LV8N/A
2006GMCYukon XL 25006.0LV8N/A
2006HummerH26.0LV8N/A
2005CadillacEscalade6.0LV8N/A
2005CadillacEscalade5.3LV8N/A
2005CadillacEscalade ESV6.0LV8N/A
2005CadillacEscalade EXT6.0LV8N/A
2005ChevroletAvalanche 15005.3LV8N/A
2005ChevroletCheyenne5.3LV8N/A
2005ChevroletExpress 25006.0LV8GASN/Awith Electronic Throttle Control (KUP)
2005ChevroletExpress 35006.0LV8GASN/Awith Electronic Throttle Control (KUP)
2005ChevroletSilverado 15006.0LV8GASN/A
2005ChevroletSilverado 15005.3LV8N/A
2005ChevroletSilverado 15004.8LV8GASN/A
2005ChevroletSilverado 1500 HD6.0LV8N/A
2005ChevroletSilverado 25005.3LV8N/A
2005ChevroletSilverado 2500 HD6.0LV8N/A
2005ChevroletSilverado 35006.0LV8N/A
2005ChevroletSuburban 15005.3LV8N/A
2005ChevroletSuburban 25006.0LV8N/A
2005ChevroletTahoe5.3LV8N/A
2005ChevroletTahoe4.8LV8GASN/A
2005GMCSavana 25006.0LV8N/Awith Electronic Throttle Control (KUP)
2005GMCSavana 35006.0LV8N/Awith Electronic Throttle Control (KUP)
2005GMCSierra 15006.0LV8GASN/A
2005GMCSierra 15005.3LV8N/A
2005GMCSierra 15004.8LV8GASN/A
2005GMCSierra 1500 HD6.0LV8N/A
2005GMCSierra 2500 HD6.0LV8GASN/A
2005GMCSierra 2500 HD6.0LV8CNGN/A
2005GMCSierra 35006.0LV8GASN/A
2005GMCSierra 35006.0LV8CNGN/A
2005GMCYukon6.0LV8GASN/A
2005GMCYukon5.3LV8N/A
2005GMCYukon4.8LV8GASN/A
2005GMCYukon XL 15006.0LV8GASN/A
2005GMCYukon XL 15005.3LV8N/A
2005GMCYukon XL 25006.0LV8N/A
2005HummerH26.0LV8N/A
2004BuickRainier5.3LV8N/A
2004CadillacEscalade6.0LV8N/A
2004CadillacEscalade5.3LV8N/A
2004CadillacEscalade ESV6.0LV8N/A
2004CadillacEscalade EXT6.0LV8N/A
2004ChevroletAvalanche 15005.3LV8N/A
2004ChevroletCheyenne5.3LV8N/A
2004ChevroletExpress 25006.0LV8GASN/Awith Electronic Throttle Control (KUP)
2004ChevroletExpress 35006.0LV8GASN/Awith Electronic Throttle Control (KUP)
2004ChevroletSilverado 15006.0LV8GASN/A
2004ChevroletSilverado 15005.3LV8N/A
2004ChevroletSilverado 15004.8LV8GASN/A
2004ChevroletSilverado 25006.0LV8N/A
2004ChevroletSilverado 25005.3LV8N/A
2004ChevroletSilverado 2500 HD6.0LV8N/Awith Electronic Throttle Control (KUP)
2004ChevroletSilverado 35006.0LV8N/A
2004ChevroletSSR5.3LV8N/A
2004ChevroletSuburban 15005.3LV8N/A
2004ChevroletSuburban 25006.0LV8N/A
2004ChevroletTahoe5.3LV8N/A
2004ChevroletTahoe4.8LV8GASN/A
2004ChevroletTrailblazer EXT5.3LV8N/A
2004GMCEnvoy XL5.3LV8N/A
2004GMCEnvoy XUV5.3LV8N/A
2004GMCSavana 25006.0LV8N/Awith Electronic Throttle Control (KUP)
2004GMCSavana 35006.0LV8GASN/Awith Electronic Throttle Control (KUP)
2004GMCSierra 15006.0LV8GASN/A
2004GMCSierra 15005.3LV8N/A
2004GMCSierra 15004.8LV8GASN/A
2004GMCSierra 25006.0LV8N/A
2004GMCSierra 2500 HD6.0LV8GASN/A
2004GMCSierra 35006.0LV8GASN/A
2004GMCYukon6.0LV8GASN/A
2004GMCYukon5.3LV8N/A
2004GMCYukon4.8LV8GASN/A
2004GMCYukon XL 15006.0LV8GASN/A
2004GMCYukon XL 15005.3LV8N/A
2004GMCYukon XL 25006.0LV8N/A
2004HummerH26.0LV8N/A
2004IsuzuAscender5.3LV8N/A
2003CadillacEscalade6.0LV8N/A
2003CadillacEscalade5.3LV8N/A
2003CadillacEscalade ESV6.0LV8N/A
2003CadillacEscalade EXT6.0LV8N/A
2003ChevroletAvalanche 15005.3LV8N/A
2003ChevroletCheyenne5.3LV8N/A
2003ChevroletSilverado 15006.0LV8GASN/A
2003ChevroletSilverado 15005.3LV8N/A
2003ChevroletSilverado 15004.8LV8GASN/A
2003ChevroletSilverado 1500 HD6.0LV8N/A
2003ChevroletSilverado 25006.0LV8N/A
2003ChevroletSilverado 25005.3LV8N/A
2003ChevroletSilverado 2500 HD6.0LV8N/Awith Electronic Throttle Control (KUP)
2003ChevroletSilverado 35006.0LV8N/A
2003ChevroletSSR5.3LV8N/A
2003ChevroletSuburban 15005.3LV8N/A
2003ChevroletSuburban 25006.0LV8N/A
2003ChevroletTahoe5.3LV8N/A
2003ChevroletTahoe4.8LV8N/A
2003ChevroletTrailblazer EXT5.3LV8N/A
2003GMCEnvoy XL5.3LV8N/A
2003GMCSavana 25006.0LV8N/Awith Electronic Throttle Control (KUP)
2003GMCSavana 35006.0LV8GASN/Awith Electronic Throttle Control (KUP)
2003GMCSavana 35006.0LV8CNGN/Awith Electronic Throttle Control (KUP)
2003GMCSierra 15006.0LV8GASN/A
2003GMCSierra 15005.3LV8N/A
2003GMCSierra 15004.8LV8GASN/A
2003GMCSierra 1500 HD6.0LV8N/A
2003GMCSierra 25006.0LV8N/A
2003GMCSierra 2500 HD6.0LV8GASN/A
2003GMCSierra 35006.0LV8GASN/A
2003GMCYukon6.0LV8GASN/A
2003GMCYukon5.3LV8N/A
2003GMCYukon4.8LV8N/A
2003GMCYukon XL 15006.0LV8GASN/A
2003GMCYukon XL 15005.3LV8N/A
2003GMCYukon XL 25006.0LV8N/A
2003HummerH26.0LV8N/A
2003IsuzuAscender5.3LV8N/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:

12570800126795251G50262172293673000977161977307ETB0019NTB1009S20006XTP673000

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

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