HomeAir and Fuel Delivery > Fuel Injection System and Related ComponentsSpectra TB1048 Fuel Injection Throttle Body Assembly
Part #: TB1048

Spectra TB1048 Fuel Injection Throttle Body Assembly

⚙️ 23 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Buick, Chevrolet, GMC, Hummer, Isuzu, and Pontiac, Allure, Canyon, Colorado, Grand Prix, H3, H3T, i-370, Impala, and LaCrosse
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Reliable Fuel Injection Throttle Body Assembly for Select GM Vehicles

The Spectra TB1048 Fuel Injection Throttle Body Assembly is designed to restore proper throttle response and fuel delivery for a range of GM vehicles. Engineered to meet OEM specifications, this throttle body assembly is compatible with multiple Buick, Chevrolet, GMC, Hummer, Isuzu, and Pontiac models.

  • Direct replacement throttle body assembly for precise fuel injection control
  • Compatible with Buick Allure, Chevrolet Colorado, Impala, and more
  • Ensures smooth engine performance and improved throttle response
  • Manufactured to meet or exceed OEM standards for durability
  • Part number TB1048 for easy identification and fitment

Product Details and Compatibility

The Spectra TB1048 throttle body assembly is engineered for use in fuel injection systems across a variety of GM vehicles, including the Buick Allure and LaCrosse, Chevrolet Canyon, Colorado, and Impala, GMC Canyon and Sierra models, Hummer H3 and H3T, Isuzu i-370, and Pontiac Grand Prix. This part is designed to regulate the amount of air entering the engine, ensuring optimal air-fuel mixture for efficient combustion. Using the correct throttle body assembly like the TB1048 helps maintain engine performance and fuel efficiency.

Common Applications and Problem Resolution

  • Restores proper throttle response and engine idle stability
  • Resolves issues related to rough idling or stalling
  • Addresses poor acceleration or hesitation during throttle input
  • Corrects check engine light codes related to throttle body malfunction
  • Improves overall fuel injection system performance

Installation Notes and Tips

When installing the Spectra TB1048 throttle body assembly, ensure the engine is cool and the battery is disconnected to prevent electrical issues. Clean the throttle body mounting surface and intake manifold to avoid air leaks. After installation, it may be necessary to perform a throttle body relearn procedure or reset the vehicle’s ECU to ensure proper operation. Refer to the vehicle’s service manual for specific torque specifications and calibration steps.

Quality Assurance and Warranty

Manufactured to meet or exceed OEM quality standards, the Spectra TB1048 throttle body assembly undergoes rigorous testing to ensure reliable performance and durability. While specific warranty details are not provided, Spectra parts typically come with a limited warranty against defects in materials and workmanship. Consult the product documentation or supplier for exact warranty terms.

This part fits 23 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2012ChevroletColorado3.7LL5N/A
2012GMCCanyon3.7LL5N/A
2011ChevroletColorado3.7LL5N/A
2011GMCCanyon3.7LL5N/A
2010ChevroletColorado3.7LL5N/A
2010GMCCanyon3.7LL5N/A
2010HummerH33.7LL5N/A
2010HummerH3T3.7LL5N/A
2009BuickAllure5.3LV8N/A
2009BuickLaCrosse5.3LV8N/A
2009ChevroletColorado3.7LL5N/A
2009ChevroletImpala5.3LV8N/A
2009GMCCanyon3.7LL5N/A
2009HummerH33.7LL5N/A
2009HummerH3T3.7LL5N/A
2008BuickAllure5.3LV8N/A
2008BuickLaCrosse5.3LV8N/A
2008ChevroletColorado3.7LL5N/A
2008ChevroletImpala5.3LV8N/A
2008GMCCanyon3.7LL5N/A
2008HummerH33.7LL5N/A
2008Isuzui-3703.7LL5N/A
2008PontiacGrand Prix5.3LV8N/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:

1258824412616438126310162173107673028977362F00H600076S20094

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