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Michigan Motorsports 78mm 3-Bolt Throttle Body - Like GM Part #19420713 / #12679525 - Fits 2003-2006 GM Truck & SUV 4.8L 5.3L 6.0L - LM7 LQ4 L59 L33 LQ9 LM4 - OEM Replacement in Saudi Arabia Michigan Motorsports 78mm 3-Bolt Throttle Body - Like GM Part #19420713 / #12679525 - Fits 2003-2006 GM Truck & SUV 4.8L 5.3L 6.0L - LM7 LQ4 L59 L33 LQ9 LM4 - OEM Replacement in Saudi Arabia Michigan Motorsports 78mm 3-Bolt Throttle Body - Like GM Part #19420713 / #12679525 - Fits 2003-2006 GM Truck & SUV 4.8L 5.3L 6.0L - LM7 LQ4 L59 L33 LQ9 LM4 - OEM Replacement in Saudi Arabia Michigan Motorsports 78mm 3-Bolt Throttle Body - Like GM Part #19420713 / #12679525 - Fits 2003-2006 GM Truck & SUV 4.8L 5.3L 6.0L - LM7 LQ4 L59 L33 LQ9 LM4 - OEM Replacement in Saudi Arabia Michigan Motorsports 78mm 3-Bolt Throttle Body - Like GM Part #19420713 / #12679525 - Fits 2003-2006 GM Truck & SUV 4.8L 5.3L 6.0L - LM7 LQ4 L59 L33 LQ9 LM4 - OEM Replacement in Saudi Arabia Michigan Motorsports 78mm 3-Bolt Throttle Body - Like GM Part #19420713 / #12679525 - Fits 2003-2006 GM Truck & SUV 4.8L 5.3L 6.0L - LM7 LQ4 L59 L33 LQ9 LM4 - OEM Replacement in Saudi Arabia Michigan Motorsports 78mm 3-Bolt Throttle Body - Like GM Part #19420713 / #12679525 - Fits 2003-2006 GM Truck & SUV 4.8L 5.3L 6.0L - LM7 LQ4 L59 L33 LQ9 LM4 - OEM Replacement in Saudi Arabia Michigan Motorsports 78mm 3-Bolt Throttle Body - Like GM Part #19420713 / #12679525 - Fits 2003-2006 GM Truck & SUV 4.8L 5.3L 6.0L - LM7 LQ4 L59 L33 LQ9 LM4 - OEM Replacement in Saudi Arabia Michigan Motorsports 78mm 3-Bolt Throttle Body - Like GM Part #19420713 / #12679525 - Fits 2003-2006 GM Truck & SUV 4.8L 5.3L 6.0L - LM7 LQ4 L59 L33 LQ9 LM4 - OEM Replacement in Saudi Arabia

Michigan Motorsports 78mm 3-Bolt Throttle Body - Like GM Part #19420713 / #12679525 - Fits 2003-2006 GM Truck & SUV 4.8L 5.3L 6.0L - LM7 LQ4 L59 L33 LQ9 LM4 - OEM Replacement

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Special Features

  • OEM GM Replacement Throttle Body – Genuine GM part 19420713 provides a direct, factory-spec replacement for worn or malfunctioning throttle bodies in 2003–2006 GM trucks and SUVs.
  • 78mm 3-Bolt Design – Maintains stock airflow and throttle response with the correct 3-bolt mounting pattern and factory-style electrical connection for hassle-free installation.
  • Compatible with 4.8L, 5.3L, and 6.0L Engines – Fits popular Gen III LS truck engines including LM7, LQ4, LR4, L59, L33, LQ9, and LM4 platforms.
  • Restores Smooth Idle & Throttle Control – Ideal for resolving common issues such as rough idle, stalling, throttle lag, and reduced power output.
  • Genuine GM Quality & Reliability – Manufactured to exact GM standards for long-lasting durability, sensor accuracy, and proper airflow calibration.

Description

Restore your vehicle's throttle response and drivability with this Genuine GM 78mm 3-Bolt Throttle Body, part number 19420713 (also replaces GM #12679525). Specifically designed for 2003–2006 GM trucks and SUVs, this OEM unit ensures proper fitment and functionality on 4.8L, 5.3L, and 6.0L Gen III LS-based engines. Whether you're dealing with a failing throttle body, poor idle, hesitation, or drive-by-wire issues, this GM throttle body is the correct OE solution—not a remanufactured or aftermarket alternative. The 78mm diameter and 3-bolt design make it the go-to option for factory replacements and LS truck builds maintaining stock air intake systems. Compatible with popular engines including LM7, LQ4, LR4, L59, L33, LQ9, and LM4, this throttle body is a drop-in solution that brings your vehicle's performance back to factory spec.

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