Michigan Motorsports Intake & Exhaust Valve Set - Like GM #12678745 & #12619825 - Fits 2014+ 5.3L Gen V Engines - L83 L84 L82 L8B - Includes 8 Intake Valves & 8 Exhaust Valves

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Management number 215592380 Release Date 2026/04/12 List Price $82.00 Model Number 215592380
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Restore your 5.3L Gen V engine's performance with this Genuine GM Intake and Exhaust Valve Set, featuring part numbers 12619825 (intake) and 12678745 (exhaust). Specifically designed for 2014 and newer L83, L84, L82, and L8B engines, this set includes 8 intake valves with a 1.929" head diameter and 5.212" length, and 8 exhaust valves with a 1.556" head diameter and 5.210" length. Manufactured to OEM specifications, these valves ensure optimal airflow and combustion efficiency, making them ideal for both stock replacements and performance rebuilds. Compatible with various 5.3L models, including select pickups and SUVs, this valve set offers a reliable solution to maintain your engine's power and efficiency.

  • OEM Quality: Genuine GM parts ensure perfect fit and function, maintaining factory performance standards.
  • Complete Set: Includes 8 intake valves (12619825) and 8 exhaust valves (12678745) for a comprehensive replacement.
  • Precision Engineered: Intake valves feature a 1.929" head diameter and 5.212" length; exhaust valves have a 1.556" head diameter and 5.210" length.
  • Wide Compatibility: Designed for 2014+ 5.3L Gen V engines, including L83, L84, L82, and L8B variants.
  • Enhanced Performance: Restores optimal airflow and combustion efficiency, supporting engine longevity and power output.
Size 1.929 inches x 5.212 inches
Brand Name Michigan Motorsports
Valve Type Intake Valve, Exhaust Valve
Manufacturer General Motors
Model Number MM12678745-08+MM12619825-08
Material Type Steel
Exterior Finish Machined
Item Dimensions 5.21 x 1.93 x 1 inches
Number of Ports 16
Specification Met OEM
Included Components (8) Genuine GM 12619825 Intake Valves, (8) Genuine GM 12678745 Exhaust Valves
Inlet Connection Type Valve

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