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  • 12633906 GM LS2 LS3 Timing Cover - Includes Camshaft Position Sensor, Timing Cover Gasket, Bolts, Crank Seal
  • 12633906 GM LS2 LS3 Timing Cover - Includes Camshaft Position Sensor, Timing Cover Gasket, Bolts, Crank Seal
  • 12633906 GM LS2 LS3 Timing Cover - Includes Camshaft Position Sensor, Timing Cover Gasket, Bolts, Crank Seal
  • 12633906 GM LS2 LS3 Timing Cover - Includes Camshaft Position Sensor, Timing Cover Gasket, Bolts, Crank Seal
  • 12633906 GM LS2 LS3 Timing Cover - Includes Camshaft Position Sensor, Timing Cover Gasket, Bolts, Crank Seal
  • 12633906 GM LS2 LS3 Timing Cover - Includes Camshaft Position Sensor, Timing Cover Gasket, Bolts, Crank Seal
  • 12633906 GM LS2 LS3 Timing Cover - Includes Camshaft Position Sensor, Timing Cover Gasket, Bolts, Crank Seal
  • 12633906 GM LS2 LS3 Timing Cover - Includes Camshaft Position Sensor, Timing Cover Gasket, Bolts, Crank Seal

    • 12633906 GM LS2 LS3 Timing Cover - Includes Camshaft Position Sensor, Timing Cover Gasket, Bolts, Crank Seal

    GM

    $134.99
    (2 reviews) Write a Review
    SKU:
    12633906
    UPC:
    00195491147447
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    Product Description

    Genuine GM 12633906 LS2 / LS3 Front Timing Cover

    Complete OEM Front Engine Timing Cover Assembly for 2005+ Gen 4 LS Engines (Non-VVT)

    The Genuine GM 12633906 timing cover is an OEM replacement designed for 2005 and newer Gen 4 LS-based car and truck engines that use a front-mounted camshaft position sensor. This factory GM timing cover provides correct sensor positioning, proper oil sealing, and long-term reliability when servicing or rebuilding your engine. It is a direct replacement for non-VVT applications and is commonly used during camshaft swaps, timing component service, or engine reseals.

    This timing cover comes fully equipped with all required OEM components, including the camshaft position sensor, crankshaft seal, gasket, and mounting hardware, ensuring a clean, hassle-free installation while maintaining factory fit and performance.

    Key Features & Benefits

    • Genuine GM OEM Component: Manufactured to GM factory specifications for precise fit, durability, and long service life.
    • Front-Mounted Cam Sensor Design: Correct for Gen 4 LS engines that utilize a camshaft position sensor in the timing cover.
    • Non-VVT Applications Only: Designed exclusively for engines without Variable Valve Timing.
    • Complete Installation Kit: Includes gasket, bolts, crankshaft seal, and camshaft position sensor for a full OEM-correct replacement.
    • Ideal for Engine Service & Cam Swaps: Commonly replaced during timing chain service, camshaft upgrades, or front engine reseals.

    Includes

    • Front Timing Cover
    • Camshaft Position Sensor
    • Timing Cover Gasket
    • Crankshaft Front Seal
    • Timing Cover Bolts

    Fitment

    • 2005+ Gen 4 LS-Based Car & Truck Engines
    • Camshaft Position Sensor Located in Front Timing Cover
    • Non-VVT Applications Only

    Important Note: This timing cover is NOT compatible with Variable Valve Timing (VVT) engines.

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    • 5
      Timing Chain Cover

      Posted by Joe on Mar 28th 2025

      Perfect fit and function

    • 5
      Fit perfectly

      Posted by Steven DeBettignies on Nov 23rd 2023

      Perfect fit on my DOD delete 5.3.