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  3. 2006-07 GM 2500 3500 Duramax 6.6L LLY LBZ (8th digit VIN: D or 2) Engine Computer ECM Exchange Service 12588335, 12606126, 12606127, 19260753
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2006-07 GM 2500 3500 Duramax 6.6L LLY LBZ (8th digit VIN: D or 2) Engine Computer ECM Exchange Service 12588335, 12606126, 12606127, 19260753

2006-07 GM 2500 3500 Duramax 6.6L LLY LBZ (8th digit VIN: D or 2) Engine Computer ECM Exchange Service 12588335, 12606126, 12606127, 19260753

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$ 1,756.87 1756.87 USD $ 1,756.87

$ 1,695.00

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    2006 Duramax Early-Build 2006 (The de-tuned "LLY"): The 8th digit of the VIN is 2. The engine is factory-rated at 310 hp. P/N 12588335: 2006 ONLY Silerado, Sierra Duramax 6.6L Diesel Early model with the LLY Engine
    2006.5-07 Duramax Late-Build 2006 (The true "LBZ"): The 8th digit of the VIN is D. The engine is factory-rated at 360 hp. P/N's 12588335, 12606126, 12606127, 19260753: 2006.5-07 Silverado, Sierra Duramax 6.6L Diesel ECM LBZ Engine

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    ◉  View our warranty policy here. 

    ◉ Shipping: 2-3 Business Days

    ◉ Exchange Service -CORE Return Required

     Ensure full compatibility for your equipment: please include the VIN and engine serial number in the checkout details so we can perform the correct calibration.

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