2005 GMC Truck Sierra 2500 Engine — Part # 00017837 — St.James Auto & Truck Parts-ARA Gold Seal, URG, Team PRP · St.James, MO

When replacing an engine, one of the most critical yet often overlooked factors is ensuring the exact engine model and specifications match your vehicle to maintain performance and compatibility. This listing features a 6.6L engine from a 2005 GMC Truck Sierra 2500, specifically the LLY variant with automatic transmission. The engine grade is rated as C, indicating it may have some wear or cosmetic imperfections that should be considered before purchase. This engine is designed for the 2005 GMC Sierra 2500 truck, a heavy-duty vehicle requiring robust powertrain components. The seller notes mention an estimated CO2e savings of 1194kg, which may be of interest for environmental impact considerations but is not a direct performance metric. Buyers should verify that this LLY 6.6L engine matches their specific vehicle configuration, including transmission type and emission standards. When comparing options, consider the engine's grade and condition relative to your budget and intended use. Grade C engines may require additional inspection or refurbishment. Confirming the engine's compatibility with your vehicle's VIN and consulting with a professional mechanic can help avoid installation issues. This part is identified by the seller stock number 00017837. For more information on compatible components, you can explore other GMC parts to ensure comprehensive vehicle maintenance or repair. Before ordering, assess your vehicle's current engine specifications and compare them with this listing to ensure a proper match. If ready, this engine could be a cost-effective solution for restoring your 2005 GMC Sierra 2500's power and reliability.