ACDelco Engine Block Heater, Triangle Design, 3 Prong, 120 VAC, 1,000 Watts, Fits 40mm Dia. Hole - 12657629

Ensure your engine starts smoothly even in the coldest conditions with the ACDelco Engine Heater. Designed to fit engines originally equipped with a 3-prong triangle style electrical connector, this heater is a reliable solution for optimal engine performance.

• Powerful 1,000 watts of heating capability, ensuring quick engine warm-up in harsh climates.
• 120 V voltage makes it compatible with standard electrical systems, providing ease of installation.
• Strategically mounted on the right side of the engine near the front of the block for efficient heat distribution.
• Specifically designed for GM 6.6L Duramax engines, including LB7, LLY, LBZ, LMM, and LML models.
• Sold individually, ensuring you get exactly what you need for your vehicle.

With the ACDelco Engine Heater, you can confidently tackle cold weather, knowing your engine is protected and ready to perform.