GM 12657629 Block Heater Element 2001-2016 GM 6.6L Duramax LB7/LLY/LBZ/LMM/LML

The GM 12657629 Block Heater Element is an essential upgrade for any 2001-2016 GM 6.6L Duramax LB7/LLY/LBZ/LMM/LML vehicle. Specifically engineered and tested to meet rigorous standards, this component delivers reliable performance backed by General Motors. It represents the true original equipment (OE) parts that come installed in your vehicle during production, ensuring seamless compatibility and exceptional quality.

Crafted from premium materials, including a brass heater element, this block heater is designed to withstand the demands of your engine while providing optimal heat generation. Its unique expansion plug form factor allows for efficient installation, while the universal fit specifications ensure that it snugly integrates with your engine's existing infrastructure. With a probe length of 181.75 mm and a diameter of 0.315 inches, it precisely fits into designated ports, providing the necessary warmth to prevent your engine from freezing in harsh weather conditions.

Offering a 24-month/unlimited miles limited warranty for parts—plus labor when installed by a GM dealer—this block heater element provides peace of mind for those who prioritize performance and reliability. Safety is paramount, and customers should be aware of the warning regarding cancer and reproductive harm.

Upgrade your vehicle’s cold-weather capabilities with the GM 12657629 Block Heater Element to ensure smooth starts and optimal engine health. Its reliable performance sets it apart, making it an indispensable component for any GM enthusiast looking to maintain their vehicle's performance, longevity, and safety in fluctuating temperatures. Superior craftsmanship meets stringent engineering standards in this OE block heater, making it the go-to choice for both everyday drivers and serious 6.6L Duramax users.

• Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
• GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors.
• GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
• GM regularly updates production and service part designs to integrate new materials and technologies

GM Genuine Parts Engine Heater are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Warranty

24 Months/Unlimited Miles Limited Warranty for Parts (plus Labor if installed by a GM dealer)

Product Specifications

Probe Diameter	0.315 in
Voltage	120 AC
Universal Or Specific Fit	Specific
Heater Type	Expansion Plug
Thermostatically Controlled	No
Mounting Hardware Included	No
Electrical Connector Shape	Triangle
Replaceable Cord	Yes
Heater Element Material	Brass
Body Height	23.45 mm
Fits Hole Diameter	40 mm
Body Length	42.05 mm
Body Width	42.81 mm
Body Outside Diameter	44.45 mm
Probe Length	181.75 mm
Probe Length	7.156 in
Body Height	0.923 in
Electrical Connector Quantity	1
Body Outside Diameter	1.75 in
Body Length	1.656 in
Body Width	1.685 in
Fits Hole Diameter	1.575 in
Classification	OE