Description
Product Overview
The Tecreddy Engine Block Heater Cord is engineered for heavy‑duty diesel applications, delivering 120 volts through a robust 6‑foot length of 16AWG copper wire. Designed to replace OEM part numbers such as 19301659 and 23402644, the cord features high‑temperature insulation that withstands extreme cold, ensuring consistent power to your engine block heater. Its 15‑amp rating and durable 6‑foot reach provide flexibility for various vehicle configurations while maintaining a compact package measuring 6.65 x 4.33 x 1.93 inches and weighing only 6.4 ounces.
Usage
This heater cord is perfect for owners of 2001‑2017 Duramax 6.6L Chevrolet and GMC 2500/3500 diesel trucks, as well as most 2018 models. Install the cord in cold climates to pre‑heat the engine before start‑up, reducing wear and improving fuel efficiency. Ideal for personal garages, fleet maintenance facilities, and roadside assistance services, the cord’s 6‑foot length allows easy routing to the heater element without strain.

Why Choose Us
Tecreddy combines automotive expertise with rigorous quality control, offering a product that meets or exceeds OEM specifications. The cord’s copper core ensures low resistance and efficient heat transfer, while the high‑temperature jacket protects against cracking and abrasion. Backed by a 5‑star customer rating and a best‑seller rank in the Engine Heater Accessories category, this cord delivers proven reliability for demanding users.
Key Features
- 120V, 15A rating suitable for standard block heaters
- 16AWG copper conductors for optimal conductivity and durability
- 6‑foot (1.8m) length provides flexible installation options
- High‑temperature resistant insulation prevents cracking in extreme cold
- Direct replacement for multiple OEM part numbers, ensuring perfect fit
FAQ
Is this cord compatible with my 2015 Chevrolet Silverado?
Yes, the cord is compatible with all 2001‑2017 Duramax 6.6L engines, including the 2015 Silverado, as long as the vehicle uses a standard block heater plug.
What is the wire gauge and why does it matter?
The cord uses 16AWG copper wire, which provides a balance of flexibility and low resistance, ensuring efficient power delivery to the heater even in very cold temperatures.
Can I use this cord for a different brand’s heater?
As long as the heater requires a 120V, 15A plug and matches the standard connector size, the cord will work. Verify the plug type before installation.
How do I install the cord safely?
Disconnect the battery, route the cord away from moving parts, and secure it with zip ties. Connect the plug to the heater, then reconnect power and test for proper operation.
What warranty does Tecreddy offer?
Tecreddy provides a one‑year limited warranty covering manufacturing defects, giving you peace of mind for your investment.




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