OEM GM Part #: 84564686. CT5 (Luxury, Premium Luxury, Sport, V) : 2020–2025. Encore GX: 2025–2026. Trailblazer: 2025–2026. CT4 (Luxury, Premium Luxury, Sport, V) : 2020–2026. Silverado 2500 HD: 2020–2026.
Fit Silverado Sierra 2500 L5P Duramax Engine Block Heater Cord GM 84564686
OEM GM Part #: 84564686. This cord is essential for cold-weather starting and proper function of the engine block heater on GM 2500/3500 HD trucks equipped with the 6.6L L5P Duramax Diesel engine. 2020–2025 Chevrolet Silverado 2500/3500 HD 6.6L L5P Duramax.
2020-2025 Silverado Sierra 2500 L5P Duramax Engine Block Heater Cord GM 84564686
The 2020-2025 Silverado Sierra 2500 L5P Duramax Engine Block Heater Cord GM 84564686 is a genuine OEM GM product designed specifically for the 6.6L & 3.0 Duramax L5P engine. This block heater extension cable cord ensures optimal performance and efficiency by heating up the engine block to improve starting and running temperatures, especially in colder climates.
19-26 Chevy Silverado Sierra Engine Coolant Heater Extension Cord Cable 84564686
2019–2026 Chevrolet Silverado 1500. 2020–2026 Chevrolet Silverado 2500 HD & 3500 HD. 2019–2026 GMC Sierra 1500. 2020–2026 GMC Sierra 2500 HD & 3500 HD. Trim / Options: Pro, SLE, SLT, AT4, AT4X, Denali, Denali Ultimate.