Engine Block Heater for Ram 1500 2500 3500 (2011-2022) 5.7L Hemi

Direct-Immersion Engine Block Heater for 2011-2022 Ram 1500, 2500, 3500 (DS / DT / DJ)

What it Does: The Engine Block Heater pre-warms engine coolant in 2011-2022 Ram 1500, 2500, and 3500 trucks to reduce cold-start friction, eliminate severe engine wear, and expedite cabin heating in sub-zero environments.

The Stock Ram Cold-Start Vulnerability

During freezing ambient temperatures, engine oil in the cast-iron block thickens significantly, resulting in elevated viscosity that delays oil pressure delivery to the valve train and crank bearings. In the 5.7L HEMI, cold dry starts accelerate wear on the hydraulic lifters, camshaft lobes, and cylinder walls. Additionally, extended open-loop idle enrichment causes unburnt fuel wash against the cylinder bore, reducing lubrication efficacy and drastically increasing tailpipe emissions during the warmup cycle.

The Engineering Solution

This 600-watt direct-immersion cartridge integrates directly into the water jacket freeze plug port of the 5.7L HEMI V8. Powered by a standard 120V grounded supply, the heating element initiates natural thermal convection throughout the cooling passages, warming both the engine block and internal fluid reserves prior to ignition. Constructed with high-grade copper heating sheathing and a weather-sealed 7-foot heavy-gauge automotive power harness, it withstands thermal cycling, road salt, and chassis vibration without degrading.

Technical Specifications

Compatibility

• 2011-2022 Ram 1500 with 5.7L Hemi V8
• 2011-2022 Ram 2500 with 5.7L Hemi V8 (Gas models only)
• 2011-2022 Ram 3500 with 5.7L Hemi V8 (Gas models only)
• Does not fit 3.6L Pentastar V6, 3.0L EcoDiesel, 6.4L Hemi, or 6.7L Cummins Diesel

Frequently Asked Questions

Does this fit the DS and DT 1500, 2500, 3500?

Yes, this is a direct fit for the 2011-2022 Ram 1500, 2500, and 3500 equipped with the 5.7L HEMI engine.

Does installation require draining the cooling system?

Yes, because the element mounts directly into the engine block core plug port, coolant must be drained prior to removing the OEM freeze plug.

The Ram Heavy-Duty Standard

Built for rigorous commercial duty cycles, fleet hauling, and severe-duty towing, this block heater ensures your Ram platform cranks instantly under extreme sub-zero weather conditions while preserving long-term valvetrain integrity.