Air Intake Heater for Dodge Ram 2500 Ram 3500 (1998-2010) 5.9L 6.7L

Direct-Fit Cold Weather Air Intake Heater for 1998-2010 Dodge Ram 2500, Ram 3500 (BR/BE/DR/DH/D1)

What it Does: The Air Intake Heater restores factory cold-start efficiency on the 1998-2010 Ram 2500 and Ram 3500 by rapidly pre-heating incoming manifold air to eliminate extended cranking and excessive cold-start white smoke.

The Stock Dodge Ram 2500, Ram 3500 Grid Heater Degradation

Unlike light-duty diesel platforms that use individual glow plugs, the Cummins intake tract relies entirely on an open-element grid heater block positioned between the intake horn and plenum plate. Over high thermal cycles and millions of heating pulses, the factory heating ribbons suffer resistance degradation, metal fatigue, and carbon contamination from the crankcase ventilation or EGR circuits. Furthermore, the internal electrical connection studs frequently loosen, resulting in severe voltage drops, failed pre-heat cycles, rough winter idling, or unmetered boost leaks through compromised factory perimeter gaskets under high manifold pressure.

The Engineering Solution

This replacement intake grid heater is engineered to factory resistance benchmarks, featuring heavy-gauge resistive element ribbons encased in a high-density, heat-resistant metal frame. Designed with side-mounted electrical terminals on the same side for direct integration into non-relay configurations, it ensures robust high-amperage current draw without high resistance spikes. Paired with dual OEM-spec composite flange gaskets, it creates an airtight, boost-rated seal across the intake manifold runner, directly replacing worn 3970001 and 4948124 assemblies to restore rapid cylinder ignition in sub-zero environments.

What's Included

• 1 Air Intake Heater (Grid Heater Element)
• 2 Mating Gaskets

Technical Specifications

Compatibility

• 1998-2009 Dodge Ram 2500 5.9L Cummins Diesel
• 2007-2010 Dodge Ram 2500 6.7L Cummins Diesel
• 1998-2007 Dodge Ram 3500 5.9L Cummins Diesel
• 2007-2010 Dodge Ram 3500 6.7L Cummins Diesel

Frequently Asked Questions & Fitment Warnings

Does this fit the BR, BE, DR, DH, and D1 Ram 2500, Ram 3500?

Yes, this is a direct fit for the 1998-2010 Dodge Ram 2500 and Ram 3500 equipped with the 5.9L or 6.7L Cummins turbo-diesel engine; verify your intake wiring matches the side-by-side terminal orientation prior to installation.

How do I confirm compatibility with my existing harness?

Ensure your factory grid heater utilizes side terminals positioned on the same side of the housing rather than an offset or relay-integrated housing layout.

The Heavy-Duty Cummins Standard

Engineered to handle severe cold starts and extreme commercial towing duties, this grid heater assembly ensures dependable manifold pre-heating and pressure-tight sealing to keep your heavy-duty Cummins running smoothly in the harshest winter conditions.