Disclaimers

Date Published: January 21, 2026 | Last Modified: 1 hour ago | 4 minute read | Verified by Adrian Correia at Redwater Dodge

RAM Block Heater Locations: A Complete Guide for Truck Owners

Where is my RAM block Heater Located?

When the temperature drops, ensuring your truck is ready to turn over is vital. While many manufacturers have moved away from including block heaters as standard equipment, Stellantis continues to prioritize cold-weather reliability. 


Can’t find your RAM truck’s block heater cord? Adrian at Redwater Dodge shows you where to locate the block heater on RAM 1500 and Heavy Duty Diesel models to ensure easy winter starting.

 


Finding Your Block Heater Cord by Model

Locating your plug can be tricky depending on your engine configuration. Here is exactly where to look:


RAM 1500 (Half-Ton Trucks)

On the new RAM 1500 models, the block heater cord is conveniently located in the engine bay.


Location: Passenger side.


Specific Spot: Look near the air filter housing. It is usually tucked away to prevent interference with moving parts.


Pro Tip: You can easily relocate this cord or attach a short extension for easier access through the grille.


RAM Heavy Duty (2500/3500 Diesel)

For Cummins Diesel owners, the location is a bit more "stealthy" to protect the cord from road debris.


Location: Behind the front bumper valence.


Specific Spot: Reach into the small pocket/opening in the lower plastic valence on the front bumper.


Pro Tip: Most diesel owners prefer to "unravel" the factory cord and zip-tie it to a more accessible spot or install a bumper-mounted plug-in port for convenience.


RAM Cold Weather FAQs


Q1: Do all RAM trucks come with a block heater?

A1: While many RAM trucks in northern climates come equipped with the heating element, the cord itself is sometimes a separate option (Sales Code: NHK). If you see the element on the engine block but no cord, contact our parts department to order the wiring harness.


Q2: At what temperature should I start plugging in my RAM?

A2: For gasoline engines (1500), plugging in at -15°C (5°F) is recommended. For Cummins Diesel engines, it is best to plug in once temperatures hit -10°C (14°F) to reduce strain on the glow plugs and batteries.


Q3: How long does it take for a block heater to work?

A3: You do not need to leave your truck plugged in all night. Using a heavy-duty outdoor timer to turn the heater on 2 to 3 hours before you plan to drive is sufficient and saves on electricity.


Q4: Can I install a block heater if my truck didn't come with one?

A4: Yes. Our service department can retrofit any RAM 1500, 2500, or 3500 with an OEM Mopar block heater kit to ensure factory-level reliability.

Adrian Correia -- Sales Manager at Redwater Dodge