Product Description
The CUMMINS 3929108 OEM INTAKE AIR HEATER GRID is designed for 1989–1998 5.9L Cummins 12-valve diesel engines. This genuine Cummins intake heater grid helps improve cold-weather starting by warming incoming air before it enters the engine, promoting more efficient combustion during low-temperature operation.
Use this part when replacing a damaged, corroded, or non-functioning intake air heater grid. Proper operation of the intake heater system helps reduce cold-start smoke, improves engine starting performance, and supports reliable winter operation. Always verify fitment by engine serial number before ordering.
FEATURES
- Genuine Cummins OEM intake air heater grid
- Direct-fit replacement for 5.9L Cummins 12-valve engines
- Helps improve cold-weather starting performance
- Supports proper intake air heating during cold operation
- Reduces excessive cold-start smoke and rough running
- Built to Cummins OEM specifications for durability and reliability
FITMENT
- 1989–1993 Dodge Ram 2500/3500 5.9L Cummins 12-Valve
- 1994–1998 Dodge Ram 2500/3500 5.9L Cummins 12-Valve
- Select Cummins 6BT industrial and commercial applications
WHAT'S INCLUDED
- 1 Cummins 3929108 OEM Intake Air Heater Grid
CROSS-REFERENCE AND RELATED PRODUCTS
- Cummins 3929108
- Cummins Intake Heater Relay Components
- Cummins Intake Heater Gaskets
- Cummins Intake Manifold Hardware
SPECIFICATIONS
- Manufacturer: Cummins
- Part Number: 3929108
- Part Type: Intake Air Heater Grid
- Engine Compatibility: 5.9L Cummins 12-Valve (6BT)
- Fitment Years: 1989–1998
- Vehicle Application: Dodge Ram 2500 and 3500
- Condition: New OEM Cummins
- System: Intake Air Heating System
- Installation Type: Direct Replacement
FAQ
Will this intake heater grid fit my truck?
This intake air heater grid fits most 1989–1998 Dodge Ram trucks equipped with the 5.9L Cummins 12-valve engine. Always verify fitment by engine serial number before ordering.
What does an intake air heater grid do?
The heater grid warms incoming air during cold weather operation, helping improve combustion, reduce white smoke, and make cold starts easier.
Is this a genuine Cummins part?
Yes. Cummins 3929108 is a genuine OEM intake air heater grid manufactured to Cummins specifications.
What are common signs of a failed heater grid?
Symptoms may include hard cold starts, excessive white smoke during startup, poor cold-weather drivability, or heater grid electrical faults.
What is included with this part?
This listing includes one Cummins 3929108 OEM intake air heater grid.
Do I need any related parts?
Inspect the heater grid relay, electrical connections, intake manifold gasket, mounting hardware, and battery system during installation and replace worn components as needed.
