Product Description
The CUMMINS 3969987 OEM INTAKE AIR HEATER GRID is designed for 1998.5–2007 5.9L Cummins diesel engines. This genuine Cummins component helps warm incoming air during cold-weather operation, improving starting performance, combustion efficiency, and engine drivability.
Use this part when replacing a failed grid heater, repairing cold-start issues, or restoring the factory intake heating system. Always verify fitment by year, make, model, engine, and engine serial number before ordering.
FEATURES
- Genuine Cummins OEM intake air heater grid
- Designed for 1998.5–2007 5.9L Cummins applications
- Helps improve cold-weather starting performance
- Supports proper intake air temperature during startup
- Direct-fit replacement for factory grid heater systems
- Built for long service life and reliable operation
FITMENT
- 1998.5–2002 Dodge Ram 2500/3500 5.9L Cummins 24V
- 2003–2007 Dodge Ram 2500/3500 5.9L Cummins Common Rail
- Select Cummins industrial and commercial 5.9L applications
WHAT'S INCLUDED
- 1 Cummins 3969987 OEM Intake Air Heater Grid
CROSS-REFERENCE AND RELATED PRODUCTS
- Cummins 3969987
- Grid heater relay components
- Intake plenum and heater grid gaskets
SPECIFICATIONS
- Manufacturer: Cummins
- Part Number: 3969987
- Part Type: Intake Air Heater Grid
- Engine Compatibility: 5.9L Cummins
- Fitment Years: 1998.5–2007
- Vehicle Application: Dodge Ram 2500 / 3500
- Condition: New OEM Cummins
- Quantity: Sold Individually
FAQ
Will this part fit my truck?
This part fits the applications listed above. Always verify your year, make, model, engine, and engine serial number before ordering.
What does the intake air heater grid do?
The grid heater warms incoming intake air during cold-weather starts, helping improve combustion quality, reduce white smoke, and enhance starting performance.
Is this a genuine Cummins part?
Yes. Cummins 3969987 is a genuine OEM intake air heater grid designed for factory-correct fitment and performance.
What is included?
This listing includes one Cummins 3969987 OEM intake air heater grid.
When should the grid heater be replaced?
Replacement is recommended if the heater element is damaged, has electrical faults, or is no longer functioning properly during cold starts.
Do I need any related parts?
Inspect the grid heater relay, wiring connections, intake horn gasket, mounting hardware, and associated electrical components during installation and replace worn parts as necessary.
