Product Description
Genuine Cummins
Cummins 3979769 — EGR Valve Gasket (ISB 6.7L)
MPN: 3979769 | Also Known As: exhaust gas recirculation valve gasket | Location: EGR valve mounting flange (one-time use)
Why This Part
- ✓ OE sealing between the EGR valve and mounting surface to prevent exhaust leaks.
- ✓ Direct-fit for 6.7L ISB Ram applications (see fitment below).
- ✓ One-time use—replace whenever the EGR valve is removed.
- ✓ Durable construction to handle heat, vibration, and pressure cycling.
OE Fit Stock Replacement 1 Per Service
Quick Specs
| Type | EGR valve-to-flange gasket |
|---|---|
| OE Part # | 3979769 |
| Qty Required | 1 (replace at each EGR valve R&R) |
| Compatibility | ISB 6.7L (see Automotive Fitment) |
Verified Fitment (Automotive)
| Year Range | Engine | Chassis |
|---|---|---|
| 2007.5–2021 | Ram 6.7L ISB (24V Common-Rail) | Ram 2500/3500 (many 4500/5500 as well—verify by VIN/ESN) |
Industrial/Off-Highway: Used primarily on EPA13 6.7L ISB/QSB variants—confirm by Engine Serial Number (ESN).
Often Paired With
- EGR Valve (OE/Reman) for 6.7L ISB (’07.5–’18 commonly; verify by VIN/ESN)
- EGR Valve Pigtail: Fleece FPE-HAR-CUMM-EGR-PT (’07.5–’21)
- Intake Air Heater Gasket: Cummins 5264566 (’07.5–’18 common pairing)
- EGR cooler gaskets or kit as required during service
What’s In The Box
- (1) Genuine Cummins EGR Valve Gasket (3979769)
- Related gaskets, valve, and hardware sold separately.
Install Tips
- Clean both sealing surfaces thoroughly; do not reuse the old gasket.
- Position the new gasket and torque EGR valve fasteners to factory spec.
- Perform a post-repair leak check and verify EGR operation with a scan tool.
FAQ
WILL THIS FIT MY 6.7L CUMMINS RAM?Yes—this gasket is used on most 2007.5–2021 6.7L ISB Ram applications. Always confirm by VIN/ESN for cab & chassis models.
IS THIS GASKET REUSABLE?No—this is a one-time-use gasket. Replace it anytime the EGR valve is removed.
WHAT PARTS SHOULD I REPLACE AT THE SAME TIME?Inspect or replace the EGR valve if sticking, check the pigtail/connector, and consider fresh gaskets for the intake heater and EGR cooler connections as needed.
IS THIS A GENUINE CUMMINS PART?Yes—OE Cummins 3979769 for proper fit and seal integrity.
DOES THIS COME WITH THE EGR VALVE?No—this listing is for the gasket only. The EGR valve is sold separately.
Product Videos
Custom Field
Vehicle Year 2007.5,2008,2009,2010,2011,2012,2013,2014,2015
Vehicle Make DODGE
ENGINE 6.7L
Part Type EGR Valve Gasket
