Product Description
CUMMINS 5264566 OEM INTAKE AIR HEATER GASKET (INTAKE PLENUM / CONNECTION) – ISB 6.7L (2007.5–2018)
The CUMMINS 5264566 OEM Intake Air Heater Gasket is the original-equipment part designed to seal the intake elbow to the heater grid / intake plenum plate on 2007.5–2018 6.7L ISB engines. Installing this gasket ensures a tight, leak-free connection — eliminating boost leaks and preventing unmetered air from entering the manifold. The precision cut and factory-spec thickness guarantee a perfect fit, with no trimming or sealant required when re-installing the intake elbow or performing plenum/heater grid service. Replace this gasket any time the intake elbow is removed for maintenance, upgrades, or grid heater service to maintain factory-level performance and reliability.
• 2007.5–2018 Dodge / Ram 6.7L ISB (24V Common-Rail) engines — Ram 2500 / 3500 (and compatible industrial/off-highway ISB/QSB variants).
• Sits under the intake elbow, sealing intake elbow to heater grid (intake plenum / connection).
- Direct-fit Cummins OEM part — no guesswork, no cutting or trimming.
- Prevents boost and unmetered air leaks — essential after intake elbow or plenum removal.
- Maintains proper intake sealing and factory performance — ideal for stock or modified 6.7L ISB engines.
Replace this gasket whenever the intake elbow is removed — including for intake horn service, heater grid service, MAP sensor cleaning, turbo upgrades, or intake modifications. Always clean both sealing surfaces and torque fasteners evenly in a cross-pattern.
FAQ
WILL THIS FIT MY 2007.5–2018 6.7L CUMMINS RAM?
Yes — this gasket is OEM part 5264566 and fits the intake elbow to heater grid on 2007.5-2018 6.7L ISB engines (verify by VIN/ESN for exact fitment).
WHERE DOES THIS GASKET GO?
It mounts between the intake elbow and the intake air heater (grid heater) or plenum plate.
SHOULD I REUSE THE OLD GASKET?
No — always install a new gasket when reinstalling the intake elbow to prevent boost or unmetered-air leaks.
IS THIS A GENUINE CUMMINS PART?
Yes — 5264566 is the genuine Cummins OEM part number for the intake air heater / intake plenum connection gasket on 6.7L ISB engines.
WHAT ARE COMMON CROSS-REFERENCES?
4940849 (verify by VIN/ESN before substitution).
| Specifications for cummins 5264566 | |
|---|---|
| Part Number | 5264566 |
| Description | Intake Air Heater / Intake Plenum Connection Gasket |
| Fitment | 2007.5-2018 6.7L ISB (intake elbow to heater grid connection) |
| Quantity Required | 1 per engine (sold individually) |
| Shipping Info | Calculated at checkout (light weight, small package) — see CPP Diesel shipping policy |
| Cross Reference | 4940849 |
| Material / Construction | OE-spec gasket material (Cummins OEM) |
| Prop 65 Warning | Not applicable / Not listed |
Cross-Reference / Alternative Part Numbers:
• 4940849 — alternative ID often referenced for same intake air heater gasket (verify ESN before use).
