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CUMMINS

CUMMINS 3947530 OEM INTAKE MANIFOLD COVER GASKET (INTAKE PLENUM GASKET) – RAM 5.9L/6.7L (2003–2024)

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SKU:
CUM3947530
MPN:
3947530
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  • CUMMINS 3947530 OEM INTAKE MANIFOLD COVER GASKET (INTAKE PLENUM GASKET) – RAM 5.9L/6.7L (2003–2024)
  • CUMMINS 3947530 OEM INTAKE MANIFOLD COVER GASKET (INTAKE PLENUM GASKET) – RAM 5.9L/6.7L (2003–2024)
  • CUMMINS 3947530 OEM INTAKE MANIFOLD COVER GASKET (INTAKE PLENUM GASKET) – RAM 5.9L/6.7L (2003–2024)
  • CUMMINS 3947530 OEM INTAKE MANIFOLD COVER GASKET (INTAKE PLENUM GASKET) – RAM 5.9L/6.7L (2003–2024)
  • CUMMINS 3947530 OEM INTAKE MANIFOLD COVER GASKET (INTAKE PLENUM GASKET) – RAM 5.9L/6.7L (2003–2024)
$39.19
724-785-4022

Description

Genuine Cummins

Cummins 3947530 — Intake Manifold Cover Gasket / Intake Plenum Gasket

MPN: 3947530  |  Also Known As: intake plenum gasket, intake manifold cover gasket, intake horn gasket (large)  |  Position: Between intake plenum/cover (grid heater plate) and cylinder head

Why This Part

  • ✓ OE sealing to keep boost-tight seal and prevent unmetered air leaks.
  • ✓ Direct-fit for Ram 5.9L/6.7L ISB applications.
  • ✓ Durable construction for heat and compression resistance.
  • ✓ Ideal anytime the intake plenum/cover or grid heater is removed.
OE Fit Boost-Tight Seal 1 Per Engine

Quick Specs

Type Intake manifold cover / plenum gasket
OE Part # 3947530
Qty Required 1 per engine (sold individually)
Use Case Replace when removing intake cover/grid heater or if leaks are detected

Verified Fitment (Automotive)

Year RangeEngineChassis
2003–2007 Ram 5.9L ISB (24V Common-Rail) Ram 2500/3500
2007.5–2024 Ram 6.7L ISB (24V Common-Rail) Ram 2500/3500

Notes: Cummins catalogs show this gasket used primarily on EPA13 ISB/QSB 6.7 variants; late-year trucks can have running changes—verify by VIN/ESN.

Often Paired With

  • Intake air heater gasket: Cummins 5264566 (grid heater to cover)
  • Heater grid: Cummins 3969987
  • Plenum/cover assemblies: Cummins 5335502, Mopar 68069387AA / 68290470AA

What’s In The Box

  • (1) Genuine Cummins Intake Manifold Cover/Plenum Gasket (3947530)

Install Tips

  • Clean mating surfaces; avoid gouges that can cause boost leaks.
  • Follow torque sequence/spec for the plenum cover; recheck fasteners after heat cycle if specified.
  • Any time the grid heater or cover is removed, replace this gasket.

FAQ

WILL THIS FIT BOTH 5.9L (2003–2007) AND 6.7L (2007.5–2024) RAMS?

Yes—this gasket is used across common-rail 5.9L and 6.7L applications. Always confirm by VIN/ESN, especially on late-model trucks.

IS THIS THE LARGE “PLENUM/INTAKE COVER” GASKET?

Correct—this is the large gasket that seals the plenum/cover (grid heater plate) to the cylinder head.

DO I NEED ANY OTHER GASKETS WHEN I REMOVE THE COVER?

If you separate the grid heater from the cover, you’ll also need the intake air heater gasket (Cummins 5264566).

IS THIS A GENUINE CUMMINS PART?

Yes—OE Cummins 3947530 for proper sealing and durability.

WHAT SYMPTOMS POINT TO A LEAK HERE?

Hissing under boost, oily residue at the seam, or unexplained boost loss—replace the gasket and torque to spec.

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Additional Information

Vehicle Year:
2003,2004,2005,2006,2007,2008,2009,2010,2011
Vehicle Make:
DODGE
ENGINE:
5.9L
Part Type:
Large Intake Gasket
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