Dodge Charger (2012-2023) Engine Intake Manifold Gasket Set Replacement Guide
A rough idle, whistling noise, or coolant leak on your Charger could mean it's time for new intake manifold gaskets.
- A failing intake manifold gasket will most likely cause a rough idle and a Check Engine Light with lean codes (P0171, P0174).
- For Hemi engines, watch for coolant leaks near the front of the engine, as this is a common failure symptom.
- High-quality aftermarket brands like Fel-Pro and Victor Reinz are excellent, reliable alternatives to more expensive OEM parts.
- If you have a 3.6L V6, consider replacing the oil filter housing assembly at the same time to prevent future leaks and save on labor.
Is Your Charger's Intake Gasket Failing?
The intake manifold gaskets on your 2012-2023 Dodge Charger, whether it has a Pentastar V6 or a Hemi V8, are wear items. Made of specialized rubber, they get hard and brittle from constant heat cycles and eventually stop sealing properly. When this happens, you'll notice problems that affect your car's performance and reliability.
Key Symptoms of a Bad Gasket
- Rough or Unstable Idle: This is the most common sign. A vacuum leak lets extra air into the engine, confusing the computer and causing the engine to stumble or idle erratically.
- Check Engine Light: A vacuum leak will often trigger codes like P0171 (System Too Lean Bank 1) and P0174 (System Too Lean Bank 2), as the oxygen sensors detect too much air in the exhaust. You might also see random misfire codes like P0300.
- Hissing or Whistling Noise: You may hear a distinct hissing sound from the engine bay at idle. This is the sound of air being sucked through the failed gasket.
- Coolant Leak or Overheating: On Hemi V8 engines, a failed gasket can cause coolant to leak externally, often near the front of the engine. This can lead to a sweet smell of antifreeze, low coolant levels, and engine overheating.
- Reduced Fuel Economy & Power: When the engine's computer tries to compensate for the air leak by adding more fuel, your gas mileage will suffer. You may also notice a lag in acceleration.
Known Issue for 5.7L Hemi (2022-2023)
A Technical Service Bulletin (TSB) exists for some 2022-2023 Dodge Chargers with the 5.7L Hemi engine. It warns of a potential fracture crack on the intake manifold itself, causing a rough idle and other vacuum leak symptoms. While this is an issue with the manifold, not just the gasket, replacing the manifold requires a new gasket set.
Choosing the Right Aftermarket Gasket Set
For a part like this, you don't need to buy from the dealer to get a quality seal. Reputable aftermarket brands often meet or exceed OEM quality, sometimes with improved materials designed for the repair environment. Here’s a breakdown of available brands.
Brand Quality Tiers
- Tier 1 (Premium / Performance): Fel-Pro, Victor Reinz, Cometic Gasket
These are top-tier brands trusted by mechanics. Fel-Pro is a leading choice for its focus on real-world repair conditions, often using proprietary materials to seal imperfect surfaces. Victor Reinz is an OE supplier for many manufacturers and is known for its high-quality, durable materials that resist modern coolants. Cometic is a performance-focused brand, ideal for high-horsepower applications like the Hellcat, using materials like aramid fiber for extreme heat resistance. - Tier 2 (OEM-Equivalent / Standard): Dorman
Dorman is a well-known aftermarket manufacturer that provides a wide range of parts that meet original specifications. They offer a reliable, cost-effective alternative to premium brands and are a solid choice for a standard daily driver. - Tier 3 (Economy): Apex, URO Parts
These brands offer the most budget-friendly options. They can be a viable choice if cost is the primary concern, but may not offer the same longevity or advanced materials as higher-tier brands.
Pro Tip: Consider Other 'While You're In There' Repairs
On the 3.6L Pentastar V6, the intake manifold must be removed to replace the oil filter housing assembly, which is a very common failure point for both oil and coolant leaks. If you are replacing your intake gaskets due to age or a vacuum leak, inspect this housing carefully and consider replacing it at the same time to save on future labor costs.
Cost to Replace Dodge Charger Intake Manifold Gaskets
The cost of the gasket set itself is low, but the job requires significant labor to access the part.
| Item | Estimated Cost |
|---|---|
| New Aftermarket Gasket Set | $20 - $87 |
| New OEM (Mopar) Gasket Set | $40 - $60 |
| Shop Labor | $140 - $300 |
| Total Estimated Cost | $160 - $387 |
Frequently Asked Questions
Can I reuse my old intake manifold gaskets?
No, never reuse intake manifold gaskets. They are single-use parts designed to crush and create a seal. Once removed, they will be compressed and hardened and will not seal properly again, guaranteeing a leak.
Is this a difficult DIY job?
For an experienced DIYer, this is a manageable job that takes a few hours. However, it requires careful removal of fuel lines, electrical connectors, and the throttle body. The most critical steps are thoroughly cleaning the old gasket material off the cylinder heads and intake manifold and ensuring no debris falls into the open engine ports. If you are not comfortable with this, it's best to leave it to a professional.
Do I need to drain the coolant to change the intake gaskets?
For the 3.6L Pentastar V6, you typically do not need to drain the coolant. For Hemi V8 engines (5.7L, 6.4L, 6.2L), the intake manifold has coolant passages, so you will need to partially drain the cooling system before starting the job to prevent coolant from spilling into the engine.
What is the torque spec for the intake manifold bolts?
Torque specifications are critical for ensuring an even seal. For the 3.6L V6, the spec is around 79 inch-pounds (in-lbs), which is very light. For Hemi engines, the spec is also low, typically around 105 in-lbs. Always follow a specific crisscross tightening sequence. It is essential to consult the specific repair manual for your Charger's year and engine before starting.
Technical Specifications
OEM Part Numbers: 68535427AA 5184562AC 5184331AC
Gaskets are typically made from molded rubber or silicone, sometimes on a plastic or steel carrier frame. The design varies between the 3.6L V6 and the various Hemi V8 engines (5.7L, 6.2L, 6.4L). V6 kits contain a set of individual upper and lower gaskets, while V8 kits are typically a one-piece gasket set for each cylinder bank.
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Dodge Charger:
- 🛍️ Shop This Part
- Is Your Charger's Intake Gasket Failing?
- Key Symptoms of a Bad Gasket
- Known Issue for 5.7L Hemi (2022-2023)
- Choosing the Right Aftermarket Gasket Set
- Brand Quality Tiers
- Pro Tip: Consider Other 'While You're In There' Repairs
- Cost to Replace Dodge Charger Intake Manifold Gaskets
- Frequently Asked Questions
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