Dodge Durango Engine Valve Cover Replacement Guide (2017-2025)
If you smell burning oil, your Durango's valve covers might be the reason.
- A burning oil smell is the #1 symptom of a leaking valve cover on a Durango.
- For 3.6L V6 engines, always inspect the oil filter housing for leaks before blaming the valve covers.
- A Technical Service Bulletin (TSB) recommends replacing the entire valve cover, not just the gasket, for a permanent repair.
- The passenger-side replacement is significantly more difficult due to component and wiring harness obstruction.
Is Your Durango's Valve Cover Leaking?
A leaking valve cover is a common problem on the 2017-2025 Dodge Durango, especially as it gets older. The constant exposure to engine heat causes the plastic cover to potentially warp and the built-in gaskets to become hard and brittle. When the seal fails, oil seeps out, causing a variety of noticeable issues.
Critical Tip for 3.6L V6 Owners
Before you replace a valve cover on a 3.6L Pentastar V6, you must check for a different common leak. The oil filter housing, located in the valley between the cylinder heads, is known to crack. When it fails, oil runs down the back of the engine, perfectly mimicking a valve cover leak. Always inspect the area around the oil filter for pooled oil before buying parts to avoid a misdiagnosis.
Symptoms of a Failing Valve Cover
- Burning Oil Smell: This is the most common sign. Oil drips from the leaking cover onto the hot exhaust manifold, creating a distinct burning smell that you'll notice inside or outside the vehicle.
- Visible Oil and Grime: You will see wet, oily patches and caked-on dirt on the sides of the engine, directly below the valve covers.
- Oil in Spark Plug Wells: The valve cover gasket set includes seals for the spark plug tubes. When these fail, oil can pool around the spark plugs and ignition coils. This can lead to a rough idle, hesitation, and a flashing check engine light with misfire codes (P0300-P0306).
- Low Engine Oil: A persistent leak will cause your oil level to drop over time, forcing you to top it off between oil changes.
Choosing the Right Aftermarket Part: Mopar vs. Dorman
When it's time to replace your valve cover, you have two main choices: OEM from Mopar or an aftermarket part from a brand like Dorman.
- Mopar (OEM): This is the original part that your Durango came with from the factory. A Technical Service Bulletin (TSB) was issued for right-side valve cover leaks, indicating that Chrysler updated the part's design to better prevent leaks. Choosing a new Mopar part ensures you get this updated design.
- Dorman (Aftermarket): Dorman is a major aftermarket manufacturer that produces direct-fit replacement parts. Their valve covers are designed to match the original's fit and function and are a cost-effective alternative to the dealer part. While some mechanics have mixed opinions on aftermarket plastics, Dorman is a widely used brand for this type of repair.
Pro Tip: Replace the Cover, Not Just the Gasket
A TSB (S2209000002) from the manufacturer specifically notes that for a persistent right-side leak, the valve cover itself should be replaced. The original cover may have warped from heat, and a new gasket alone won't create a perfect seal on a warped surface. Replacing the entire valve cover assembly is the correct way to ensure a long-lasting repair.
Durango Valve Cover Replacement Costs
The cost depends on whether you do the job yourself or take it to a shop. The passenger side is more difficult and may cost more in labor.
| Part/Service | Estimated Cost |
|---|---|
| New Aftermarket Valve Cover (Dorman) | $262 - $440 |
| New OEM Valve Cover (Mopar) | $350 - $550 |
| Shop Labor Cost (per side) | $150 - $300 |
| Total Professional Replacement (per side) | $412 - $850 |
Frequently Asked Questions
Can I just replace the valve cover gasket?
While you can, it is not recommended for a permanent fix. The original plastic valve cover can warp from engine heat. A new gasket on a warped cover will likely leak again. A manufacturer TSB advises replacing the entire valve cover to fix a recurring leak, as the part itself was updated.
Why is the passenger side replacement harder?
On both the 3.6L V6 and 5.7L V8 engines, the passenger-side (right-side) valve cover is more difficult to access. This is because major wiring harnesses and other components are routed over the top of the cover, requiring more time and effort to move out of the way.
What if I see oil in the spark plug wells?
Oil in the spark plug wells is a clear sign that the spark plug tube seals, which are part of the valve cover gasket assembly, have failed. This can damage your ignition coils and spark plugs, causing engine misfires. The valve cover must be replaced to fix this leak.
Is Dorman a good brand for Durango valve covers?
Dorman is a well-known aftermarket brand that offers a cost-effective alternative to OEM parts. Their parts are designed to be direct replacements and are widely used by both DIYers and professional shops. For a non-performance plastic component like a valve cover, Dorman is generally considered a reliable choice.
Helpful Videos
Technical Specifications
OEM Part Numbers: 5184331AC 5184332AC 68599013AA 68599014AA
Relevant Technical Service Bulletin (TSB): S2209000002 / NHTSA ID: 10212291. This TSB addresses right valve cover leaks and recommends cover replacement due to an updated part design.
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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.
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- 🎬 Helpful Videos
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- Is Your Durango's Valve Cover Leaking?
- Critical Tip for 3.6L V6 Owners
- Symptoms of a Failing Valve Cover
- Choosing the Right Aftermarket Part: Mopar vs. Dorman
- Pro Tip: Replace the Cover, Not Just the Gasket
- Durango Valve Cover Replacement Costs
- Frequently Asked Questions
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