Small engine components often play a major role in long-term reliability, and the OEM Mopar PCV Seal 4627636AA is no exception. Designed to create a secure seal between the PCV valve and the valve cover, this genuine Mopar replacement helps maintain proper crankcase ventilation while preventing unwanted oil leaks and vacuum leaks. Over time, exposure to engine heat and oil can cause the factory seal to harden, crack, or lose its elasticity, making replacement an important part of preventative maintenance on your Gen 3 HEMI.

The PCV system is responsible for controlling crankcase pressure and routing harmful blow-by gases back into the intake system to be burned during combustion. A damaged or leaking PCV seal can allow unmetered air to enter the engine, potentially affecting idle quality, fuel trims, and overall engine performance. It can also allow oil to seep around the PCV valve, creating unwanted engine bay messes and increasing the chance of dirt or debris entering the valve cover. Replacing the seal with a genuine OEM Mopar component helps restore proper sealing and maintain factory engine operation.

Unlike universal rubber grommets that may not fit correctly, the Mopar 4627636AA PCV Seal is manufactured specifically for compatible Chrysler, Dodge, Jeep, and Ram applications equipped with select Gen 3 HEMI engines. Genuine Mopar replacement parts are built to the same standards as the original factory components, ensuring proper material quality, durability, and fitment. This makes installation simple while helping reduce the risk of premature leaks or fitment issues commonly associated with generic aftermarket replacements.

This PCV seal is an excellent replacement during routine engine maintenance, PCV valve replacement, valve cover service, or engine rebuilds. Since the seal is inexpensive and easy to replace while the PCV valve is removed, many professional technicians recommend replacing both components at the same time. Doing so helps maintain proper crankcase ventilation and reduces the likelihood of future oil leaks that require unnecessary labor later.

At Dusterhoff Racing, we understand that reliable performance begins with quality components, even the smallest ones. Genuine Mopar replacement parts help preserve the reliability and performance of your Gen 3 HEMI while eliminating the uncertainty that often comes with lower-quality aftermarket alternatives. Whether you’re performing preventative maintenance or completing a full engine refresh, the OEM Mopar PCV Seal 4627636AA is a simple upgrade that helps keep your engine sealed and operating as intended.

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Specifications & Features

• Genuine OEM Mopar PCV Seal
• Mopar Part Number: 4627636AA
• Factory replacement PCV valve seal
• Creates a proper seal between the PCV valve and valve cover
• Helps prevent oil leaks
• Helps prevent vacuum leaks
• Supports proper crankcase ventilation
• Direct OEM replacement
• Manufactured to factory specifications
• Durable heat- and oil-resistant rubber construction
• Recommended during PCV valve replacement
• Ideal for preventative maintenance and engine rebuilds
• Engine Compatibility: Select Gen 3 HEMI engines
• Compatible Vehicle
• Compatible Year
• Product Category: Engine Components / PCV System
• Material: OEM rubber
• Color: Black
• Size: OEM made
• Weight: Approximately 0.05 lbs
• Installation Difficulty: Easy
• In
• Brand: Mopar
• Manufacturer: Mopar OEM
• Made to OEM specifications