63FS74Q GENUINE EXPANSION PLUG Cylinder Head Rear C350

Review GENUINE EXPANSION PLUG 30mm On Cylinder Head Rear Fits Mercedes for MERCEDES C350 2006–2015

Mercedes-Benz C350 30-cylinder Head Expansion Plug (Rear, 63FS74Q, 2006-2015)

This Mercedes-Benz C350 expansion plug is a crucial component of your vehicle's engine cooling system. Designed specifically for 30-cylinder heads with the rear 63FS74Q designation, this plug is compatible with Mercedes-Benz C350 models produced between 2006 and 2015.

The expansion plug serves a vital function in the engine cooling system. It is designed to seal the coolant passages in the cylinder head during engine compression, preventing coolant from entering the combustion chamber. This plug ensures optimal engine performance and cooling efficiency.

Manufactured to meet the highest standards of quality, this expansion plug is a direct OEM replacement for the original equipment used in your Mercedes-Benz C350. It is precision-engineered from high-quality materials to ensure a perfect fit, reliable sealing, and long-lasting durability.

This expansion plug features a unique design that allows it to expand and contract with the engine's compression cycle. The plug's seal is made from a high-temperature, compression-resistant material that can withstand the extreme pressures and temperatures inside the engine cylinder.

Installing this expansion plug is a straightforward process that can be completed by most DIY enthusiasts or professional mechanics. It comes with clear installation instructions, ensuring a hassle-free experience.

By using a genuine Mercedes-Benz expansion plug, you can maintain the performance, efficiency, and longevity of your C350's engine cooling system. This plug is a worthwhile investment for any Mercedes-Benz C350 owner who wants to keep their vehicle running at its best.

Buying an expansion plug for a 30 cylinder head (63FS74Q) of a Mercedes-Benz C350 model from the years 2006 to 2015 involves considering both advantages and disadvantages to make an informed decision.

1. Improved Engine Performance: A faulty expansion plug can lead to poor engine performance and decreased fuel efficiency. Replacing it with a new one can help improve the overall performance of the engine.

2. Preventing Engine Damage: A damaged expansion plug can cause coolant to leak into the cylinders, leading to engine damage. Replacing the expansion plug regularly can help prevent such damage and save you from costly repairs in the future.

3. Longer Engine Life: Regular replacement of expansion plugs can help increase the longevity of the engine by ensuring that it is functioning optimally.

1. Cost: The cost of buying an expansion plug for a Mercedes-Benz C350 can vary depending on the brand and quality of the plug. It may be an expense that some people might want to avoid.

2. Labor Costs: If you are not comfortable replacing the expansion plug yourself, you will need to pay for labor costs to have it done by a professional mechanic.

3. Time Consuming: Replacing an expansion plug can be a time-consuming process, especially if you are not experienced in doing it yourself.

The decision to buy an expansion plug for a Mercedes-Benz C350 depends on your priorities and circumstances. If you value engine performance, longevity, and preventing potential damage, then the advantages of buying a new expansion plug outweigh the disadvantages. However, if you are budget-conscious and prefer to avoid labor costs and the time it takes to replace the plug yourself, then the disadvantages may be more significant. Ultimately, it's essential to weigh the pros and cons and make an informed decision based on your specific situation.

If you decide to buy a new expansion plug for your Mercedes-Benz C350, ensure that you purchase a high-quality one from a reputable brand. A good option is to buy an OEM (Original Equipment Manufacturer) plug, as it is specifically designed for your vehicle and can help ensure optimal engine performance. Additionally, consider purchasing a set of plugs to save on costs in the future, as they typically need to be replaced every 50,000 to 100,000 miles. If you are not confident in replacing the plug yourself, consider having it done by a trusted mechanic to ensure that it is installed correctly.

Details:

Notes: Expansion Plug 30mm - on cylinder head. Position: rear.

specifications engineblocksam:

• for models: C350
• for makes: Mercedes
• for years: 2006–2015
• brand: Genuine Expansion Plug
• mpn: 63fs74q
• part type: Cylinder Head
• placement on vehicle: Rear
• part details: Expansion Plug
• fit years: 2008 2006 2007 2009 2010 2011 2012 2013 2014 2015
• cs-sku: 400

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• started: may 19, 2025
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