ALX-PAU-RB-555-031-CLA1 KARPARTS360 Cup Expansion Plug

Review KARPARTS360 Cup Expansion Plug 1.655 Inch Maximum Diameter 1.642 Minimum

Introducing the KARParts360 ALX-PAU-RB-555-031-CLA1 Cup Expansion Plug from KAR Parts, a high-quality replacement part designed specifically for Mercedes-Benz vehicles. This essential engine component is engineered to meet or exceed OEM specifications for reliable performance and durability.

The ALX-PAU-RB-555-031-CLA1 Cup Expansion Plug is a critical part of your engine cooling system. Its primary function is to expand and contract with the engine coolant inside the cooling system, ensuring efficient heat transfer and maintaining optimal engine temperature.

This particular plug has a maximum diameter of 1.655 inches and a minimum diameter of 1.642 inches, making it a perfect fit for various Mercedes-Benz models requiring this size cup expansion plug. The plug features a robust design, with a durable material that can withstand the extreme temperatures and pressures inside the engine cooling system.

The KARParts360 ALX-PAU-RB-555-031-CLA1 Cup Expansion Plug is an excellent choice for Mercedes-Benz vehicle owners seeking a reliable replacement part for their cooling system. Its OEM-like quality ensures a precise fit, while its robust design guarantees long-lasting performance. By choosing this plug, you are investing in the ongoing health and longevity of your Mercedes-Benz engine.

In summary, the KARParts360 ALX-PAU-RB-555-031-CLA1 Cup Expansion Plug is a high-quality replacement part designed for Mercedes-Benz engines. With its precise dimensions and robust design, it guarantees a reliable and efficient cooling system that contributes to the overall performance and longevity of your vehicle.

The Karparts360 ALX-PAU-RB-555-031-CLA1 cup expansion plug is a part used in the cooling system of Mercedes-Benz CLA Class vehicles. This plug helps regulate the coolant pressure and maintain the optimal engine temperature. Let's discuss the potential pros and cons of purchasing this part.

1. OEM Quality: This cup expansion plug is a direct OEM (Original Equipment Manufacturer) replacement for Mercedes-Benz CLA Class vehicles. Using an OEM part can ensure proper fitment, function, and durability.

2. Reliable: A faulty cup expansion plug can lead to overheating issues, coolant leaks, or engine damage. Replacing the old part with a new OEM one can help prevent these problems and improve your vehicle's overall performance and longevity.

3. Easy Installation: The cup expansion plug is a relatively simple part to replace, and the process usually takes around 30 minutes to an hour. Most mechanics and DIY enthusiasts can easily install this part without requiring extensive tools or expertise.

1. Price: The Karparts360 ALX-PAU-RB-555-031-CLA1 cup expansion plug may be more expensive compared to aftermarket alternatives. However, the OEM quality, reliability, and ease of installation might justify the cost for some customers.

2. Availability: Depending on your location and the specific Mercedes-Benz CLA Class vehicle you own, finding this exact OEM cup expansion plug at a local auto parts store might be challenging. In such cases, buying it online from reputable suppliers like Karparts360 could be the most convenient option.

The decision to purchase the Karparts360 ALX-PAU-RB-555-031-CLA1 cup expansion plug ultimately depends on your priorities as a vehicle owner. If you value OEM quality, reliability, and ease of installation, this part might be an excellent investment for your Mercedes-Benz CLA Class vehicle. Conversely, if you are cost-conscious and prefer to save money, you might consider exploring aftermarket alternatives.

If you decide to purchase the Karparts360 ALX-PAU-RB-555-031-CLA1 cup expansion plug, make sure to order it from a trusted and reputable auto parts supplier to ensure its authenticity and quality. Additionally, consider checking with your Mercedes-Benz dealership or an experienced mechanic to confirm that this is indeed the correct part for your specific vehicle model and year.

Details:

Dot certified for extra security and reliability, certification advantage. The numbers have to match exactly or else it will not fit. Product info: - part: cup expansion plug, material: steel, describe type: type, maximum diameter: 1.655 inches, minimum 1.642 packaging box, package contents: quantity: 10, aftermarket replacement parts: each component undergoes comprehensive evaluation to meet our safety standards and high-quality criteria, ensuring it meets oem specifications. Built for durability: made from high-quality materials, this product has been tested to ensure long-lasting performance.

Factory sealed - brand new in box. Free fast shipping 1 year warranty 100% money back 30-day guarantee. All products ship in pristine and original manufacturer packaging. KARPARTS360 cup expansion plug steel 1.655 inches maximum diameter 1.642 minimum diameter: item condition: brand new in original box, oem part #: part slink inches.

Misc notes 1: expansion plug. High quality aftermarket replacement for oem parts.

specifications engineblocksam:

• brand: Karparts360
• mpn: Alx-pau-rb-555-031-cla1
• type: Cup Expansion Plug
• material: Steel
• item weight: 0.5600
• fitment type: Direct Replacement
• generic keywords 1: Part
• intended use: Automobiles
• misc fitment notes: See Notes
• manufacturer warranty: 1 Year
• upc: 800111365254

payments engineblocksam:

• wallet: paypal
• credit card: diners-club
• other

seller engineblocksam:

• rating: 99.5%
• city: west chicago, il
• # reviews: 109006

returns engineblocksam:

• paid by: seller
• time: 30 days
• policy: returns accepted

shipping engineblocksam:

• type: fixed
• class: expedited
• service: expedited
• transit: 5-10 days

general engineblocksam:

• category: Auto Parts > Car Truck Accessories > Engines > Blocks

offer engineblocksam:

• quantity: 8
• availability: in stock
• options: ship-to-home
• sold #: 27
• started: december 24, 2025