ALX-PAU-RB-555-034-CLA13 KARPARTS360 Cup Expansion Plug C2500

Review KARPARTS360 For Gmc C2500/k2500 Cup Expansion Plug 1.764 Inch Max Diameter for GMC SUBURBAN C2500 K2500 1992–1999

Introducing the KARPart No. ALX-PAU-RB-555-034-CLA13, a crucial component for the cooling system of your 1992-1999 GMC Suburban C2500/K2500. This cup expansion plug plays a vital role in ensuring the efficient operation of your engine's cooling system.

The ALX-PAU-RB-555-034-CLA13 is a premium quality product manufactured to exacting standards. It is engineered using high-grade materials to provide superior durability and reliability. The plug features a robust design with a threaded connection, ensuring a secure fit in your vehicle's cooling system.

This expansion plug is specifically designed for the 1.764-inch cup on the GMC Suburban C2500/K2500 models produced between 1992 and 1999. It is an essential replacement for a worn-out or faulty plug, ensuring that your cooling system functions optimally.

The ALX-PAU-RB-555-034-CLA13's design allows it to effectively expand and contract with the cooling system's pressure, preventing damage to the engine due to excessive heat or pressure. Its precise fit and reliable function are crucial in maintaining the temperature balance of your engine, ensuring optimal performance and fuel efficiency.

Installing the ALX-PAU-RB-555-034-CLA13 is a straightforward process. Simply remove the old expansion plug, clean the thread, and install the new one, ensuring a secure and snug fit. With its high-quality construction and precise fit, you can trust the ALX-PAU-RB-555-034-CLA13 to provide reliable service for years to come.

In summary, the KARPart No. ALX-PAU-RB-555-034-CLA13 is a crucial component for the cooling system of your 1992-1999 GMC Suburban C2500/K2500. Its robust design, precise fit, and superior materials make it a reliable and effective solution for maintaining the optimal temperature balance of your engine. Trust KARPart for all your automotive replacement needs.

The ALX-PAU-RB-555-034-CLA13 cup expansion plug by KarParts360 is a crucial component for the cooling system of GMC Suburban models from 1992 to 1999, specifically for C2500 and K2500 variants. This part ensures the proper functioning of the engine's cooling system by allowing the coolant to expand and contract with temperature changes.

1. OEM Quality: This part is an Original Equipment Manufacturer (OEM) replacement, meaning it is manufactured to the same specifications as the original part that came with your vehicle.

2. Reliability: The cup expansion plug is a vital component for your vehicle's cooling system. A reliable and functioning cup expansion plug can prevent potential engine damage and overheating.

3. Convenience: Purchasing from a trusted auto parts supplier like KarParts360 ensures that you are getting the correct part for your specific vehicle model and year, saving you time and potential frustration in searching for the right part.

1. Cost: Replacing a cup expansion plug might not be a cheap repair, but it is a necessary one. The cost of this part will depend on various factors, such as the dealership versus aftermarket pricing and any additional labor costs.

2. Installation Complexity: Installing the cup expansion plug might require some mechanical knowledge or professional assistance, which could add to the overall cost of the repair.

The ALX-PAU-RB-555-034-CLA13 cup expansion plug is a necessary replacement for the cooling system of GMC Suburban models from 1992 to 1999. By choosing a reputable auto parts supplier like KarParts360, you can ensure that you are getting an OEM quality part that will provide reliability and convenience. While the cost and installation complexity might be factors to consider, the peace of mind that comes with a properly functioning cooling system is invaluable.

If you are in need of a cup expansion plug for your GMC Suburban and want to ensure a reliable and proper fit, it is recommended to purchase the ALX-PAU-RB-555-034-CLA13 part from a trusted auto parts supplier like KarParts360. While the cost and installation complexity might be considerations, the overall benefits and peace of mind that come with a well-functioning cooling system make it a worthwhile investment.

Details:

Karparts360 for Gmc C2500/k2500 Suburban 1992 -1999 cup expansion plug steel 1.764 inches maximum diameter 1.751 minimum replacement 2379621, 3743389: item condition: brand new in original box, oem part #:2379621, part slink #: material. Built for durability: made from high-quality materials, this product has been tested to ensure long-lasting performance. All products ship in pristine and original manufacturer packaging. Factory sealed - brand new in box.

Misc notes free fast shipping 1 year warranty 100% money back 30-day guarantee. The numbers have to match exactly or else it will not fit. High quality aftermarket replacement for oem parts.

Dot certified for extra security and reliability, certification advantage. Misc notes 1: expansion plug.

specifications engineblocksam:

• for models: C2500, K2500, Suburban
• for makes: Gmc
• for years: 1992–1999
• brand: Karparts360
• mpn: Alx-pau-rb-555-034-cla13
• type: Cup Expansion Plug
• material: Steel
• oe/oem part number: 2379621
• item weight: 0.7100
• fitment type: Direct Replacement
• generic keywords 1: Part
• oem equivalent part number 2: 3743389
• intended use: Automobiles
• misc fitment notes: See Notes
• manufacturer warranty: 1 Year
• upc: 800111365544

returns engineblocksam:

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

offer engineblocksam:

• quantity: 8
• sold #: 28
• options: ship-to-home
• availability: in stock
• started: december 24, 2025

seller engineblocksam:

• # reviews: 109069
• rating: 99.5%
• city: west chicago, il

shipping engineblocksam:

• service: expedited
• type: fixed
• class: expedited
• transit: 6-12 days

general engineblocksam:

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

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