ALX-PAU-RB-555-030-CLA1 KARPARTS360 Cup Expansion Plug C2500

Review KARPARTS360 For Chevy C2500/k2500 Cup Expansion Plug 1.643 Inch Maximum Diameter for CHEVY C2500 K2500 1997–2000

Introducing the KARPart No. ALX-PAU-RB-555-030-CLA1, a top-tier replacement cup expansion plug specifically designed for Chevrolet C2500 and K2500 models manufactured between 1997 and 2000. This premium part is an essential component of your vehicle's cooling system, ensuring that coolant flows efficiently and evenly throughout the engine.

The ALX-PAU-RB-555-030-CLA1 is meticulously engineered to meet or exceed original equipment manufacturer (OEM) specifications. Its high-quality materials, including heavy-duty ceramic insulators and robust metal components, ensure superior durability and resistance to wear and tear. This translates into reliable operation and extended service life, giving you peace of mind on the road.

One of the standout features of this expansion plug is its 1.643 maximum cup volume, which is precisely calibrated to match the specifications of your Chevrolet C2500 or K2500 engine. This ensures a perfect fit and optimal cooling system performance, helping to prevent overheating, engine damage, and potentially costly repairs.

The ALX-PAU-RB-555-030-CLA1 is also designed with ease of installation in mind. Its streamlined design and straightforward installation process make it an excellent choice for DIY enthusiasts and professional mechanics alike. The plug comes complete with all necessary hardware and clear, easy-to-follow instructions to guide you through the replacement process.

By choosing the KARPart ALX-PAU-RB-555-030-CLA1, you're investing in a top-quality replacement component that will help keep your Chevrolet C2500 or K2500 running smoothly and efficiently. Trust the experts at KARParts360 for reliable, OEM-grade parts that deliver superior performance and value.

The Karparts360 ALX-PAU-RB-555-030-CLA1 is a cup expansion plug for Chevy C2500/K2500 trucks manufactured between 1997 and 2000. This part is essential for the engine's cooling system, and its failure can lead to overheating issues. Let's discuss the pros and cons of buying this specific cup expansion plug from Karparts360.

1. OEM Quality: This part is an original equipment manufacturer (OEM) replacement, ensuring it is a perfect fit and functions identically to the original part.

2. Reliable: As a trusted automotive parts supplier, Karparts360 ensures the quality of their products, providing customers with reliable and long-lasting parts.

3. Convenient: Buying from a reputable supplier like Karparts360 guarantees that the part will arrive at your doorstep, saving time and effort compared to visiting a physical store.

4. Warranty: This part comes with a warranty, offering peace of mind and protection against any potential defects or malfunctions.

1. Cost: The price of this cup expansion plug may be higher than some aftermarket alternatives. However, the OEM quality and reliability may justify the investment.

2. Availability: Depending on the location and shipping speed, it may take some time for the part to arrive.

The Karparts360 ALX-PAU-RB-555-030-CLA1 is a high-quality, OEM replacement cup expansion plug for Chevy C2500/K2500 trucks manufactured between 1997 and 2000. Although it may cost more than some aftermarket alternatives, its reliability, convenience, and peace of mind offered by the warranty make it a worthwhile investment. If you require a dependable and long-lasting part for your vehicle, the Karparts360 cup expansion plug is an excellent choice.

Details:

Factory sealed - brand new in box. KARPARTS360 for Chevy C2500/k2500 1997 1998 1999 2000 cup expansion plug steel 1.643 inches maximum diameter 1.63 minimum replacement 2121198, 3144643: item condition: brand new in original box, oem part #:2121198, part slink #: material. Warranty, all carlights360 products come with a 1-year limited warranty. Misc notes 2.

Dot certified for extra security and reliability, certification advantage. Misc notes 1: expansion plug. Built for durability: made from high-quality materials, this product has been tested to ensure long-lasting performance. High quality aftermarket replacement for oem parts.

All products ship in pristine and original manufacturer packaging. The numbers have to match exactly or else it will not fit.

specifications engineblocksam:

• for models: C2500, K2500
• for makes: Chevy
• for years: 1997–2000
• brand: Karparts360
• mpn: Alx-pau-rb-555-030-cla1
• type: Cup Expansion Plug
• material: Steel
• oe/oem part number: 2121198
• item weight: 0.6900
• fitment type: Direct Replacement
• generic keywords 1: Part
• oem equivalent part number 2: 3144643
• intended use: Automobiles
• misc fitment notes: See Notes
• manufacturer warranty: 1 Year
• upc: 800111365148

seller engineblocksam:

• rating: 99.5%
• city: west chicago, il
• # reviews: 109043

offer engineblocksam:

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

payments engineblocksam:

• credit card: visa
• wallet: paypal
• other

returns engineblocksam:

• time: 30 days
• paid by: seller
• 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