ALX-PAU-RB-555-034-CLA14 KARPARTS360 Cup Expansion Plug C3500

Review KARPARTS360 For Gmc C3500/k3500 Cup Expansion Plug 1.764 Inch Maximum Diameter for GMC C3500 K3500 1990–2000

Introducing the KARPARTS360 ALX-PAU-RB-555-034-CLA14, a high-performance cup expansion plug specifically designed for GMC C3500 and K3500 models manufactured between 1990 and 2000. This essential component is integral to the cooling system, enabling optimal engine performance and longevity.

The ALX-PAU-RB-555-034-CLA14 is engineered with advanced materials that ensure robustness and durability. Its cup design is engineered to expand and contract with the cooling system, maintaining consistent coolant flow and pressure. This design helps prevent overheating and ensures that your engine operates at its peak efficiency.

This expansion plug features a 1.764 maximum diameter, making it a perfect fit for the cooling systems of the specified GMC models. The plug is also constructed with a high-temperature, corrosion-resistant material that can withstand the extreme conditions of the engine bay.

Installation of the ALX-PAU-RB-555-034-CLA14 is a straightforward process. Simply remove the old expansion plug, ensuring that the cooling system is cooled down and drained, and replace it with the new KARPARTS360 part.

With the KARPARTS360 ALX-PAU-RB-555-034-CLA14, you can trust that your GMC C3500 or K3500 will continue to perform at its best, even in the most demanding conditions. This essential component is a must-have for any vehicle maintenance or repair project, and its high-quality construction ensures that it will provide reliable service for years to come.

In summary, the KARPARTS360 ALX-PAU-RB-555-034-CLA14 is a premium cup expansion plug designed specifically for GMC C3500 and K3500 models from 1990 to 2000. Its advanced design, robust materials, and easy installation make it an essential component for maintaining optimal engine performance and longevity.

Pros and Cons of Buying KARPARTS360 ALX-PAU-RB-555-034-CLA14 for GMC C3500/K3500 1990-2000: Cup Expansion Plug

The KARPARTS360 ALX-PAU-RB-555-034-CLA14 is a cup expansion plug designed for GMC C3500/K3500 vehicles manufactured between 1990 and 2000. This part ensures proper engine cooling and function. In this analysis, we will discuss the advantages and disadvantages of purchasing this cup expansion plug from KARPARTS360.

1. OEM Quality: This part is a direct OEM replacement, ensuring a perfect fit and reliable performance.

2. High-Quality Material: The cup expansion plug is made of durable materials, providing extended service life.

3. Quick Delivery: KARPARTS360 offers fast shipping, ensuring you receive the part in a timely manner.

4. Competitive Pricing: The price of the ALX-PAU-RB-555-034-CLA14 is competitive compared to other aftermarket and OEM options.

1. Availability: Depending on your location, this part may not be readily available in local auto parts stores, making online purchasing the only option.

2. Installation Complexity: Installing the cup expansion plug can be a challenging process for those without mechanical experience.

3. Potential Shipping Delays: Although KARPARTS360 offers fast shipping, there is still a possibility of delivery delays.

The KARPARTS360 ALX-PAU-RB-555-034-CLA14 is a high-quality, reliable, and affordable option for replacing the cup expansion plug on your GMC C3500/K3500 from 1990 to 2000. Despite the potential complexity of installation and possible shipping delays, the advantages of this part, such as its OEM quality and competitive pricing, make it a worthwhile investment.

If you are in need of a replacement cup expansion plug for your GMC C3500/K3500, we recommend purchasing the KARPARTS360 ALX-PAU-RB-555-034-CLA14. This part offers the benefits of OEM quality, durability, and competitive pricing. However, if you are not comfortable with the installation process or have concerns about shipping times, consider consulting a professional mechanic for assistance.

Details:

Free fast shipping 1 year warranty 100% money back 30-day guarantee. Misc notes 1: expansion plug. The numbers have to match exactly or else it will not fit. Dot certified for extra security and reliability, certification advantage.

Karparts360 for Gmc C3500/k3500 1990 -2000 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. Factory sealed - brand new in box. 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. Misc notes 2.

specifications engineblocksam:

• for models: C3500, K3500
• for makes: Gmc
• for years: 1990–2000
• brand: Karparts360
• mpn: Alx-pau-rb-555-034-cla14
• 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: 800111365551

general engineblocksam:

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

payments engineblocksam:

• wallet: paypal
• other
• credit card: visa

shipping engineblocksam:

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

seller engineblocksam:

• rating: 99.5%
• # reviews: 108970
• city: west chicago, il

returns engineblocksam:

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

offer engineblocksam:

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