Mishimoto 55-59 GM 3100 Series X-Line Aluminum Radiator

If you're looking to upgrade your GM 3100 Series parts, look no further! The Mishimoto 1955--1959 GM 3100 Series Truck X-Line Performance Aluminum Radiator provides your car with enhanced reliability, improved cooling efficiency, and is an ideal upgrade for the brittle stock radiator. Whether you use your classic for daily driving or take it to the track, many people overlook the importance of installing an upgraded radiator in their engine. A stock radiator cannot handle the heat that comes along with having a great deal of horsepower. The Mishimoto GM 3100 Series Truck X-Line Aluminum Radiator is manufactured using durable aircraft-quality aluminum end tanks, precision TIG-welded to an efficient brazed aluminum core. The inlet and outlets provide precise leak-free connections. This GM 3100 Series performance radiator also includes a Magnetic Oil Drain Plug, which effectively removes metal fragments circulating in the cooling system. As with all our products, this GM 3100 Series radiator includes the Mishimoto Lifetime Warranty, ensuring superior product quality and craftsmanship.

Additional Information

Aluminum radiator engineered for efficient heat dissipation and optimal engine cooling. Precision-fit design ensures easy installation, corrosion resistance, and reliable performance across varied driving conditions.

Application Summary

1955-1957 Chevrolet Truck 3100 4.3 Liter Hydramatic, 1955-1957 Chevrolet Truck 3100 4.3 Liter SM318, 1955-1957 Chevrolet Truck 3100 4.3 Liter SM420

Part Type

Radiator

• 100-percent aluminum construction provides greater heat and pressure tolerance, better heat dissipation, increased durability, improved cooling efficiency, and improved structural rigidity
• 3-row core
• Increased coolant capacity directly results in better cooling efficiency and reduced engine temperatures

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Product Details

Product Downloads

#	Document Type	Download
1.	Installation Instructions

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Reference Information

Radiator, X-Line, Crossflow Style, Three-row, Aluminum, Natural, Chevy, GMC, Automatic, Each

Upgrade your cooling system with Mishimoto X-Line radiators! These lightweight, triple-core radiators enhance the performance and cooling efficiency of your engine, whether it's a daily driver or a race application. X-Line radiators feature 100 percent brazed aluminum construction and polished end tanks, and each includes a Mishimoto high-pressure 1.3 bar radiator cap. The units are available in both crossflow and downflow styles, as well as a variety of sizes, for fitment on countless makes/models. Mishimoto X-Line radiators help your engine reach its full potential!