One Stop Solutions 1538 Radiator

Reliable Radiator Replacement for Chevrolet and GMC Vehicles

The One Stop Solutions radiator part number 1538 is designed specifically for Chevrolet Express 3500, GMC G20, G30, Savana 2500, and Savana 3500 models. Engineered to meet OE performance standards, this radiator offers a durable and efficient cooling solution for your vehicle's engine and transmission systems.

• Hassle free installation with drop-in fit, form, and function
• Includes transmission and engine oil coolers with plated cooler types
• Core dimensions: 31 15/16" height, 17 1/4" width, and 2-3/16" thickness
• Constructed with premium grade plastic tanks and PA core material
• Crossflow design with two core rows for improved cooling efficiency
• Fittings and components torqued to factory specifications
• Tested up to three times during production for quality assurance

Detailed Radiator Specifications and Features

This radiator features a crossflow core design measuring 31 15/16 inches in height and 17 1/4 inches in width, with a core thickness of 2-3/16 inches. The core is made from PA material, paired with durable plastic tanks to ensure longevity and resistance to corrosion. Both the inlet and outlet header lengths are 18 7/16 inches, with widths of 3 1/8 inches, supporting efficient coolant flow. The radiator includes a transmission oil cooler and an engine oil cooler, both utilizing plated cooler types with fittings spaced 11 1/2 inches apart. The inlet and outlet diameters are 1 13/16 inches, designed to match factory specifications for Chevrolet Express 3500 and GMC Savana models. This radiator is engineered with enhancements to address original design limitations, providing improved cooling performance and extended service life.

Compatible Vehicles and Common Applications

This radiator is compatible with the following vehicles:

• Chevrolet Express 3500
• GMC G20 and G30
• GMC Savana 2500 and 3500

It is ideal for addressing issues such as:

• Overheating due to radiator core damage or clogging
• Transmission fluid overheating caused by faulty transmission oil cooler
• Engine oil temperature regulation problems
• Leaks or cracks in plastic tanks or core
• Reduced cooling efficiency from worn or damaged components

Installation Notes and Tips

The One Stop Solutions radiator 1538 is designed for a direct replacement with all necessary fittings and hardware included. Installation requires no modifications, ensuring a straightforward swap for Chevrolet Express 3500 and GMC Savana 2500/3500 models. It is recommended to inspect hoses and clamps during installation and replace if necessary to maintain optimal cooling system integrity. Proper torque specifications are applied to all fittings and components to meet factory standards.

Quality Assurance and Warranty Information

Each radiator undergoes rigorous testing up to three times during production to ensure reliability and performance. Components such as tubes, fins, headers, and tanks are manufactured from premium materials and assembled to precise factory specifications. While a cap is not included with this radiator, the product is engineered to meet or exceed OE quality standards. Please refer to One Stop Solutions warranty policy for specific coverage details.