One Stop Solutions 1521 Radiator

Reliable Radiator Replacement for Chevrolet and GMC Trucks

The One Stop Solutions radiator part number 1521 is engineered to provide dependable cooling performance for Chevrolet and GMC heavy-duty trucks. Designed specifically for models like the Chevrolet C2500, C2500 Suburban, C3500, and GMC K2500, K2500 Suburban, K3500, this radiator ensures proper fitment and efficient heat dissipation.

• Hassle free installation with drop-in fit, form, and function
• O.E. performance and exceptional quality components
• Engineering enhancements for improved cooling and extended service life
• Premium grade tubes, fins, headers, and plastic tanks
• Includes transmission and engine oil coolers with plated cooler types
• Crossflow core design with dual rows for efficient heat exchange
• Tested multiple times during production for quality assurance

Technical Specifications and Features

This radiator features a core height of 34 1/8 inches, core width of 19 7/16 inches, and a core thickness of 2-3/16 inches, providing ample surface area for heat dissipation. The crossflow design enhances coolant flow and cooling efficiency. Both inlet and outlet header lengths measure 20 11/16 inches with widths of 3 1/8 inches, constructed from durable materials to withstand heavy-duty use. The core material is PA, while the tanks are made of plastic, balancing durability and weight.

Included are transmission and engine oil coolers, both plated for corrosion resistance and efficient heat transfer. The transmission oil cooler fittings are spaced 11 1/2 inches apart, matching factory specifications. The radiator supports inlet and outlet diameters of 1 3/8 inches and 1 9/16 inches respectively, ensuring compatibility with original cooling system hoses.

Compatible Vehicles and Applications

This radiator is compatible with the following Chevrolet and GMC models:

• Chevrolet C2500 and C2500 Suburban
• Chevrolet C3500
• GMC K2500 and K2500 Suburban
• GMC K3500

It is designed to replace original equipment radiators in these models, maintaining proper cooling system performance and reliability.

Common Issues Addressed by This Radiator

• Overheating due to clogged or damaged radiator cores
• Leaks in plastic tanks or header areas
• Reduced cooling efficiency from worn or corroded components
• Transmission fluid overheating caused by faulty oil coolers
• Engine oil temperature regulation problems

Installation Notes and Tips

The One Stop Solutions radiator 1521 is designed for a direct replacement with all necessary fittings and hardware included. Installation requires standard hand tools and basic mechanical knowledge. Ensure all hose connections match the inlet and outlet diameters of 1 3/8 inches and 1 9/16 inches respectively. Torque all fittings to factory specifications to prevent leaks. It is recommended to flush the cooling system before installation to remove debris and contaminants.

Quality Assurance and Warranty

Each radiator undergoes up to three quality tests during production to verify performance and durability. Components are assembled and torqued to factory specifications to ensure reliability. The product includes engineering enhancements addressing original design weaknesses to improve lifespan. Warranty details should be confirmed with the distributor or manufacturer, as coverage may vary.