One Stop Solutions 856 Radiator

Reliable Radiator Replacement for Buick and Cadillac Models

The One Stop Solutions radiator part number 856 is engineered to provide dependable cooling performance for select Buick and Cadillac vehicles. Designed specifically for models such as the Allante, Commercial Chassis, DeVille, Eldorado, Fleetwood, Park Avenue, and Seville, this radiator ensures proper fitment and efficient heat dissipation.

• Core dimensions: 30 1/2" height, 17 1/4" width, and 1-1/4" thickness
• Crossflow design with premium grade plastic tanks and PA core material
• Includes transmission and engine oil coolers with concentric and plated types respectively
• Inlet and outlet header lengths of 18 3/4" with 2 7/16" widths
• Drop-in fit with all necessary fittings and hardware for hassle-free installation
• Tested up to three times during production for quality assurance
• Engineering enhancements to improve cooling efficiency and extend service life

Technical Specifications and Features

This radiator features a single-row core constructed from PA material, measuring 30 1/2 inches in height and 17 1/4 inches in width, with a core thickness of 1-1/4 inches. The crossflow design optimizes coolant flow and heat exchange. Both inlet and outlet headers measure 18 3/4 inches in length and 2 7/16 inches in width, accommodating inlet and outlet diameters of 1 5/16 inches and 1 9/16 inches respectively. The radiator includes a concentric transmission oil cooler with a 1 1/4 inch diameter and fittings spaced 11 1/2 inches apart, as well as a plated engine oil cooler with fittings also 11 1/2 inches apart. Plastic tanks and premium-grade tubes, fins, and headers contribute to durability and performance.

Compatible Vehicles and Applications

This radiator is compatible with the following Buick and Cadillac models:

• Buick Allante
• Buick Commercial Chassis
• Cadillac DeVille
• Cadillac Eldorado
• Cadillac Fleetwood
• Cadillac Park Avenue
• Cadillac Seville

Common Issues Addressed by This Radiator

• Overheating due to worn or damaged radiator cores
• Transmission fluid overheating from faulty or missing transmission oil coolers
• Coolant leaks caused by cracked plastic tanks or corroded components
• Reduced cooling efficiency from clogged or bent fins
• Engine oil temperature regulation problems due to engine oil cooler failure

Installation Notes and Tips

The One Stop Solutions radiator 856 is designed for a direct replacement with a drop-in fit, form, and function. All necessary fittings and hardware are included to facilitate a straightforward installation. Components are pre-fitted and torqued to factory specifications, reducing installation time and ensuring proper sealing. It is recommended to inspect hoses and clamps during installation and replace if necessary to maintain system integrity.

Quality Assurance and Warranty

Each radiator undergoes up to three quality tests during production to verify performance and durability. The product incorporates engineering enhancements to address original design limitations and improve longevity. While a cap is not included, the radiator meets OE performance standards. Please refer to One Stop Solutions warranty terms for coverage details.