One Stop Solutions 921 Radiator

Reliable Radiator Replacement for Buick, Oldsmobile, and Pontiac

The One Stop Solutions radiator part number 921 is engineered to provide dependable cooling performance for select Buick, Oldsmobile, and Pontiac models. Designed as a direct replacement, this radiator supports vehicles such as the Buick LeSabre, Oldsmobile Delta 88, and Pontiac Bonneville, ensuring proper fit and function.

• Hassle free installation with drop-in fit
• OE performance and quality standards
• Engineering enhancements for improved cooling and durability
• Premium grade core and tank materials
• Includes plated transmission oil cooler
• Tested multiple times during production for reliability
• Components fitted and torqued to factory specifications

Technical Specifications and Features

This radiator features a crossflow design with a core height of 28 1/4 inches, core width of 17 1/4 inches, and a core thickness of 1 inch. The core is constructed from PA material, while the tanks are made of durable plastic. Both inlet and outlet headers measure 18 3/4 inches in length and 2 7/16 inches in width, supporting inlet and outlet diameters of 1 5/16 inches and 1 9/16 inches respectively. The radiator includes a plated transmission oil cooler with fittings spaced 11 1/2 inches apart, enhancing transmission cooling capabilities. This model does not include an engine oil cooler and is designed with a single core row for efficient heat dissipation.

Compatible Vehicles and Applications

This radiator is compatible with the following makes and models:

• Buick: LeSabre, Riviera, Reatta
• Oldsmobile: Delta 88, 88, 98
• Pontiac: Bonneville, Toronado

It is intended for use in vehicles requiring a crossflow radiator with integrated transmission oil cooling, suitable for maintaining optimal engine and transmission temperatures under normal driving conditions.

Common Issues Addressed by This Radiator

• Overheating due to radiator core damage or clogging
• Transmission fluid overheating from faulty or missing transmission oil cooler
• Leaks in plastic tanks or headers causing coolant loss
• Reduced cooling efficiency from worn or corroded components
• Failure of original radiator leading to engine performance issues

Installation Notes and Tips

Installation of the One Stop Solutions radiator 921 is straightforward due to its drop-in design. Ensure all fittings and hardware are included and properly torqued to factory specifications. Verify compatibility with your specific Buick, Oldsmobile, or Pontiac model before installation. It is recommended to flush the cooling system and inspect hoses and clamps during replacement to maintain system integrity.

Quality Assurance and Warranty

Each radiator undergoes up to three rounds of testing during production to ensure consistent quality and performance. Components such as tubes, fins, headers, and tanks are manufactured from premium materials to meet OE standards. While no cap is included, the radiator is engineered to meet or exceed factory specifications. Please consult the manufacturer or distributor for warranty details applicable to this part number 921.