One Stop Solutions 46 Radiator

Radiator for 1989-1990 Nissan 240SX

This OSC Premium New Automotive Radiator is built for direct replacement service on the 1989-1990 Nissan 240SX. It is engineered to match original equipment form and function while using premium-grade aluminum construction and a plastic tank design for dependable cooling performance.

Part number 46 is a downflow radiator with a 1-row equivalent core layout and an integrated concentric transmission oil cooler. It is designed for a hassle-free installation and factory-style fit in the Nissan 240SX cooling system.

Key Features

• Fits 1989-1990 Nissan 240SX, N/A
• Part number 46
• Downflow radiator design
• Core dimensions: 14 1/8 in. height, 25 1/2 in. width, 5/8 in. thickness
• 1-row equivalent core construction
• Premium aluminum core with plastic tanks
• Integrated concentric transmission oil cooler
• Inlet and outlet diameters: 1 3/8 in.
• Individually pressure tested during production

Detailed Description

OSC part number 46 is a replacement radiator for the 1989-1990 Nissan 240SX that follows original equipment cooling layout and fitment. The radiator uses premium aluminum tubes and fins with plastic tanks, and the internal tubes are cadmium plated to help resist premature failure. The unit is engineered with a die-cut gasket for sealing consistency and is assembled to factory specifications for fit and function.

This radiator includes a concentric transmission oil cooler and is built as a direct drop-in replacement for the listed Nissan 240SX applications. It is also cross-referenced to APDI 8010046 for the same application.

Common Cooling Issues It Can Address

• Coolant leaks from an aging radiator core or tank seam
• Reduced cooling efficiency from a restricted or worn core
• Transmission fluid temperature concerns tied to a failing cooler circuit
• Overheating caused by deteriorated radiator internals
• Fitment problems when replacing a damaged original radiator

Installation Notes and Tips

Verify core dimensions, inlet and outlet sizes, and transmission cooler routing before installation. This radiator is designed for direct replacement in the listed Nissan 240SX applications, and the factory-style layout helps simplify installation. Inspect hoses, clamps, and surrounding cooling components at the same time to reduce repeat service.

Quality Assurance

OSC tests the transmission and engine oil coolers before tank installation, checks the radiator core before assembly, and tests the completed unit again after assembly. The design also incorporates engineering updates aimed at improving durability and cooling performance in higher-mileage vehicles.