Nissens 90842 Automatic Transmission Oil Cooler

Nissens 90842 Automatic Transmission Oil Cooler

The Nissens 90842 automatic transmission oil cooler is built with an aluminum core and integrated seal to support transmission fluid temperature control in Mazda applications. It is a direct-fit cooling component for vehicles that rely on stable ATF temperatures for consistent shifting and drivetrain protection.

Key Features

• Aluminum construction for efficient heat transfer and corrosion resistance
• Core dimensions: 5.43 in. length, 3.94 in. width, 3.39 in. height
• 9-row core design for transmission fluid cooling performance
• 0.67 in. inlet and outlet diameters
• Gasket or seal included for the specified application
• Fits Mazda CX-5, CX-30, CX-3, Mazda 3, and Mazda 6 applications listed below

Product Details

Nissens 90842 is an automatic transmission oil cooler designed for Mazda vehicles that need controlled transmission fluid temperatures under everyday driving and load conditions. Nissens develops thermal management components with a focus on quality manufacturing and ongoing aftermarket coverage, and this cooler follows that approach with a compact aluminum core and application-specific sealing. It is listed for 2024-2025 Mazda CX-5, 2020-2023 Mazda CX-30, 2015-2023 Mazda CX-5, 2017-2022 Mazda 3, 2015 Mazda 3, 2015-2021 Mazda 6, 2016-2021 Mazda CX-3, and 2016 Mazda 3 without housing. This part cross-references Monroe Shocks & Struts (e.g., FZ01199F0, FZ0219946) for the same application.

What It Helps Address

• High transmission fluid temperatures
• Heat-related shifting inconsistency
• Transmission fluid breakdown from excess thermal load
• Cooling system wear in stop-and-go driving
• Replacement of a leaking or damaged transmission oil cooler

Installation Notes and Tips

Verify the vehicle’s exact year, model, and configuration before installation. This listing includes a 2016 Mazda 3 application noted as without housing, and 2024-2025 Mazda CX-5 coverage excludes Start/Stop feature vehicles. Confirm inlet and outlet sizing, seal condition, and cooler mounting points before reassembly. For best results, inspect transmission lines and fluid condition during replacement.

Quality Assurance

Nissens manufactures thermal and engine efficiency components for the aftermarket with a focus on consistent quality standards. Part number 90842 is built to match the listed Mazda applications and support dependable transmission cooling performance.