Readair Engine Coolant Radiator with Transmission Oil Cooler — OEM Fit for Infiniti G37/G35/G25/Q40/Q60/370Z

Overview

Meet the Readair Engine Coolant Radiator with Transmission Oil Cooler, engineered as a direct OEM fit for a range of Infiniti and Nissan performance models. This unit blends engine cooling with a dedicated transmission oil cooler to help maintain optimal temperatures during daily commutes and spirited drives alike.

Key design elements include a robust aluminum radiator core with TIG-welded end tanks, and a brass transmission oil cooler, all finished with a treated coating to resist the elements. Each unit undergoes leak testing to minimize surprises after installation, giving you a dependable cooling solution built for the road.

Key specifications

• Engine Oil Cooler Included: YES
• Core Height: 29-3/10 inch
• Core Width: 18-4/5 inch
• Core Thickness: 1-3/5 inch
• Inlet Diameter: 1-2/5 inch
• Outlet Diameter: 1-2/5 inch

Premium installation and longevity

The aluminum radiator core is paired with PA66 GF30 inlet/outlet tanks and a brass oil cooler, then coated to endure road salt and heat cycles. The assembly is designed for a tight seal and reliable performance on long trips and hot days.

• Premium installation: aluminum core, TIG-welded end tanks, and treated coating
• Leak-proof construction: tested to minimize leaks in demanding conditions

Warranty and support

Buy with confidence: a two-year unlimited-mileage guarantee covers the radiator assembly, backed by a dedicated support team available around the clock.

Why choose this Readair radiator

This unit is tailored for Infiniti G37 3.7L (2008–2013), G35 3.5L (2005–2008), G25 2.5L (2011–2012), Q40 3.7L (2015), Q60 3.7L (2014–2016), and Nissan 370Z 3.7L (2009–2020). The combination of an aluminum core and brass cooler provides efficient heat transfer, while a leak-tested construction aims to offer reliability through daily driving and occasional push-to-pass moments. It’s designed to fit cleanly with the factory mounting points, reducing guesswork during installation, and pairing nicely with standard cooling-system service schedules.

In real-world use, drivers may notice steadier coolant temperatures on hot days, smoother operation under load, and added peace of mind on long trips. While results can vary with vehicle condition and driving style, this radiator-oil cooler assembly presents a solid upgrade path for enthusiasts seeking enhanced cooling capacity without altering upkeep routines. Our team is ready to help if you have installation questions or need compatibility confirmation before purchase.