CSF 3627 Drive Motor Inverter Cooler

CSF 3627 Drive Motor Inverter Cooler Overview

CSF 3627 is a 1-row all-aluminum drive motor inverter cooler built in an OE-style layout for select Buick, Chevrolet applications. It uses a parallel-flow, cross-flow design with aluminum core and tanks to support efficient heat transfer in a compact auxiliary cooling package.

For shoppers searching for a Buick LaCrosse inverter cooler, Buick Regal auxiliary radiator, or Chevrolet Malibu inverter cooler replacement, this CSF unit is built around the original equipment style dimensions and hose connections for straightforward fitment.

Key Features

• 1-row all-aluminum construction for lightweight durability
• Parallel-flow core design with cross-flow layout
• Aluminum core and aluminum tank material
• OE-style all-aluminum tanks and core model
• 5/8 in. right inlet and 5/8 in. left outlet
• Core dimensions: 24 in. length, 4 9/16 in. width, 5/8 in. thickness
• Cap not included

Product Details

CSF Part Number 3627 is engineered as an auxiliary radiator / drive motor inverter cooler for vehicles that require a compact, OE-style thermal management component. The all-aluminum construction supports efficient cooling performance, while the parallel-flow core and cross-flow configuration help maintain consistent fluid routing through the cooler. CSF manufactures radiators and cooling components to controlled production standards and validates designs through laboratory testing for cooling performance.

This part cross-references Bosch 13329 and Spectra Premium CU13329 for the same application. It is a direct-fit style solution for 2010 Buick Allure, 2010-2011 Buick LaCrosse, 2012-2016 Buick LaCrosse, 2012-2016 Buick Regal, 2013-2014 Chevrolet Malibu, and 2014 Chevrolet Impala.

What It Helps Address

• Overheating in the inverter cooling circuit
• Reduced cooling efficiency from a damaged auxiliary radiator
• Leaks caused by cracked or corroded cooling components
• Poor thermal control in OE-style hybrid or drive motor cooling systems
• Fitment issues from a mismatched replacement cooler

Installation Notes

Verify inlet and outlet orientation before installation: 5/8 in. right inlet and 5/8 in. left outlet. Confirm the OE-style mounting points, core dimensions, and hose routing against the removed unit before final assembly. Because this is an all-aluminum cooler, handle the fittings and tubes carefully during installation to avoid damage to the core.

Quality Assurance

CSF builds cooling products in ISO/TSO-certified factories and uses engineered, lab-tested designs for cooling performance validation. The brand has supplied radiators worldwide for decades and manufactures a broad range of applications for major vehicle platforms.