TYC 18138 Intercooler

Overview

TYC intercooler part number 18138 is a direct-fit cooling component for turbocharged charge-air systems. It is built with an aluminum core and crossflow construction to support efficient air-to-air cooling in the intake tract.

Compatible With Buick Envision and Cadillac XT4 applications, this intercooler uses spring lock inlet and outlet connections for a secure factory-style fit. The core dimensions and connection layout are specified to match the original installation requirements for these vehicles.

Key Features

• Aluminum core construction for lightweight thermal transfer performance
• Crossflow design for organized airflow through the core
• Spring lock inlet and outlet connections
• Core dimensions: 3.15 in height, 27.32 in length, and 5.76 in thickness
• TYC part number 18138 for application matching

Detailed Description

This TYC intercooler is engineered for 2019-2025 Cadillac XT4 and 2021-2025 Buick Envision fitments. The aluminum core and crossflow layout support charge-air cooling by helping reduce intake air temperature after compression, which is important for maintaining consistent turbo system operation. The spring lock connection style and 61 mm inlet and outlet diameters align with factory-style plumbing on the listed applications. If you are replacing a worn or damaged intercooler on a Buick Envision or Cadillac XT4, part number 18138 provides a vehicle-specific replacement path without requiring guesswork on core layout or connection type.

What It Is Used For

• Replacing a leaking or damaged charge-air cooler
• Restoring proper cooling in the turbo intake system
• Addressing reduced boost efficiency caused by intercooler damage
• Correcting fitment issues from a bent or corroded core
• Returning factory-style connection alignment to the intake plumbing

Installation Notes and Tips

Verify the inlet and outlet connection style, core dimensions, and vehicle application before installation. This intercooler is listed for Buick Envision and Cadillac XT4 applications, and part number 18138 should be matched to the original equipment layout before removal of the existing unit. Inspect adjoining charge-air hoses and seals during replacement to confirm the system is ready for reassembly.

Quality Assurance

TYC manufactures replacement cooling components with application-specific fitment and OE-style connection details. Part number 18138 cross-references GM 85154389 and GM3012128 for the same application.