OE Quality
60-Day Returns

TYC 18103
Overview of TYC Radiator Core for Chevrolet Equinox and GMC Terrain
The TYC radiator core, part number 18103, is engineered to provide reliable cooling performance for Chevrolet Equinox and GMC Terrain models. Designed with durable aluminum core material and precise dimensions, this radiator core supports efficient heat dissipation and vehicle operation.
- Core Material: Aluminum for enhanced heat transfer and corrosion resistance
- Core Dimensions: 27.36 inches length, 4.66 inches height, and 3.15 inches thickness
- Flow Configuration: Crossflow design for optimized coolant circulation
- Headers: Top and bottom headers measuring 3.65 by 4.96 inches
- Inlet and Outlet: Quick connect type with 2.40-inch diameter for easy hose attachment
Detailed Product Description
The TYC 18103 radiator core features a robust aluminum construction that ensures durability and efficient thermal conductivity. Its crossflow configuration allows coolant to flow horizontally across the core, improving heat exchange and maintaining optimal engine temperature. The core’s dimensions—27.36 inches in length, 4.66 inches in height, and 3.15 inches in thickness—are designed to match the cooling system requirements of Chevrolet Equinox and GMC Terrain vehicles precisely. Both the top and bottom headers measure 3.65 by 4.96 inches, providing structural support and facilitating coolant flow. The quick connect inlet and outlet connections, each with a 2.40-inch diameter, simplify installation and ensure secure hose fittings.
Compatible Vehicles and Applications
- Chevrolet Equinox radiator core replacement
- GMC Terrain cooling system repair
- Addressing overheating issues in Chevrolet Equinox and GMC Terrain
- Replacement for damaged or leaking radiator cores in specified models
- Improving coolant flow efficiency in Chevrolet Equinox and GMC Terrain
Installation Notes and Tips
When installing the TYC radiator core 18103, ensure the vehicle is cooled down before beginning work. Verify that the quick connect inlet and outlet hoses are free of debris and securely attached to prevent leaks. Proper alignment of the core with the top and bottom headers is essential for optimal performance. It is recommended to inspect related cooling system components during installation to maintain overall system integrity.
Quality Assurance and Warranty
TYC manufactures this radiator core to meet or exceed OEM specifications for Chevrolet Equinox and GMC Terrain vehicles. The aluminum core material offers resistance to corrosion and wear, contributing to long service life. While specific warranty details are not provided, TYC products typically undergo rigorous quality control to ensure reliability and fitment accuracy.
| Brand | TYC |
| Part Number | 18103 |
| Core Material | Aluminum |
| Bottom Header | 3.65x4.96 |
| Core Height (in) | 4.66 |
| Core Length (in) | 27.36 |
| Core Thickness (in) | 3.15 |
| Flow Configuration | Crossflow |
| Inlet Connection Type | Quick connect |
| Inlet Diameter (in) | 2.40 |
| Outlet Connection Type | Quick connect |
| Outlet Diameter (in) | 2.40 |
| Top Header | 3.65x4.96 |
This part fits 31 vehicles. Search below:
| Year | Make | Model | Submodel | Body Type | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 2025 | Chevrolet | Equinox | LT | Sport Utility | 1.5L | L4 | N/A | |
| 2025 | GMC | Terrain | Black Edition | Sport Utility | 1.5L | L4 | N/A | |
| 2024 | Chevrolet | Equinox | Premier | Sport Utility | 1.5L | L4 | N/A | |
| 2024 | GMC | Terrain | Black Edition | Sport Utility | 1.5L | L4 | N/A | |
| 2023 | Chevrolet | Equinox | RS | Sport Utility | 1.5L | L4 | N/A | |
| 2023 | GMC | Terrain | Denali | Sport Utility | 1.5L | L4 | N/A | |
| 2022 | Chevrolet | Equinox | Premier | Sport Utility | 1.5L | L4 | N/A | |
| 2022 | GMC | Terrain | AT4 | Sport Utility | 1.5L | L4 | N/A | |
| 2021 | Chevrolet | Equinox | Premier | Sport Utility | 1.5L | L4 | N/A | |
| 2021 | GMC | Terrain | SLT | Sport Utility | 1.5L | L4 | N/A | |
| 2020 | Chevrolet | Equinox | LS | Sport Utility | 1.5L | L4 | N/A | |
| 2020 | Chevrolet | Equinox | LT | Sport Utility | 1.5L | L4 | N/A | |
| 2020 | Chevrolet | Equinox | L | Sport Utility | 1.5L | L4 | N/A | |
| 2020 | Chevrolet | Equinox | Premier | Sport Utility | 1.5L | L4 | N/A | |
| 2020 | GMC | Terrain | SLE | Sport Utility | 1.5L | L4 | N/A | |
| 2020 | GMC | Terrain | SL | Sport Utility | 1.5L | L4 | N/A | |
| 2020 | GMC | Terrain | SLT | Sport Utility | 1.5L | L4 | N/A | |
| 2019 | Chevrolet | Equinox | Premier | Sport Utility | 1.5L | L4 | N/A | |
| 2019 | Chevrolet | Equinox | L | Sport Utility | 1.5L | L4 | N/A | |
| 2019 | Chevrolet | Equinox | LS | Sport Utility | 1.5L | L4 | N/A | |
| 2019 | Chevrolet | Equinox | LT | Sport Utility | 1.5L | L4 | N/A | |
| 2019 | GMC | Terrain | SL | Sport Utility | 1.5L | L4 | N/A | |
| 2019 | GMC | Terrain | SLE | Sport Utility | 1.5L | L4 | N/A | |
| 2019 | GMC | Terrain | SLT | Sport Utility | 1.5L | L4 | N/A | |
| 2018 | Chevrolet | Equinox | LS | Sport Utility | 1.5L | L4 | N/A | |
| 2018 | Chevrolet | Equinox | LT | Sport Utility | 1.5L | L4 | N/A | |
| 2018 | Chevrolet | Equinox | Premier | Sport Utility | 1.5L | L4 | N/A | |
| 2018 | Chevrolet | Equinox | L | Sport Utility | 1.5L | L4 | N/A | |
| 2018 | GMC | Terrain | SL | Sport Utility | 1.5L | L4 | N/A | |
| 2018 | GMC | Terrain | SLE | Sport Utility | 1.5L | L4 | N/A | |
| 2018 | GMC | Terrain | SLT | Sport Utility | 1.5L | L4 | N/A |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.