OE Quality
60-Day Returns

TYC 1140 Radiator
Overview of the TYC Radiator for Mazda Miata
The TYC Radiator part number 1140 is engineered specifically for Mazda Miata models, providing reliable cooling performance. Designed with an aluminum core and integrated transmission oil cooler, this radiator supports efficient engine temperature management and transmission fluid cooling.
- Core material constructed from durable aluminum
- Includes concentric transmission oil cooler for enhanced cooling
- Downflow flow configuration for optimal coolant circulation
- Core dimensions: 25.51 inches height, 12.6 inches length, 1.02 inches thickness
- Hose clamp inlet and outlet connections with 1.26-inch diameter
- Single-row tube design with 64 fins every 4 inches for heat dissipation
- Compatible with Mazda Miata vehicles
- Part number 1140 ensures precise fitment and performance
TYC Radiator Product Line Details
The TYC Radiator product line focuses on delivering quality cooling components that meet or exceed OEM specifications. This line emphasizes durable aluminum cores and integrated transmission oil coolers where applicable, such as in part number 1140. The design supports efficient heat exchange and reliable operation under various driving conditions, making it suitable for the Mazda Miata's cooling system requirements.
Technical Specifications and Features
This radiator features a 1.96x26.43 inch top and bottom header, supporting a sturdy frame for the cooling core. The core itself measures 25.51 inches in height, 12.6 inches in length, and 1.02 inches in thickness, with a fin count of 64 every 4 inches and a total of 65 fin rows. The fin wave height is 0.31 inches with a pitch of 3.2, optimizing airflow and heat dissipation. The downflow configuration ensures coolant flows from top to bottom, enhancing thermal efficiency. The radiator includes a concentric transmission oil cooler with tube fittings sized at 0.39 inches for both inlet and outlet, facilitating effective transmission fluid cooling. Hose clamp connections with 1.26-inch diameter inlet and outlet ports provide secure and straightforward installation.
Common Applications and Problem Solving
- Replaces faulty or leaking radiators in Mazda Miata vehicles
- Addresses overheating issues caused by inefficient cooling
- Resolves transmission fluid overheating with integrated oil cooler
- Improves coolant flow and heat dissipation in aging cooling systems
- Eliminates coolant leaks from damaged or corroded radiator cores
Installation Notes and Tips
When installing the TYC Radiator 1140 on a Mazda Miata, ensure all hose clamps are securely fastened to prevent leaks. Verify that the concentric transmission oil cooler connections are properly fitted using the tube fittings provided. It is recommended to flush the cooling system before installation to remove debris and contaminants. Check for proper alignment of the radiator headers and confirm that the downflow configuration matches the vehicle’s cooling system design.
Quality Assurance and Warranty
TYC Radiator products, including part number 1140, are manufactured to meet strict quality standards with durable aluminum cores and reliable construction. This radiator is designed to provide consistent cooling performance and long service life. Warranty coverage details should be confirmed with the supplier or manufacturer to ensure protection against defects.
| Brand | TYC |
| Part Number | 1140 |
| Position | TYC Radiator, N/A |
| Bottom Header | 1.96x26.43 |
| Core Height (in) | 25.51 |
| Core Length (in) | 12.6 |
| Core Material | Aluminum |
| Core Thickness (in) | 1.02 |
| Engine Oil Cooler Included | No |
| Fin Count (every 4") | 64 |
| Fin Wave Height (in) | 0.31 |
| Find Wave Pitch | 3.2 |
| Flow Configuration | Downflow |
| Inlet Connection Type | Hose Clamp |
| Inlet Diameter (in) | 1.26 |
| No. Of Rows | 1 |
| Outlet Connection Type | Hose Clamp |
| Outlet Diameter (in) | 1.26 |
| Toc Distance (in) | 10.83 |
| Toc Inlet Diameter (in) | 0.39 |
| Toc Inlet Type | Tube fitting |
| Toc Outlet Diameter (in) | 0.39 |
| Toc Outlet Type | Tube fitting |
| Top Header | 1.96x26.43 |
| Total Fin Row Count | 65 |
| Total Tube Count | 64 |
| Transmission Oil Cooler Included | Yes |
| Transmission Oil Cooler Type | Concentric Oil Cooler |
| Tube Count (every 4") | 10 |
| Tube Width X Height | 26x2 |
This part fits 8 vehicles. Search below:
| Year | Make | Model | Submodel | Body Type | Transmission | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|---|---|
| 1997 | Mazda | Miata | Manual | 1.8L | L4 | N/A | TYC Radiator | ||
| 1996 | Mazda | Miata | Manual | 1.8L | L4 | N/A | TYC Radiator | ||
| 1995 | Mazda | Miata | Manual | 1.8L | L4 | N/A | TYC Radiator | ||
| 1994 | Mazda | Miata | Manual | 1.8L | L4 | N/A | TYC Radiator | ||
| 1993 | Mazda | Miata | Base | Convertible | Automatic | 1.6L | L4 | Primary | TYC Radiator |
| 1992 | Mazda | Miata | Base | Convertible | Automatic | 1.6L | L4 | Primary | TYC Radiator |
| 1991 | Mazda | Miata | SE | Convertible | Automatic | 1.6L | L4 | Primary | TYC Radiator |
| 1990 | Mazda | Miata | Base | Convertible | Automatic | 1.6L | L4 | Primary | TYC Radiator |
* 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.