OE Quality
60-Day Returns

Koyorad A2173 Radiator
Reliable Cooling Solution for Ford and Mazda Vehicles
The Koyorad A2173 radiator is engineered to provide efficient cooling performance for select Ford and Mazda models. Designed with durable materials and integrated transmission oil cooling, this radiator supports optimal engine temperature management under various driving conditions.
- Core dimensions: 20.75 inches height, 25.1875 inches width, 1 inch thickness
- Constructed with an aluminum core for effective heat dissipation
- Single-row core design for streamlined cooling
- Plastic tank material for corrosion resistance and weight reduction
- Includes internal transmission oil cooler with 1.625-inch diameter
- Inlet and outlet diameters both measure 1.5 inches
- Compatible with Ford B3000, B4000, Explorer, F-100 Ranger, and Ranger models
About the Koyorad Radiator Product Line
The Koyorad Radiator line focuses on delivering reliable cooling components that meet OEM specifications. This product line emphasizes quality core materials and integrated features such as transmission oil coolers to maintain engine and transmission performance. The A2173 radiator exemplifies these standards with its aluminum core and built-in transmission oil cooler, making it suitable for medium-duty trucks and SUVs.
Product Details and Specifications
The Koyorad A2173 radiator features a 20.75-inch core height and 25.1875-inch core width, with a thickness of 1 inch, providing a balance between cooling capacity and compact design. Its aluminum core enhances heat transfer efficiency, while the plastic tanks reduce overall weight and resist corrosion. The radiator includes a single core row, optimizing airflow and cooling performance. Both the inlet and outlet ports measure 1.5 inches in diameter, ensuring proper coolant flow. Additionally, the integrated internal transmission oil cooler with a 1.625-inch diameter supports transmission temperature regulation, which is critical for vehicles like the Ford Ranger and Mazda B4000 that may experience heavy-duty use.
Applications and Common Issues Addressed
- Replaces faulty or leaking radiators in Ford B3000, B4000, Explorer, F-100 Ranger, and Ranger models
- Solves overheating problems caused by inefficient heat dissipation
- Addresses transmission overheating with built-in oil cooler functionality
- Prevents coolant leaks from damaged or corroded plastic tanks
- Restores proper coolant flow with correctly sized inlet and outlet diameters
Installation Notes and Tips
Ensure compatibility with your specific vehicle model before installation. Properly drain the cooling system and transmission fluid if applicable. Inspect hoses and clamps for wear and replace as needed to maintain a secure fit. Follow manufacturer torque specifications when securing the radiator to avoid damage. Bleed the cooling system thoroughly after installation to prevent air pockets and ensure optimal performance.
Quality Assurance and Warranty
The Koyorad A2173 radiator is manufactured to meet or exceed OEM standards for durability and performance. Constructed with high-quality aluminum and plastic materials, it offers resistance to corrosion and thermal stress. While specific warranty details are not provided, Koyorad products typically adhere to industry quality controls to ensure reliable operation in compatible Ford and Mazda vehicles.
| Brand | Koyorad |
| Part Number | A2173 |
| Position | Koyorad Radiator |
| Core Height | 20.75 |
| Core Material | Aluminum |
| Core Row Quantity | 1 |
| Core Thickness | 1 |
| Core Width | 25.1875 |
| Inlet Diameter | 1.5 |
| Internal Transmission Oil Cooler | Yes |
| Outlet Diameter | 1.5 |
| Tank Material | Plastic |
| Title | Koyorad a2173 radiator |
| Transmission Oil Cooler Diameter | 1.625 |
| Transmission Oil Cooler Included | Yes |
This part fits 56 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2011 | Ford | Ranger | 4.0L | V6 | N/A | |
| 2010 | Ford | Ranger | 4.0L | V6 | N/A | |
| 2009 | Ford | Ranger | 4.0L | V6 | N/A | |
| 2009 | Mazda | B4000 | N/A | |||
| 2008 | Ford | Ranger | 3.0L | V6 | N/A | |
| 2008 | Ford | Ranger | 4.0L | V6 | N/A | |
| 2008 | Mazda | B4000 | N/A | |||
| 2007 | Ford | Ranger | 3.0L | V6 | N/A | |
| 2007 | Ford | Ranger | 4.0L | V6 | N/A | |
| 2007 | Mazda | B3000 | 3.0L | V6 | N/A | |
| 2007 | Mazda | B4000 | N/A | |||
| 2006 | Ford | Ranger | 3.0L | V6 | N/A | |
| 2006 | Ford | Ranger | 4.0L | V6 | N/A | |
| 2006 | Mazda | B3000 | 3.0L | V6 | N/A | |
| 2006 | Mazda | B4000 | N/A | |||
| 2005 | Ford | Ranger | 3.0L | V6 | N/A | |
| 2005 | Ford | Ranger | 4.0L | V6 | N/A | |
| 2005 | Mazda | B3000 | 3.0L | V6 | N/A | |
| 2005 | Mazda | B4000 | N/A | |||
| 2004 | Ford | Ranger | 3.0L | V6 | N/A | |
| 2004 | Ford | Ranger | 4.0L | V6 | N/A | |
| 2004 | Mazda | B3000 | 3.0L | V6 | N/A | |
| 2004 | Mazda | B4000 | N/A | |||
| 2003 | Ford | Ranger | 3.0L | V6 | N/A | |
| 2003 | Ford | Ranger | 4.0L | V6 | N/A | |
| 2003 | Mazda | B3000 | 3.0L | V6 | N/A | |
| 2003 | Mazda | B4000 | N/A | |||
| 2002 | Ford | Ranger | 3.0L | V6 | N/A | |
| 2002 | Ford | Ranger | 4.0L | V6 | N/A | |
| 2002 | Mazda | B3000 | 3.0L | V6 | N/A | |
| 2002 | Mazda | B4000 | N/A | |||
| 2001 | Ford | F-100 Ranger | 3.0L | V6 | N/A | Koyorad Radiator |
| 2001 | Ford | Ranger | 3.0L | V6 | N/A | |
| 2001 | Ford | Ranger | 4.0L | V6 | N/A | |
| 2001 | Mazda | B3000 | 3.0L | V6 | N/A | |
| 2001 | Mazda | B4000 | N/A | |||
| 2000 | Ford | Explorer | 4.0L | V6 | N/A | |
| 2000 | Ford | Explorer | N/A | |||
| 2000 | Ford | F-100 Ranger | 3.0L | V6 | N/A | Koyorad Radiator |
| 2000 | Ford | Ranger | 3.0L | V6 | N/A | |
| 2000 | Ford | Ranger | 4.0L | V6 | N/A | |
| 2000 | Mazda | B3000 | 3.0L | V6 | N/A | |
| 2000 | Mazda | B4000 | N/A | |||
| 1999 | Ford | Explorer | 4.0L | V6 | N/A | |
| 1999 | Ford | Explorer | N/A | |||
| 1999 | Ford | F-100 Ranger | 3.0L | V6 | N/A | Koyorad Radiator |
| 1999 | Ford | Ranger | 3.0L | V6 | N/A | |
| 1999 | Ford | Ranger | 4.0L | V6 | N/A | |
| 1999 | Mazda | B3000 | 3.0L | V6 | N/A | |
| 1999 | Mazda | B4000 | N/A | |||
| 1998 | Ford | Explorer | 4.0L | V6 | N/A | |
| 1998 | Ford | F-100 Ranger | 3.0L | V6 | N/A | Koyorad Radiator |
| 1998 | Ford | Ranger | 3.0L | V6 | N/A | |
| 1998 | Ford | Ranger | 4.0L | V6 | N/A | |
| 1998 | Mazda | B3000 | 3.0L | V6 | N/A | |
| 1998 | Mazda | B4000 | N/A |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.