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Koyorad A13871 Radiator
Koyorad A13871 Radiator for Ram HD
The Koyorad A13871 radiator is an OE-equivalent replacement built for Ram heavy-duty cooling systems. It is listed for 2019-2024 Ram 2500 and 2019-2024 Ram 3500 applications, including OE 27mm core and non-High Output configurations where specified.
Key Features
- OE-equivalent radiator replacement from Koyorad
- Core height: 848 mm
- Core width: 543.2 mm
- Core thickness: 36 mm
- Lower/right tank length: 541 mm
- Lower/right tank pipe: 50.5 mm
- Lower/right tank width: 32 mm
- Upper/left tank length: 21.3125 in
- Upper/left tank pipe: 1.9375 in
- Upper/left tank width: 1.25 in
Product Details
Koyorad Radiator A13871 is engineered as a direct-fit cooling system replacement for Ram 2500 and Ram 3500 trucks in the model years shown. Koyorad focuses on OE-level replacement radiators and applies manufacturing experience to deliver a radiator that matches the original application requirements for fitment and cooling performance. This part cross-references BBB Industries 13871 for the same application.
What This Radiator Helps Address
- Leaking radiator tanks or core seams
- Restricted coolant flow from an aging radiator
- Overheating caused by reduced heat transfer
- Physical damage to the radiator core or tanks
- Cooling system service needs on Ram HD trucks
Installation Notes
Verify radiator dimensions and OE core specification before installation. This radiator is listed for 2020-2024 Ram 2500, OE 27mm core; 2024 Ram 3500, W/O High Output; 2023 Ram 3500, OE 27mm core; 2022 Ram 3500, W/O High Output; 2021 Ram 3500, OE 27mm core; 2020 Ram 3500, W/O High Output; 2019 Ram 3500, OE 27mm core; and 2019 Ram 2500, W/O High Output. Confirm the vehicle’s cooling package and engine configuration against the notes before ordering. Professional installation is recommended for proper coolant system service and leak checking.
Quality Assurance
Koyorad manufactures OE-equivalent radiators using application-specific engineering and production know-how for replacement fitment on Ram 2500 and Ram 3500 trucks. The A13871 is built to meet the dimensional and application requirements listed for this part number.
| Brand | Koyorad |
| Part Number | A13871 |
| Position | Koyorad Radiator |
| Core Height | 848 |
| Core Thickness | 36 |
| Core Width | 543.2 |
| Tank Lower/Right Length | 541 |
| Tank Lower/Right Pipe | 50.5 |
| Tank Lower/Right Width | 32 |
| Tank Upper/Left Length | 21.3125 |
| Tank Upper/Left Pipe | 1.9375 |
| Tank Upper/Left Width | 1.25 |
| Title | Koyorad a13871 radiator |
This part fits 12 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2024 | Ram | 2500 | 6.4L | V8 | N/A | OE 27mm core; Koyorad Radiator |
| 2024 | Ram | 3500 | 6.7L | L6 | N/A | W/O High Output; Koyorad Radiator |
| 2023 | Ram | 2500 | 6.4L | V8 | N/A | OE 27mm core; Koyorad Radiator |
| 2023 | Ram | 3500 | 6.4L | V8 | N/A | OE 27mm core; Koyorad Radiator |
| 2022 | Ram | 2500 | 6.4L | V8 | N/A | OE 27mm core; Koyorad Radiator |
| 2022 | Ram | 3500 | 6.7L | L6 | N/A | W/O High Output; Koyorad Radiator |
| 2021 | Ram | 2500 | 6.4L | V8 | N/A | OE 27mm core; Koyorad Radiator |
| 2021 | Ram | 3500 | 6.4L | V8 | N/A | OE 27mm core; Koyorad Radiator |
| 2020 | Ram | 2500 | 6.4L | V8 | N/A | OE 27mm core; Koyorad Radiator |
| 2020 | Ram | 3500 | 6.7L | L6 | N/A | W/O High Output; Koyorad Radiator |
| 2019 | Ram | 2500 | 6.7L | L6 | N/A | W/O High Output; Koyorad Radiator |
| 2019 | Ram | 3500 | 6.4L | V8 | N/A | OE 27mm core; Koyorad 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.