Toyota Hybrid Radiator for Prius, Corolla & Corolla Cross – CSF #4015
CSF introduces the new hybrid radiator (CSF #4015) for 2023–2025 Corolla, Corolla Cross, Prius, and Prius Prime, covering both Full Hybrid (FHEV) and Plug-In Hybrid (PHEV) models.
Hybrid cooling systems aren’t quite the same as their internal combustion engine (ICE) counterparts. The constant cycling between electric and combustion modes puts repetitive thermal stress on every component in the loop, and traditional weld tube cores feel that over time. CSF #4015 addresses this directly with an upgraded B-Tube design, which uses a B-fold tube (formed in the shape of a “B”) instead of a standard weld tube. This design makes the tube stronger and better able to withstand the cyclical load patterns found in hybrid systems. Paired with an aluminum cross-flow core and OEM-spec plastic tanks, it’s a direct-fit solution built for how hybrids actually run.
What Sets CSF #4015 Apart
B-Tube Construction: The B-fold tube design, where the cooling tube is folded into a shape resembling the letter “B,” replaces conventional weld tube construction to provide better structural integrity under the repetitive thermal cycling required by hybrid cooling. This improvement enhances long-term durability.
Six Hybrid Configurations, One Part Number: Full Hybrid Electric Vehicle (FHEV) and Plug-In Hybrid Electric Vehicle (PHEV) variants across Corolla, Corolla Cross, Prius, and Prius Prime. All covered. Broad fitment means fewer SKUs to manage and more customers served per unit stocked.
Direct OEM Fitment: Matched to factory specs across all qualifying models. The install is straightforward: no fabrication, no adaptation, just a clean swap.
Nitrogen Leak Tested: Every CSF radiator is pressure-tested at 150% of operating pressure. Built and verified before it leaves the factory.
ISO/TSO Certified Manufacturing: Wind tunnel laboratory testing backs every unit CSF ships. Cooling performance is validated, not assumed.
Vehicle Fitment
| Toyota | Corolla | 1.8L L4 (1798cc / 110ci) | Full Hybrid FHEV | 2023–2025 |
| Toyota | Corolla Cross | 2.0L L4 (1987cc / 121ci) | Full Hybrid FHEV | 2023–2025 |
| Toyota | Prius | 1.8L L4 (1798cc / 110ci) | Full Hybrid FHEV | 2023–2025 |
| Toyota | Prius | 2.0L L4 (1987cc / 121ci) | Full Hybrid FHEV | 2023–2025 |
| Toyota | Prius | 2.0L L4 (1987cc / 121ci) | Plug-In Hybrid PHEV | 2025 |
| Toyota | Prius Prime | 2.0L L4 (1987cc / 121ci) | Plug-In Hybrid PHEV | 2023–2024 |
Specifications
|
Part Number |
CSF #4015 |
|---|---|
|
Configuration |
Cross-Flow |
|
Core Material |
Aluminum |
|
Tank Material |
Plastic |
|
Number of Rows |
1 |
|
Core Thickness |
5/8 in. |
|
Core Length |
26 9/16 in. |
|
Core Width |
16 in. |
|
Top Hose Fitting |
1 5/16 in. Right |
|
Bottom Hose Fitting |
1 5/16 in. Left |
|
Inlet / Outlet Width |
1 3/8 in. |
|
Inlet / Outlet Length |
16 9/16 in. |
|
Oil Cooler |
No |
|
Radiator Cap Included |
No |
|
Box Dimensions |
33 3/16 in. L x 20 in. W x 6 7/8 in. H |
|
Box Weight |
8 lbs. |
OEM Cross-Reference: 16400-24390 / 16400-F2180 | Partslink: TO3010381 | DPI: 13945
For Distributors and Shop Buyers
The hybrid market isn’t a niche anymore. Prius, Corolla Hybrid, and Corolla Cross Hybrid are showing up in service bays at a growing rate, and PHEV owners in particular tend to hold their vehicles longer, meaning more cooling system wear down the road. CSF #4015 covers six configurations under one SKU, keeps returns low, and backs every unit with the quality assurance that comes from 50 years and 30 million radiators in the field. It’s a smart shelf investment for any shop serving a Toyota-heavy market.
CSF #4015 is available now. Visit csfradiators.com or contact your CSF distributor today.
