CSF OEM Style Radiator Part Number: 3975 For 2020-2026 Chevy Silverado / GMC Sierra 2500HD & 3500HD 6.6L Gas OPEN BOX / DAMAGED Condition Description: Chipped and damaged. Please review all attached pictures carefully before purchasing.
Replace your damaged or leaking factory radiator with the CSF 3975 OEM Style Radiator. Designed as a direct-fit replacement for select Chevrolet Silverado HD and GMC Sierra HD gas truck applications, this radiator is built to restore dependable cooling performance while maintaining OEM-style fitment.
CSF radiators are built to high performance standards and engineered for reliable street and work-truck use. With OEM-style plastic tank / aluminum core construction, high-performance multi-louvered fins, and drop-in fitment, the CSF 3975 is a solid replacement choice for your heavy-duty GM truck.
Features & Benefits
- OEM specified plastic tank / aluminum core construction
- Drop-in fit replacement design
- High performance multi-louvered fin design
- 100% leak tested before leaving the factory
- Special-grade EPDM rubber gaskets designed to withstand extreme temperatures
- Quick-connect outlet pipe and quick-connect oil cooler fittings
- High-performance transmission cooler with built-in turburlator, when applicable
- All components installed, torqued, and tested during assembly
Product Specifications Brand CSF Part Number 3975 Product Type Radiator Core Material Aluminum Tank Material Plastic Rows 1 Flow Type Cross Flow Core Length 37 9/16 in. Core Width 23 3/8 in. Core Thickness 1 1/4 in. Top Hose Fitting 1 5/16 in. Left Bottom Hose Fitting 1 1/2 in. Right Oil Cooler 11 1/2 in. Left & Right (High-Efficiency Plate Type) Radiator Cap Supplied No Tech Note O.E.M. style plastic tank & aluminum core with quick-connect outlet pipe & quick-connect oil cooler fittings. Complete Vehicle Fitment
Fits the following applications:
Years Make Model Engine 2020-2026 Chevrolet Silverado 2500 HD 6.6L V8 6571cc 401ci Naturally Aspirated 2020-2026 Chevrolet Silverado 3500 HD 6.6L V8 6571cc 401ci Naturally Aspirated 2020-2026 GMC Sierra 2500 HD 6.6L V8 6571cc 401ci Naturally Aspirated 2020-2026 GMC Sierra 3500 HD 6.6L V8 6571cc 401ci Naturally Aspirated Interchange / Reference Numbers
- DPI: 13885
- OEM: 84565799
- OEM: 84889155
- Partslink: GM3010625
Fitment Note: Please verify compatibility with your exact year, make, model, engine, and OE radiator configuration before purchase. Open Box / Scratch & Dent Disclaimer
All items listed as Open Box, Scratch and Dent, or As-Is are sold at a significant discount due to their condition. These items may include cosmetic imperfections such as scratches, chips, dents, or signs of prior handling. Some items may be missing original packaging, accessories, or hardware.
Please review all provided photos and the item description carefully before purchasing, as we strive to show the condition of each product accurately. It is the buyer’s responsibility to verify fitment and compatibility with their vehicle prior to purchase.
All sales are final, and no returns or exchanges will be accepted unless explicitly stated otherwise in the listing. For any additional questions, please feel free to contact us before making your purchase.
Thank you for your understanding and for shopping with us!
CSF 3975 OEM Style Radiator
2020-2026 Silverado / Sierra 2500HD & 3500HD 6.6L Gas
Open Box - Chipped and Damaged - Review Pictures Before Purchasing
