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CSF 3948 RadiatorOE Quality 60-Day Returns
Part #: 3948

CSF 3948 Radiator

⚙️ 25 vehicles fit this part
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✅OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Cadillac, Chevrolet, and GMC, Escalade, Escalade ESV, Tahoe, Yukon, and Yukon XL
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Radiator for Escalade, Tahoe, Yukon

CSF 3948 is an OE-style radiator built with an aluminum core and plastic tanks for the 2021-2025 Cadillac Escalade, Cadillac Escalade ESV, Chevrolet Tahoe, GMC Yukon, and GMC Yukon XL. It uses a cross-flow design with quick-connect oil cooler fittings and is engineered for direct replacement service on upgraded-model applications.

Key Features

  • Aluminum core with plastic tank construction
  • Cross-flow radiator design
  • Single-row core, 7/8 in. thickness
  • Core dimensions: 34 15/16 in. length x 19 3/16 in. width
  • Inlet: 1 5/16 in. left; outlet: 1 9/16 in. right
  • 11 1/2 in. right-side high-efficiency plate-type oil cooler
  • O.E.M.-style quick-connect oil cooler fittings
  • Radiator cap not supplied

Detailed Description

CSF part number 3948 is designed for modern full-size GM SUVs that require a radiator with integrated oil cooler provisions. The aluminum core helps transfer heat efficiently, while the plastic tank design follows the original equipment layout for service replacement. This radiator is listed for 2021-2025 Cadillac Escalade and Escalade ESV, 2021-2025 Chevrolet Tahoe, and 2021-2025 GMC Yukon and Yukon XL upgraded-model applications. This part cross-references Dorman - HELP 13908 and 13920 for the same application.

Common Issues Addressed

  • Cracked or leaking radiator tanks
  • Restricted coolant flow from an aging core
  • Transmission or engine oil cooler connection wear
  • Overheating caused by reduced heat exchange efficiency
  • Coolant loss from damaged inlet or outlet connections

Installation Notes and Tips

Verify the vehicle’s upgraded-model configuration before ordering, since fitment is specific to the listed applications. Confirm inlet and outlet orientation, along with the quick-connect oil cooler fittings, before installation. Transfer any required components from the original radiator if they are not supplied with this unit. CSF 3948 is a direct-fit replacement radiator for the listed Cadillac, Chevrolet, and GMC models.

Quality Assurance

CSF manufactures radiators in ISO/TSO-certified facilities and validates cooling performance through laboratory wind-tunnel testing. The brand has supplied radiators worldwide for more than 50 years and produces a broad catalog of OE-style cooling components for many vehicle platforms.

BrandCSF
Part Number3948
Core Thickness7/8
Core Width19 3/16
Core MaterialAluminum
Tank MaterialPlastic
Core Length34 15/16
Inlet Diameter1 5/16 left
Outlet Diameter1 9/16 right
Down Flow Or Cross Flow TypeCross flow
Box Height (in)6 1/4
Box Length (in)44 7/16
Box Weight (lbs)17
Box Width (in)25 1/8
Hazardous MaterialNo
Inlet Length (in)19 15/16
Inlet Width (in)1 9/16
No. Of Rows1
Oil Cooler (in)11 1/2 right (high-efficiency plate type)
Outlet Length (in)19 15/16
Outlet Width (in)2 7/16
Radiator Cap SuppliedNo
Tech NoteO.e.m. style plastic tank & aluminum core with quick-connect oil

This part fits 25 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2025CadillacEscalade6.2LV8N/AUpgraded Model
2025CadillacEscalade ESV6.2LV8N/AUpgraded Model
2025ChevroletTahoe5.3LV8N/AUpgraded Model
2025GMCYukon5.3LV8N/AUpgraded Model
2025GMCYukon XL5.3LV8N/AUpgraded Model
2024CadillacEscalade6.2LV8N/AUpgraded Model
2024CadillacEscalade ESV6.2LV8N/AUpgraded Model
2024ChevroletTahoe6.2LV8N/AUpgraded Model
2024GMCYukon5.3LV8N/AUpgraded Model
2024GMCYukon XL6.2LV8N/AUpgraded Model
2023CadillacEscalade6.2LV8N/AUpgraded Model
2023CadillacEscalade ESV6.2LV8N/AUpgraded Model
2023ChevroletTahoe5.3LV8N/AUpgraded Model
2023GMCYukon6.2LV8N/AUpgraded Model
2023GMCYukon XL5.3LV8N/AUpgraded Model
2022CadillacEscalade6.2LV8N/AUpgraded Model
2022CadillacEscalade ESV6.2LV8N/AUpgraded Model
2022ChevroletTahoe5.3LV8N/AUpgraded Model
2022GMCYukon5.3LV8N/AUpgraded Model
2022GMCYukon XL5.3LV8N/AUpgraded Model
2021CadillacEscalade6.2LV8N/AUpgraded Model
2021CadillacEscalade ESV6.2LV8N/AUpgraded Model
2021ChevroletTahoe6.2LV8N/AUpgraded Model
2021GMCYukon6.2LV8N/AUpgraded Model
2021GMCYukon XL5.3LV8N/AUpgraded Model

* 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:

139081392013921842437488557581785575818GM3010633GM3010636

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.

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