CSF 3969 Radiator

Brand CSF 3969
Core Thickness 1 3/16
Core Width 15 5/8
Core Material Aluminum
Tank Material Plastic
Core Length 20 1/16
Inlet Diameter 1 3/8 left
Outlet Diameter 1 3/8 right
Down Flow Or Cross Flow Type Cross flow
Box Height (in) 6 7/8
Box Length (in) 26 15/16
Box Weight (lbs) 8
Box Width (in) 19 3/16
Hazardous Material No
Inlet Length (in) 16 1/16
Inlet Width (in) 1 9/16
No. Of Rows 1
Oil Cooler (in) No
Outlet Length (in) 16 1/16
Outlet Width (in) 1 9/16
Radiator Cap Supplied No
Tech Note O.e.m. style plastic tank & aluminum core. upgraded heavy duty co
Fits Nissan · 6 vehicles

OE-style design. Plastic tank and aluminum core construction for a direct-fit radiator replacement.

Heavy-duty core. Upgraded 30mm core is 12% thicker than OEM for added cooling capacity.

Cross-flow layout. Engineered for efficient coolant flow and cooling performance validation.

Cross-references BBB Industries 13852, TechPro NI3010257 and 21410-6LB0B for the same application. See all 3.

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CSF 3969 Radiator for Nissan Sentra

The CSF 3969 is an OE-style radiator built with a plastic tank and aluminum core for the 2020-2025 Nissan Sentra. It uses a cross-flow design with upgraded heavy-duty core construction and is engineered for cooling performance validation.

Key Features

  • Fits 2020-2025 Nissan Sentra, N/A
  • OE-style plastic tank and aluminum core construction
  • Cross-flow radiator design
  • Core thickness: 1 3/16 in.
  • Core dimensions: 20 1/16 in. length x 15 5/8 in. width
  • 1-row core layout
  • 1 3/8 in. inlet on the left and 1 3/8 in. outlet on the right
  • Upgraded heavy-duty core, 12% thicker than OEM 27 mm design

Detailed Description

CSF part number 3969 is designed for the Nissan Sentra cooling system and follows an OE-style layout for direct replacement use. The aluminum core and plastic tank construction match common factory radiator architecture while the thicker heavy-duty core adds additional thermal capacity compared with the OEM 27 mm specification. CSF manufactures radiators to high-performance standards and validates cooling performance through laboratory wind tunnel testing. This part cross-references BBB Industries 13852 and TechPro NI3010257 for the same application.

Common Cooling Issues Addressed

  • Cracked or leaking radiator tanks
  • Reduced cooling efficiency from a worn or restricted core
  • Overheating caused by radiator age or internal deterioration
  • Fitment problems from a damaged OE-style replacement unit
  • Cooling system service needs on 2020-2025 Nissan Sentra models

Installation Notes and Tips

Verify inlet and outlet orientation before installation: inlet is 1 3/8 in. left and outlet is 1 3/8 in. right. Confirm core dimensions and mounting layout against the original radiator on the vehicle. The radiator cap is not supplied, and no oil cooler is included.

Quality Assurance

CSF states that its factories are ISO/TSO certified and that its radiators are engineered for performance validation. The brand has supplied radiators worldwide for more than 50 years and produces a broad range of applications for leading vehicle platforms.

This part fits 6 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersNotes
2025NissanSentra2.0LL4Upgraded Heavy Duty Core. 12% Thicker 30mm vs OEM 27mm
2024NissanSentra2.0LL4Upgraded Heavy Duty Core. 12% Thicker 30mm vs OEM 27mm
2023NissanSentra2.0LL4Upgraded Heavy Duty Core. 12% Thicker 30mm vs OEM 27mm
2022NissanSentra2.0LL4Upgraded Heavy Duty Core. 12% Thicker 30mm vs OEM 27mm
2021NissanSentra2.0LL4Upgraded Heavy Duty Core. 12% Thicker 30mm vs OEM 27mm
2020NissanSentra2.0LL4Upgraded Heavy Duty Core. 12% Thicker 30mm vs OEM 27mm
Directly replaces or cross-references 3 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
BBB Industries — 13852TechPro — NI301025721410-6LB0B