CSF
1 Row Plastic Tank Aluminum Core

CSF 2978 Radiator

Brand CSF 2978
Box Height (in) 5 1/2
Box Length (in) 28 1/2
Box Weight (lbs) 8
Box Width (in) 20 3/8
Cap Included No
Core Length 13 3/4
Core Material Aluminum
Core Thickness 5/8
Core Width 25 7/8
Csf Cap Number 4514
Down Flow Or Cross Flow Type Down Flow
Hazardous Material No
Inlet Diameter 1 1/8 Left
Inlet Length (in) 26 7/16
Inlet Width (in) 1 1/16
Oil Cooler (in) 14 3/4 (high-efficiency Plate Type)
Outlet Diameter 1 1/8 Right
Outlet Length (in) 26 7/16
Outlet Width (in) 1 5/16
Radiator Core Row Quantity 1
Tank Material Plastic
Tech Note O.E.M. style Plastic tanks & Aluminum core.
Product line 1 Row Plastic Tank Aluminum Core
Fits Honda · 3 vehicles

OE-style construction. Plastic tanks and an aluminum core match the original design.

Wind tunnel tested. Engineered for cooling performance validation.

1-row design. A single-row core helps keep the radiator compact.

Cross-references Anchor 2572, 19010 - PZA - A01 and 19010 - PZA - A51 for the same application. See all 7.

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CSF 2978 Radiator for Honda Civic

The CSF 2978 is an OE-style radiator built with a plastic tank and aluminum core for the 2003-2005 Honda Civic. It is engineered for direct replacement service with a down-flow design, left-side inlet, and right-side outlet to match the listed application.

Key Features

  • Fits 2003-2005 Honda Civic
  • CSF part number 2978
  • 1-row radiator with 5/8 in. core thickness
  • Aluminum core with plastic tanks
  • Down-flow configuration
  • Left inlet and right outlet layout
  • OE-style plastic tank and aluminum core construction
  • Oil cooler section: 14 3/4 in. high-efficiency plate type

Product Details

CSF designs and manufactures radiators to performance-focused standards, with production backed by ISO/TSO-certified factories and long-running global supply experience. The CSF 2978 radiator follows an OEM-style layout for the Honda Civic, using a 1-row aluminum core, plastic end tanks, and the specified inlet and outlet placement for proper cooling-system alignment. This radiator is a direct-fit replacement for 2003, 2004, and 2005 Honda Civic models listed in the fitment data. Cross-reference part numbers for this application include Anchor 2572 and HO3010183.

What This Radiator Helps Address

  • Overheating caused by a leaking or restricted radiator
  • Coolant loss from cracked plastic tanks or aged seams
  • Reduced heat transfer from a clogged or damaged core
  • Cooling-system fitment issues during radiator replacement
  • Restoring factory-style coolant flow in a Honda Civic

Installation Notes and Tips

Verify the inlet and outlet orientation before installation: this unit uses a 1 1/8 in. left inlet and 1 1/8 in. right outlet. The fitment notes specify use of a Micro, 16 psi cap, and the radiator does not include a cap. Confirm hose routing, mounting points, and transmission or oil-cooler connections against the original radiator before final assembly.

Quality Assurance

CSF radiators are engineered and wind-tunnel tested for cooling performance validation, with more than 30 million units sold worldwide across a broad catalog of applications. Part number 2978 is built as an OE-style replacement for the listed Honda Civic fitment.

This part fits 3 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersFuel TypePositionNotes
2005HondaCivic1.3LL4ELECTRIC/GASN/AOE Style Design; Use Micro, 16 psi Cap; 1 Row Plastic Tank Aluminum Core
2004HondaCivic1.3LL4ELECTRIC/GASN/AOE Style Design; Use Micro, 16 psi Cap; 1 Row Plastic Tank Aluminum Core
2003HondaCivic1.3LL4ELECTRIC/GASN/AOE Style Design; Use Micro, 16 psi Cap; 1 Row Plastic Tank Aluminum Core
Directly replaces or cross-references 7 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Anchor — 257219010 - PZA - A0119010 - PZA - A5119010-PZA-A528012572CU2572HO3010183