TYC
TYC Radiator

TYC 13664 Radiator - Auxiliary

Brand TYC 13664
Position Auxiliary
Bottom Header 1.47x17.85
Core Height (in) 17.13
Core Length (in) 24.61
Core Material Aluminum
Core Thickness (in) 0.63
Flow Configuration Crossflow
Inlet Connection Type Quick Connect
Inlet Diameter (in) 0.87
Outlet Connection Type Quick Connect
Outlet Diameter (in) 0.87
Top Header 1.47x17.85
Product line TYC Radiator
Fits Volkswagen · 7 vehicles

Aluminum core. Lightweight construction helps promote efficient heat transfer.

Crossflow design. Supports even coolant flow through the radiator core.

Quick-connect fittings. Simplify hose attachment for a cleaner installation.

Cross-references Partslink VW3012113, Spectra Premium CU13445 and Volkswagen 5C0 121 251 M for the same application. See all 3.

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Order total $105.69
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TYC Auxiliary Radiator for Volkswagen Jetta

Restore cooling performance with this TYC Radiator 13664, an auxiliary radiator built for 2016-2018 Volkswagen Jetta applications. It uses an aluminum core and crossflow design with quick-connect inlet and outlet fittings for a direct replacement-style installation.

Key Features

  • Aluminum core construction for efficient heat transfer
  • Crossflow flow configuration
  • Quick-connect inlet and outlet connections
  • Inlet and outlet diameter: 0.87 in.
  • Core dimensions: 17.13 in. height, 24.61 in. length, 0.63 in. thickness
  • Top and bottom header dimensions: 1.47 x 17.85

Product Details

TYC Radiator 13664 is an auxiliary radiator engineered for the Volkswagen Jetta cooling system on 2016, 2017, and 2018 models. The aluminum core supports heat dissipation, while the crossflow layout and quick-connect fittings help match the original-style connection points for service replacement. This part cross-references Volkswagen 5C0 121 251 M and Spectra Premium CU13445 for the same application.

Common Cooling Issues It Can Address

  • Leaking or damaged auxiliary radiator core
  • Restricted coolant flow through a worn radiator assembly
  • Cooling system temperature instability
  • Cracked or brittle inlet and outlet connection points
  • Corrosion-related radiator failure

Installation Notes and Tips

Verify the auxiliary radiator position and connection style before installation. Confirm the inlet and outlet diameter, header dimensions, and core size against the removed unit to ensure proper alignment in the Volkswagen Jetta cooling system. Inspect hoses, clamps, and coolant condition during replacement to help prevent repeat service.

Quality Assurance

TYC supplies replacement cooling components built to match listed fitment and dimensional requirements for the application. This radiator is a direct-fit replacement for 2016-2018 Volkswagen Jetta auxiliary radiator service, and TYC Radiator 13664 is also referenced by Partslink VW3012113.

This part fits 7 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelBody TypeLitersCylindersPositionNotes
2018VolkswagenJettaSESedan1.4LL4AuxiliaryTYC Radiator
2018VolkswagenJettaWolfsburg EditionSedan1.4LL4AuxiliaryTYC Radiator
2018VolkswagenJettaSSedan1.4LL4AuxiliaryTYC Radiator
2017VolkswagenJettaSSedan1.4LL4AuxiliaryTYC Radiator
2017VolkswagenJettaSESedan1.4LL4AuxiliaryTYC Radiator
2016VolkswagenJettaSESedan1.4LL4AuxiliaryTYC Radiator
2016VolkswagenJettaSSedan1.4LL4AuxiliaryTYC Radiator
Directly replaces or cross-references 3 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Partslink — VW3012113Spectra Premium — CU13445Volkswagen — 5C0 121 251 M