TYC
TYC Radiator

TYC 1890 Radiator - Primary

Brand TYC 1890
Position Primary
Core Material Aluminum
Transmission Oil Cooler Included Yes
Transmission Oil Cooler Type Plate oil cooler
Engine Oil Cooler Included No
Bottom Header 2.42x16.59
Core Height (in) 15.08
Core Length (in) 30.51
Core Thickness (in) 1.02
Fin Count (every 4") 56
Fin Wave Height (in) 0.35
Find Wave Pitch 3.6
Flow Configuration Crossflow
Inlet Connection Type Hose clamp
Inlet Diameter (in) 1.30
No. Of Rows 1
Outlet Connection Type Hose clamp
Outlet Diameter (in) 1.30
Toc Distance (in) 11.50
Toc Inlet Diameter (in) 1/2-20unf
Toc Inlet Type Adapter
Toc Outlet Diameter (in) 1/2-20unf
Toc Outlet Type Adapter
Top Header 2.42x16.59
Total Fin Row Count 35
Total Tube Count 34
Tube Count (every 4") 10
Tube Width X Height 26x2
Product line TYC Radiator
Fits Buick and Pontiac · 10 vehicles

Aluminum core. Lightweight construction helps promote efficient heat transfer.

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

Transmission oil cooler included. Adds integrated cooling for the transmission fluid.

Cross-references APDI 8011890, General Motors 89018557 and Partslink GM3010106 for the same application. See all 5.

$150.37Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.

Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $150.37
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

TYC Radiator for Grand Prix and Regal

TYC Radiator Part Number 1890 is a direct-fit cooling replacement for select Pontiac Grand Prix and Buick Regal applications. It features an aluminum core, crossflow design, and an integrated transmission oil cooler to support factory-style cooling performance.

Key Features

  • Aluminum core construction for efficient heat transfer
  • Crossflow flow configuration
  • Transmission oil cooler included with plate oil cooler design
  • Hose clamp inlet and outlet connections
  • Single-row core layout with 34 tubes and 35 fin rows
  • Core dimensions: 30.51 in. length, 15.08 in. height, 1.02 in. thickness
  • Inlet and outlet diameter: 1.30 in.

Product Details

TYC Radiator 1890 is built for vehicles that use a radiator with an integrated transmission cooler. The aluminum core and crossflow layout are engineered to match the original cooling system architecture, while the plate-style transmission oil cooler adds the fluid-cooling function required on equipped applications. This radiator is listed for 1997-2002 Pontiac Grand Prix, 2003 Pontiac Grand Prix, and 1997-1999 Buick Regal, making it a focused replacement for these GM platforms.

This part cross-references Spectra Premium CU1890 and General Motors 89018557 for the same application.

Common Issues This Radiator Can Address

  • Coolant leaks from a damaged or corroded radiator core
  • Overheating caused by restricted or inefficient heat exchange
  • Transmission fluid temperature concerns on radiator-equipped cooling systems
  • Cracked hose necks or worn inlet and outlet connections
  • Reduced cooling performance from aging factory radiator components

Installation Notes and Tips

Verify the inlet and outlet hose sizes, transmission cooler adapter connections, and overall core dimensions before installation. Flush the cooling system, inspect hoses and clamps, and confirm the radiator mounts and fan shroud alignment match the vehicle’s original setup. For fitment reference, this radiator fits 2003 Pontiac Grand Prix, Primary; fits 1997-2002 Pontiac Grand Prix, N/A; and fits 1997-1999 Buick Regal, N/A.

Quality Assurance

TYC Radiator 1890 is built to meet application-specific replacement requirements for the listed Pontiac Grand Prix and Buick Regal models. Its OE-style construction and integrated transmission cooler support a factory-matched repair approach.

This part fits 10 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelBody TypeLitersCylindersPositionNotes
2003PontiacGrand PrixGTCoupe3.8LV6PrimaryTYC Radiator
2002PontiacGrand Prix——3.8LV6N/ATYC Radiator
2001PontiacGrand Prix——3.8LV6N/ATYC Radiator
2000PontiacGrand Prix——3.8LV6N/ATYC Radiator
1999BuickRegal——3.8LV6N/ATYC Radiator
1999PontiacGrand Prix——3.8LV6N/ATYC Radiator
1998BuickRegal——3.8LV6N/ATYC Radiator
1998PontiacGrand Prix——3.8LV6N/ATYC Radiator
1997BuickRegal——3.8LV6N/ATYC Radiator
1997PontiacGrand Prix——3.8LV6N/ATYC Radiator
Directly replaces or cross-references 5 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
APDI — 8011890General Motors — 89018557Partslink — GM3010106Spectra Premium — CU1890Vista Pro — 432425