Part #: 2458

TYC 2458 Radiator - Primary

TYC Radiator, Primary
40 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$139.92Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
TYC Radiator, Primary
Fitment: Buick, Chevrolet, GMC, Oldsmobile, and Saab, 9-7x, Bravada, Envoy, Envoy XL, Envoy XUV, Rainier, Trailblazer, and Trailblazer EXT
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of the TYC Radiator 2458

The TYC Radiator 2458 is engineered to provide reliable cooling performance for select Buick, Chevrolet, GMC, Oldsmobile, and Saab vehicles. Designed with an aluminum core and integrated transmission oil cooler, this radiator supports efficient engine temperature management and transmission fluid cooling.

  • Core material constructed from durable aluminum for effective heat dissipation
  • Includes a plate-type transmission oil cooler for enhanced transmission cooling
  • Downflow core design with 1.02-inch thickness and 26.3-inch height
  • Hose clamp inlet and outlet connections with diameters of 1.30 and 1.57 inches respectively
  • Compatible with Buick, Chevrolet, GMC, Oldsmobile, and Saab models including Trailblazer, Envoy, and 9-7x

TYC Radiator Product Line Details

The TYC Radiator product line focuses on delivering quality cooling components that meet or exceed OEM specifications. Radiators in this line, including part number 2458, feature robust aluminum cores and integrated transmission oil coolers where applicable, ensuring compatibility and performance for a range of GM and Saab vehicles. This line emphasizes precise fitment and reliable thermal management.

Technical Specifications and Features

This radiator features a single-row core with dimensions of 26.3 inches in height, 18.03 inches in length, and 1.02 inches in thickness. The core includes 66 tubes and 67 fin rows, with a fin count of 73 every 4 inches, designed to optimize airflow and heat exchange. The downflow configuration supports efficient coolant circulation. Both the top and bottom headers measure 2.35 by 27.55 inches. The radiator also incorporates a plate-type transmission oil cooler with a 11.5-inch distance for transmission oil cooling, while engine oil cooling is not included.

Compatible Vehicles and Applications

  • Buick Rainier and Saab 9-7x models requiring reliable radiator replacement
  • Chevrolet Trailblazer, Trailblazer EXT, Envoy, Envoy XL, and Envoy XUV vehicles
  • GMC Bravada and Envoy series needing integrated transmission oil cooling
  • Oldsmobile models compatible with this radiator design
  • Ideal for addressing overheating, coolant leaks, and transmission fluid temperature issues

Installation Notes and Tips

Installation requires proper handling of hose clamp connections for both inlet and outlet ports, sized at 1.30 and 1.57 inches respectively. Ensure the radiator is securely mounted with correct alignment to the vehicle’s cooling system. Verify transmission oil cooler lines are properly connected to maintain fluid flow. It is recommended to inspect all hoses and clamps for wear during installation.

Quality Assurance and Warranty

The TYC Radiator 2458 is manufactured to meet industry standards for durability and performance. Constructed with an aluminum core and integrated transmission oil cooler, it is designed for long-term reliability. Warranty details should be confirmed with the distributor or manufacturer, as they may vary by region.

BrandTYC
Part Number2458
PositionTYC Radiator, Primary
Core MaterialAluminum
Transmission Oil Cooler IncludedYes
Transmission Oil Cooler TypePlate oil cooler
Engine Oil Cooler IncludedNo
Bottom Header2.35x27.55
Core Height (in)26.3
Core Length (in)18.03
Core Thickness (in)1.02
Fin Count (every 4")73
Fin Wave Height (in)0.31
Find Wave Pitch2.8
Flow ConfigurationDownflow
Inlet Connection TypeHose clamp
Inlet Diameter (in)1.30
No. Of Rows1
Outlet Connection TypeHose clamp
Outlet Diameter (in)1.57
Toc Distance (in)11.50
Top Header2.35x27.55
Total Fin Row Count67
Total Tube Count66
Tube Count (every 4")10
Tube Width X Height26x2

This part fits 40 vehicles. Search below:

YearMakeModelSubmodelBody TypeTransmissionLitersCylindersPositionNotes
2009ChevroletTrailblazerLTSport Utility4.2LL6PrimaryTYC Radiator
2009GMCEnvoySLTSport Utility4.2LL6PrimaryTYC Radiator
2009Saab9-7x4.2iSport Utility4.2LL6PrimaryTYC Radiator
2008ChevroletTrailblazerAutomatic4.2LL6N/ATYC Radiator
2008GMCEnvoyAutomatic4.2LL6N/ATYC Radiator
2008Saab9-7x4.2iSport Utility4.2LL6PrimaryTYC Radiator
2007BuickRainierAutomatic4.2LL6N/ATYC Radiator
2007ChevroletTrailblazerAutomatic4.2LL6N/ATYC Radiator
2007GMCEnvoyAutomatic4.2LL6N/ATYC Radiator
2007Saab9-7x4.2iSport Utility4.2LL6PrimaryTYC Radiator
2006BuickRainierAutomatic4.2LL6N/ATYC Radiator
2006ChevroletTrailblazerAutomatic4.2LL6N/ATYC Radiator
2006ChevroletTrailblazer EXTLSSport Utility4.2LL6PrimaryTYC Radiator
2006GMCEnvoyAutomatic4.2LL6N/ATYC Radiator
2006GMCEnvoy XLSLTSport Utility4.2LL6PrimaryTYC Radiator
2006Saab9-7x4.2iSport Utility4.2LL6PrimaryTYC Radiator
2005BuickRainierAutomatic4.2LL6N/ATYC Radiator
2005ChevroletTrailblazerAutomatic4.2LL6N/ATYC Radiator
2005ChevroletTrailblazer EXTLSSport Utility4.2LL6PrimaryTYC Radiator
2005GMCEnvoyAutomatic4.2LL6N/ATYC Radiator
2005GMCEnvoy XLSLESport Utility4.2LL6PrimaryTYC Radiator
2005GMCEnvoy XUVSLTSport Utility4.2LL6PrimaryTYC Radiator
2005Saab9-7xLinearSport Utility4.2LL6PrimaryTYC Radiator
2004BuickRainierAutomatic4.2LL6N/ATYC Radiator
2004ChevroletTrailblazerAutomatic4.2LL6N/ATYC Radiator
2004ChevroletTrailblazer EXTLSSport Utility4.2LL6PrimaryTYC Radiator
2004GMCEnvoyAutomatic4.2LL6N/ATYC Radiator
2004GMCEnvoy XLSLESport Utility4.2LL6PrimaryTYC Radiator
2004GMCEnvoy XUVSLESport Utility4.2LL6PrimaryTYC Radiator
2004OldsmobileBravadaSport Utility4.2LL6PrimaryTYC Radiator
2003ChevroletTrailblazerAutomatic4.2LL6N/ATYC Radiator
2003ChevroletTrailblazer EXTLSSport Utility4.2LL6PrimaryTYC Radiator
2003GMCEnvoyAutomatic4.2LL6N/ATYC Radiator
2003GMCEnvoy XLSLTSport Utility4.2LL6PrimaryTYC Radiator
2003OldsmobileBravadaSport Utility4.2LL6PrimaryTYC Radiator
2002ChevroletTrailblazerAutomatic4.2LL6N/ATYC Radiator
2002ChevroletTrailblazer EXTLTSport Utility4.2LL6PrimaryTYC Radiator
2002GMCEnvoyAutomatic4.2LL6N/ATYC Radiator
2002GMCEnvoy XLSLESport Utility4.2LL6PrimaryTYC Radiator
2002OldsmobileBravadaSport Utility4.2LL6PrimaryTYC Radiator

* 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:

21505

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