Part #: 434

TYC 434 Radiator

TYC Radiator
⚙️ 48 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦TYC Radiator
🚗Fitment: Chevrolet and GMC, C1500, C2500, K1500, and K2500
🔄Easy Returns — Return within 60 days for a full refund
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Reliable Cooling Solution for Chevrolet and GMC Trucks

The TYC Radiator part number 434 is engineered to provide efficient cooling performance for Chevrolet and GMC trucks, including C1500, C2500, K1500, and K2500 models. Designed with durable aluminum core material and integrated transmission oil cooler, this radiator supports optimal engine temperature management under demanding conditions.

  • Core material constructed from lightweight, corrosion-resistant aluminum
  • Includes a plate-type transmission oil cooler for enhanced transmission cooling
  • Crossflow flow configuration for effective heat dissipation
  • Core dimensions: 17.24 inches height, 20.75 inches length, and 1.26 inches thickness
  • 56 fins per 4 inches with a fin wave height of 0.35 inches for improved airflow
  • Hose clamp inlet and outlet connections with diameters of 1.30 inches and 1.57 inches respectively
  • Single-row tube design with 39 tubes and 40 total fin rows
  • Top and bottom headers measuring 2.43 by 18.73 inches

TYC Radiator Product Line Overview

The TYC Radiator line focuses on delivering reliable cooling components that meet or exceed OEM specifications. This radiator model 434 integrates a plate oil cooler to support transmission fluid temperature control, which is critical for maintaining transmission performance and longevity in Chevrolet and GMC trucks. The use of aluminum core material ensures durability and efficient heat transfer, aligning with the TYC commitment to quality and fitment accuracy.

Technical Details and Features

This radiator features a crossflow design that promotes efficient coolant flow across the core, enhancing heat exchange. The aluminum core is paired with a plate-type transmission oil cooler, which is included to provide additional cooling for the transmission system. The radiator’s fin count and fin wave pitch are optimized to maximize airflow and heat dissipation. Hose clamp inlet and outlet connections simplify integration with existing cooling system hoses, with inlet and outlet diameters sized at 1.30 and 1.57 inches respectively. The single-row tube configuration with 39 tubes supports consistent coolant flow and thermal management.

Applications and Problem Solving

  • Replaces worn or leaking radiators in Chevrolet C1500, C2500, K1500, and K2500 trucks
  • Addresses overheating issues caused by inefficient heat dissipation
  • Improves transmission cooling with integrated plate oil cooler to prevent transmission fluid overheating
  • Restores proper coolant flow and pressure with precise fitment and hose clamp connections
  • Mitigates corrosion and core damage with durable aluminum construction

Installation Notes and Tips

Ensure compatibility with Chevrolet and GMC truck models C1500, C2500, K1500, and K2500 before installation. The radiator uses hose clamp type inlet and outlet connections, so verify hose sizes (1.30 inches inlet, 1.57 inches outlet) for proper fit. Handle the aluminum core carefully to avoid damage during installation. Properly bleed the cooling system after installation to remove air pockets and ensure optimal performance.

Quality Assurance and Warranty

TYC Radiator part number 434 is manufactured to meet OEM standards for fit, form, and function. The aluminum core and integrated transmission oil cooler are designed for durability and reliable operation. While specific warranty details are not provided, TYC products typically undergo rigorous quality control to ensure long-term service life and performance consistency.

BrandTYC
Part Number434
PositionTYC Radiator
Core MaterialAluminum
Transmission Oil Cooler IncludedYes
Transmission Oil Cooler TypePlate oil cooler
Engine Oil Cooler IncludedNo
Bottom Header2.43x18.73
Core Height (in)17.24
Core Length (in)20.75
Core Thickness (in)1.26
Fin Count (every 4")56
Fin Wave Height (in)0.35
Find Wave Pitch3.6
Flow ConfigurationCrossflow
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
Toc Inlet Diameter (in)5/8-18unf
Toc Inlet TypeAdapter
Toc Outlet Diameter (in)5/8-18unf
Toc Outlet TypeAdapter
Top Header2.43x18.73
Total Fin Row Count40
Total Tube Count39
Tube Count (every 4")10
Tube Width X Height32x2

This part fits 48 vehicles. Search below:

YearMakeModelTransmissionLitersCylindersPositionNotes
1993ChevroletC1500Automatic4.3LV6N/ATYC Radiator
1993ChevroletC2500Automatic4.3LV6N/ATYC Radiator
1993ChevroletK1500Automatic4.3LV6N/ATYC Radiator
1993ChevroletK2500Automatic4.3LV6N/ATYC Radiator
1993GMCC1500Automatic4.3LV6N/ATYC Radiator
1993GMCC2500Automatic4.3LV6N/ATYC Radiator
1993GMCK1500Automatic4.3LV6N/ATYC Radiator
1993GMCK2500Automatic4.3LV6N/ATYC Radiator
1992ChevroletC1500Automatic4.3LV6N/ATYC Radiator
1992ChevroletC2500Automatic4.3LV6N/ATYC Radiator
1992ChevroletK1500Automatic4.3LV6N/ATYC Radiator
1992ChevroletK2500Automatic4.3LV6N/ATYC Radiator
1992GMCC1500Automatic4.3LV6N/ATYC Radiator
1992GMCC2500Automatic4.3LV6N/ATYC Radiator
1992GMCK1500Automatic4.3LV6N/ATYC Radiator
1992GMCK2500Automatic4.3LV6N/ATYC Radiator
1991ChevroletC15004.3LV6N/ATYC Radiator
1991ChevroletC25004.3LV6N/ATYC Radiator
1991ChevroletK15004.3LV6N/ATYC Radiator
1991ChevroletK25004.3LV6N/ATYC Radiator
1991GMCC15004.3LV6N/ATYC Radiator
1991GMCC25004.3LV6N/ATYC Radiator
1991GMCK15004.3LV6N/ATYC Radiator
1991GMCK25004.3LV6N/ATYC Radiator
1990ChevroletC15004.3LV6N/ATYC Radiator
1990ChevroletC25004.3LV6N/ATYC Radiator
1990ChevroletK15004.3LV6N/ATYC Radiator
1990ChevroletK25004.3LV6N/ATYC Radiator
1990GMCC15004.3LV6N/ATYC Radiator
1990GMCC25004.3LV6N/ATYC Radiator
1990GMCK15004.3LV6N/ATYC Radiator
1990GMCK25004.3LV6N/ATYC Radiator
1989ChevroletC15004.3LV6N/ATYC Radiator
1989ChevroletC25004.3LV6N/ATYC Radiator
1989ChevroletK15004.3LV6N/ATYC Radiator
1989ChevroletK25004.3LV6N/ATYC Radiator
1989GMCC15004.3LV6N/ATYC Radiator
1989GMCC25004.3LV6N/ATYC Radiator
1989GMCK15004.3LV6N/ATYC Radiator
1989GMCK25004.3LV6N/ATYC Radiator
1988ChevroletC15004.3LV6N/ATYC Radiator
1988ChevroletC25004.3LV6N/ATYC Radiator
1988ChevroletK15004.3LV6N/ATYC Radiator
1988ChevroletK25004.3LV6N/ATYC Radiator
1988GMCC15004.3LV6N/ATYC Radiator
1988GMCC25004.3LV6N/ATYC Radiator
1988GMCK15004.3LV6N/ATYC Radiator
1988GMCK25004.3LV6N/ATYC 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:

8010434

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