One Stop Solutions 2427 Radiator

Brand One Stop Solutions 2427
Cap Included NO
Core Height 17 11/16
Core Material PA
Core Row Quantity 1
Core Thickness 1
Core Thickness 26
Core Width 28 1/2
Down Flow Or Cross Flow Type DOWNFLOW
Engine Oil Cooler Included NO
Engine Oil Cooler Type NONE
Inlet Diameter 1 3/8
Inlet Header Length 29 7/16
Inlet Header Width 2
Outlet Diameter 1 3/8
Outlet Header Length 29 7/16
Outlet Header Width 2
Tank Material PLASTIC
Transmission Oil Cooler Diameter 1 1/8
Transmission Oil Cooler Distance between Fittings 14 3/4
Transmission Oil Cooler Included YES
Transmission Oil Cooler Type CONCENTRIC
Fits Toyota · 3 vehicles

O.E. form and function. Drop-in fit with hassle-free installation.

Premium aluminum construction. Cadmium-plated tubes help resist premature failure.

Individually pressure tested. Built with a die-cut gasket to help prevent leaks.

Cross-references APDI 8012153, Dorman - HELP 56618 and Koyorad A2427 for the same application. See all 5.

$130.90Free shipping
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Radiator for Toyota Sienna 2001-2003

Replace a worn cooling system component with this OSC Premium New Automotive Radiator from One Stop Solutions. Part number 2427 is built for 2001-2003 Toyota Sienna applications and follows OE-style form and function for a direct-fit replacement.

Key Features

  • Fits 2001-2003 Toyota Sienna, N/A
  • Downflow radiator design with plastic tanks and a PA core
  • Core size: 17 11/16 in. height x 28 1/2 in. width x 1 in. thickness
  • Transmission oil cooler included with concentric cooler design
  • Inlet and outlet diameters: 1 3/8 in.
  • Engine oil cooler not included
  • Factory-style fitment with OE performance and component placement
  • Part number 2427

Detailed Description

OSC builds this radiator to match original equipment form and function for the Toyota Sienna. The design uses premium-grade aluminum construction with cadmium-plated tubes inside and out to help resist premature failure, while the radiator assembly is pressure tested during production. The transmission cooler is integrated into the tank design, and the unit is engineered for multi-fit without changing the appearance or fit of the original application. This part cross-references APDI 8012153 for the same application.

Common Problems This Radiator Can Address

  • Coolant leaks from a cracked or aging radiator tank
  • Overheating caused by restricted or inefficient heat transfer
  • Transmission fluid temperature issues related to a failing cooler circuit
  • Corrosion or internal wear in the original radiator core
  • Poor fit or sealing from a previous replacement radiator

Installation Notes and Tips

Confirm radiator dimensions, inlet and outlet size, and cooler configuration before installation. This radiator is a downflow design with a concentric transmission cooler, so matching the original cooling layout on your Toyota Sienna is important for proper installation. Inspect hoses, clamps, and related cooling system components before reassembly to help prevent repeat leaks.

Quality Assurance

OSC tests the transmission and engine oil coolers before tank installation, checks the radiator core before assembly, and tests the completed unit again after assembly. The design also incorporates factory-spec component placement and torque procedures to support consistent fit and sealing. Part number 2427 is engineered as an OE-style replacement for 2001-2003 Toyota Sienna cooling system service.

This part fits 3 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2003ToyotaSienna3.0LV6N/A—
2002ToyotaSienna3.0LV6N/A—
2001ToyotaSienna3.0LV6N/A—
Directly replaces or cross-references 5 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
APDI — 8012153Dorman - HELP — 56618Koyorad — A2427164000A270CU2427