One Stop Solutions 2291 Radiator

Brand One Stop Solutions 2291
Cap Included NO
Core Height 31 5/8
Core Material PA
Core Row Quantity 1
Core Thickness 1-1/4
Core Thickness 32
Core Width 19 3/16
Down Flow Or Cross Flow Type CROSSFLOW
Engine Oil Cooler Included NO
Engine Oil Cooler Type NONE
Inlet Diameter 1 1/2
Inlet Header Length 20 5/16
Inlet Header Width 2 1/2
Outlet Diameter 1 3/4
Outlet Header Length 20 5/16
Outlet Header Width 2 1/2
Tank Material PLASTIC
Transmission Oil Cooler Distance between Fittings 12
Transmission Oil Cooler Included YES
Transmission Oil Cooler Type PLATED
Fits Dodge · 15 vehicles

O.E. form and function. Engineered as a direct-fit radiator with hassle-free installation.

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

Individually pressure tested. Built for dependable cooling and a longer service life.

Cross-references APDI 8011552, Koyorad A2291 and Spectra Premium CU2291 for the same application. See all 6.

$196.61Free shipping
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Radiator for Dodge Ram 1500, Ram 2500, Ram 3500

One Stop Solutions Part Number 2291 is an OSC Premium New Automotive Radiator built to match original equipment form and function. It is engineered for direct replacement use in select Dodge Ram 1500, Ram 2500, Ram 3500, and Ramcharger applications, with a crossflow design and integrated transmission oil cooler for factory-style cooling performance.

Key Features

  • Premium-grade aluminum construction with plastic tanks
  • Crossflow radiator design for OE-style fitment
  • Transmission oil cooler included; engine oil cooler not included
  • Single-row core design with cadmium-plated tubes inside and out
  • Die-cut gasket design to help maintain a leak-resistant seal
  • Individually pressure tested during production
  • Multi-fit engineering without changing the original look or fit
  • Fits 2001-2002 Dodge Ram 1500, 1998-2002 Dodge Ram 2500, 1998-2002 Dodge Ram 3500, and 1999 Dodge Ramcharger

Detailed Description

This radiator is built around the original equipment layout for select Dodge trucks and SUV applications, including 2001-2002 Dodge Ram 1500, 1998-2002 Dodge Ram 2500, 1998-2002 Dodge Ram 3500, and 1999 Dodge Ramcharger. Part Number 2291 uses premium aluminum core construction with plastic tanks, a 31 5/8-inch core height, 19 3/16-inch core width, and 1-1/4-inch core thickness to support efficient heat transfer in demanding cooling systems. The unit includes a plated transmission oil cooler and uses factory-style fittings and header dimensions for a direct replacement installation.

OSC designs this radiator with added durability features such as cadmium-plated tubes, a die-cut gasket, and factory-spec component fitment. The radiator is tested before assembly and again after assembly, with cooler testing performed prior to tank installation. This makes Part Number 2291 a practical choice for owners servicing a high-mileage Dodge Ram 1500, Ram 2500, Ram 3500, or Ramcharger cooling system.

Common Problems This Radiator Can Address

  • Overheating caused by a worn or restricted radiator core
  • Transmission temperature concerns related to a failing integrated cooler
  • Coolant leaks from aged tanks, seals, or core connections
  • Reduced cooling efficiency from corrosion or internal blockage
  • Fitment issues when replacing a damaged OE-style radiator

Installation Notes and Tips

Verify radiator dimensions, inlet and outlet sizes, and cooler line spacing before installation. This unit is designed for direct replacement use in the listed Dodge Ram and Ramcharger applications, but cooling system condition should also be checked for debris, hose wear, and thermostat performance during service. Because the radiator includes a transmission oil cooler, confirm line routing and connection points match the vehicle before final assembly.

Quality Assurance

OSC states that each radiator is individually pressure tested and that the core and cooler assemblies are tested during production. The design also incorporates engineering updates aimed at improving durability and cooling life in higher-mileage vehicles. Part Number 2291 cross-references Spectra Premium CU2291 for the same application.

This part fits 15 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersFuel TypePositionNotes
2002DodgeRam 15003.9LV6—N/A—
2002DodgeRam 25005.9LV8GASN/A—
2002DodgeRam 35005.9LV8GASN/A—
2001DodgeRam 15003.9LV6—N/A—
2001DodgeRam 15005.2LV8—N/A—
2001DodgeRam 15005.9LV8—N/A—
2001DodgeRam 25005.9LV8GASN/A—
2001DodgeRam 35005.9LV8GASN/A—
2000DodgeRam 25005.9LV8GASN/A—
2000DodgeRam 35005.9LV8GASN/A—
1999DodgeRam 25005.9LV8GASN/A—
1999DodgeRam 35005.9LV8GASN/A—
1999DodgeRamcharger5.9LV8—N/A—
1998DodgeRam 25005.9LV8GASN/A—
1998DodgeRam 35005.9LV8GASN/A—
Directly replaces or cross-references 6 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
APDI — 8011552Koyorad — A2291Spectra Premium — CU22915024852029189CH3010151