Part #: 2381

One Stop Solutions 2381 Radiator

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Radiator for OE-Style Cooling Performance

One Stop Solutions Part Number 2381 is an OSC Premium New Automotive Radiator built to OE form and function. It uses premium-grade aluminum construction with plastic tanks, a crossflow design, and a concentric transmission oil cooler to support stable engine temperatures and reliable heat transfer.

For shoppers searching for a radiator replacement for Honda Civic, Acura Integra, or similar applications, Part Number 2381 is engineered for direct-fit service with factory-style dimensions and a leak-resistant gasket design.

Key Features

  • OE-style radiator design with crossflow layout
  • Premium-grade aluminum core construction with plastic tanks
  • Concentric transmission oil cooler included
  • Die-cut gasket design for improved sealing
  • Individually pressure tested during production
  • Factory-spec fitted and torqued components
  • Drop-in fit for easier radiator replacement
  • Part Number 2381 for application matching and catalog lookup

Detailed Product Overview

This radiator is built with a 25 13/16-inch core height, 15 1/16-inch core width, and 5/8-inch core thickness, along with 1 5/16-inch inlet and outlet diameters. The unit includes a transmission oil cooler with a concentric design and no engine oil cooler. OSC uses engineering updates to address common failure points found in higher-mileage cooling systems, including improved fin density and thicker core construction where applicable. Part Number 2381 is a practical choice for drivers needing a radiator replacement that matches OE-style fit and cooling layout.

This part cross-references APDI 8012381 and Spectra Premium CU2381 for the same application.

Common Problems This Radiator Can Address

  • Overheating caused by a leaking or restricted radiator core
  • Transmission fluid temperature concerns related to a failing cooler circuit
  • Coolant loss from cracked tanks or weakened seals
  • Poor heat rejection from an aging or clogged radiator
  • Fitment issues after replacing a damaged OE radiator

Installation Notes and Fitment

Compatible with select Honda Civic and Acura Integra applications. Fitment language should be verified against the vehicle’s year, engine, and cooling configuration before installation. The radiator is designed as a drop-in replacement with factory-style mounting and included fittings or hardware where required by the unit design. Part Number 2381 is intended for straightforward radiator replacement service in OE-style cooling systems.

Quality Assurance

OSC radiators are individually pressure tested, with cooler circuits checked before tank installation and the completed assembly tested again after build. The design follows OE-style cooler architecture and uses premium materials selected for durability and consistent cooling performance. Part Number 2381 reflects OSC’s multi-stage testing and factory-spec assembly approach.

BrandOne Stop Solutions
Part Number2381
Core Height25 13/16
Core Thickness16
Core Thickness5/8
Core Width15 1/16
Inlet Header Length16 1/16
Outlet Header Length16 1/8
Core MaterialPa
Tank MaterialPlastic
Transmission Oil Cooler IncludedYes
Inlet Header Width1 15/16
Outlet Header Width2 3/16
Transmission Oil Cooler TypeConcentric
Transmission Oil Cooler Diameter1
Transmission Oil Cooler Distance between Fittings10
Engine Oil Cooler TypeNone
Core Row Quantity1
Inlet Diameter1 5/16
Outlet Diameter1 5/16
Engine Oil Cooler IncludedNo
Down Flow Or Cross Flow TypeCrossflow
Cap IncludedNo
BulletPoint 1Hassle free installation
BulletPoint 2O.e. performance and exceptional quality
BulletPoint 3Engineering enhancements provide improved cooling and longer life
BulletPoint 4Components are fitted and torqued in place to factory specificati
BulletPoint 5Premium grade tubes, fins, headers, tanks, and other components a
BulletPoint 6Drop in fit, form and function. all necessary fittings or hardwar
BulletPoint 7Complete radiators 100% tested up to three times during productio
BulletPoint 8Enhancements added to solve original design failures and to impro

This part fits 0 vehicles. Search below:

YearMakeModelPositionNotes

* 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:

801238196351103CU2381DA3010110

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