One Stop Solutions 945 Radiator
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One Stop Solutions

One Stop Solutions 945 Radiator

Brand One Stop Solutions 945
Cap Included W/CAP - Micro 0.9
Cap Included YES
Core Height 15 3/4
Core Material PA
Core Row Quantity 1
Core Thickness 1-1/4
Core Thickness 32
Core Width 20
Down Flow Or Cross Flow Type DOWNFLOW
Engine Oil Cooler Included NO
Engine Oil Cooler Type NONE
Inlet Diameter 1 5/16
Inlet Header Length 20 7/8
Inlet Header Width 2 1/4
Outlet Diameter 1 5/16
Outlet Header Length 20 7/8
Outlet Header Width 2 1/4
Tank Material PLASTIC
Transmission Oil Cooler Diameter 1
Transmission Oil Cooler Distance between Fittings 12 13/16
Transmission Oil Cooler Included YES
Transmission Oil Cooler Type CONCENTRIC
Fits Toyota · 20 vehicles

O.E. form and function. Engineered for a drop-in fit with no modifications needed.

Premium aluminum construction. Built with cadmium-plated tubes to help prevent premature failure.

Individually pressure tested. Each radiator is checked during production for leak-free performance.

Cross-references Anchor 2565, BENDIX PREMIUM BRAKE SHOES 850 and Dorman - HELP 56624 for the same application. See all 7.

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OE-Style Radiator for Toyota Pickup and 4Runner

This OSC Premium radiator is built for direct replacement service on select Toyota Pickup and Toyota 4Runner applications. Part number 945 is engineered around OES form and function, with a downflow design, plastic tanks, and a premium aluminum core for dependable cooling performance.

Key Features

  • Fits select 1984-1995 Toyota Pickup and 1984-1991 Toyota 4Runner applications
  • Downflow radiator design with one-row core construction
  • Premium aluminum core with plastic tanks
  • Transmission oil cooler included with concentric cooler design
  • Cap included: W/CAP - Micro 0.9
  • Core dimensions: 15 3/4 in. height, 20 in. width, 1-1/4 in. thickness
  • Inlet and outlet diameters: 1 5/16 in.
  • Individually pressure tested during production
  • Part number 945 cross-references Spectra Premium CU945 for the same application

Detailed Description

OSC part number 945 is a replacement radiator designed for Toyota Pickup and Toyota 4Runner cooling system service where OE-style fit and function are required. The radiator uses premium-grade aluminum construction with cadmium-plated tubes and a die-cut gasket to help maintain sealing integrity. The concentric transmission oil cooler is integrated into the unit, and the radiator is built to factory-style dimensions for a direct drop-in installation on listed vehicles.

For fitment-specific searches, this radiator matches 1986-1995 Toyota Pickup, 1990-1991 Toyota 4Runner, 1986-1989 Toyota 4Runner, and 1984-1987 Toyota 4Runner applications. The design also addresses common high-mileage cooling demands with engineering updates such as increased fin density and a thicker core profile. If you are replacing a leaking or aging Toyota Pickup radiator, or servicing a Toyota 4Runner cooling system, part 945 provides an OE-style solution with the correct form factor.

Common Problems This Radiator Can Address

  • Coolant leaks from an aging or damaged radiator tank or core
  • Overheating caused by reduced cooling efficiency
  • Transmission fluid temperature concerns when the cooler circuit is part of the radiator
  • Fitment issues from non-OE-style replacement parts
  • Cooling performance loss in higher-mileage Toyota Pickup and 4Runner vehicles

Installation Notes and Tips

Verify radiator dimensions, inlet and outlet size, and transmission cooler routing before installation. This unit is built for direct replacement use on the listed Toyota applications, and the included cap should be matched to the vehicle’s cooling system requirements. Flush the cooling system, inspect hoses and clamps, and confirm that the mounting points and cooler connections are clean before installing part 945.

Quality Assurance

OSC tests the radiator core before assembly and retests the completed unit during production, including checks on the transmission and engine oil cooler circuits where equipped. The radiator is individually pressure tested and built to factory-style specifications for consistent fit and sealing on Toyota Pickup and Toyota 4Runner applications.

Related reading

This part fits 20 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelDrive TypeTransmissionLitersCylindersPositionNotes
1995ToyotaPickup—Automatic2.4LL4N/AENHANCED UNIT; CAP INCLUDED; 15 3/4" CORE; 2 ROW Equivalent
1994ToyotaPickup—Automatic2.4LL4N/AENHANCED UNIT; CAP INCLUDED; 15 3/4" CORE; 2 ROW Equivalent
1993ToyotaPickup—Automatic2.4LL4N/AENHANCED UNIT; CAP INCLUDED; 15 3/4" CORE; 2 ROW Equivalent
1992ToyotaPickup—Automatic2.4LL4N/AENHANCED UNIT; CAP INCLUDED; 15 3/4" CORE; 2 ROW Equivalent
1991Toyota4RunnerRWD—2.4LL4N/AENHANCED UNIT; CAP INCLUDED
1991ToyotaPickup—Automatic2.4LL4N/AENHANCED UNIT; CAP INCLUDED; 15 3/4" CORE; 2 ROW Equivalent
1990Toyota4RunnerRWD—2.4LL4N/AENHANCED UNIT; CAP INCLUDED
1990ToyotaPickup—Automatic2.4LL4N/AENHANCED UNIT; CAP INCLUDED; 15 3/4" CORE; 2 ROW Equivalent
1989Toyota4Runner——2.4LL4N/AENHANCED UNIT; CAP INCLUDED; 15 3/4" CORE; 2 ROW Equivalent
1989ToyotaPickup—Automatic2.4LL4N/AENHANCED UNIT; CAP INCLUDED; 15 3/4" CORE; 2 ROW Equivalent
1988Toyota4Runner——2.4LL4N/AENHANCED UNIT; CAP INCLUDED; 15 3/4" CORE; 2 ROW Equivalent
1988ToyotaPickup—Automatic2.4LL4N/AENHANCED UNIT; CAP INCLUDED; 15 3/4" CORE; 2 ROW Equivalent
1987Toyota4Runner—Manual2.4LL4N/AENHANCED UNIT; CAP INCLUDED; 15 3/4" CORE; 2 ROW Equivalent
1987Toyota4Runner—Automatic2.4LL4N/AENHANCED UNIT; CAP INCLUDED; 15 3/4" CORE; 2 ROW Equivalent; 14 3/4" TOC
1987ToyotaPickup—Automatic2.4LL4N/AENHANCED UNIT; CAP INCLUDED; 15 3/4" CORE; 2 ROW Equivalent
1986Toyota4Runner—Manual2.4LL4N/AENHANCED UNIT; CAP INCLUDED; 15 3/4" CORE; 2 ROW Equivalent
1986Toyota4Runner—Automatic2.4LL4N/AENHANCED UNIT; CAP INCLUDED; 15 3/4" CORE; 2 ROW Equivalent; 14 3/4" TOC
1986ToyotaPickup—Automatic2.4LL4N/AENHANCED UNIT; CAP INCLUDED; 15 3/4" CORE; 2 ROW Equivalent
1985Toyota4Runner—Automatic2.4LL4N/AENHANCED UNIT; CAP INCLUDED; 15 3/4" CORE; 2 ROW Equivalent; 14 3/4" TOC
1984Toyota4Runner—Automatic2.4LL4N/AENHANCED UNIT; CAP INCLUDED; 15 3/4" CORE; 2 ROW Equivalent; 14 3/4" TOC
Directly replaces or cross-references 7 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Anchor — 2565BENDIX PREMIUM BRAKE SHOES — 850Dorman - HELP — 56624Spectra Premium — CU94543319880101471640035090