CSF 3888 Radiator

Brand CSF 3888
Core Thickness 1 1/4
Core Width 21 11/16
Core Material Aluminum
Tank Material Plastic
Core Length 27 1/2
Inlet Diameter 1 1/2 left
Outlet Diameter 1 3/4 right
Down Flow Or Cross Flow Type Cross flow
Radiator Core Row Quantity 1
Cap Included No
Box Height (in) 8 1/16
Box Length (in) 38 3/4
Box Weight (lbs) 16
Box Width (in) 25 1/8
Hazardous Material No
Inlet Length (in) 22 11/16
Inlet Width (in) 1 5/8
Oil Cooler (in) No
Outlet Length (in) 22 11/16
Outlet Width (in) 1 5/8
Tech Note O.e.m. style plastic tank & aluminum core.
Fits Ram · 8 vehicles

OEM-style construction. Plastic tanks and an aluminum core match the original design.

Cross-flow design. Promotes efficient coolant flow for consistent cooling performance.

Wind tunnel tested. Validated in lab conditions for cooling performance.

Cross-references OSC 13772, 68341188AA and CH3010383 for the same application. See all 3.

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CSF 3888 Radiator for Ram 1500

The CSF 3888 radiator is an OE-style replacement built with an aluminum core and plastic tanks for the Ram 1500 platform. It is engineered for direct-fit cooling performance on 2019-2024 Ram 1500 and 2022-2023 Ram 1500 Classic applications, including the upgraded heavy-duty core versions noted in fitment.

Key Features

  • OE-style plastic tank and aluminum core construction
  • Cross-flow radiator design
  • 1-row core with 1 1/4 in. core thickness
  • Core dimensions: 27 1/2 in. length, 21 11/16 in. width
  • Inlet: 1 1/2 in. left; outlet: 1 3/4 in. right
  • No radiator cap included
  • Part number: 3888

Detailed Description

CSF designs and validates radiators for cooling performance, using engineering and wind-tunnel testing methods to confirm thermal efficiency. The CSF 3888 follows an OE-style layout with a plastic tank and aluminum core, making it a direct replacement choice for Ram 1500 cooling system service. This radiator is listed for 2019-2020 Ram 1500 with OE-style fitment and for 2021-2024 Ram 1500 and 2022-2023 Ram 1500 Classic with an upgraded heavy-duty core that is 11% thicker than the OEM 27 mm design. The CSF 3888 is also cross-referenced to 68341188AA, CH3010383, and OSC 13772 for the same application.

What It Helps Address

  • Overheating caused by a worn or inefficient radiator
  • Coolant leaks from aging plastic tank and core assemblies
  • Reduced heat rejection in stop-and-go driving or towing conditions
  • Cooling system service needs on Ram 1500 and Ram 1500 Classic models
  • Fitment issues from non-OE-style replacement radiators

Installation Notes

Verify inlet and outlet orientation before installation: 1 1/2 in. left inlet and 1 3/4 in. right outlet. Confirm vehicle year, model, and cooling package against the listed fitment before ordering. Transfer any required external components from the original radiator if your application uses them, and inspect hoses, clamps, and coolant condition during replacement.

Quality Assurance

CSF states that its factories are ISO/TSO certified and that its radiators are engineered to high-performance standards. The brand also notes long-term global production experience and laboratory validation methods used to confirm cooling performance.

This part fits 8 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersFuel TypePositionNotes
2024Ram15005.7LV8MILD HYBRID EV-GAS (MHEV)N/AUpgraded Heavy Duty Core. 11% Thicker 30mm vs OEM 27mm
2023Ram15005.7LV8GASN/AUpgraded Heavy Duty Core. 11% Thicker 30mm vs OEM 27mm
2023Ram1500 Classic3.6LV6—N/AUpgraded Heavy Duty Core. 11% Thicker 30mm vs OEM 27mm
2022Ram15005.7LV8MILD HYBRID EV-GAS (MHEV)N/AUpgraded Heavy Duty Core. 11% Thicker 30mm vs OEM 27mm
2022Ram1500 Classic3.6LV6—N/AUpgraded Heavy Duty Core. 11% Thicker 30mm vs OEM 27mm
2021Ram15005.7LV8GASN/AUpgraded Heavy Duty Core. 11% Thicker 30mm vs OEM 27mm
2020Ram15005.7LV8—N/AOE style design ensures optimal fitment and performance.
2019Ram15005.7LV8—N/AOE style design ensures optimal fitment and performance.
Directly replaces or cross-references 3 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
OSC — 1377268341188AACH3010383