Universal Air
Crossflow Radiator

Universal Air RA13871C Radiator

Brand Universal Air RA13871C
Product line Crossflow Radiator
Fits Ram · 26 vehicles

Crossflow design. Built for radiator replacement service in application-specific cooling systems.

Application-specific fitment. Listed for Ram heavy-duty cooling system replacements.

Part number RA13871C. Use this identifier to match the correct radiator line.

$217.77Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $217.77
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Crossflow Radiator for Ram HD Trucks

The Universal Air RA13871C is a crossflow radiator built for Ram heavy-duty cooling system service. It is listed for Ram 2500 and Ram 3500 applications from 2019-2021, with fitment focused on crossflow radiator configurations.

Key Features

  • Crossflow radiator design for direct cooling system replacement
  • Fits Ram 2500 and Ram 3500 applications from 2019-2021
  • Part number RA13871C for accurate ordering and identification
  • Universal Air Crossflow Radiator product line

Detailed Description

RA13871C is a radiator replacement for Ram 2500 and Ram 3500 trucks in the 2019-2021 model years. As part of Universal Air's Crossflow Radiator line, it is organized around the radiator configuration rather than a generic universal fit, which helps narrow selection for Ram cooling system repairs. Use RA13871C when replacing a crossflow radiator on the listed Ram HD applications.

What It Is Used For

  • Replacing a leaking or damaged radiator
  • Restoring coolant flow through the cooling system
  • Addressing overheating caused by radiator failure
  • Correcting cooling performance loss from internal blockage or corrosion

Installation Notes and Tips

Verify the existing radiator configuration before ordering and match the vehicle application to the listed Ram 2500 or Ram 3500 fitment. Confirm the part number RA13871C against the original unit and inspect related cooling system components during service.

Quality Assurance

Universal Air identifies this part within its Crossflow Radiator line for application-specific cooling system replacement. Confirm fitment details against the vehicle and radiator configuration before installation.

This part fits 26 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelLitersCylindersFuel TypeNotes
2021Ram2500Limited6.7LL6DIESELCrossflow Radiator
2021Ram2500Tradesman6.7LL6DIESELCrossflow Radiator
2021Ram2500Laramie6.7LL6DIESELCrossflow Radiator
2021Ram2500Big Horn6.7LL6DIESELCrossflow Radiator
2021Ram2500Limited Longhorn6.7LL6DIESELCrossflow Radiator
2021Ram3500Limited6.7LL6DIESELCrossflow Radiator
2021Ram3500Tradesman6.7LL6DIESELCrossflow Radiator
2021Ram3500Laramie6.7LL6DIESELCrossflow Radiator
2021Ram3500Big Horn6.7LL6DIESELCrossflow Radiator
2021Ram3500Limited Longhorn6.7LL6DIESELCrossflow Radiator
2020Ram2500Limited6.7LL6DIESELCrossflow Radiator
2020Ram2500Tradesman6.7LL6DIESELCrossflow Radiator
2020Ram2500Laramie Longhorn6.7LL6DIESELCrossflow Radiator
2020Ram2500Laramie6.7LL6DIESELCrossflow Radiator
2020Ram2500Big Horn6.7LL6DIESELCrossflow Radiator
2020Ram2500Lone Star6.7LL6DIESELCrossflow Radiator
2020Ram2500Laramie Limited6.7LL6DIESELCrossflow Radiator
2020Ram3500—6.7LL6DIESELCrossflow Radiator
2019Ram2500Laramie6.7LL6DIESELCrossflow Radiator
2019Ram2500Laramie Longhorn6.7LL6DIESELCrossflow Radiator
2019Ram2500Laramie Limited6.7LL6DIESELCrossflow Radiator
2019Ram2500Limited6.7LL6DIESELCrossflow Radiator
2019Ram2500Big Horn6.7LL6DIESELCrossflow Radiator
2019Ram2500Tradesman6.7LL6DIESELCrossflow Radiator
2019Ram2500Lone Star6.7LL6DIESELCrossflow Radiator
2019Ram3500—6.7LL6DIESELCrossflow Radiator