APDI
Radiator

APDI 8012278 Radiator

Brand APDI 8012278
Construction Plastic tank aluminum
Core Height 16-9/16
Core Thickness 1
Core Width 25-1/16
Core Row Quantity 1
Inlet Diameter 1-3/8
Outlet Diameter 1-3/8
Trans Oil Cooler (in) 13-3/4
Product line Radiator
Fits Mitsubishi · 17 vehicles

OE-style replacement. Plastic tank aluminum construction for dependable cooling performance.

Single-row core. Helps promote efficient heat transfer in a compact radiator design.

Built as a radiator with integrated transmission oil cooler.

Cross-references CSF 2278, DENSO Auto Parts 221-3300 and Koyorad A2278 for the same application. See all 15.

$190.26Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
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Step 2 — Quantity
Order total $190.26
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

APDI 8012278 Radiator for Mitsubishi Montero Sport

The APDI 8012278 radiator is a direct-fit cooling system replacement for Mitsubishi Montero Sport applications. Built with a plastic tank and aluminum core, it is sized for the listed vehicle fitment and supports engine cooling with integrated transmission oil cooler provisions.

Key Features

  • Plastic tank aluminum construction for a lightweight, OE-style radiator design
  • Core dimensions: 16-9/16 in. height, 25-1/16 in. width, and 1 in. thickness
  • Single-row core design for the specified Mitsubishi cooling system layout
  • 1-3/8 in. inlet and 1-3/8 in. outlet connections
  • Includes a 13-3/4 in. transmission oil cooler section
  • APDI part number 8012278 for easy catalog matching

Product Details

This APDI radiator is engineered for Mitsubishi Montero Sport fitment and follows the dimensions and connection sizes needed for the listed applications. The plastic tank aluminum construction combines a formed tank design with an aluminum heat-exchange core, while the single-row core layout and integrated transmission oil cooler support the vehicle’s cooling and fluid-temperature management requirements. This part cross-references DENSO Auto Parts 221-3300 for the same application.

Compatible With 2012-2015 Mitsubishi Montero Sport, radiator. Compatible With 1997-2004 Mitsubishi Montero Sport, radiator. If you are replacing a leaking, clogged, or damaged radiator on a Mitsubishi Montero Sport, APDI 8012278 provides the specified core size, inlet and outlet diameters, and transmission cooler configuration for the listed vehicles.

Common Replacement Reasons

  • Coolant leaks from cracked tanks or aged seams
  • Restricted coolant flow from internal buildup or corrosion
  • Overheating caused by reduced heat transfer efficiency
  • Transmission fluid temperature concerns tied to a failing cooler section
  • Physical damage to the radiator core or fittings

Installation Notes

Verify core dimensions, inlet and outlet sizes, and transmission oil cooler routing before installation. Flush the cooling system, inspect hoses and clamps, and confirm the radiator mounts and fan shroud alignment match the vehicle. After installation, refill with the correct coolant mixture and bleed air from the system according to service procedures.

Quality Assurance

APDI offers a radiator built to match the listed Mitsubishi Montero Sport applications and the specified OE-style dimensions. Confirm fitment by year, model, and cooling-system configuration before installation.

This part fits 17 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersNotes
2015MitsubishiMontero Sport3.0LV6Radiator
2014MitsubishiMontero Sport3.0LV6Radiator
2013MitsubishiMontero Sport3.0LV6Radiator
2012MitsubishiMontero Sport3.0LV6Radiator
2004MitsubishiMontero Sport3.5LV6Radiator
2003MitsubishiMontero Sport3.0LV6Radiator
2003MitsubishiMontero Sport3.5LV6Radiator
2002MitsubishiMontero Sport3.0LV6Radiator
2002MitsubishiMontero Sport3.5LV6Radiator
2001MitsubishiMontero Sport3.5LV6Radiator
2001MitsubishiMontero Sport3.0LV6Radiator
2000MitsubishiMontero Sport3.0LV6Radiator
2000MitsubishiMontero Sport3.5LV6Radiator
1999MitsubishiMontero Sport3.0LV6Radiator
1999MitsubishiMontero Sport3.5LV6Radiator
1998MitsubishiMontero Sport3.0LV6Radiator
1997MitsubishiMontero Sport3.0LV6Radiator
Directly replaces or cross-references 15 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
CSF — 2278DENSO Auto Parts — 221-3300Koyorad — A2278OSC — 2753Spectra Premium — CU2753432483376748361CRS2278CU2278MN153206MN153207MR239627MR239629MR355474PR2278A