Denso 221-9237 Radiator
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Denso

Denso 221-9237 Radiator

Brand Denso 221-9237
Core Height 13.4600
Core Thickness 0.9800
Core Width 27.9500
Inlet Diameter 1.5630
Outlet Diameter 1.5600
Transmission Oil Cooler Included YES
Fits Subaru · 5 vehicles

OE experience. Built to meet strict OE standards for fit, performance, and reliability.

Radiator performance. Helps maintain proper engine cooling and function under demanding conditions.

Transmission oil cooler included. Adds integrated cooling support in one radiator assembly.

Cross-references APDI 8013095, CSF 3439 and DPI Performance Racing Products 13095 for the same application. See all 8.

$176.36Free shipping
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Denso Radiator for Subaru Forester

The Denso 221-9237 radiator is built for 2009-2013 Subaru Forester applications and follows OE-style dimensions for proper cooling system fitment. With an integrated transmission oil cooler and carefully matched core sizing, it supports stable engine temperature control in daily driving and demanding conditions.

  • Fits 2009-2013 Subaru Forester
  • Part number: 221-9237
  • Core height: 13.4600
  • Core width: 27.9500
  • Core thickness: 0.9800
  • Inlet diameter: 1.5630
  • Outlet diameter: 1.5600
  • Transmission oil cooler included

OE-Style Cooling Construction

Denso supplies radiators to original equipment vehicle manufacturers, and this radiator reflects that OE-focused engineering approach. The core dimensions, tank design, fin pitch, and materials are built to meet strict manufacturer standards, helping the radiator maintain consistent coolant flow and heat transfer in Subaru Forester cooling systems. The 221-9237 is a direct-fit radiator choice for drivers replacing a worn or leaking unit on 2009-2013 Subaru Forester models.

This part cross-references Subaru 45119SC020 for the same application.

Common Problems This Radiator Addresses

  • Coolant leaks from a cracked or aging radiator
  • Overheating caused by reduced heat dissipation
  • Transmission temperature concerns when the cooler circuit is part of the radiator
  • Restricted coolant flow from internal corrosion or sediment buildup
  • Fitment issues from an incorrect replacement radiator

Installation Notes and Tips

Before installation, verify hose connection sizes, mounting points, and transmission cooler line routing against the original radiator. Flush the cooling system, inspect hoses and clamps, and refill with the correct coolant mixture after installation. Bleed air from the system carefully to help prevent hot spots and temperature fluctuations.

Quality Assurance

Denso radiators are manufactured with OE experience and undergo durability and function testing before release. That testing process supports reliable performance and fitment for Subaru Forester cooling system service.

Related reading

This part fits 5 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2013SubaruForesterN/A—
2012SubaruForesterN/A—
2011SubaruForesterN/A—
2010SubaruForesterN/A—
2009SubaruForesterN/A—
Directly replaces or cross-references 8 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
APDI — 8013095CSF — 3439DPI Performance Racing Products — 13095OSC — 13095Reach Cooling — 41-13095Spectra Premium — CU13095Subaru — 45119SC020TYC Cooling - Archived — 13095