Part #: 3099

CSF 3099 Radiator

1 Row Plastic Tank Aluminum Core
⚙️ 10 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$137.78Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
📦1 Row Plastic Tank Aluminum Core
🚗Fitment: Subaru, Forester and Impreza
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of CSF 1 Row Plastic Tank Aluminum Core Radiator

The CSF 1 Row Plastic Tank Aluminum Core Radiator, part number 3099, is engineered for Subaru Forester and Impreza models. Designed with a durable aluminum core and plastic tanks, this radiator offers reliable cooling performance tailored to specific vehicle requirements.

  • Core thickness: 5/8 inch
  • Core width: 27 1/16 inches
  • Core length: 13 3/8 inches
  • Aluminum core material with plastic tanks
  • Down flow design with 1 row core
  • Inlet and outlet diameters: 1 1/2 inches (right inlet, left outlet)
  • Includes high-efficiency concentric type oil cooler (14 3/4 inches)
  • Cap not included (CSF cap number 4503 compatible)

Details on the 1 Row Plastic Tank Aluminum Core Product Line

The CSF 1 Row Plastic Tank Aluminum Core line features radiators constructed with OEM-style plastic tanks combined with a robust aluminum core. This design balances weight and durability while maintaining effective heat dissipation. The single-row core thickness of 5/8 inch supports efficient coolant flow, making it suitable for Subaru Forester and Impreza vehicles requiring precise cooling system components.

Technical Description and Specifications

This radiator (part number 3099) incorporates a down flow core design with a single row of aluminum fins measuring 27 1/16 inches wide and 13 3/8 inches long. The plastic tanks are engineered to OEM specifications, ensuring compatibility and durability. The inlet and outlet ports are both 1 1/2 inches in diameter, positioned on the right and left sides respectively, facilitating proper coolant circulation. Additionally, the integrated oil cooler is a high-efficiency concentric type measuring 14 3/4 inches, enhancing engine oil temperature regulation.

Applications and Problem Solving

  • Replacement radiator for Subaru Forester and Impreza models
  • Resolves overheating issues caused by damaged or inefficient radiators
  • Addresses coolant leaks from worn or cracked plastic tanks
  • Improves engine cooling performance with aluminum core construction
  • Supports oil temperature control through integrated oil cooler

Installation Notes and Tips

Ensure compatibility with your specific Subaru Forester or Impreza model before installation. This radiator does not include a cap; use CSF cap number 4503 or an equivalent OEM cap. Verify inlet and outlet hose connections match the 1 1/2 inch diameter ports on the right and left sides. Properly bleed the cooling system after installation to avoid air pockets and ensure optimal performance.

Quality Assurance and Warranty

The CSF 1 Row Plastic Tank Aluminum Core Radiator is manufactured to meet OEM standards for fit and function. It is constructed without hazardous materials and weighs approximately 8 pounds. While specific warranty details are not provided, CSF products typically adhere to industry quality controls to ensure durability and reliability in automotive cooling applications.

BrandCSF
Part Number3099
Position1 Row Plastic Tank Aluminum Core
Core Thickness5/8
Core Width27 1/16
Core MaterialAluminum
Tank MaterialPlastic
Core Length13 3/8
Inlet Diameter1 1/2 right
Outlet Diameter1 1/2 left
Down Flow Or Cross Flow TypeDown flow
Radiator Core Row Quantity1
Cap IncludedNo
Box Height (in)4 11/16
Box Length (in)30 7/8
Box Weight (lbs)8
Box Width (in)20 9/16
Csf Cap Number4503
Hazardous MaterialNo
Inlet Length (in)27 13/16
Inlet Width (in)1 5/8
Oil Cooler (in)14 3/4 (high-effeciency concentric type)
Outlet Length (in)27 13/16
Outlet Width (in)2
Tech NoteO.e.m. style plastic tanks & aluminum core.

This part fits 10 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2002SubaruForester2.5LH4N/AOE style design with Mini 16 psi cap.; 1 Row Plastic Tank Aluminum Core
2001SubaruForester2.5LH4N/AOE style design with Mini 16 psi cap.; 1 Row Plastic Tank Aluminum Core
2001SubaruImpreza2.2LH4N/AOE style design with Mini 16 psi cap.; 1 Row Plastic Tank Aluminum Core
2001SubaruImpreza2.5LH4N/AOE style design with Mini 16 psi cap.; 1 Row Plastic Tank Aluminum Core
2000SubaruForester2.5LH4N/AOE style design with Mini 16 psi cap.; 1 Row Plastic Tank Aluminum Core
2000SubaruImpreza2.5LH4N/AOE style design with Mini 16 psi cap.; 1 Row Plastic Tank Aluminum Core
2000SubaruImpreza2.2LH4N/AOE style design with Mini 16 psi cap.; 1 Row Plastic Tank Aluminum Core
1999SubaruForester2.5LH4N/AOE style design with Mini 16 psi cap.; 1 Row Plastic Tank Aluminum Core
1999SubaruImpreza2.2LH4N/AOE style design with Mini 16 psi cap.; 1 Row Plastic Tank Aluminum Core
1999SubaruImpreza2.5LH4N/AOE style design with Mini 16 psi cap.; 1 Row Plastic Tank Aluminum Core

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

221-36022211240245111 FC34045111 FC3708012402CU2402SU3010105SU3010106

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.