Part #: 2526

CSF 2526 Radiator

1 Row Plastic Tank Aluminum Core
⚙️ 26 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$131.81Free 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: BMW, 328i, 328is, M3, 323i, 325i, and 325is
🔄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 2526) is engineered for reliable cooling performance in select BMW models. Designed with a durable aluminum core and plastic tanks, this radiator supports efficient heat dissipation and long-term durability.

  • Core thickness: 1 1/4 inches
  • Core width: 17 1/4 inches
  • Core length: 21 11/16 inches
  • Aluminum core material with plastic tanks
  • Cross flow design for optimized coolant flow
  • Inlet and outlet diameter: 1 5/8 inches (left inlet, right outlet)
  • Compatible with BMW 323i, 325i, 325is, 328i, 328is, and M3 models
  • Does not include radiator cap

Detailed Product Description

This radiator features a single-row aluminum core measuring 1 1/4 inches thick, 17 1/4 inches wide, and 21 11/16 inches long, providing effective heat exchange for your vehicle's cooling system. The plastic tanks are designed in an OEM style, ensuring a proper fit and reliable sealing. The cross flow configuration enhances coolant circulation, which helps maintain optimal engine temperatures under various driving conditions. Both the inlet and outlet have a diameter of 1 5/8 inches, positioned on the left and right sides respectively, matching factory specifications for the compatible BMW models.

The CSF 1 Row Plastic Tank Aluminum Core product line focuses on combining lightweight plastic tanks with a robust aluminum core to balance durability and weight savings. This design approach supports efficient cooling while maintaining compatibility with original equipment mounting points and hose connections.

Applications and Common Issues Addressed

  • Replacement for leaking or cracked radiators in BMW 3 Series models (323i, 325i, 325is, 328i, 328is, M3)
  • Resolves overheating caused by clogged or damaged radiator cores
  • Addresses coolant leaks from plastic tank failures
  • Improves cooling efficiency in vehicles with aging or underperforming radiators
  • Suitable for restoring factory cooling system performance after radiator damage

Installation Notes and Tips

  • Ensure compatibility with your specific BMW model and year before installation
  • Inspect and replace radiator hoses and clamps as needed during installation
  • Bleed the cooling system properly to avoid air pockets after installation
  • Verify inlet and outlet hose diameters match the radiator connections (1 5/8 inches)
  • Use OEM-style mounting hardware to secure the radiator firmly

Quality Assurance and Warranty

The CSF 1 Row Plastic Tank Aluminum Core Radiator is manufactured to meet OEM specifications, using high-quality aluminum and plastic materials. While the radiator does not include a cap, it is designed for direct replacement with factory components. This part is free from hazardous materials and weighs approximately 10 pounds, ensuring ease of handling during installation. Warranty details should be confirmed with the distributor or manufacturer, as they may vary.

BrandCSF
Part Number2526
Position1 Row Plastic Tank Aluminum Core
Box Height (in)5 4/16
Box Length (in)28 1/2
Box Weight (lbs)10
Box Width (in)20 13/16
Cap IncludedNo
Core Length21 11/16
Core MaterialAluminum
Core Thickness1 1/4
Core Width17 1/4
Down Flow Or Cross Flow TypeCross Flow
Hazardous MaterialNo
Inlet Diameter1 5/8 Left
Inlet Length (in)17 3/4
Inlet Width (in)2 1/16
Outlet Diameter1 5/8 Right
Outlet Length (in)17 3/4
Outlet Width (in)2 1/16
Radiator Core Row Quantity1
Tank MaterialPlastic
Tech NoteO.E.M. style Plastic tanks & Aluminum core;Manufactured with steel crimp strips to strengthen Radiator by 40% over O.E.

This part fits 26 vehicles. Search below:

YearMakeModelBody TypeTransmissionLitersCylindersPositionNotes
1999BMW328i2.8LL6N/AOE Style Design; w/ E36 Body Code; 1 Row Plastic Tank Aluminum Core
1999BMW328is2.8LL6N/AOE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core
1999BMWM3CoupeManual3.2LL6N/AOE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core
1998BMW323i2.5LL6N/AOE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core
1998BMW328i2.8LL6N/AOE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core
1998BMW328is2.8LL6N/AOE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core
1998BMWM3CoupeManual3.2LL6N/AOE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core
1997BMW323i2.5LL6N/AOE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core
1997BMW325i2.5LL6N/AOE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core
1997BMW328i2.8LL6N/AOE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core
1997BMW328is2.8LL6N/AOE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core
1997BMWM3CoupeManual3.2LL6N/AOE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core
1996BMW325i2.5LL6N/AOE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core
1996BMW328i2.8LL6N/AOE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core
1996BMW328is2.8LL6N/AOE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core
1996BMWM3CoupeManual3.2LL6N/AOE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core
1995BMW325i2.5LL6N/AOE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core
1995BMW325is2.5LL6N/AOE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core
1995BMWM3CoupeManual3.0LL6N/AOE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core
1994BMW325i2.5LL6N/AOE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core
1994BMW325is2.5LL6N/AOE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core
1994BMWM3CoupeManual3.0LL6N/AOE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core
1993BMW325i2.5LL6N/AOE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core
1993BMW325is2.5LL6N/AOE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core
1992BMW325i2.5LL6N/AOE style design ensures optimal fitment and performance.; 1 Row Plastic Tank Aluminum Core
1992BMW325is2.5LL6N/AOE style design ensures optimal fitment and performance.; 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:

17 11 1 469 17917 11 1 469 90817 11 1 728 90818418011841BM3010105CU1841

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