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  See more parts for BMW 525i
Select the year of your BMW 525i:
CSF Radiators OEM Plastic Radiator for BMW 525i 2.5L 2004-2005, Aluminum Core, Crossflow Design - 3450
CSF Radiators OEM Plastic Radiator for BMW 525i 2.5L 2004-2005, Aluminum Core, Crossflow Design - 3450 - Image 2 CSF Radiators OEM Plastic Radiator for BMW 525i 2.5L 2004-2005, Aluminum Core, Crossflow Design - 3450 - Image 2

CSF 3450 Engine Coolant Radiator

The CSF 3450 Engine Coolant Radiator is engineered to maintain optimal engine temperatures, ensuring reliability and longevity for your BMW 525i (2004-2005). This radiator is designed with precision and quality in mind, making it an excellent choice for those looking to replace a faulty cooling component.

Specifications

  • Radiator Type: Crossflow
  • Rows: 1
  • Core Length: 23 5/8 inches
  • Core Width: 19 inches
  • Core Thickness: 1 1/4 inches
  • Core Material: Aluminum
  • Tank Material: Aluminum
  • Inlet Location: Upper Driver Side
  • Outlet Location: Lower Passenger Side
  • Inlet Diameter: 1 1/2 inches
  • Outlet Diameter: 1 1/2 inches

Features

  • OEM specified Plastic Tank-Aluminum Core Construction
  • Tanks constructed from Virgin Grade Engineered plastic resins, enhanced with "Glass Filled" technology for superior strength
  • Special Grade "EPDM" rubber gaskets designed to withstand extreme temperatures up to -120°F
  • High Performance "Multi-Louvered Design" fins for enhanced cooling efficiency
  • 100% leak tested at 150% of operating pressure before leaving the factory
  • Robust packaging designed to withstand a "10 Foot Drop Test"
  • All components are meticulously installed, torqued, and tested during assembly

Manufacturer Commitment

CSF has been a leader in the automotive cooling industry for over 50 years, providing high-quality aftermarket radiators designed to meet or exceed OEM specifications. With a focus on advanced manufacturing techniques and rigorous testing, CSF ensures that their radiators deliver exceptional performance and durability. The 3450 model is no exception, crafted to fit seamlessly into your BMW and provide reliable cooling under demanding conditions.

Fitment

  • BMW 525i 2004-2005

Installation Notes

  • Inspect the old radiator pressure cap for any signs of wear before installation.

Other Part Numbers:
CSF Radiators #csf3450

Proposition 65

⚠ WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Vehicle
2004-2005
 BMW 525i
CSF Radiator

Anyone who needs a new radiator should consider buying a CSF radiator. A CSF radiator and CSF cooling system offers the best performance for driving and racing enthusiasts. If you have a faulty radiator or are looking to upgrade to a high-performance radiator, a CSF radiator will get the job done. 

What is a CSF Radiator?

During the last 40 years, CSF has manufactured over 10,000 different models of radiators, oil coolers, heat exchangers and condensers for Automotive, Truck, Industrial and Marine applications. Today, their products are sold in over 60 countries throughout the world. Their US Aftermarket Division stocks over 1000 models that cover over 2100 applications for all popular Import vehicles.

CSF supplies radiators and condensers that are designed to meet or exceed original equipment (OE) engineering specifications. Their plants meet ISO 9000 standards and provide parts to OE manufacturers, and to top it all off - check out their industry leading warranty. Simply put, you cannot buy, sell, install or own a better value radiator or condenser.

Why Should I Buy a CSF Radiator? 

A CSF radiator offers a number of benefits over the competition. Below, we explain the main reasons why you should buy a CSF radiator.

A Market Leader for over 45 Years

CSF has been a market leader for over 45 years, as the company was initially established in 1975 and have been selling CSF radiators ever since. Over time, a CSF radiator has become known for its innovative design and impeccable quality.

High-Quality Radiator Testing

Every single CSF radiator and CSF cooling system has been put through a rigorous series of tests to make sure every system is reliable and performs at a high level. In their testing lab, CSF puts in the time to make sure every product works perfectly. 

Cutting-Edge Technology

Each CSF radiator uses cutting-edge technology to bring customers the best CSF full cooling system possible. CSF racing radiators combine a high-efficiency core, advanced endtank designs, and innovative design and engineering to give our customers the most advanced and efficient radiator possible.  

Get a CSF Radiator or CSF Cooling System From Vivid Racing 

Vivid Racing carries a wide selection of CSF radiator products, including CSF cooling systems and other accessories. If you are interested in learning more or would like to purchase a CSF radiator, please contact Vivid Racing today by calling (480) 966-3040.

CSF takes pride in the quality of its products and offers one of the best warranty’s in the industry. Please refer to the CSF warranty card in the shipping carton for details.

CSF warranty is applicable only to the original owner of the vehicle. Original paper work verifying the proof of purchase and pre-installation cooling system checklist signed by the professional installer is required to process warranty claims.

All warranty claims should be directed to the point of purchase. Due to CSF’s established agreements with Authorized CSF Warehouse Distributors, CSF is unable to handle and/or process warranty related calls/inquires from any individuals – all inquires/warranty related claims should be directed to the point of purchase or an authorized warehouse distributor.

Take care of your radiator, as under circumstances listed below the warranty will be void.

If the radiator is installed and is returned deformed (bulging tanks, warped core etc.), this is an indication that the radiator is the victim of some other problem and not the cause. The deformation is a result of the radiator being subjected to extremely high pressure and or temperature caused by any of the following reasons:Defective Pressure Cap, Defective Head Gasket, Defective Temperature gauge (incorrect readings), Defective Water Pump etc. Such units are not covered under the warranty.

If a radiator seems to have a “fit problem” there is the possibility that there is some confusion about a multi-fit radiator that might look different. Your nearest CSF WD can clarify the application, just give them a call. A perceived fit problem is not covered under warranty.

If a unit is damaged in shipping, please file a claim with the carrier. Damages caused during shipping, installation or handling are not covered under warranty.

Any repairs or alterations to the unit will automatically void the warranty.

Any form of abuse, including the use of improper coolant mixtures, damage caused by steam, corrosion etc and use on commercial vehicles voids the warranty. It is the vehicle owners’ responsibility to maintain the cooling system as specified in the owners manual.

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