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CSF BMW E90/E92/E93 M3 High Performance Power Steering Cooler



Regular price $439.95
Sale price $439.95 Regular price
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Addresses overheating conditions on track driven E9X M3's preventing power steering system overflows and damaged components, offers an 83% increase in surface area and lab tested to be ~40% more efficient than stock power steering coolers

Track driven E9X M3's are known to have issues with stock power steering coolers. Due to the OE coolers low efficiency it's not uncommon for the system to overheat and cause a power steering fluid overflow out of the reservoir. If unchecked this can cause power steering rack or pump damage.

This CSF power steering cooler differs in design over the OE cooler which is a low efficiency mechanically bonded core design to CAB-brazed high efficiency plate-type design. It's made with CSF’s AC condenser technology using a 1-row super-high pressure 18mm wide 4-channel microtube. It also offers a dual pass 6-row design with an 83% increase in surface area compared to the OE unit. IT has been lab tested at ~40% more efficient than OEM cooler

In addition to offering tremendous performance gains over the stock cooler, this CSF power steering cooler is a direct fit solution requiring no modifications to install. Accepts all attaching OE components including oil-line connections, mounting brackets, and AC condenser. World’s 1st true “plug-and-play” power steering cooler for the E9X M3 platform.

Note: Increase in unit size (total 83 mm or 3.27 inches in height) designed towards the top of the cooler from OE position. This allows the cooler to work with any aftermarket supercharger heat exchanger or auxiliary coolers that may be placed underneath OE positioned power steering cooler

About CSF:

CSF, The Cooling Experts, have been serving the US aftermarket for almost 4 decades. With over 30 million units sold, CSF is your exclusive source for Radiators, Condensers, Intercoolers, Inverter Coolers, Racing Radiators and Pressure Caps. Whatever the application, trust CSF radiators to keep your vehicle running cool.

When you choose CSF, you are dealing directly with the manufacturer, not a broker or an importer. CSF’s factories are ISO certified, and are OE suppliers to many US, German and Asian manufacturers. When you purchase a CSF product, you can be rest assured that it has been manufactured on the same production lines with the same high quality standards as their OE customers. Every single radiator is subject to rigorous testing procedures such as Hydrostatic Testing, Vacuum decaying and life cycle testing, and is designed to always be a “drop-in fit”.

CSF’s Racing & High Performance division is known across the world for it’s premium quality, value, durability, and most importantly, it’s industry leading levels of high performance. CSF prides itself on its high level of commitment to R&D, producing many innovations in heat transfer technology. CSF is the premiere choice of champions in many different segments of motorsports around the globe.

CSF BMW E90/E92/E93 M3 High Performance Power Steering Cooler

$439.95

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    Seattle, Washington
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    The product I bought exceeded my expectations. Top-notch quality, thoughtful design, and it came beautifully packaged.


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    San Francisco, California
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    Checkout was quick and straightforward. My order confirmation came through instantly, and everything arrived exactly as expected.


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    Portland, Oregon
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    Really pleased with the quality for the price. The product felt premium, worked perfectly out of the box, and was well packaged.


    Jamie Carter
    Manchester, England
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Can I return a part after it has been installed?

Generally, installed or used performance parts cannot be returned. We strongly recommend verifying vehicle fitment and inspecting the product before installation.

Can I cancel my order after it has been placed?

We begin processing orders as quickly as possible. If you need to cancel, contact us immediately. Once an order has entered fulfillment, been submitted to a supplier, or shipped, cancellation may no longer be possible.

Will this part fit my vehicle?

Fitment varies by year, make, model, trim, engine, and drivetrain. Use our vehicle fitment information to confirm compatibility. If you're unsure, contact us with your VIN and we'll help verify fitment before you order.

How do I know if this is the right upgrade for my build?

Not every upgrade makes sense for every vehicle or build. Tell us your vehicle, current modifications, and performance goals, and we'll help determine whether this product is a good fit.

Are the products you sell authentic?

Yes. We source products through established manufacturers and authorized distribution channels. We do not sell counterfeit or imitation performance parts.

Is professional installation recommended?

For most performance components, yes. Proper installation is critical for fitment, reliability, and performance. Some products may also require specialized tools, programming, tuning, or additional supporting modifications.