SKU: 22030138606

CSF All-Aluminium Dual-Pass Race-Spec Engine Oil Cooler - E46 M3

Sale price$580.05 Regular price$644.50
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Ships within 48 hours · Estimated delivery Aug 31 - Sep 5

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Description

CSF All-Aluminium Dual-Pass Race-Spec Engine Oil Cooler - E46 M3The Racing & High Performance Division of CSF Inc. strives to build and engineer the most advanced, efficient, and reliable cooling systems in the world. CSF manufacturers a wide variety of sophisticated cooling systems with more than 250 different applications, ranging from high performance all aluminum direct fit radiators, intercoolers, and oil coolers, to complete custom manufacturing for racecars, power sports, off road, marine, and industrial

The Racing & High Performance Division of CSF Inc. strives to build and engineer the most advanced, efficient, and reliable cooling systems in the world. CSF manufacturers a wide variety of sophisticated cooling systems with more than 250 different applications, ranging from high performance all-aluminum direct-fit radiators, intercoolers, and oil coolers, to complete custom manufacturing for racecars, power sports, off-road, marine, and industrial use. All CSF cooling systems are designed and engineered to maintain optimal engine temperatures, even under the most extreme driving conditions.

With over 50 years of experience and over 40 million cooling systems sold globally, CSF has earned the industry reputation of being “THE COOLING EXPERTS”.

  • Over 50 Years in Business
  • ISO 9001 Certified – True Manufacturer
  • Over 150,000 Radiators and Condensers in Stock over North America
  • Over 650,000 Units Sold Annually, with Manufacturing and Warehousing Capacity for 1 Million Units

CSF prides itself on using the most advanced technologies, machines, and experienced personnel to design, develop, and manufacture the world’s best cooling systems. With three privately owned manufacturing facilities, and a global cooling network formed over the past 75 years, CSF houses the industry’s best machines and brightest minds. Our engineering staff designs many of the machines in-house, giving CSF the innovative edge when introducing new technologies to the industry.

PRODUCT INFORMATION

THE ULTIMATE COOLING SOLUTION FOR THE E46 M3


The CSF Race-Spec Engine Oil Cooler for the E46 M3 was designed, developed, and track proven in collaboration with BMW M3 tuning specialist and parts manufacturer, Rogue Engineering. Manufactured utilizing the latest in technology, the CSF oil cooler contains densely-packed cooling tubes to provide the greatest surface area for heat reduction in your high-revving S54 engine. 

The CSF oil cooler is also compatible with all surrounding modifications in which the factory cooler is applicable. Whether you have a supercharger or you are simply looking to add reliability with vastly improved oil cooling to your factory-spec M3, this oil cooler will help keep your oil temperatures in check, whether in demanding, on-track conditions or sitting in traffic.

Direct replacement for BMW part number 17212228942.

FEATURES

  • Replaces the OEM unit's single-pass design and plastic shroud with a unique top/bottom dual-pass design for maximum surface area and flow.
  • “Drop-in fit” requiring no modifications to install – accepts factory oil-line connections.
  • Fully TIG-welded cast-endtank design vs. OEM mechanically jointed and tack-welded design for superior reliability & durability.
  • Fits precisely with the contour of the OEM bumper – no issues with aftermarket splitter attachments.
  • Turbulated heavy/duty bar/plate design for the most reliable & durable oil cooler available for the platform.
  • 8 rows of maximum cooling with a high density multi-louvered fin pitch design.
  • Designed to work with the OEM radiator brackets or CSF’s All-Aluminum Triple-Pass Radiator (CSF7058).
  • Motorsport silver finish.


Models
  • 3 Series / E46 (1998-2006) / M3
  • 3 Series / E46 (1998-2006) / M3 CSL
          Shipping Notes
          • Free Standard Shipping on $100+ Orders to the USA.
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          • Delivery to the USA:
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          Exchange/Return Notes
          • We offer a 30-day return/exchange service after receiving.
          • Final sale items are not eligible for returns or exchanges.
          • To process your return/exchange, please contact us at [email protected]
          • Please click here for more details>>> Return & Exchange Policy
          SKU: 22030138606

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          Keith
          Cuba, US
          ★★★★★ 5
          Comfortable
          Size: One Size, Color: Green
          Comfortable socks.
          WAS THIS REVIEW HELPFUL?YesReportShare
          Reviewed in the United States on January 4, 2026
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          Jackie C.
          Phoenix, US
          ★★★★★ 2
          small and tight
          Size: One Size, Color: Green
          didn’t care for them
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          Reviewed in the United States on December 17, 2025
          M
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          Mitch tsukinari
          Pawtucket, US
          ★★★★★ 3
          Disappointed
          Size: One Size, Color: Black
          These socks seem thinner than in the past. Quality not as good.
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          Reviewed in the United States on January 19, 2026
          N
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          no body!
          Boise, US
          ★★★★★ 5
          Perfect fit
          Size: Large, Color: (100) White / White / Black
          Durable and comfortable. Size works well. Very soft with nice thickness for training. Fairly long lasting
          WAS THIS REVIEW HELPFUL?YesReportShare
          Reviewed in the United States on February 12, 2026
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          Quick Reviews
          Belleville, US
          ★★★★★ 5
          Post-COVID Sock Hunt: Finally a Win
          Size: Medium, Color: (001) Black / Black / White
          Ever since COVID, I haven’t been able to find a pair of socks that hold up for more than a few months. Brands like UA, Adidas, and others seem to have cut corners—likely in response to inflation—by downgrading materials and labor rather than raising prices. The result? Socks that wear thin, rip easily, or lose shape fast. These, however, have been a pleasant surprise. I’ve been wearing them for a few weeks and so far, they’re holding strong. You can tell some cost-saving measures were still made—certain areas feel slightly thinner—but overall, the construction is solid. A key win: they stay on. These are ankle socks (not “no-shows”), and they hug the ankle securely. That’s a huge plus in a world where most post-COVID no-shows slide off halfway through the day. We may never get back to the pre-COVID quality standards without paying a premium, but for now, these are a reliable choice. Ratings: • No slipping: 10/10 • Price: 7/10 • Durability (so far): No pilling or loose threads — promising start.
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          Reviewed in the United States on March 24, 2025

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