SKU: 74257067586

Oil Cooler Kit BMW E46 M3

Sale price$980.97 Regular price$1089.97
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Description

Oil Cooler Kit BMW E46 M3The S54 is an incredible feat of engineering. Smooth power delivery, individual throttle bodies, and an 8,000 rpm redline make for an unforgettable driving experience. As with any BMW, maintaining optimal oil temperatures is key to extending the life of your vehicle and ensuring that you're getting an unparalleled driving experience. As many of these vehicles see frequent track time, the team at Mishimoto decided to develop a performance oil cooler

The S54 is an incredible feat of engineering. Smooth power delivery, individual throttle bodies, and an 8,000 rpm redline make for an unforgettable driving experience. As with any BMW, maintaining optimal oil temperatures is key to extending the life of your vehicle and ensuring that you're getting an unparalleled driving experience. As many of these vehicles see frequent track time, the team at Mishimoto decided to develop a performance oil cooler kit that would not only provide improved durability, but also deliver the power needed for track driving. The result: an extremely efficient core that provides a proven 30°F (16.7°C) drop in oil temperature. With an increase in core thickness of 110%, this oil cooler kit increases your oil capacity by 0.44 qt. The oil cooler end tanks, cast from a single piece of aluminum and TIG-welded to the core, have been designed for maximum reliability, giving you the confidence you need to push your E46 M3 to the limits.

This oil cooler kit is designed as a complete bolt-in fit, requiring no modification to work with the stock radiator or the Mishimoto BMW E46 Performance Aluminum Radiator. To ensure a complete direct-fit, Mishimoto engineers have designed a fully CNC-machined 6061 aluminum and 303 stainless steel BMW E46 Oil Line Fitting Kit, which makes the removal of the stock hard lines and installation of stainless steel braided lines a simple task.

This kit includes preassembled stainless steel lines with -10AN fittings to help direct the oil to and from the cooler, as well as a black Mishimoto Oil Line Stay to keep your lines from rubbing. As with all our products, the Mishimoto E46 M3 Oil Cooler Kit includes the Mishimoto Lifetime Warranty

  • Direct fit for the BMW E46 M3
  • Natural CNC-machined finish
  • Mishimoto Lifetime Warranty
  • Reduces oil temperatures by 30°F (16.7°C)
  • 10 psi reduction in pressure loss
  • One-piece billet end tanks for maximum reliability
  • Increases oil capacity by 0.44 qt
  • Premade stainless steel braided oil lines with durable -10AN fittings
  • Includes 100% CNC-machined 6061 aluminum -10AN BMW E46 Oil Line Fitting Kit
  • Mishimoto Oil Line Stay included to prevent lines from rubbing
  • Fits with stock and Mishimoto radiators
  • Material - 6061 Aluminum
  • Core Height - 3.02"
  • Cooler Contruction - Bar-and-Plate
  • Core Thickness - 2.5"
  • Core Length - 23.62"
  • Fitting Size - -10AN
  • Tank Wall Thickness.16" (4mm)
  • Engine Codes - S54
  • Chassis Codes - E46
  • Install Torque Specs - 10 ft/lbs for Oil Line Fitting Kit bolt.
  • Caution - It is the installer's responsibility to check all line fittings and other connections to assure they are fully tightened before operating the vehicle. Mishimoto recommends that you check all connections at regular intervals, especially during the first few miles after installation.
  • Increase In Oil Capacity - 0.44
  • Temp Difference - 30°F
  • Overall Height - 26.1"
  • Overall Length - 3.4"
  • Overall Width - 4.3"
  • Core Size - 23.62" x 3.02"
  • Inlet - -10AN
  • Outlet - -10AN
  • Also Fits - 2001-2006 BMW E46 M3
  • (1) Mishimoto Oil Cooler w/ -10AN Fittings
  • (1) Mishimoto Oil Line Fitting Kit
  • (1) 1' 8" Stainless Steel Braided Hose with 45° and 45° -10AN Fittings
  • (1) 3' 5" Stainless Steel Braided Hose with 45° and 90° -10AN Fittings
  • (1) Mishimoto Oil Line Stay, Black
  • (2) M6 x 1.0 x 16mm Button-Head Bolts (for installation with Mishimoto radiator)
  • Mishimoto Lifetime Warranty
  • 2001-2006 BMW E46 M3
        Shipping Notes
        • Free Standard Shipping on $100+ Orders to the USA.
        • Except Preorder products are shipped in 48 hours.
        • Delivery to the USA:
        1. Standard Shipping : 3-10 business days
        • If time is of the essence, please consider selecting expedited delivery for faster service.
        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: 74257067586

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        Carole T.
        Carnegie, US
        ★★★★★ 5
        Reset Software for Ecotank ET-4800
        Excellent. Worked like a charm!
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        Reviewed in the United States on May 6, 2026
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        Kay
        Chelsea, US
        ★★★★★ 5
        Great Product - highly recommend
        Worked great fixed problem….wonderful instructions easy to follow
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        Reviewed in the United States on April 28, 2026
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        Amazon Customer
        Port Orchard, US
        ★★★★★ 5
        Might Need to Turn Off Security Measures in Order to Download
        I'm a 1st grade teacher and use my ET-2800 religiously. We own 4 of them, between home, my husband's and my classroom, and one for sublimation. I've printed over 15,000 copies on my school printer in the last few years and had no idea about the ink pad replacement until the error message popped up and wouldn't work anymore. I originally purchased a different set and couldn't get it to work. I was in panic mode so I ordered this set, which also originally didn't work. After really paying attention to the alerts that were popping up, I finally had to Google how to turn off my McAfee and Windows Security programs. They were blocking it from running. Once I did that, it was able to install and it is back up and running again. It did make me very nervous to turn them off but as soon as I got it installed, I turned them right back on and ran scans. So far I haven't had any issues in the last few days. The installation is extremely easy, it came with gloves, a screw driver, etc. Mine wasn't messy, so I didn't need the gloves or anything. It's also a 3-pack, so I left myself reminders for next time on how turn off the security. If you are having installation problems, turn off all of your malware security and that will probably help. Just make sure you turn it back on and run scans, the whole process with all of these websites seems shady and scary at first, but this one appears to be legit. I did read that Windows 10 and 11 tend to block sites that are deemed safe.
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        Reviewed in the United States on December 13, 2025
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        JamesJordan
        Phoenix, US
        ★★★★★ 5
        works great for great price
        they are getting a great deal for three
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        Reviewed in the United States on June 1, 2026
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        Mary S.
        Boise, US
        ★★★★★ 5
        Recommend without hesitation
        I don't typically write reviews but wanted to let people searching for a solution to this Epson inkpad problem that they should not hesitate to order this product. I got it yesterday and had my printer back up and printing in 10 minutes--Epson wanted me to buy a new printer or hire a certified repairman! btw, I did not see what others referred to as a sketchy website for downloading the software and I did not need to disable my antivirus software to complete this task.
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        Reviewed in the United States on April 16, 2026

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