Description
The Mishimoto MMOC-E46-01 Performance Oil Cooler Kit was engineered specifically for the BMW E46 M3’s S54 engine, a powerplant known for smooth power delivery, individual throttle bodies, and an 8,000 rpm redline. Because the S54 rewards drivers who push it hard — including frequent track sessions — Mishimoto’s engineers built this cooler kit to deliver a proven 30-degree Fahrenheit (16.7-degree Celsius) drop in oil temperature, keeping the engine in its optimal operating window when it matters most.
This Mishimoto oil cooler kit increases core thickness by 110-percent over stock and adds 0.44 quart of additional oil capacity, giving the S54 more thermal headroom during sustained high-rpm driving. The one-piece billet end tanks are designed for maximum reliability under the vibration and heat cycling that comes with spirited street driving or track days, while a 10 psi reduction in pressure loss helps oil move through the system more efficiently. As a direct-fit BMW E46 M3 oil cooler kit, it’s built to install cleanly alongside your existing setup and works with both stock and Mishimoto radiators.
Vehicle Applications
This oil cooler kit is a direct fit for the 2001–2006 BMW M3 (E46 chassis) equipped with the S54 engine. It was developed and validated specifically for this generation of M3, so no other BMW chassis, engine code, or model year is supported by this kit.
Features
- Direct fit for the BMW E46 M3
- 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 a 100-percent 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
- Natural CNC-machined finish
- Backed by the Mishimoto Lifetime Warranty
Specifications
- Color: Silver
- Finish: Anodized
- Core Type: Bar-and-Plate
- Grade Type: Performance
- Core Color: Silver
- Core Height: 3.02 in
- Core Thickness: 2.5 in
- Core Width: 23.62 in
- Overall Width: 4.3 in
- Overall Length: 3.4 in
- Inlet Fitting Type: AN Flare, Male, -10AN
- Outlet Fitting Type: AN Flare, Male, -10AN
- Inlet Outside Diameter: 0.625 in
- Outlet Outside Diameter: 0.625 in
- Kit Includes: Mishimoto Oil Cooler with -10AN Fittings, Mishimoto Oil Line Fitting Kit, 1-ft 8-in stainless steel braided hose with 45° and 45° -10AN fittings, 3-ft 5-in stainless steel braided hose with 45° and 90° -10AN fittings, Mishimoto Oil Line Stay (Black), M6 x 1.0 x 16mm button-head bolts, and Mishimoto Lifetime Warranty
- Installation Note: Torque the Oil Line Fitting Kit bolt to 10 lb-ft
Frequently Asked Questions
What vehicles does the Mishimoto MMOC-E46-01 oil cooler kit fit?
This kit is a direct fit for the 2001–2006 BMW M3 with the E46 chassis and S54 engine.
How much does this Mishimoto oil cooler kit lower oil temperatures?
Mishimoto’s engineers developed a core that provides a proven 30-degree Fahrenheit (16.7-degree Celsius) drop in oil temperature.
Does this kit increase oil capacity?
Yes. With a 110-percent increase in core thickness, this oil cooler kit increases oil capacity by 0.44 qt.
What fittings does the Mishimoto E46 M3 oil cooler use?
The kit uses -10AN male AN flare fittings on both the inlet and outlet, with inlet and outlet outside diameters of 0.625 in.
What is included in the kit?
The kit includes the Mishimoto Oil Cooler with -10AN fittings, a Mishimoto Oil Line Fitting Kit, a 1-ft 8-in stainless steel braided hose with 45° and 45° -10AN fittings, a 3-ft 5-in stainless steel braided hose with 45° and 90° -10AN fittings, a Mishimoto Oil Line Stay in black, M6 x 1.0 x 16mm button-head bolts, and the Mishimoto Lifetime Warranty.
Will this cooler work with my stock radiator?
Yes, this oil cooler kit fits with both stock and Mishimoto radiators.
âš WARNING (California Proposition 65): This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
