CSF HIGH-PERFORMANCE TRANSMISSION OIL COOLER FOR GXX BMW 330E, M240I, M340I AND Z4 M40I / A9X TOYOTA GR SUPRA [8183]
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CSF High-Performance Transmission Oil Cooler for Gxx BMW 330e, M240i, M340i and Z4 M40i / A9x Toyota GR Supra [8183]
CSF, a global leader in cooling technology, has pioneered numerous advancements in its manufacturing technologies, leveraging its expertise gained from working on the transmission systems of renowned vehicles such as the BMW F8X M3, M4, and M2 Comp. One of CSF’s groundbreaking innovations is the incorporation of an innovative dual-core design, resulting in a remarkable 240% increase in core volume. This design enhancement ensures maximum performance and optimal shifting, even under the most extreme racing conditions, ranging from intense road racing to high-speed drag strip runs. To develop this cutting-edge transmission cooler, CSF collaborated closely with a network of esteemed partners, including top time attack teams and tuners. The valuable insights gained from these collaborations highlighted common issues such as gearbox fatigue and sluggish shifting caused by transmission temperatures rising excessively during prolonged or intense usage. In response to these challenges, CSF proudly offers its industry-leading transmission cooler designed specifically for the A90/91 Supra and BMW G-Series vehicles. This exceptional cooler has already been successfully installed in the world’s fastest A90 Supra, the Titan Motorsports Drag Race Supra, which holds the distinction of being the first and only Supra to achieve an astonishing 8-second quarter-mile run. With CSF’s transmission cooler, drivers can experience enhanced performance, improved gearbox reliability, and optimal shifting, making it an indispensable component for enthusiasts seeking uncompromising performance from their A90/91 Supra or BMW G-Series vehicle.
Dual-Core Advantage
- Two 16mm Stacked Cores: 32mm Core Width (44mm Overall Width) vs. OEM 15mm Core Width
- Rear Cooler: 15 Rows (OEM 12 Rows)
- Front Cooler: Additional 12 Rows
- 240% Increase in Core Volume
- 130% Increase in Fluid Capacity Compared to OEM (CSF 550ml vs. OEM ~240ml)
Features
- 5.4mm Tall Multi-Louvered Fin vs. OEM 7mm
- Made with CSF’s AC Condenser Technology Using a 1-Row Super-High Pressure 16mm 9-Channel Microtube for Optimal Oil Flow and Maximum Surface Area Contact
- 129mm Overall Height vs. OEM 125mm Allows for Maximum Performance Without Increasing Overall Surface Area or Blocking Airflow to Rest of Cooling System
- Utilizes OEM Top/Bottom Rubber Seals for Optimal Airflow
- OEM Style “Quick Connect” Inlet/Outlet Connections
- Drop-in Fit Requires No Modifications to Install
- Can be Installed With CSF’s High-Performance Heat Exchanger (CSF #8154) or with the OEM Cooling System
- 2-Year Limited Warranty
- Ideal for Road Racing, Drag Racing, and Vehicles With Increased Performance and/or Transmission Tuning
Applications
- BMW 330e: G20 (2019+) – 3.0L Turbo I6 B58
- BMW M240i: G42 (2022+) – 3.0L Turbo I6 B58
- BMW M340i: G20, G21 (2019+) – 3.0L Turbo I6 B58
- BMW Z4 M40i: G29 (2019+) – 3.0L Turbo I6 B58
- Toyota GR Supra: A90, A91 (2020+) – 3.0L Turbo I6 B58
Notes
- Also fits the following BMW xDrive models:
- M240i
- M340i
- DOES NOT FIT 2025+
About CSF
Back in 1947, a father and his three sons embarked on a business venture by setting up a small retail shop dealing in automotive parts. The family business blossomed over the years, evolving into an automotive garage specializing in radiator repair, and later, a radiator manufacturing facility. By 1975, the family-owned brand CSF was established, marking a milestone as the first to introduce import applications into the American automotive aftermarket, in line with the influx of Honda, Datsun, and Toyota vehicles. By 2009, the fourth generation of the CSF family joined the business, which had by then become a leading name in the import and domestic radiator and condenser markets, selling over 650,000 units that year despite an economic recession, and totaling over 35 million units to date. CSF’s portfolio expanded to include a diverse range of cooling systems, including commercial trucks, industrial and agricultural applications, marine coolers, intercoolers, pressure caps, and a pioneering Racing & High Performance Division. Today, CSF’s Racing & High Performance Division is renowned for designing and manufacturing advanced, efficient, and reliable cooling systems for a wide array of applications, from high performance all-aluminum direct-fit radiators to custom systems for racecars, power sports, off-road, marine, and industrial use. With over 50 years of experience and more than 40 million cooling systems sold worldwide, CSF has rightfully earned the industry title of “THE COOLING EXPERTS.”
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We want you to feel confident before making your purchase. Here are a few important details to help you better understand this product and how it fits into your space.
- Please review the product dimensions carefully to ensure the right fit for your space
- Color may vary slightly due to lighting and screen settings
- Materials and finishes are selected for both durability and visual appeal
- Some items may require simple assembly upon delivery
- Perfect for both everyday use and long-term comfort
If you have any questions about this product, feel free to reach out to our support team. We're here to help you make the right choice.
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Product Size Guide
Please refer to the general size reference below to better understand how this product may fit into your space. Dimensions may vary slightly depending on the design and materials.
| Category | Small | Medium | Large |
|---|---|---|---|
| Decor & Accessories | Up to 10″ | 10″ – 20″ | 20″+ |
| Tables | Up to 30″ | 30″ – 60″ | 60″+ |
| Seating | 1 Seater | 2–3 Seater | 4+ Seater |
| Storage Units | Compact | Standard | Large Capacity |
| Lighting | Small Fixture | Standard Fixture | Large Fixture |
Note: For exact product dimensions, please refer to the specifications section above. This guide is intended as a general reference only.







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