The new CSF transmission oil cooler for the ZF8 automatic in the G8X M2/M3/M4 is engineered for high-performance and track-use applications. Featuring a unique dual pass design, the CSF Transmission Oil Cooler nearly triples the volume of the OEM unit and increases fluid capacity by ~94%.
The core features advanced micro-tube condenser technology derived from CSF’s A/C cooling systems. Its 9-Channel Microtube design optimizes oil flow and offers maximum surface area contact. Installation is plug and play with the drop-in fit design. The CSF cooler retains OEM quick-connects and includes a replaceable rock guard for additional protection from road or track debris. This packaging helps preserve shifting performance, maintain optimal transmission oil temperatures, and extend transmission life in modified or race-prepped G8X M Cars.
Features
KEY FEATURES
- Dual-Core Design
- 194% Increase in Core & Tank Volume
- 94% Increase in Fluid Capacity Compared to OEM (CSF 1700ml vs. OEM 875ml)
- Two 22mm Stacked Cores = 44mm Core Thickness vs. OEM 28mm Core Thickness
- Rear Cooler: 16 Rows vs. OEM 14 Rows (191mm Overall Height vs. OEM 155mm)
- Front Cooler: Additional 16 Rows
- 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
- Utilizes OEM Top/Bottom Rubber Seals for Optimal Airflow
- OEM Style "Quick Connect" Inlet/Outlet Connections
- Drop-in Fit Requires No Modifications to Install
- 2-Year Limited Warranty
- Ideal for Road Racing, Drag Racing, and Vehicles With Increased Performance and/or Transmission Tuning
PRODUCT DETAILS
CSF worked closely with development partner, sponsored race team, and premier local CSF Dealer Studio RSR as well as Time Attack Teams such as Art of Attack and Velocity Performance on the ZF8 Automatic Transmission Oil Cooler. Their insight, experience, and testing feedback provided invaluable insight into designing the best cooler possible.
DESIGN, DEVELOPMENT, AND TESTING
Specifically ones that see heavy track/competition use. Transmission oil temperatures have a major impact on the shifting performance of your automatic transmission. If the fluid passes optimal temperatures you will start to see some delays in shifting. Sluggish shifting can be quite frustrating, but the real concern is the damage that can be done to the transmission when temperatures get too high. There are often cases where drivers don’t notice the change in shifting performance due to the gradual onset, but the damage is still being done slowly on a very expensive and important component.
DUAL-CORE ADVANTAGE
By changing from the OEM single core design to a dual core, CSF was able to increase the overall volume by 194%. This design offers a drastic improvement in heat dissipation and increases the fluid capacity of the coolers by ~94%. Utilizing CSF’s AC Condenser Technology, a 1-Row Super-High Pressure 22mm 9-Channel Microtube design optimizes oil flow and offers maximum surface area contact. These features combine to offer the best possible heat dissipation from the system.
ROCK GUARD
CSF knows the kind of punishment the front of a car can take on or off the track. The wrong bit of debris flying through the front grille can quickly punch a hole in a cooler. Because the Transmission cooler sits at the very front of the center cooling stack, it is quite vulnerable to damage. In addition, "open face" race style grilles have become quite popular on the G8X. These grilles can add to the risk of debris passing through.
The factory grille is the only form of protection for the OEM transmission cooler. However, this still isn’t the level of protection many race teams and enthusiasts are comfortable with. To address this concern, CSF has incorporated a replaceable rock guard to keep your cooler safe and your G8X running strong in the event of debris making it through the front grille.
OEM VS CSF
The CSF Transmission Cooler features a unique dual pass design. While perfectly functional, this gives some extra height to work with if you can eliminate the feed pipe.
BMW OE 17-11-8-095-284/17-11-5-A49-5B9
CSF #8221
The engineers at CSF came up with this unique design to take advantage of the extra vertical space while adding extra capacity and a dual pass system. This design essentially doubles the cooling capacity while still fitting perfectly in the OEM position with no modifications necessary.
- BMW OE 17-11-8-095-284/17-11-5-A49-5B9
- CSF vs OEM
- CSF #8221
TESTING & FEEDBACK
Studio RSR tested the new Transmission Oil Cooler on their G80 M3 Time Attack car during several events. The team competes in Global Time Attack events year round. In addition, their G80 M3 spends many weekends at the track to test new setups and modifications. Their experience and feedback on the real world performance of CSF products has been key in the development of all the new G8X cooling products.
There was a noticeable reduction in transmission temperatures on track. The combination of the transmission temps being in check and the new rock guard gave us extra peace of mind while on both the track and road.
Studio RSR
They have been very pleased with the performance of both.
Thank you CSF and their team for always coming out with the best cooling products in the market. Not only do CSF mainlies offer CSF to CSF’s customers at Velocity Performance also CSF tested the new Heat-Exchanger and also the Transmission Cooler from CSF on CSF’s G82 AWD M4 Time Attack Car. CSF immediatelies shaved 2 seconds effortlessly on just a practice set of tires!! Can’t wait for the drop on all the other parts.
Thank you for always making the leading products in the automotive industry!
VELOCITY PERFORMANCE
SPECIFICATIONS
| Feature | OEM | CSF |
|---|---|---|
| Core & Tank Dimensions | 553mm (W) x 155mm (H) x 28mm (D) | 555mm (W) x 191mm (H) x 44mm (D) |
| Tubes & Rows | 13 Tubes & 14 Rows | 15 Tubes & 16 Rows |
| Fin Height | 8mm | 8mm |
| Design | Single Core Single Pass w/ Feed Pipe | Dual Core Dual Pass (front to back) |
REPLACES OEM PART NUMBERS
17118095284
WARRANTY
Limited warranty, 2 years, covering CSF High-Performance Cooling Systems under normal use and service (original purchaser).
Vehicle Compatibility
What’s Included
- 1x CSF Oil Cooler
Availability & Shipping
In stock and ships from a US warehouse, typically within 1–3 business days. Standard Shipping applies to every order — rates are calculated at checkout, with tracking provided once your order ships. Some items may require additional processing time depending on the specific product and current demand. Track your order any time at eurospeed.co/pages/track for a live delivery estimate.
Delivery time depends on the product. Most in-stock parts ship within days, while carbon fiber and made-to-order items may require production time before they ship. For the specific timeline on any item, check the Availability & Shipping section on that product’s own page — the guide below covers our general shipping types.
Shipping Overview
Depending on the item, free air freight may be available for select carbon fiber components, with estimated shipping around 1–2 weeks after dispatch. Larger hoods, oversized body components, and certain made-to-order items may require sea freight and longer delivery windows. If timing is important, please contact us at support@eurospeed.co before placing your order.
Shipping Coverage
EuroSpeed ships to customers across the United States and internationally. Shipping is included in the price of eligible products for your convenience and covers the initial cost of delivery to your destination.
Import duties, taxes, clearance fees, or customs charges required by your destination country are not included and remain the recipient’s responsibility.
Order Processing & Fulfillment
Every order is reviewed, processed, and prepared before shipment. Most in-stock products are processed within 1–3 business days, though some orders may take up to 5 business days depending on fulfillment location, product type, order volume, or courier pickup timing.
EuroSpeed stocks select high-demand products at our U.S. facility and international fulfillment centers. Because our catalog includes many vehicle-specific and specialty parts, not every product is held in-house at all times.
Some orders may ship through our trusted fulfillment network, which may include verified manufacturing partners, authorized distributors, regional warehouses, and international fulfillment centers.
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Custom, Made-To-Order & Oversized Items
Custom, made-to-order, and oversized product categories may include carbon fiber steering wheels, hoods, trunk lids, fenders, front lips, splitters, side skirts, diffusers, bumpers, body kits, widebody components, select spoilers, rear wings, and other large carbon fiber components.
Many carbon fiber items are made to order. Some products may already be stocked and ready to dispatch when available, but if inventory is unavailable, your purchase reserves the next available production slot instead of waiting for a separate restock listing.
Production time: Production can take 1–4 weeks depending on product type, selected options, finish, current queue, and quality-control timing.
Shipping time: Shipping can take 2–10 weeks depending on item size, freight method, destination, customs processing, carrier delays, warehouse transfers, and final delivery location. Carbon fiber steering wheels typically ship faster, with shipping usually taking 3–7 business days after dispatch.
By purchasing custom, made-to-order, or oversized items, you acknowledge and accept the extended production, fulfillment, and shipping timelines associated with these products.
Tracking Updates & Delays
All orders receive a tracking number once generated by the courier. Tracking may take 2–3 business days after dispatch to show movement in the courier’s system.
Certain international, oversized, or freight shipments may show limited updates during transfer between fulfillment locations, warehouses, customs, or final-mile carriers. In some cases, tracking is provided or begins updating once the item reaches a regional warehouse, local carrier, or final delivery network.
Shipping timelines are estimates and are not guaranteed. Delays caused by high order volume, weather conditions, customs inspections, carrier disruptions, production queues, warehouse transfers, holidays, or other external factors may occur and are outside of EuroSpeed’s direct control. These delays do not qualify for cancellations or refunds unless the carrier officially marks the package as lost.
Delivery Responsibility
Upon delivery, carefully inspect the item for visible defects or damage before signing for it. If the item is damaged or not as expected, do not accept the package. Once a damaged or defective product is accepted, EuroSpeed cannot cover return shipping costs.
EuroSpeed is not liable for packages marked as delivered by the carrier. If a package is lost, stolen, or missing after being marked as delivered, the customer must file a claim directly with the shipping carrier. Our team will assist with available documentation when needed.
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Customs, Duties & Import Fees
EuroSpeed’s free shipping policy does not include import fees, taxes, duties, clearance charges, or other fees required by your destination country. These charges are the responsibility of the recipient, and EuroSpeed is not responsible for any duties or taxes requested by local customs.
Most shipments clear customs automatically through the shipping provider. However, if additional information is needed to complete the process, our team will assist where possible to help ensure a smooth resolution.
If customs clearance fails and the item is returned or destroyed:
- EuroSpeed reserves the right to deny refund claims.
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Package Protection
For added peace of mind, EuroSpeed offers ShipInsure package protection as an optional service at checkout. When selected, this service provides coverage for lost or damaged packages. EuroSpeed is not responsible for shipping delays, lost packages, or damaged items if purchase protection is not selected during checkout.
- Protects against lost or damaged packages.
- Must be selected at checkout.
- Not all oversized body kit purchases are eligible. Please contact us before ordering if custom insurance arrangements are needed.
To file a claim, please visit our Claims Center.
- Claims must be filed within 14 days of delivery.
- Packages stuck in transit for 14 days are considered lost.
- Damage claims typically require photo evidence.
- A 2-day buffer after delivery may apply before lost or stolen claims can proceed.
- Police reports may be required for orders over $500 or where fraud is suspected.
- “Damaged” means the item is broken and unusable.
Questions?
For questions about your order, shipping timeline, customs clearance, or delivery status, please contact our team at support@eurospeed.co. We’re here to help.
Product Installation & Use Disclaimer
EuroSpeed is not liable for any damages, injuries, fitment issues, installation issues, or vehicle-related problems resulting from the installation, modification, misuse, or use of our products.
Products should be installed carefully and used only as intended. For complex installations, electrical components, performance parts, body components, or products requiring modification, professional installation is recommended to help ensure proper fitment, function, and safety.
Any damage caused by improper installation, misuse, modification, or failure to follow installation requirements is the sole responsibility of the customer. By purchasing, installing, or using this product, you acknowledge and accept all associated risks.