CSF high-performance engine oil cooler for the BMW M5, M6, M8 and M850i (F1X and F9X chassis, S63 V8). The factory all-metal cooler has several weak points; CSF reinforces them with a rugged bar-and-plate core, cast end tanks and 100% TIG-welded construction. Developed alongside CarBahn Autoworks to handle the heat of their S63 stroker kit, it installs drop-in with CNC-machined brackets and OEM-style inlet/outlet connections (trimming the OE ducting and lower radiator cradle is recommended for best fit). Every unit is individually leak and pressure tested.
Specifications
| Type | High-performance engine oil cooler |
| Core | Bar-and-plate with cast end tanks, 100% TIG-welded |
| Connections | OEM-style inlet/outlet |
| Mounting | CNC-machined brackets (drop-in fit) |
| Testing | Individually leak and pressure tested |
| Finish | Satin black |
| Part Number | 8317 |
| Warranty | 2-year limited warranty |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2013-2016,2018-2023,2025-2026 | BMW | M5 | Base |
| 2019-2021 | BMW | M5 | Competition |
| 2022 | BMW | M5 | CS |
| 2020 | BMW | M5 | Edition 35 Years |
| 2025-2026 | BMW | M5 Touring | Base |
| 2012-2018 | BMW | M6 | Base |
| 2014-2019 | BMW | M6 Gran Coupe | Base |
| 2020 | BMW | M8 | Base |
| 2020,2022-2025 | BMW | M8 | Competition |
| 2020-2021 | BMW | M8 Gran Coupe | Base |
| 2020-2025 | BMW | M8 Gran Coupe | Competition |
| 2019-2025 | BMW | M850i xDrive | Base |
| 2020-2025 | BMW | M850i xDrive Gran Coupe | Base |
Shipping
- Orders placed before 3 PM EST typically ship the same business day. Larger items ship within 1 to 3 business days.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Special order items follow a lead time we confirm with you individually before the order is committed.
- Backordered items ship as soon as stock lands. Lead times are manufacturer estimates and can change. Contact us for current ETAs.
- Need to cancel? Email us right away. Cancellations are not guaranteed once an order is in process. In-stock orders cancel free before they ship; a 6% fee applies only to confirmed backorders and special orders.
- International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.
Returns
- 30 days from delivery to request and ship back a return on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee on the item price before tax and shipping. Shipping is not refunded in either direction. All waived if the item is defective or we made the error.
- Fitment guaranteed: select your vehicle above, or confirm fitment with us in writing before you order. If the part shows as a fit and it is wrong, the return is on us, even after installation. Otherwise, installed or used parts cannot be returned.
- Final sale: special orders, coilovers, electronics, engine internals, turbochargers, superchargers and turbo kits, unless defective or we sent the wrong item.
- Product images may be representative. The SKU and specifications in the listing are what ships.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Returns & Refunds · Warranty
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