Will the CSF oil cooler B58 BMW fit my M340i or M440i?

Only if your car has the B58D motor and the S33TA Motorsport Engineering Package. B58N-equipped cars are not compatible. Check your VIN before ordering to confirm which motor you have.

How much larger is the CSF oil cooler than the OEM unit?

The CSF core is 32mm thick versus 28mm on the OEM unit, a 14% increase in core volume. The microtube design also improves oil flow and surface area contact compared to the factory tube and fin layout.

Does the CSF oil cooler B58 BMW require any modifications to install?

No modifications to the chassis or factory ducting are required. You will need to drill out two OEM rivet nuts to remove the bash guards; CSF supplies replacement M6 rivet nuts and bolts for reinstallation.

Why does the B58 need an upgraded oil cooler?

Under hard use and high-horsepower builds, B58 oil temperatures can exceed safe limits and trigger limp mode. The CSF oil cooler keeps oil temps in range during track sessions, road racing, and high-output street driving.

Does the CSF oil cooler come with a rock guard?

Yes. A metal rock guard is included with every CSF oil cooler B58 BMW kit to protect the core from road and track debris.

Description

Additional Info

Shipping policy

BP PRICING DIFFERENCE

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Description

CSF High Performance Engine Oil Cooler for G2X BMW M240i / M340i and M440i

The CSF oil cooler B58 BMW upgrade keeps the G2X M340i, M440i, and G42 M240i running at safe oil temperatures under hard use, where the factory cooler runs out of capacity. Built on CSF’s AC condenser technology, the core uses a single-row super-high pressure 32mm 10-channel microtube design that delivers better oil flow and more surface area contact than the traditional tube and fin layout of the OEM unit. At 32mm thick the core is 14% larger than the factory 28mm unit, and a metal rock guard is included to protect the core from debris on road and track. All factory mounting locations, ducting, and shrouds carry over with no modifications required. Drop-in fit. Two-year limited warranty.

Features

Super-high pressure 32mm 10-channel microtube core based on CSF AC condenser technology
32mm core thickness, 14% larger than the OEM 28mm unit
8mm tall multi-louvered fins for maximum surface area
OEM-style inlet and outlet connections
Utilizes OEM top and bottom rubber seals for optimal airflow
Metal rock guard included to protect the core from road and track debris
Drop-in fit; factory ducting and shrouds reused with no modification
Two-year limited warranty
Suitable for road racing, drag racing, and high-performance street use

CSF Oil Cooler B58 BMW Specifications

Core Technology: Super-high pressure 32mm 10-channel microtube, AC condenser design
Core Thickness: 32mm (14% larger than OEM 28mm)
Fin Height: 8mm multi-louvered
Connections: OEM-style inlet and outlet
Rock Guard: Included
Warranty: Two-year limited
Fitment: Drop-in, no modification required

Applications

BMW M240i: G42 | 2023 to 2026 | Turbocharged 3.0L L6 B58D
BMW M240i xDrive: G42 | 2022 to 2026 | Turbocharged 3.0L L6 B58D
BMW M340i: G20 | 2020 to 2024 | Turbocharged 3.0L L6 B58D
BMW M340i xDrive: G20 | 2020 to 2024 | Turbocharged 3.0L L6 B58D
BMW M440i: G22 / G23 | 2021 to 2024 | Turbocharged 3.0L L6 B58D
BMW M440i xDrive: G22 / G23 | 2021 to 2024 | Turbocharged 3.0L L6 B58D
BMW M440i Gran Coupe: G26 | 2022 to 2024 | Turbocharged 3.0L L6 B58D
BMW M440i xDrive Gran Coupe: G26 | 2022 to 2024 | Turbocharged 3.0L L6 B58D

Notes

B58D motor required. This CSF oil cooler fits G2X models equipped with the B58D motor only. If your M340i or M440i has the B58N motor, this cooler does not apply. Check your VIN to confirm you have the S33TA Motorsport Engineering Package and B58D motor before ordering.
Minor installation step required. You will need to drill out two rivet nuts to remove the OEM oil cooler bash guards. CSF supplies replacement threaded M6 rivet nuts and M6 bolts to re-secure the bash guards after installation.

Frequently Asked Questions

Will the CSF oil cooler B58 BMW fit my M340i or M440i? Only if your car has the B58D motor and the S33TA Motorsport Engineering Package. B58N-equipped cars are not compatible. Check your VIN before ordering to confirm which motor you have.
How much larger is the CSF oil cooler than the OEM unit? The CSF core is 32mm thick versus 28mm on the OEM unit, a 14% increase in core volume. The microtube design also improves oil flow and surface area contact compared to the factory tube and fin layout.
Does the CSF oil cooler B58 BMW require any modifications to install? No modifications to the chassis or factory ducting are required. You will need to drill out two OEM rivet nuts to remove the bash guards; CSF supplies replacement M6 rivet nuts and bolts for reinstallation.
Why does the B58 need an upgraded oil cooler? Under hard use and high-horsepower builds, B58 oil temperatures can exceed safe limits and trigger limp mode. The CSF oil cooler keeps oil temps in range during track sessions, road racing, and high-output street driving.
Does the CSF oil cooler come with a rock guard? Yes. A metal rock guard is included with every CSF oil cooler B58 BMW kit to protect the core from road and track debris.

About CSF

CSF is an industry-leading cooling manufacturer with a long track record in BMW performance applications. Their B58 cooling suite is one of the best-selling in the segment, trusted by motorsport teams and enthusiasts running everything from street builds to four-figure horsepower track cars. Every CSF product is engineered for real-world performance and backed by a two-year limited warranty.

Additional Information

The Bulletproof Automotive website contains many thousands of products purchased in multiple different currencies. All of the prices are entered manually and accurately at the time of entry. Due to the consistently fluctuating international exchange rates, at times prices may not be able to be honored at their original intended rate. We apologize for any inconvenience this may cause, unfortunately our website is unable to compensate dynamically for what can at times be volatile changes in the cost of items due to currency values fluctuating, changes in prices from suppliers, changes in shipping and import duties, and other factors. Rest assured that any order you place on line will be at zero risk to you in this area. If in the event your order cannot be fulfilled at the original intended website price we will offer you a 100% refund, no questions asked. We will continue to do our best to maintain updated prices and we will always continue to offer our price match guarantees as well to ensure our prices are always the best for you. In short, prices may change without notice. It is always advised to give us a call prior to placing your order online to confirm availability and to confirm current pricing.

Shipping Policy

Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.

BP Pricing Difference

We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well. For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at sales@bulletproofautomotive.com with any inquiries.

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CSF High Performance Engine Oil Cooler for G2X BMW M240i / M340i and M440i [8372]

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CSF High Performance Engine Oil Cooler for G2X BMW M240i / M340i and M440i

Features

CSF Oil Cooler B58 BMW Specifications

Applications

Notes

Frequently Asked Questions

About CSF

Reviews