Why does the BMW S58 oil filter housing cap need replacing?

The factory BMW S58 oil filter housing cap is made from plastic and is prone to cracking under the thermal cycling of routine oil changes, causing oil leaks. Additionally, the OEM bypass valve housed in the plastic cap must be carefully transferred during installation of other aftermarket options — a process that frequently damages the fragile valve. The MMX billet cap eliminates both issues with an aluminum body that will not crack and an integrated bypass valve that requires no transfer.

What does the integrated bypass valve mean for installation?

The MMX BMW S58 oil filter housing cap has the oil pressure bypass valve built directly into the cap body. This means there is no need to remove and transfer the factory valve from the OEM plastic cap — a step that is a known damage risk on competing aftermarket options. The MMX cap installs as a complete unit with the supplied O-ring; no additional components need to be transferred.

Is this compatible with the MMX Lifetime Oil Filter?

Yes. The MMX BMW S58 oil filter housing cap is specifically designed to be compatible with both the OEM paper oil filter and the MMX Lifetime Oil Filter. For complete S58 oil system protection, fitting both together is the recommended upgrade path.

Will the anodized finish be affected by engine bay heat?

The Midnight Black anodizing is applied directly to the aluminum surface and will withstand normal engine bay temperatures without issue. Prolonged exposure to extreme heat may gradually affect the appearance of the finish — this is an inherent characteristic of anodized aluminum in high-heat locations and does not affect the function or seal integrity of the cap.

Does this fit all S58-powered BMW M variants?

Yes. The MMX oil filter housing cap fits every S58-powered BMW M model including all variants of the G87 M2, G80 M3, G82/G83 M4, F97 X3 M, and F98 X4 M — standard, Competition, xDrive, CS, CSL, and Competition xDrive.

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Description

MMX Billet Oil Filter Housing Cap for BMW M Vehicles with S58 Engine

BMW S58 oil filter housing cap from MMX Performance is a precision-machined 6061 aerospace-grade billet aluminum replacement for the factory plastic oil filter housing cap on all S58-powered M models G87 M2, G80 M3, G82/G83 M4, F97 X3 M, and F98 X4 M. The OEM plastic housing cap is a documented failure point: it cracks under the thermal cycling of routine oil changes, causing oil leaks that range from minor seepage to significant loss, and the fragile factory oil pressure bypass valve must be carefully transferred to any aftermarket replacement, a step that frequently results in damage to the valve during removal. The MMX billet cap eliminates both failure modes in a single upgrade. CNC-machined using 5-axis technology from a solid 6061 billet aluminum and finished in Midnight Black anodizing, it replaces the plastic cap with a unit that will not crack and integrates the oil pressure bypass valve directly into the cap body — no transfer required, no fragile valve to damage during installation. Supplied with a factory-spec O-ring for a leak-free seal; compatible with the OEM paper filter and the MMX Lifetime Oil Filter.

Features

Replaces failure-prone OEM plastic oil filter housing cap with 6061 aerospace-grade billet aluminum
Integrated oil pressure bypass valve — no OE valve transfer required
Eliminates risk of cracking and oil leaks associated with the factory plastic cap
CNC 5-axis machined for precision fit and high-quality finish
Midnight Black anodized finish for corrosion resistance and clean aesthetics
Includes factory-spec O-ring for a precise, leak-free seal
Compatible with OEM oil filters and MMX Lifetime Oil Filter
Ideal for installation during routine oil and filter service

Applications

BMW M2: G87 | 2023-present
BMW M3: G80 | 2021-present
BMW M3 Competition: G80 | 2021-present
BMW M3 Competition xDrive: G80, G81 | 2021-present
BMW M3 CS: G80 | 2023
BMW M4: G82 | 2021-present
BMW M4 Competition: G82 | 2021-present
BMW M4 Competition xDrive: G82, G83 | 2021-present
BMW M4 CS: G82 | 2024-present
BMW M4 CSL: G82 | 2022-2023
BMW X3 M: F97 | 2019-2024
BMW X3 M Competition: F97 | 2019-2024
BMW X4 M: F98 | 2019-present
BMW X4 M Competition: F98 | 2019-present

Notes

Prolonged exposure to excessive heat may affect the anodized finish this is unavoidable with anodized aluminum in high-heat locations and does not affect function
Compatible with OEM oil filters and MMX Lifetime Oil Filter
Sold as a single housing cap with O-ring

Frequently Asked Questions

Why does the BMW S58 oil filter housing cap need replacing? The factory BMW S58 oil filter housing cap is made from plastic and is prone to cracking under the thermal cycling of routine oil changes, causing oil leaks. Additionally, the OEM bypass valve housed in the plastic cap must be carefully transferred during installation of other aftermarket options a process that frequently damages the fragile valve. The MMX billet cap eliminates both issues with an aluminum body that will not crack and an integrated bypass valve that requires no transfer.
What does the integrated bypass valve mean for installation? The MMX BMW S58 oil filter housing cap has the oil pressure bypass valve built directly into the cap body. This means there is no need to remove and transfer the factory valve from the OEM plastic cap a step that is a known damage risk on competing aftermarket options. The MMX cap installs as a complete unit with the supplied O-ring; no additional components need to be transferred.
Is this compatible with the MMX Lifetime Oil Filter? Yes. The MMX BMW S58 oil filter housing cap is specifically designed to be compatible with both the OEM paper oil filter and the MMX Lifetime Oil Filter. For complete S58 oil system protection, fitting both together is the recommended upgrade path.
Will the anodized finish be affected by engine bay heat? The Midnight Black anodizing is applied directly to the aluminum surface and will withstand normal engine bay temperatures without issue. Prolonged exposure to extreme heat may gradually affect the appearance of the finish this is an inherent characteristic of anodized aluminum in high-heat locations and does not affect the function or seal integrity of the cap.
Does this fit all S58-powered BMW M variants? Yes. The MMX oil filter housing cap fits every S58-powered BMW M model including all variants of the G87 M2, G80 M3, G82/G83 M4, F97 X3 M, and F98 X4 M standard, Competition, xDrive, CS, CSL, and Competition xDrive.

About MMX Performance

MMX Performance is a UK-based specialist in performance parts for BMW and MINI vehicles, crafting high-quality upgrades that blend precision engineering, rigorous testing, and motorsport heritage. Driven by enthusiast culture, MMX designs its products in the UK and puts them through track validation to ensure durability, fitment accuracy, and on-road performance. Their catalog spans drivetrain components, spacers, hardware, and chassis enhancements, all tailored to elevate both the driving experience and visual appeal of BMW and MINI models.

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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MMX Billet Oil Filter Housing Cap for BMW M Vehicles (with S58 engine) [MMR17-1601]

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MMX Billet Oil Filter Housing Cap for BMW M Vehicles with S58 Engine

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Frequently Asked Questions

About MMX Performance

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