- Description
- Fitment
- Refund Policy
The MMX Performance BMW Billet Oil Filler Cap replaces the factory plastic oil filler cap with a precision-machined aluminum upgrade designed to improve durability, operation, and engine bay appearance. Designed as a direct replacement for BMW OE part number 11128655331, the MMX cap is compatible with a broad range of BMW applications utilizing the corresponding rounded factory oil filler cap design.
Each MMX oil filler cap begins as a solid billet of 6061 aerospace-grade aluminum before being CNC-machined using advanced 5-axis manufacturing. The finished cap is polished and treated with a deep gloss black anodized finish, providing a clean appearance while improving resistance to corrosion and wear compared to the factory plastic component.
Function was considered throughout the design. An internally sprung locking mechanism provides positive engagement when the cap is secured, while the machined outer profile provides additional grip during installation and removal. The cap can also be installed in either a 0-degree or 90-degree orientation, allowing the MMX logo to be correctly positioned across different engine layouts.
The billet construction also provides a long-term replacement for aging factory oil filler caps that can develop sealing issues and oil seepage over time. Installation requires transferring the original factory oil filler cap seal to the MMX cap, retaining the corresponding OE sealing interface.
With compatibility spanning numerous BMW chassis and engine platforms, the MMX Performance BMW Billet Oil Filler Cap provides a compact engine bay upgrade that combines CNC-machined aluminum construction with direct OE replacement fitment.
Product Details
- MMX Performance billet oil filler cap for BMW
- Direct replacement for BMW OE part number 11128655331
- CNC-machined from solid 6061 aerospace-grade aluminum
- Advanced 5-axis machining for precise fitment
- Deep gloss black anodized finish
- Internally sprung locking mechanism provides positive engagement
- 0-degree or 90-degree installation orientation for proper logo alignment
- Machined outer profile provides improved grip during installation and removal
- Replaces the factory plastic oil filler cap
- Original factory oil filler cap seal is reused
Recommended Products
Returns
Our policy lasts 14 days. If 14 days have gone by since your purchase, unfortunately we can’t offer you a refund or exchange. All items are subject to 15% restocking fee from the manufacturer.
To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.
Additional non-returnable items:
Gift cards
Downloadable software products
To complete your return, we require a receipt or proof of purchase.
Please do not send your purchase back to the manufacturer.
There are certain situations where only partial refunds are granted (if applicable)
You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of shipping to you will be deducted from your refund. If your original order qualified for free shipping, the actual cost of shipping the item to you will still be deducted from your refund.
If you would like to start a return please click here
Refunds (if applicable)
Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.
If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.
You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of shipping to you will be deducted from your refund. If your original order qualified for free shipping, the actual cost of shipping the item to you will still be deducted from your refund.
Late or missing refunds (if applicable)
If you haven’t received a refund yet, first check your bank account again. Then contact your credit card company, it may take some time before your refund is officially posted. Next contact your bank. There is often some processing time before a refund is posted. If you’ve done all of this and you still have not received your refund yet, please contact us at info@amtuning.ca.
Sale items (if applicable)
Only regular priced items may be refunded, unfortunately sale items cannot be refunded.
Labor Fees (if applicable)
AM Tuning Canada is not responsible for, and shall not be liable for, any labor fees, installation charges, removal charges, diagnostic fees, or other service-related costs incurred by the customer or any third party in connection with the installation, removal, modification, servicing, or use of any products purchased from AM Tuning Canada. Unless expressly agreed to in writing by AM Tuning Canada, all such labor and service costs are the sole responsibility of the customer.
Exchanges (if applicable)
To start an exchange, click here
Non-refundable items
The following items are non-refundable and non-returnable once purchased: oils, fuel or oil additives, filters, tuning cables, OBDeleven products, Braum seats, spark plugs, coil packs, and similar consumable, wheel spacers, wheels bolts, license plate brackets, electronic tuning components and any other product subject to discretion of AM Tuning Canada.
Other products from brands such as MHD, Bootmod3, Ecutek, Braum racing, Novitec are also non-refundable and non-returnable.
All sales of these items are final and are subject to the policies and discretion of AM Tuning. By completing a purchase, the customer acknowledges and agrees to these terms.
