Motorad MO326 Engine Oil Filter Cap

Engine Oil Filter Cap for BMW Applications

The MotoRad MO326 engine oil filter cap is a specific-fit replacement for a wide range of BMW models from 2006-2021. Built from black plastic with a rubber seal, it is made to restore a secure oil filter housing closure on BMW engines that use this cap style.

Use the MO326 when you need a direct replacement oil filter cap for BMW 128i, 328i, 535i, X5, X6, M3, M4, and other listed applications. The round screw-on design includes indicator markings and is sized for the specified thread and housing dimensions.

Key Features

• Specific-fit engine oil filter cap for select BMW vehicles
• Black plastic construction for standard replacement use
• Round, screw-on attachment type
• Rubber gasket or seal included
• Indicator markings included for service reference
• Thread diameter: 3.46 in. (87.88 mm)
• Head diameter: 3.40 in. (86.36 mm)
• Cap depth: 1.07 in. (27.18 mm)

Detailed Description

MotoRad MO326 is engineered as an OE-style replacement oil filter cap for BMW engines that require this specific housing cap design. It is manufactured from OEM-approved materials and built to meet or exceed OEM quality standards in ISO TS16949 facilities. The cap’s black plastic body, round profile, and included rubber seal are intended to provide a proper closure for the oil filter housing while maintaining the correct fit and service markings.

This part cross-references Dorman OE Solutions 917-056 for the same application. The MO326 is also referenced by Genuine 11427525334 for select BMW oil filter cap applications.

What It Helps Fix

• Cracked or damaged oil filter cap housing
• Oil seepage at the filter cap seal area
• Improper sealing after routine oil service
• Worn indicator markings on the existing cap
• Fitment issues on BMW oil filter housing service parts

Installation Notes and Tips

Verify the thread diameter, head diameter, and cap depth against the original cap before installation. Confirm the vehicle application by year, make, and model, since this part is listed for specific BMW fitments only. Inspect the sealing surface and housing threads during service, and replace the cap if the original is cracked, warped, or no longer seals correctly.

Quality Assurance

MotoRad manufactures this filter cap to meet or exceed OEM quality standards using approved materials for durability in demanding temperature and operating conditions. Production takes place in ISO TS16949 manufacturing facilities, supporting consistent fit and finish for BMW oil filter housing service.