Original BMW Rear Subframe Mount for BMW X3 G01 and X4 G02 (2018–2024)

Mounted between the rear suspension crossmember and the body, this Original BMW rear subframe mount isolates the rear subframe on the G01 BMW X3 and G02 BMW X4. A subframe mount absorbs vibration and road noise before it reaches the cabin while still holding the crossmember firmly to the chassis. BMW names this part the rear rubber mounting, and it is supplied as a single piece. Production began in March 2017, and the mount is made in Germany.

Every Original BMW part from PMB carries a 24-month parts warranty.

Some suppliers sell this part as a suspension crossmember insulator or a crossmember mount, and all of those names describe the same rubber isolator BMW numbers 33-31-6-868-535. On the X3, BMW's parts data matches it to the 30i with the B46D engine, the xDrive30i with the B48D, and the M40i with the B58 and B58D. On the X4, the G02 chassis uses the same rear mounting. Because the number carries the rear designation, check that you are replacing a rear mount and not a front one before you order.

Technical Details

• Manufacturer: BMW (Original BMW part)
• Part number: 33-31-6-868-535
• BMW part name: rubber mounting, rear
• Also called: suspension crossmember insulator
• Position: rear subframe
• Production start: March 2017
• Made in Germany
• Sold individually
• Warranty: 24 months on parts

Common Questions

What are the signs of a worn rear subframe mount?
Clunking or knocking over bumps or during acceleration and braking, extra vibration or harshness in the cabin, and a loose or wandering feel while steering.

Does this fit the X3 M40i?
Yes. BMW's data covers the G01 M40i with both the B58 and B58D engines.

Is this part a rubber or polyurethane mount?
BMW names it a rubber mounting, so this is the factory rubber design.

Fitment & Compatibility

Use the fitment table below to confirm the exact year, make, model, submodel, and any application notes before ordering. With over 20 years of parts and fitment experience, PMB Performance can match this to your VIN.