Genuine BMW E30 Convertible Rear Left Window Shaft Seal – Part # 51361933751

If you're restoring a classic E30 convertible or just trying to stop a wind leak, this is the exact seal you need.

It's a genuine BMW part, the window shaft seal for the rear left side (links).

The part number is 51361933751.

This is the exterior seal that goes on the window mechanism itself.

It's a new old stock or new part—just a solid, factory piece to keep your convertible top working right and keeping the elements out.

It's in the product group for seals/dichtungen.

If your window is rattling or letting in air, this might be the missing piece.