(18111723720)-Exhaust Seal Ring (48mm) - 325i (92-95), 328i (96-99), M3 (95-99) (1 available)

BMW part number 18111723720 (which has been superseded by the newer part number 18111723721) is a 48mm exhaust gasket ring. It specifically seals the right-hand (passenger side) exhaust flange connection located between the catalytic converter downpipe and the rear muffler section.

This gasket ring is engineered exclusively for 6-cylinder models of the BMW 3 Series (E36 Generation) spanning from 1992 to 1999: 

• 325i / 325is / 325ic (M50 2.5L engine): 1992 – 1995
• 328i / 328is / 328ic (M52 2.8L engine): 1996 – 1999
• 323i (2.5L variant): 1998 – 1999 (Convertible layouts)
• M3 (S50 3.0L & S52 3.2L engines): 1995 – 1999
• Z3 Roadster / Coupe: Early 6-cylinder variants

(Note: Because the E36 exhaust system utilizes a dual-pipe layout, the left-hand pipe typically uses a completely different style of compression flange gasket. This 48mm sealing ring is unique to the right side).