Model Compatibility: Fits Mercruiser stern drive models with engine displacements of 3.6 L, 4.2 L, 4.3 L, 5.0 L, 5.7 L, and 7.4 L from model years 1982 through 1996.
Part Number Match: Matches part number 807166A3 as specified in the configuration for exhaust flappers and water shutters.
Quantity Included: Supplied as a pair of two units, intended for installation as matching left and right components in the stern drive exhaust system.
Functional Purpose: Designed to restore exhaust flapper and water shutter in compatible Mercruiser stern drive units.
Application Scope: Intended for use on Mercruiser stern drive systems requiring the 18-2732-9 specification exhaust flapper and water shutter assembly.
Description
Set of 2 Exhaust Flappers Water Shutters for Mercruiser Stern Drive engines. Compatible with 3.6L, 4.2L, 4.3L, 5.0L, 5.7L, and 7.4L V6 and V8 models. Fits 1982–1996 model years. Part number 807166A3. Sierra part number 18-2732-9. Designed for use with the exhaust elbow and installed in the exhaust Y-pipe. Constructed from neoprene material. Functions to prevent water from entering the engine through the exhaust system. Compatibility Disclaimer: This is not an OEM item. Mentioned brands/models are used strictly for fitment illustration.