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Description
Sierra 18-4456 Universal 3" Exhaust Flapper
Includes 3" stainless steel clamp.
Features:
- Compounded rubber flapper valves stops water from entering the exhaust system
- Constructed with weather resistant EPDM with U/V stabilizer
Replaces:
- Mercruiser Stern Drive
- 34765A2, 34765A
- Aqua-Power
- 5018
- GLM
- 89240
- Mallory
- 9-44000
- Redline
- RL4456
California Residents: 
WARNING Cancer and Reproductive Harm - P65Warnings.ca.gov
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