Exhaust Protector Valves

Size Range 3″ – 6″ / 76.2mm – 152.4 mm Warranty  Limited Lifetime

Shields Exhaust Protector Valves have a specially compounded rubber flapper valve designed to prevent water from entering the exhaust system in following seas or when backing down. The product is made of weather resistant EPDM with a UV stabilizer.

18 – # s include stainless steel hose clamp
N – # s are bulk flappers only

ORDER INFORMATION

Code # Pipe Size mm OEM OEM
18-4456* 3″ 76.2 Mercury 34765A1
18-4457* 4″ 101.6 Mercury 12644A1
18-4458* ** 5″ or 6″ 127 or 152.4
N-18-4456 3″ 76.2
N-18-4457 4″ 101.6
N-18-4458** 5″ or 6″ 127 or 152.4
* Display Packaged
** Must be cut at marks to fit 5″ pipe