SIERRA 3 Inch EPDM Exhaust Flapper Valve with Clamp – 18-4456

Description

SIERRA 3 Inch EPDM Exhaust Flapper Valve with Clamp – 18-4456

Sierra 18-4456 is a exhaust flapper valve with clamp for Marine exhaust outlets requiring a 3-inch (76.2 mm) outside flapper valve, including applications matching MerCruiser 34765-series references.

• UV-stabilized EPDM flapper helps reduce following-sea and shutdown water backflow through the exhaust outlet.
• Supplied with a stainless-steel clamp for installation on a 3-inch outside exhaust tip.
• Cross-references MerCruiser 34765A1 / 34765A2 / 34765Q02, GLM 89240 and Mallory 9-44000.
• Designed as a direct marine-service replacement where the listed Sierra/OEM reference is specified.
• Compare the original part number, dimensions and assembly configuration before installation.

Fitment for marine engine and drive service parts can vary by model, serial number, drive/gearcase, cooling configuration and prior OEM supersessions. Compare the original OEM number and physical configuration before installation, and follow the applicable manufacturer service procedure and torque specifications.

Specifications

• Manufacturer: Sierra
• Part Number: 18-4456
• Part Type: Exhaust flapper valve with clamp
• Application: Marine exhaust outlets requiring a 3-inch (76.2 mm) outside flapper valve, including applications matching MerCruiser 34765-series references.
• Nominal Outlet: 3 in (76.2 mm)
• Flapper Material: UV-stabilized EPDM
• Clamp: Stainless steel

Interchange / OEM References

• MerCruiser: 34765A1, 34765A2, 34765Q02
• OMC: 509494
• GLM: 89240
• Mallory: 9-44000