Don’t miss another weekend. This genuine Mercury Marine **DIAPHRAGM** ships fast and installs easily – get back on the water where you belong.

Built to Mercury’s exacting factory standards, this component ensures reliable operation across all engine RPM ranges. Part number F438747 is manufactured to exact Mercury Marine factory specifications for precision installation and optimal performance. Constructed from premium marine-grade materials designed to withstand harsh saltwater and freshwater environments.

Factory parts exist for a reason – they work. Part F438747 undergoes rigorous Mercury Marine quality testing that aftermarket manufacturers skip. The result? Reliable performance season after season.

FITS: 100-105HP CHRYSLER

• Fits CHRYSLER 100-105HP engines
• Compatible HP: 100HP, 105HP
• Covers 24 serial number ranges
• Configurations: Outboard
• OEM genuine Mercury Marine part

COMPLETE SERIAL NUMBER COMPATIBILITY:

100HP Models

• 100HP OUTBOARD (Chrysler)

105HP Models

• 105HP OUTBOARD (Chrysler)

Need help finding your serial number? Check our serial number location guide for step-by-step instructions on locating it on your engine.

Questions about part F438747? Use our parts finder tool to verify fitment yourself. Prefer to talk to an expert? Use the contact buttons at the bottom of this page to reach our team by text, call, or email.

40+ years of marine expertise. Fast shipping on discount-priced genuine Mercury parts – most orders ship same day.