Mercury OptiMax Tracker Diaphram
Part # 804533
The tracker diaphram that is installed in the starboard fuel rail on either the 2.5L (135 - 175 HP) or 3.0L (200-300 HP) Optimax Engines.
We recommend if you do not have a Mercury Dealer doing the job that you purchase the Mercury Diaphragm Installation Tool (Mercury Part #: 91-889431).
Please contact us with any questions, or to verify correct parts.
Offshore Performance Specialties
Fort Myers, FL
