√【8M6002988】:This diaphragm fits both the air and fuel regulator on all of the Optimax 3.0L Model Engines (200 - 300 HP). Additionally, it is the same diaphragm used for the fuel diaphragm on the Optimax 2.5L Model Engines (135 - 175 HP)
√【804533】:The tracker diaphragm is identified by a short knob at the top of the part. The tracker diaphragm that is installed in the starboard fuel rail on either the 2.5L (135 - 175 HP) or 3.0L (200-300 HP) Optimax Engines
√【High-Quality】:Made from high-quality materials for ultimate durability Manufactured to meet or exceed strict quality requirements
√【Installation】:It is worth noting that if you install it yourself, you will need a Mercury Air/Fuel Regulator Installation Tool.Before purchasing, please check if it is the part you need. If you have any questions, please contact us