Mercury OptiMax V6 Fuel Rail Diaphragm Kit 804533 8M6002988 with Tool 91-889431 For Sale - New and Used

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Mercury OptiMax V6 Fuel Rail Diaphragm Kit 804533 8M6002988 with Tool 91-889431:
$274.00

Premium Aftermarket Master Fuel Rail Rebuild Kit for Mercury V6 OptiMax
This comprehensive aftermarket master kit includes everything you need to completely overhaul your V6 fuel rail and restore perfectly calibrated fuel and air pressure to your DFI system

What’s Included in the Master Kit:

(2) Air & Fuel Regulator Kits (Replaces 8M6002988): Comprehensive repair kits for the port side. Includes new flat-top diaphragms, precision-tension springs, billet aluminum covers, O-rings, and mounting screws to correct common factory spring fatigue.
(1) Fuel Rail Tracker Diaphragm (Replaces 804533): Direct-fit replacement knob-top membrane for the starboard side. Note: Designed to seamlessly reuse your original, heavy-duty OEM tracker cover, internal spring, and mounting hardware.
(1) Heavy-Duty Compressor Tool (Replaces 91-889431): Essential for safely compressing the heavy regulator springs during installation. Includes the white protective spacer to prevent marring or damaging your new aluminum covers.

Premium Build Quality:

Upgraded Elastomer: Fights degradation, swelling, and stiffening caused by modern ethanol-blended marine fuels.
Reinforced Anti-Tear Membrane: Built to withstand extreme, repetitive DFI pressure spikes without rupturing.