Marine-Grade Regulator Rectifier – Direct OEM Replacement for Sea-Doo 787/800 Engines (278-000-443)
Engineered to restore precise voltage regulation and prevent stator burnout, this heavy-duty rectifier meets original specifications for 1995-1999 Sea-Doo performance models.

Key Features:
Advanced Thermal Management – Extruded aluminum heatsink reduces operating temps by 30%
Saltwater-Resistant Design – Epoxy-potted circuitry with IP67 waterproof rating
Voltage Precision – Maintains 13.8-14.4V DC output under full load
Vibration-Proof Construction – Reinforced mounting tabs withstand 50G impacts

Replaces OEM Part Number:
278-000-443 | 278000443

Compatibility Details:
Sea-Doo 787 Models:
1995 XP (787 engine only)
1996-1997 GTX
1996 GSX
1996-1997 Challenger
Sea-Doo 800 Models:
1996 XP
1997-1999 SPX

Marine Certification:
1,000-hour salt spray tested (ASTM B117)
50,000 thermal cycles (-40°F to 250°F)
Reverse polarity protection up to 16V

Package Includes:
1x Regulator Rectifier Assembly
Pre-installed stainless steel hardware

Proven Results:
Eliminates 92% of overvoltage-related stator failures
3X longer service life vs. original components
Maintains optimal RPMs at WOT (Wide Open Throttle)

Critical Installation Notes:
1. Verify existing rectifier part number matches 278-000-443
2. Clean all electrical contacts with dielectric grease before installation
3. Torque mounting bolts to 8-10 ft-lbs