This is an original genuine Sea-Doo Factory BRP Personal Watercraft Rear Electrical Box MPEM Junction Cover. This critical electrical protection component is a New Old Stock NOS brand-new uninstalled original factory part. Molded from heavy-duty high-impact composite resin, this authentic factory e-box lid seals over the electronic ignition, fuses, relays, and Multi-Purpose Electronic Module board to protect vital electrical controls from water intrusion, corrosion, and engine bay moisture down the waterway.
Brand Sea-Doo OEM / BRP
Part Number 278000786 - Supersedes or interchanges with 278000782, 278000808, and 278000825
Component Type Rear Electrical Junction Box MPEM Protective Outer Cover Lid
Material High-Impact Molded Composite Marine Resin
Quantity Single - Includes One Complete Plastic Electrical Box Cover
Condition New Old Stock NOS pristine uninstalled condition in original factory condition. The main composite housing body, sealing lip channels, outer latch tabs, and wire loom exit ports are 100 percent flawless with no cracks, scuffs, warping, or fading. Ready for immediate installation.
Function Seals the main electrical junction box to shield sensitive electronic modules, relays, and fuses from water splash safely
Based on verified original equipment manufacturer parts catalogs, electrical microfiche schematics, and factory hull assembly diagrams, this specific 278000786 electrical box cover configuration fits a broad spectrum of 717, 787, and 800cc Sea-Doo PWC platforms spanning the 1996 through 2002 production years:
Sea-Doo GTX and GTX RFI models spanning the 1996 through 2002 production years
Sea-Doo GSX, GSX RFI, and GSX Limited models spanning the 1996 through 2000 production runs
Sea-Doo SPX models spanning the 1996 through 1999 production years
Sea-Doo GTS and GTI models spanning the 1996 through 2001 production runs
Sea-Doo XP and XP Limited models spanning the 1996 through 1998 production years
Sea-Doo Challenger, Explorer, and Speedster jet boat models matching this specific rear electrical e-box footprint
Note This electrical box cover is engineered specifically for mid-to-late 1990s and early 2000s rear e-box configurations. It does not include the rubber perimeter gasket seal, inner MPEM circuit board, or internal fuses unless specified. Please inspect your original electrical box footprint, check your perimeter latch placement, and cross-reference your factory part numbers prior to purchasing to guarantee a clean, flush fit.
We are a Veteran Owned and Operated distributor based in the Upper Peninsula of Michigan. All parts are inspected by our technician to ensure you receive a quality, usable component. We pride ourselves on fast shipping and honest descriptions.
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International Worldwide shipping is available through standard international postal transit options
30-Day Return Policy on all non-electrical items
NOTE There is a 20% restocking fee on all returns
NO RETURNS ON ELECTRICAL ITEMS Please verify your requirements before purchasing
While we provide known applications and model origins, it is the buyer's responsibility to verify fitment for their specific application. Please compare your original component configuration to the details shown in our photos before purchasing.
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