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Aftermarket Exhaust Manifold Gasket Kit - for Seadoo 787 800 includes Manifold 420931481 and Head Pipe 420931503 Gaskets
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Aftermarket Exhaust Manifold Gasket Kit - for Seadoo 787 800 includes Manifold 420931481 and Head Pipe 420931503 Gaskets Aftermarket Exhaust Manifold Gasket Kit - for Seadoo 787 800 includes Manifold 420931481 and Head Pipe 420931503 Gaskets Aftermarket Exhaust Manifold Gasket Kit - for Seadoo 787 800 includes Manifold 420931481 and Head Pipe 420931503 Gaskets Aftermarket Exhaust Manifold Gasket Kit - for Seadoo 787 800 includes Manifold 420931481 and Head Pipe 420931503 Gaskets Aftermarket Exhaust Manifold Gasket Kit - for Seadoo 787 800 includes Manifold 420931481 and Head Pipe 420931503 Gaskets Aftermarket Exhaust Manifold Gasket Kit - for Seadoo 787 800 includes Manifold 420931481 and Head Pipe 420931503 Gaskets Aftermarket Exhaust Manifold Gasket Kit - for Seadoo 787 800 includes Manifold 420931481 and Head Pipe 420931503 Gaskets

Aftermarket Exhaust Manifold Gasket Kit - for Seadoo 787 800 includes Manifold 420931481 and Head Pipe 420931503 Gaskets

  • $ 1295


JSP Manufacturing® Aftermarket Seadoo Exhaust Manifold Gasket Kit

Our JSP Brand Aftermarket Sea Doo Exhaust Gasket Kit is compatible with the SeaDoo models listed below. Tested for consistent quality and meets or exceeds original OEM specifications. Please check you part number before placing an order. New Aftermarket Exhaust Manifold Gasket Kit

  • New Aftermarket Exhaust Manifold Gasket Kit
  • Compatible with SeaDoo
  • OEM quality aftermarket replacement part
  • Exact item is pictured
  • Quantity: 1 kit

Each Kit Includes: 2 gaskets total
1 - Manifold Gasket
1 - Head Pipe Gasket

Replaces the following Part Numbers:
Manifold Gasket replaces OEM Part #:
420931481
290931481
290931480
SBT #: 41-107-03
WSM #: 007-583

Head Pipe Gasket replaces OEM Part #:
420931503
290931503
290931500
SBT #: 41-107-04
WSM #: 007-584

Brand: JSP Manufacturing®
MPN: GK-EX-KIT-420931481+420931503

Aftermarket Part fits the following Years, Make & Models:
Seadoo PWC:
2005 3D RFI 800
1996-1997 GSX 800
1999-2000 GSX RFI 800
1990-1991 GT 580
2003-2005 GTI LE RFI 800
2004-2005 GTI RFI 800
1996-1997 GTX 800
1998-2000 GTX RFI 800
1989-1992, 1997 SP 580
1997-1999 SPX 800
1995-1997 XP 800

Seadoo Jet Boat:
1996 - 1999 Challenger 800
1997 - 1999 Challenger 1800
1998 - 1999 Speedster 800

**Please verify part number from original unit, before ordering to help ensure fitment.

We offer a 30-Day Guarantee, if you have any issues with your item, please contact us to resolve the problem.

Return Information
Returns will be the cost of the item purchased, MINUS any shipping costs that we incurred shipping to you, or any return shipping costs. All returns must be in unused, undamaged and unaltered condition. If you have any questions regarding your return, please contact us.

Shipping Information
We guarantee that if you place the order on a business day before 2PM, it will ship out that same day.  If placed after 2PM, it will ship out the following business day. Unfortunately, once your order leaves our facility, we are unable to control delays or errors by the shipping carrier.

Please contact      

Via Chat or at 727-328-8733 If you are have any questions or are not sure if this will work with your model.


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