Three layer stainless construction for durability & corrosion resistance. Viton coated & embossed surfaces for maximum sealing between head and cylinder block. Unique design promotes even torque load across sealing surface & requires no re-torque...

Our Engine Cooling Upgrade Kits deliver dramatically improved cooling efficiency to engine and intercooler for increased performance & reliability. Greatly enhances water flow & pressure by replacing restrictive OEM pump strainer & water fittings with high-flow billet components and superior routing...

The RIVA Flywheel Bolt Upgrade Kit is a high strength bolt kit directly replaces OEM flywheel bolts that are prone to shearing off on modified Sea-Doo 1503/1630 & Yamaha 1.8 liter engines. Superior materials and design improve durability under high stress conditions. An essential upgrade for reliabl...

The RIVA Flywheel Bolt Upgrade Kit is a high strength bolt kit directly replaces OEM flywheel bolts that are prone to shearing off on modified Sea-Doo 1503/1630 & Yamaha 1.8 liter engines. Superior materials and design improve durability under high stress conditions. An essential upgrade for reliabl...

NOTE: For use with Yamaha 6S5 Impeller Ducts .

Our high-quality quick release flush kits make maintenance a snap. Whether you're flushing or tuning your watercraft out of the water, RIVA Flush Kits are a necessity. For use with PWC s without factory OEM flush kit....

Fuel your passion for motorsports with this classic black tee with a custom white Riva Racing race track logo design. The RIVA Race Track Tee in Bone/Blue features a race track design where speed meets style with a bold clean look. The distinctive horizontal line separation gives the shirt a streaml...

Show your love for the track with this custom RIVA Racing race track logo design. The RIVA Race Track Tee in Bone/Blue features a race track design where speed meets style with a bold clean look. The distinctive horizontal line separation gives the shirt a streamlined, high performance feel while ke...

The RIVA Racing Tactics Hoodie showcases a custom Flag RIVA Racing logo on a classic pullover design. Crafted from premium cotton and fleece, this heavyweight sweatshirt offers exceptional softness and comfort. Perfect for staying warm after a day on the water, it features quick-drying materials to ...

The RIVA Racing Tactics Hoodie showcases a custom Flag RIVA Racing logo on a classic pullover design. Crafted from premium cotton and fleece, this heavyweight sweatshirt offers exceptional softness and comfort. Perfect for staying warm after a day on the water, it features quick-drying materials to ...