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Kawasaki Internal Components

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  • R&D KAWASAKI ULTRA HIGH PERFORMANCE VALVE STEM SEAL KIT

    R&D offers High Performance Valve Stem Seal Kits specifically for Kawasaki’s  5mm stem size that are manufactured from only the best high quality Viton rubber materials that will resist high valve guide and oil temperatures to maintain a good valve seal in all high rpm, high performance applications. When valve springs are changed out or periodic head service work is being performed, trust R&D Valve Stem Seal Kits at any perfor...
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    $76.95

  • R&D KAWASAKI ULTRA RC1 RACING CAM KIT

    R&D’s RC1 Recreational/Racing Camshaft kit offers a great boost in horsepower for the recreational rider/racer who wants as much lift and duration that can be “Bolted In” without valve spring changes or valve guide machining. The R&D RC1 will install and work well with O.E.M. valve springs and retainers. The RC1 is a great choice for recreational and offshore riding or racing targeting the 7500-8500 RPM range for top end...
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    $999.95

  • RIVA Valve Train Upgrade Kit - Kawasaki Ultra 250/260/300/310 & 15F

    Our Valve Train Upgrade Kits increase the reliability of your modified engine by reducing the possibility of valve float at high rpm. Includes lightweight, precision-machined titanium valve retainers, racing valve springs, and base washers. 2007 KAWASAKI ULTRA 250X 2008 KAWASAKI ULTRA 250X 2009 KAWASAKI ULTRA 260X 2010 KAWASAKI ULTRA 260X 2011 KAWASAKI ULTRA 300X 2012 KAWASAKI ULTRA 300X 2013 KAWASAKI ULTRA 300X 2014 KAWASAKI ULTRA ...
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    $749.95

  • R&D KAWASAKI ULTRA STAINLESS INTAKE VALVE KIT 1MM

    R&D offers High Performance Racing Valves that are designed to be lighter, stronger, and most importantly, outflow stock O.E.M. valves. R&D valves will flow 1.5 CFM more over stock valves with R&D’s race proven back cut seats and high flow undercut stems. Each R&D Valve is a one piece forged design from only the highest grades of Stainless and Inconel materials with a 52 HRC hardened valve stem tip for maximum strength. Valv...
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    $274.95

  • R&D KAWASAKI ULTRA STAINLESS INTAKE VALVE KIT STANDARD (SET OF 8)

    R&D offers High Performance Racing Valves that are designed to be lighter, stronger, and most importantly, outflow stock O.E.M. valves. R&D valves will flow 1.5 CFM more over stock valves with R&D’s race proven back cut seats and high flow undercut stems. Each R&D Valve is a one piece forged design from only the highest grades of Stainless and Inconel materials with a 52 HRC hardened valve stem tip for maximum strength. Valv...
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    $249.95

  • Kawasaki Pro-X Piston Kits

    High-quality Pro-X Pistons are the perfect replacement for original pistons in your watercraft. Precision machined from a low-expansion, low friction piston alloy to the same specifications as the OEM equipment. Kits include piston, rings, wrist pin and circlips. Wrist pin bearing sold separately.
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    $125.96

  • R&D KAWASAKI ULTRA STAINLESS INTAKE VALVE KIT 1MM (SET OF 8)

    R&D offers High Performance Racing Valves that are designed to be lighter, stronger, and most importantly, outflow stock O.E.M. valves. R&D valves will flow 1.5 CFM more over stock valves with R&D’s race proven back cut seats and high flow undercut stems. Each R&D Valve is a one piece forged design from only the highest grades of Stainless and Inconel materials with a 52 HRC hardened valve stem tip for maximum strength. Valv...
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    $364.95

  • R&D KAWASAKI ULTRA EXHAUST VALVE KIT STANDARD (SET OF 8)

    R&D offers High Performance Racing Valves that are designed to be lighter, stronger, and most importantly, outflow stock O.E.M. valves. R&D valves will flow 1.5 CFM more over stock valves with R&D’s race proven back cut seats and high flow undercut stems. Each R&D Valve is a one piece forged design from only the highest grades of Stainless and Inconel materials with a 52 HRC hardened valve stem tip for maximum strength. Valv...
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    $339.95

  • R&D KAWASAKI HIGH PERFORMANCE DUAL VALVE SPRING KIT

    R&D has developed an economical solution for upgrading the Kawasaki valve train by offering a series of upgrade parts that will work great with the O.E.M. retainer and valve seals. R&D has documented that the seat tension or pressure on the stock springs is a low 52-55 pounds, and coil bind on the stock springs occurs .050” after full lift on the stock cams. As an industry rule or standard, as boost levels are increased to the engin...
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    $505.50

9 Item(s)

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