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Yamaha GP1800 Parts

Full list of performance parts available for your Yamaha GP1800. Please email us with questions.
Yamaha GP1800
Performance Parts and Packages
Yamaha GP1800

Check out our GP1800 build series!

Our exciting new build series is in full swing! Follow along as we build out one of the fastest GP1800's on the water! Feel free to comment and ask questions on the videos as we progress!

Let us know if you have any questions or concerns. We proudly price match advertised prices!

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  • Impeller Shaft Tool SHO/HO/FZR/FZS/GP1800

    Drive shaft holder tool required for changing impeller.
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    $28.95

  • Yamaha SHO/HO Spark Plug

    Yamaha GP1800/SVHO/SHO/HO replacement spark plug. (requires 4)
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    $7.99

  • RIVA / V-TECH Maptuner X Tune Yamaha Bundle

    This is a bundle of the Yamaha tuning credit and the V-Tech maptuner x required to load the tune on your ski, Includes cable needed! This tuner allows you to tune your ski on your own! No more sending in to be service every time you need a different map for your ski. This will literally save hundreds of dollars and hours of shipping time! Works on the GP1800 and skis from 2008 to 2018! Download Instructions here: TR 1 models include: 201...
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    Regular Price: $1,189.80

    Special Price $999.99

  • WORX Yamaha Trim Extension SVHO VXR FX GP1800

    This Yamaha Trim extension has been specifically designed to address the trim issue faced with newer Yamaha models. This trim extension provides a quick and easy solution to the lack of trim range found with OEM parts. Designed to increase trim range, this cost effective upgrade will bring the nose of your ski higher, reducing surface drag and providing an added increase to stop speed. Typically an increase of 1-2 MPH can be found in g...
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    $33.00

  • RIVA Yamaha SVHO/SHO/HO/GP1800 Intake Manifold Upgrade Kit (See Fitment)

    Our Intake Manifold Upgrade Kit enables your SHO engine to produce more horsepower by delivering increased air flow and boost pressure (+1lb). Precision tapered billet sleeve directly replaces restrictive mesh element in intake manifold. Provides improved low end punch and mid range pull through quick & easy installation. Includes detailed installation instructions. NOTE: Our testing has determined the stock ECU will compensate for the incre...
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    $39.95

  • Riva Free Flow Exhaust Kit, GP1800/VXR/VXS

    Replaces the restrictive sound suppression system located between the water box and hull exit on your watercraft. Improves engine performance by reducing back pressure and harmful detonation. Includes mandrel bent aluminum tubing that is powder coated to prevent corrosion, high-temp silicone replacement coupler and installation instructions. Replaces the restrictive sound suppression system located between the water box and hull exit on your wate...
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    $249.95

  • RIVA YAMAHA WATER BOX SVHO/SHO/HO 1.8L

    Fits all 1.8L Yamaha Watercraft Developed on our Dyno and tested extensively on the water, this water box features radiused exhaust tubes and end caps for optimum exhaust flow. Unique exhaust baffle will increase the low-end power and mid-range pull of your Yamaha watercraft. Delivers up to 15hp on modified engines along with significant torque gains. High-strength aluminum construction will survive backfires and meltdowns. Powder coated to preve...
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    $469.95

  • RIVA Solas Yamaha 1800 Impeller YV-CD-13/18

    Brand : Solas Item #: YV-CD-13/18 - Designed for SVHO engines with a tune The new Solas Concord YV-CD-13/18 blows away the performance of your stock impeller! Large blade area and superior hub design deliver increased acceleration and top speed. NOTE: Designed for use with Yamaha FZR/FZS SVHO & GP1800 models. SOLAS Impellers have a wide range of designs that can increase the low-end thrust and top-end speed of your personal watercraft &n...
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    Regular Price: $316.99

    Special Price $309.99

  • RIVA Yamaha GP1800, 2015+ VXR Seat Cover

    Cut down on slippage for your Yamaha GP1800 and 2015+ VXR! These covers are hand made in the USA with the finest materials including Ballistic Nylons, Ultra-Grade Marine Vinyl, plus Jettrim's exclusive Nada-Hyde, Non-Slip Traction Material.
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    $314.95

  • Solas Yamaha 1800 Impeller 13/20

    Brand : Solas Item #: YV-CD-13/20   OEM #:   160mm Fits the following skis 2014 YAMAHA FX SVHO 2014 YAMAHA FZR 2015 YAMAHA FX SVHO 2015 YAMAHA FZR 2016 YAMAHA FX CRUISER SVHO 2016 YAMAHA FZR 2016 YAMAHA FZS 2017 YAMAHA FX LTD SVHO 2017 YAMAHA FX SVHO 2014 YAMAHA FX CRUISER SVHO 2014 YAMAHA FZS 2015 YAMAHA FX CRUISER SVHO 2015 YAMAHA FZS 2016 YAMAHA FX SVHO 2017 YAMAHA FX CRUISER SVHO 2017 YAMAHA GP1800
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    $299.99

  • RIVA Yamaha GP1800 & VXR/VXS 2015+ Rear Exhaust Kit

    Our rear exhaust kit for 2015+ Yamaha VXR/VXS delivers performance and cutting-edge style. Allows for removal of restrictive sound suppression system located between water box and hull exit. Improves engine performance by reducing back pressure and restriction. Includes mandrel bent aluminum exhaust tube that is powder coated to prevent corrosion, large billet through-hull exhaust outlet, billet OEM exhaust outlet block-off and high-temp silicone...
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    $429.95

  • RIVA Yamaha SVHO/SHO Performance Blow-off Valve Kit

    Our Performance Blow-off Valve Kit improves supercharger reliability and performance by relieving unwanted pressure during off-throttle operation. Reduces supercharger clutch & gear wear and eliminates heat soak in discharge tube. High-strength silicone hose with integrated HKS valve installs easily in place of OEM elbow joint. Includes high quality HKS Super SQV (Super Sequential Blow-off Valve) that features unique sequential valve structure an...
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    $419.95

  • RIVA Yamaha 'GEN-2' GP1800 SVHO Top-Loader Intake Grate

    Our revolutionary new intake grate for GP1800, VXR and VXS delivers the ultimate in speed, hook up & strength. All new design features oversized top loader wing and optimized inlet ramp for closed course and offshore racing. Bulletproof stainless steel construction makes this grate virtually indestructible and eliminates the need for additional restrictive support bars. Race bred design significantly reduces cavitation and provides superior h...
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    $379.00

  • RIVA Yamaha GP1800 2017-2020 Power Filter Kit

    Our Power Filter feeds your supercharged engine a steady diet of cool air delivering greatly improved acceleration and rpm. Replaces restrictive stock air box with a high-volume, precision-formed intake duct that attaches to the supercharger via a large 4” adapter. Cool air enters the system via an oversized K&N filter element. Includes detailed installation instructions. Note: For heavy surf use we recommend the use of our waterproo...
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    $354.95

  • RIVA FLYWHEEL BOLT UPGRADE KIT (Sea-Doo & Yamaha)

    Fits all Sea-Doo 1503 & 1630 engines, all Yamaha 1.8L engines.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 reliable performance! Sold as a set of 6.Fits: 2022 YAMAHA GP1800R SVHO2022 YAMAHA GP1...
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    $29.95

  • RIVA ENGINE COOLING UPGRADE KIT, SVHO, STAGE 1/STOCK

    Key Feature: Improved performance & reliability. Quick and easy to install. Features specially sized drill bits and clamps. Includes detailed installation instructions.   This simple kit improves water flow to Yamaha SVHO engine and intercooler for improved performance & reliability. Greatly reduces loss of power due to "heat fade" on stock and Stage 1 modified craft. Includes tools necessary to enlarg...
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    $21.95

  • RIVA Yamaha SVHO 2018+ Intake Manifold Upgrade Kit

    Our Intake Manifold Upgrade Kit enables your SVHO engine to produce more horsepower by delivering increased air flow and boost pressure (+1lb). Precision tapered billet sleeve directly replaces restrictive mesh element in intake manifold. Provides improved low end punch and mid range pull through quick & easy installation. Includes detailed installation instructions. NOTE: Our testing has determined the stock ECU will compensate for the incr...
    Learn More...
    $149.95

  • RIVA Yamaha GP 1800 / VXR / VXS Billet Driveshaft Sleeve Kits

    Direct heavy-duty replacement for original thin rubber hose. Anodized to prevent corrosion. High quality AH&E silicone couplers. Overlapping clamp design features smooth inner surface to prevent coupler damage. Recommended for all performance applications. Our precision machined Billet Driveshaft Sleeve is a direct replacement for the thin factory rubber hose that is prone to distortion and failure. Sleeve is constructed of 6...
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    $54.95

  • RIVA Yamaha GP1800 STAGE 1 PLUS KIT (2017)

    Our Stage 1 PLUS Kit delivers a huge performance gain with simple bolt-on modifications! Expect awesome acceleration and a top speed increase of 14 MPH. RIVA MaptunerX Yamaha 1.8L Bundle is utilized to reflash your original ECU (Engine Control Unit) for added performance. The MaptunerX Bundle delivers instant plug-in horsepower! Quickly and easily load our Stage 3 performance tune into your Yamaha ECU eliminating the need to ship out your ECU f...
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    Regular Price: $2,141.50

    Special Price $2,030.00

  • RIVA Yamaha GP1800 Pump Seal Kit "Gen-2"

    Dramatically reduce cavitation and prop spin with our easy to install Pump Seal Kits. Location specific, molded inserts fill the voids in pump inlet shoe that bleed air into pump causing cavitation. Recommended for modified craft using RIVA Gen-2 Top-Loader Intake Grate (part# RY22110-1). Includes detailed installation instructions.
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    $84.95

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