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Sea Doo Cylinder Head Components

Sea-Doo Forged Rocker Arm Upgrade Kit

rocker-upgrade kit

Upgrade your outdated cast rocker arms with the new 325 model forged rocker arms. The cast rocker arms are known for breaking at higher RPM with aftermarket camshafts. The forged rocker arms are a stronger alternative that will not break on modified skis. The kit includes 6 forged exhaust rocker...

  • $999.83
    IMG_8151 Medium.jpeg

    Sea-Doo Forged Rocker Arm Upgrade Kit

  • $999.83
  • Upgrade your outdated cast rocker arms with the new 325 model forged rocker arms. The cast rocker arms are known for breaking at higher RPM with aftermarket camshafts. The forged rocker arms are a stronger alternative that will not break on modified skis. The kit includes 6 forged exhaust rocker...

    Sea Doo 300 HP Valve Cover and Coil upgrade kit for 2005 and older 4-Tec Engines

    2016CK-2005OLD

    Upgrade your 2005 and older 4-Tec motor to the new style bolt in ignition coils used on the 2016 Sea Doo 300 HP watercraft. This kit contains the following all original Sea Doo OEM components 3 x Ignition Coils with coil cap Seals 3 x Coil connectors with pins and connector seals. (used to rep...

  • $478.53
    300 Valve Cover.jpg

    Sea Doo 300 HP Valve Cover and Coil upgrade kit for 2005 and older 4-Tec Engines

  • $478.53
  • Upgrade your 2005 and older 4-Tec motor to the new style bolt in ignition coils used on the 2016 Sea Doo 300 HP watercraft. This kit contains the following all original Sea Doo OEM components 3 x Ignition Coils with coil cap Seals 3 x Coil connectors with pins and connector seals. (used to rep...

    Sea Doo 300 HP Valve Cover and Coil Upgrade Kit for 2006 and newer 4-Tec Engines

    2016CK-2006NEW

    Upgrade your 2006 and newer 4-Tec motor to the new style bolt in ignition coils used on the 2016 Sea Doo 300 HP watercraft. This kit contains the following all original Sea Doo OEM components 3 x Ignition Coils with coil cap Seals 3 x Coil connectors with pins and connector seals. (used to rep...

  • $578.53
    300 Valve Cover.jpg

    Sea Doo 300 HP Valve Cover and Coil Upgrade Kit for 2006 and newer 4-Tec Engines

  • $578.53
  • Upgrade your 2006 and newer 4-Tec motor to the new style bolt in ignition coils used on the 2016 Sea Doo 300 HP watercraft. This kit contains the following all original Sea Doo OEM components 3 x Ignition Coils with coil cap Seals 3 x Coil connectors with pins and connector seals. (used to rep...

    RIVA Sea-Doo 1503/1630, Cylinder Head Stud Kit

    RS10050-HSK

    Our ultra high strength cylinder head stud kit is essential equipment when upgrading internal components on your high boost Sea-Doo engine. Precision machined from premium grade 8740 alloy and heat treated to exacting tolerances, these studs dramatically increase reliability & ease of maintenance. ...

  • $214.95
    F144791177.jpg

    RIVA Sea-Doo 1503/1630, Cylinder Head Stud Kit

  • $214.95
  • Our ultra high strength cylinder head stud kit is essential equipment when upgrading internal components on your high boost Sea-Doo engine. Precision machined from premium grade 8740 alloy and heat treated to exacting tolerances, these studs dramatically increase reliability & ease of maintenance. ...

    head bolts.JPG

    OEM Sea Doo 4-Tec Head Bolts (set of 8) for 185/215/255/260/300 HP Engines

  • $79.76
  • Genuine Sea Doo replacement head bolts (set of 8)...

    OEM Sea-Doo 4-Tec Rocker Shaft Bolts (set of 6)

    6 x 420641080

    The rocker shaft bolts must be replaced on a Sea Doo 4-Tec Engine any time they are removed. These are the genuine OEM Sea Doo rocker shaft bolt replacements (set of 6)

  • $35.94
    SD 420641080.jpg

    OEM Sea-Doo 4-Tec Rocker Shaft Bolts (set of 6)

  • $35.94
  • The rocker shaft bolts must be replaced on a Sea Doo 4-Tec Engine any time they are removed. These are the genuine OEM Sea Doo rocker shaft bolt replacements (set of 6)...

    OEM Sea-Doo 1630 Cylinder Head Gasket for 300 HP Skis

    420950772

    Original Equipment Cylinder Head Gasket for Sea-Doo 1630 engines.

  • $129.99
    F144978071.jpg

    OEM Sea-Doo 1630 Cylinder Head Gasket for 300 HP Skis

  • $129.99
  • Original Equipment Cylinder Head Gasket for Sea-Doo 1630 engines....

    RIVA Sea-Doo 1503 Pro-Series Cylinder Head Gasket

    RS10050-CHG-1503

    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 Pro-Series Cylinder Head Gaskets were dev...

  • $161.95
    F144791185.jpg

    RIVA Sea-Doo 1503 Pro-Series Cylinder Head Gasket

  • $161.95
  • 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 Pro-Series Cylinder Head Gaskets were dev...

    OEM Sea Doo Head Gasket for 4-Tec Engines

    420950770

    Genuine Sea Doo 4-Tec head gasket. The head gasket must be replaced any time the head is removed.

  • $119.99
    SD 420950770.jpg

    OEM Sea Doo Head Gasket for 4-Tec Engines

  • $119.99
  • Genuine Sea Doo 4-Tec head gasket. The head gasket must be replaced any time the head is removed....

    Calas Performance Billet Racing Camshaft

    FF-SD-CS-0043

    Introducing the ultimate performance camshaft for Sea-Doo engines! Gain 350-450 RPM, 3-5 MPH, and arm stretching acceleration throughout the entire power band with the Calas Performance Billet Camshaft. This cam is precision CNC machined from high strength steel and heat treated for maximum durabili...

  • $799.00
    FF-SD-CS-0043-2.jpg

    Calas Performance Billet Racing Camshaft

  • $799.00
  • Introducing the ultimate performance camshaft for Sea-Doo engines! Gain 350-450 RPM, 3-5 MPH, and arm stretching acceleration throughout the entire power band with the Calas Performance Billet Camshaft. This cam is precision CNC machined from high strength steel and heat treated for maximum durabili...

    RIVA Sea-Doo 215/230/255/260/300 Racing Camshaft

    RS19140-BCS

    Our precision ground racing camshaft delivers a serious gain in horsepower & torque with its optimized valve lift profile. Reduced weight for quicker revving. Billet steel construction provides superior strength and torsional stability. Use with Riva Valve Train Upgrade Kit for maximum reliability. ...

  • $999.95
    M144775826.jpg

    RIVA Sea-Doo 215/230/255/260/300 Racing Camshaft

  • $999.95
  • Our precision ground racing camshaft delivers a serious gain in horsepower & torque with its optimized valve lift profile. Reduced weight for quicker revving. Billet steel construction provides superior strength and torsional stability. Use with Riva Valve Train Upgrade Kit for maximum reliability. ...

    RIVA Sea-Doo 1503/1630 Valve Spring Compression Tool

    RS19050-VCT-1

    Our overhead Valve Compression Tool allows easy removal of valve springs and keepers without removing cylinder head. Includes compression adapter to pressurize cylinder keeping valves in place during removal of stock springs and keepers.For use with all Sea-Doo 4-TEC 1503 engines. tool instructi...

  • $161.95
    f144976349.webp

    RIVA Sea-Doo 1503/1630 Valve Spring Compression Tool

  • $161.95
  • Our overhead Valve Compression Tool allows easy removal of valve springs and keepers without removing cylinder head. Includes compression adapter to pressurize cylinder keeping valves in place during removal of stock springs and keepers.For use with all Sea-Doo 4-TEC 1503 engines. tool instructi...

    Supertech Sea-Doo Light Weight Valve Set for 185/215/230/255/260/300 HP Engines

    STValve Kit

    Designed to be a direct drop-in replacement for the OEM valves and requires no machining of cylinder head. Sold in sets of 12 (6 Intake/6 Exhaust). Includes high strength single groove valve locks. Stronger & lighter than stock valves. Intake valves weigh 42 grams. Exhaust val...

  • Retail Price
    $499.95
  •  
  • Discounted Price
    $399.96

  • Save: 20% off
    Supertech Valves.jpeg

    Supertech Sea-Doo Light Weight Valve Set for 185/215/230/255/260/300 HP Engines

  • Retail Price
    $499.95
  •  
  • Discounted Price
    $399.96

  • Save: 20% off

    Designed to be a direct drop-in replacement for the OEM valves and requires no machining of cylinder head. Sold in sets of 12 (6 Intake/6 Exhaust). Includes high strength single groove valve locks. Stronger & lighter than stock valves. Intake valves weigh 42 grams. Exhaust val...

    Calas Performance Springs & Retainers (Sea-Doo)

    FF-SD-VT-0046

    Calas Performance Sea-Doo retainers are manufactured with high quality military certified Titanium alloy and are CNC machined for a tight fit. Calas Performance Dual Valve Springs are computer designed to ensure that wire stress levels do not overpass the limits of stress defined in the diagrams of ...

  • $389.00
    FF-SD-VT-0046-2T.jpg

    Calas Performance Springs & Retainers (Sea-Doo)

  • $389.00
  • Calas Performance Sea-Doo retainers are manufactured with high quality military certified Titanium alloy and are CNC machined for a tight fit. Calas Performance Dual Valve Springs are computer designed to ensure that wire stress levels do not overpass the limits of stress defined in the diagrams of ...

    Supertech Sea-Doo Dual Valve Spring & Titanium Retainer Kit for 185/215/230/255/260/300 HP Engines

    STSpringKit and 6 x 420641080

    These kits are made exclusively by Supertech for the Sea-Doo 4-Tec engines. Specifications: 85lb seat pressure Outer Spring OD: 26.60mm / ID: 19.60mm Inner Spring OD: 19.40mm / ID:14.20mm Seat Pressure: 85 Maximum Recommended Lift: 12+ Coil Bind MM: 19.00 Includes 6 OE rocker arm shaf...

  • Retail Price
    $483.00
  •  
  • Discounted Price
    $386.40

  • Save: 20% off
    stspring kit.png

    Supertech Sea-Doo Dual Valve Spring & Titanium Retainer Kit for 185/215/230/255/260/300 HP Engines

  • Retail Price
    $483.00
  •  
  • Discounted Price
    $386.40

  • Save: 20% off

    These kits are made exclusively by Supertech for the Sea-Doo 4-Tec engines. Specifications: 85lb seat pressure Outer Spring OD: 26.60mm / ID: 19.60mm Inner Spring OD: 19.40mm / ID:14.20mm Seat Pressure: 85 Maximum Recommended Lift: 12+ Coil Bind MM: 19.00 Includes 6 OE rocker arm shaf...

    RIVA Sea-Doo 4-TEC Valve Train Upgrade Kit

    RS19050-VTU

    Our Valve Train Upgrade Kit increases 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, base washers and OE rocker arm shaft bolts that must be replaced during insta...

  • $599.95
    f144955795_nzastakio4m49tny.webp

    RIVA Sea-Doo 4-TEC Valve Train Upgrade Kit

  • $599.95
  • Our Valve Train Upgrade Kit increases 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, base washers and OE rocker arm shaft bolts that must be replaced during insta...

    RIVA Sea-Doo 2003 - 2023 4-TEC Valve Retainer Upgrade Kit

    RS19050-SRU-1

    Our Valve Retainer Upgrade Kit increases the reliability of your engine by reducing the possibility of valve float at high rpm. Includes 12 lightweight, precision-machined titanium valve retainers and 6 OE rocker arm shaft bolts that must be replaced during installation. A must for IJSBA & APBA Stoc...

  • $354.95
    f144955802_q3mhnnwbt8jebc9m.webp

    RIVA Sea-Doo 2003 - 2023 4-TEC Valve Retainer Upgrade Kit

  • $354.95
  • Our Valve Retainer Upgrade Kit increases the reliability of your engine by reducing the possibility of valve float at high rpm. Includes 12 lightweight, precision-machined titanium valve retainers and 6 OE rocker arm shaft bolts that must be replaced during installation. A must for IJSBA & APBA Stoc...

    WORX Seadoo Titanium Valve Retainer Kit

    WR02012

    Full set of 12 CNC machined retainers manufactured from high strength and hardened aerospace certified titanium alloy. Designed to add strength while offering weight reduction, all of our titanium retainers are finished to precise tolerances. A must for any Sea-Doo looking to rev over 8400 rpm ...

  • $330.00
    WORX RETAINERS.png

    WORX Seadoo Titanium Valve Retainer Kit

  • $330.00
  • Full set of 12 CNC machined retainers manufactured from high strength and hardened aerospace certified titanium alloy. Designed to add strength while offering weight reduction, all of our titanium retainers are finished to precise tolerances. A must for any Sea-Doo looking to rev over 8400 rpm ...

    RIVA Sea-Doo Performance Valve Set, Intake +1mm, Exhaust +2MM

    RS19050-HPV-1:2

    RIVA High Performance Valve Kits are engineered to improve reliability and performance in high-boost supercharged & turbocharged engines. Intake valves are built from high grade EV-8 (24-4N) stainless that is extremely resistant to corrosion. Exhaust valves are built from inconel alloy (IN-751) that...

  • $677.95
    F1447896477.png

    RIVA Sea-Doo Performance Valve Set, Intake +1mm, Exhaust +2MM

  • $677.95
  • RIVA High Performance Valve Kits are engineered to improve reliability and performance in high-boost supercharged & turbocharged engines. Intake valves are built from high grade EV-8 (24-4N) stainless that is extremely resistant to corrosion. Exhaust valves are built from inconel alloy (IN-751) that...

    single riva Sea Doo retainer (one piece)

  • $19.95
  • RIVA Sea-Doo Performance Valve Set, Standard

    RS19050-HPV-0

    RIVA High Performance Valve Kits are engineered to improve reliability and performance in high-boost supercharged & turbocharged engines. Intake valves are built from high grade EV-8 (24-4N) stainless that is extremely resistant to corrosion. Exhaust valves are built from inconel alloy (IN-751) that...

  • $569.95
    F1447896455.png

    RIVA Sea-Doo Performance Valve Set, Standard

  • $569.95
  • RIVA High Performance Valve Kits are engineered to improve reliability and performance in high-boost supercharged & turbocharged engines. Intake valves are built from high grade EV-8 (24-4N) stainless that is extremely resistant to corrosion. Exhaust valves are built from inconel alloy (IN-751) that...

    EAST SIDE PWC Sea-Doo Performance Valve Set

    ESPWCSEADOOVALVES

    Intake Our race series valve is forged from an EV-8 alloy then heat treated and stress relieved with a solution style heat treat process for better control through and through. This process produces a better overall product with proper material grain flow that results in superior longevity & re...

  • $429.00
    69464238489__8181792C-0093-45F0-A840-8FE353A892C9.jpg

    EAST SIDE PWC Sea-Doo Performance Valve Set

  • $429.00
  • Intake Our race series valve is forged from an EV-8 alloy then heat treated and stress relieved with a solution style heat treat process for better control through and through. This process produces a better overall product with proper material grain flow that results in superior longevity & re...

    RY19040-IVS-1.jpg

    RIVA Single Replacement Intake Valve for Sea Doo (STD size)

  • $39.95
  • EAST SIDE PWC Sea-Doo Performance Valve Guides

    EASTSIDE-PVG

    Eastside Custom valve guides use a high quality bronze alloy that has excellent wear resistance and thermal properties. Our valve guides are engineered for extreme heat, and rpm, and outlast any other bronze valve guide on the market. Valve guides need to be honed to valve size....

  • $170.00
    image_50422785east.jpg

    EAST SIDE PWC Sea-Doo Performance Valve Guides

  • $170.00
  • Eastside Custom valve guides use a high quality bronze alloy that has excellent wear resistance and thermal properties. Our valve guides are engineered for extreme heat, and rpm, and outlast any other bronze valve guide on the market. Valve guides need to be honed to valve size....

    RIVA Sea-Doo Performance Valve Guides

    RS19050-PVG-KIT

    Our Sea-Doo Performance Valve Guides provide greatly improved durability for performance applications. Key Features: Constructed of Aluminum/Bronze/Nickle Alloy. Dramatically improves reliability in high boost & high RPM applications. Superior material reduces friction and improves...

  • $189.95
    F139095039.jpg

    RIVA Sea-Doo Performance Valve Guides

  • $189.95
  • Our Sea-Doo Performance Valve Guides provide greatly improved durability for performance applications. Key Features: Constructed of Aluminum/Bronze/Nickle Alloy. Dramatically improves reliability in high boost & high RPM applications. Superior material reduces friction and improves...

    RIVA Sea-Doo Performance Valve Seats

    RS19050-PVS-KIT

    Our Sea-Doo Performance Valve Seats deliver the bulletproof reliability demanded by top engine builders. Key Features: Constructed of Aluminum/Bronze/Nickle Alloy. Dramatically improves reliability in high boost & high RPM applications. Durable sealing surface. Improved heat d...

  • $289.95
    F144793028.jpg

    RIVA Sea-Doo Performance Valve Seats

  • $289.95
  • Our Sea-Doo Performance Valve Seats deliver the bulletproof reliability demanded by top engine builders. Key Features: Constructed of Aluminum/Bronze/Nickle Alloy. Dramatically improves reliability in high boost & high RPM applications. Durable sealing surface. Improved heat d...

    Viton Valve Stem Seal Kit (set of 12) For Sea Doo 185/215/255/260/300 HP Engines

    SD Viton Seal Kit

    Replace your worn out OEM Seadoo valve seals with a set of Premium Viton seals. These seals are made from high quality Viton rubber, which offers exceptional lubrication of the valve stems and guides while keeping excessive amounts of oil from entering the combustion chamber, and can withstand the h...

  • Retail Price
    $95.88
  •  
  • Discounted Price
    $74.99

  • Save: 22% off
    SD Viton Seal Set.jpg

    Viton Valve Stem Seal Kit (set of 12) For Sea Doo 185/215/255/260/300 HP Engines

  • Retail Price
    $95.88
  •  
  • Discounted Price
    $74.99

  • Save: 22% off

    Replace your worn out OEM Seadoo valve seals with a set of Premium Viton seals. These seals are made from high quality Viton rubber, which offers exceptional lubrication of the valve stems and guides while keeping excessive amounts of oil from entering the combustion chamber, and can withstand the h...

    Aftermarket Head Casting for Sea Doo 185/215/255/260/300 HP Engines

    EC Head Casting

    Head casting for Sea Doo 4-Tec motors. Includes valve seats and guides. Valve seals, spring and retainer kits and valve kits are available here in our online store.

  • $699.99
    head casting.jpg

    Aftermarket Head Casting for Sea Doo 185/215/255/260/300 HP Engines

  • $699.99
  • Head casting for Sea Doo 4-Tec motors. Includes valve seats and guides. Valve seals, spring and retainer kits and valve kits are available here in our online store....

    Replacement Valve Locks for Riva Seadoo valves

    RS19050-VK-645

    Part number RS19050-VK-645 $9.49 FOR EACH VALVE

  • $10.95

    Replacement Valve Locks for Riva Seadoo valves

  • $10.95
  • Part number RS19050-VK-645 $9.49 FOR EACH VALVE...

    The GreenHulk PWC Performance Parts Store has been the number one trusted source for PWC enthusiasts since 2006. We carry only the aftermarket parts and accessories for your Sea Doo, Yamaha Waverunner and Kawasaki Jetski that have been tested and proven. In addition, most of our performance parts have been discussed in great depth by some of the most skilled PWC tuners in the world on our forums at GreenHulk.net. In addition to personal watercraft performance upgrades, we sell factory OEM replacement parts for all skis, Honda, Yamaha, Kawasaki, Suzuki and Can-Am dirt bikes, street bikes, Quads, ATV, UTV and Yamaha outboards.

    We offer the absolute best customer service in the industry, guaranteed. We look forward to serving your needs!