Kawasaki JS300, 300SX, JS400, JS440, JS550, 550SX Extended Steer Nozzle +20mm Fiberon PET-GF15 High Strength Edition NAM Performance
$129.99
NAM Performance High Strength Performance Edition
This is the premium high-strength version of our NAM Performance extended steering nozzle for Kawasaki JS300, 300SX, JS400, JS440, JS550, and 550SX models, manufactured from Fiberon™ PET-GF15 engineering-grade filament for customers demanding maximum durability and long-term reliability in harsh marine environments.
This all-new +20mm extended steering nozzle design is built to reduce your watercraft’s turning radius. That means quicker steering response with less range of motion required at the handlebars, helping improve overall control, steering feel, and maneuverability on the water.
Unlike our standard PETG version, the High Strength Performance Edition is built using 15% glass fiber reinforced PET, providing improved heat resistance, creep resistance, stiffness, and long-term dimensional stability.
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Benefits:
Reduced turning radius
Faster steering response
Less handlebar movement required
Increased steering precision
+20mm extended design
Designed for Kawasaki JS300, 300SX, JS400, JS440, JS550, and 550SX models
Improved durability over standard PETG
Made in Upstate New York
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Why Choose the High Strength Performance Edition?
This version is printed from Fiberon PET-GF15, an engineering-grade composite specifically designed for demanding functional parts.
Compared to our standard PETG model, PET-GF15 offers:
Higher heat resistance
Superior long-term creep resistance
Better UV and environmental durability
Improved chemical resistance
Increased stiffness under load
Greater dimensional stability over time
Better resistance to deformation when stored or operated in hot environments
For riders looking for the strongest and most durable version of our extended steering nozzle, this is the model we recommend.
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Important Material Note
Because PET-GF15 prints at a much higher temperature and contains glass fiber reinforcement, the surface finish may appear slightly rougher compared to our PLA+ version. This is purely cosmetic and does not affect the strength, function, or performance of the nozzle.
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What’s Included
NAM Performance Extended Steering Nozzle (+20mm)
High Strength PET-GF15 construction
Installation support if needed
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Hardware Needed
The following hardware is required for installation:
(1) Stainless Rivnut
Link:
https://www.amazon.com/Stainless-Threaded-Insert-Nutsert-Rivnuts/dp/B07DKB2D58/ref=sr_1_3?crid=3CW82K9VMQKO6&dib=eyJ2IjoiMSJ9.fPhfo3RkQhlDq-0-5-I1_WKWRgspSl0x1m7UhpKxg8FSM389gVYiMe1sSWPLTjEbZsWEWWJZu-lwWMH0psoD1t_wx21PTK5kffweJWOnyHcG6h9403TuC_AV0jgFlC0V8_jWy4z49wSK2WzDmRTIsOAp9rRoG8mloK5JfaAe6YiQk4SQy-IxgawTaMWUTq6bawp_-h7urf_uufeRe2b2BoW2RdjxU68D4vkSBg9EViI.2NkPVFNLJxEuXM-rFTJ1qS5meUludi4N3cgth8GraWs&dib_tag=se&keywords=M6%2BSteel%2Bthreaded%2Binsert&qid=1725030822&sprefix=m6%2Bsteel%2Bthreaded%2Binsert%2Caps%2C163&sr=8-3&th=1
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Installation Instructions
You will need heat to melt the rivnut into the control arm. I recommend a blowtorch, although a soldering iron may also work.
Keep a small cup of water nearby to cool the hot threads after installation.
Thread the rivnut onto a bolt about one turn, then heat it for approximately 3–5 seconds.
Carefully press the hot rivnut into the bottom of the arm so the threads sit even with the top.
Quickly unthread the bolt and splash the arm with water to set the threads in place.
I also recommend chasing the remaining holes with a drill bit to clean them up.
Your nozzle is now ready for use.
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Fitment
Compatible with Kawasaki:
JS300
300SX
JS400
JS440
JS550
550SX
If you’re unsure about fitment, please send us a message before ordering.
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Testing
Stress Test:
https://youtu.be/8ro0qDmvHG4
Jetski Brothers V8 Stress Test:
https://youtu.be/IERan5mZ-bo
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Manufacturing
Every nozzle is manufactured to order by NAM Performance in Upstate New York.
Each nozzle is individually inspected before shipment to ensure proper fit, quality, and functionality.