✕

Attention: You are purchasing closed course competition Product(s)

I acknowledge that the product(s) being purchased () was/were designed and intended for closed course competition use only. The product(s) is/are neither designed nor intended for use on public roads or land and is against Federal and State regulations to do so. By proceeding with this purchase, I , agree to only use the product(s) for closed course competition.

If an ECU tune was purchased, please send your unmodified and undamaged OEM ECU to TST Industries, located at 623 Pleasant St, Lake Helen, FL 32744.

* All fields are required Close Aknowledgement
x

FREE SHIPPING OPTION FOR DOMESTIC ORDERS:

U.S. customers are offered a free shipping option for orders with a discounted subtotal greater than $150.00 (before taxes applied). The order's shipment destination must reside within the United States of America. The free shipping options still utilize our standard postage providers and 3rd party shipping companies. Does not apply to large items such as exhausts, stands, and bodywork shipping. All terms and conditions that apply to normal orders will continue to apply to orders with a free shipping option.

NO RESTOCKING FEES:

An item returned within 30 days of purchase, that includes an accurate RMA#, in a perfectly new, unopened condition, and that complies with our other return policies, will not be charged a restocking fee.

MOST QUESTIONS ABOUT THIS PRODUCT CAN BE ANSWERED ON THIS PAGE.

The most common product related questions are answered in the tabs section on this page. Be sure to carefully read through the "Product Details", "In the Box", and "FAQs" tabs. In addition, a lot of our products have comprehensive videos demonstrating installations and product features. You can find those videos in the "Videos" tab.

Note: Some product pages may not have all the tabs mentioned above. Please read through all the available tabs to find the answers to your questions. If you still need assistance, please use the "ASK A QUESTION ABOUT THIS PRODUCT" button below the tabs section.

Products

Sort by: Product Price Default Sales Rating

2018 - 2023

The 2018-2023 Kawasaki Ninja 400 a popular starter bike for new riders and a fun, smaller and nimble machine for more experienced enthusiasts. With a number of our own Ninja 400's in our stable, we have built out dedicated parts packages to improve Ninja 400 on the street, track or both. Shop our extensive line of products developed and produced directly by us, as well as other products from brands we trust. Scroll down this page and you'll find our LED integrated tail light, fender eliminators, closeouts, turn signals, crash protection, performance parts, and much more!
  •  per page

Hyperpack Bundle for Kawasaki Ninja 400 2018-2023

Hyperpack Bundle for Kawasaki Ninja 400 2018-2023

$280.95-$380.95
55
TST WORX Pack for Kawasaki Ninja 400 2018-2023

TST WORX Pack for Kawasaki Ninja 400 2018-2023

$483.93
Total Crash Protection Pack for Kawasaki Ninja 400 2018-2023

Total Crash Protection Pack for Kawasaki Ninja 400 2018-2023

$264.96-$270.95
55
TST Programmable and Sequential LED Integrated Tail Light for Kawasaki Ninja 400 2018-2023 / Z400 2019-2023

TST Programmable and Sequential LED Integrated Tail Light for Kawasaki Ninja 400 2018-2023 / Z400 2019-2023

$134.99
4.635
TST Nexus LED Front Turn Signals for Kawasaki Ninja 400 2018-2023

TST Nexus LED Front Turn Signals for Kawasaki Ninja 400 2018-2023

$74.99-$109.99
TST Fender Eliminator for Kawasaki Ninja 400 2018-2023 / Z400 2019-2023

TST Fender Eliminator for Kawasaki Ninja 400 2018-2023 / Z400 2019-2023

$34.99-$99.99
44
TST Undertail Closeout for Kawasaki Ninja 400 2018-2023 / Z400 2019-2023

TST Undertail Closeout for Kawasaki Ninja 400 2018-2023 / Z400 2019-2023

$45.99
TST LED Rear Pod Turn Signal Bundle for Kawasaki

TST LED Rear Pod Turn Signal Bundle for Kawasaki

$65.97-$95.97
55
TST 2 Pin LED Flasher Relay Gen2-F

TST 2 Pin LED Flasher Relay Gen2-F

$19.99
4.725
TST Brake Light Modulator for Kawasaki OEM Tail Lights

TST Brake Light Modulator for Kawasaki OEM Tail Lights

$49.99
55
TST LED Low-Profile Universal Fit License Plate Light

TST LED Low-Profile Universal Fit License Plate Light

$15.99
4.775
TST WORX Airbox for Kawasaki Ninja 400 2018-2023

TST WORX Airbox for Kawasaki Ninja 400 2018-2023

$849.99-$1099.99
55
TST Frame Slider Crash Protection for Kawasaki Ninja 400 2018-2023

TST Frame Slider Crash Protection for Kawasaki Ninja 400 2018-2023

$145.99
55
TST Voltage Regulator Relocation Kit for Kawasaki Ninja 400 2018-2023

TST Voltage Regulator Relocation Kit for Kawasaki Ninja 400 2018-2023

$4.99
55
TST Mirror Block Off Plates for Select Kawasaki Ninja Motorcycles

TST Mirror Block Off Plates for Select Kawasaki Ninja Motorcycles

$38.99
44
TST Fork Slider Crash Protection for Kawasaki Ninja 400 / Z400 / Ninja 500

TST Fork Slider Crash Protection for Kawasaki Ninja 400 / Z400 / Ninja 500

$62.99
55
Womet-Tech Bar Ends for Various Kawasaki Models

Womet-Tech Bar Ends for Various Kawasaki Models

$29.99
55
Womet-Tech Swingarm Spool Sliders for Select Motorcycles

Womet-Tech Swingarm Spool Sliders for Select Motorcycles

$27.99
4.54
TST M8 Anodized Aluminum Swingarm Spools

TST M8 Anodized Aluminum Swingarm Spools

$25.99-$29.98
4.835
TST Captive Chain Adjuster & GP Lifter System for Kawasaki Ninja 400 / Z400 / Ninja 500

TST Captive Chain Adjuster & GP Lifter System for Kawasaki Ninja 400 / Z400 / Ninja 500

$129.99
55
TST Captive Wheel Spacer Set for Kawasaki Ninja 400 2018-2023 / Ninja 500 2024+

TST Captive Wheel Spacer Set for Kawasaki Ninja 400 2018-2023 / Ninja 500 2024+

$34.99-$69.99
55
Akrapovic Slip-On Exhaust for Kawasaki Ninja 400 2018-2023

Akrapovic Slip-On Exhaust for Kawasaki Ninja 400 2018-2023

$536.45
$596.06 save 10%
Toce Razor Tip Full System Exhaust for Kawasaki Ninja 400 2018-2023

Toce Razor Tip Full System Exhaust for Kawasaki Ninja 400 2018-2023

$999.00
Yoshimura Street ALPHA-T Works Finish Slip-On Exhaust for Kawasaki Ninja 400 / Z400

Yoshimura Street ALPHA-T Works Finish Slip-On Exhaust for Kawasaki Ninja 400 / Z400

$589.00
Yoshimura Race ALPHA-T Works Finish Full System Exhaust for Kawasaki Ninja 400 / Z400

Yoshimura Race ALPHA-T Works Finish Full System Exhaust for Kawasaki Ninja 400 / Z400

$839.00
Graves Motorsports Cat-Back Slip-On Titanium Exhaust for Kawasaki Ninja 400 / Z400 / Ninja 500

Graves Motorsports Cat-Back Slip-On Titanium Exhaust for Kawasaki Ninja 400 / Z400 / Ninja 500

$595.00
Graves Motorsports Cat-Back Slip-On Carbon Fiber Exhaust for Kawasaki Ninja 400 / Z400 / Ninja 500

Graves Motorsports Cat-Back Slip-On Carbon Fiber Exhaust for Kawasaki Ninja 400 / Z400 / Ninja 500

$595.00
TST Emission Block Off Kit for Kawasaki Ninja 400 / Z400 / Ninja 500

TST Emission Block Off Kit for Kawasaki Ninja 400 / Z400 / Ninja 500

$34.99
TST WORX V2 Velocity Stacks for Kawasaki Ninja 400 2018-2023 / Z400 2019-2023

TST WORX V2 Velocity Stacks for Kawasaki Ninja 400 2018-2023 / Z400 2019-2023

$119.99
55
TST WORX Air Filter Replacement for Kawasaki Ninja WORX Airbox

TST WORX Air Filter Replacement for Kawasaki Ninja WORX Airbox

$59.99
MWR Air Filter for Kawasaki Ninja 400 / Z400 / Ninja 500

MWR Air Filter for Kawasaki Ninja 400 / Z400 / Ninja 500

$78.95
MWR Biodegradable Air Filter Cleaner

MWR Biodegradable Air Filter Cleaner

$12.95
MWR Biodegradable Air Filter Oil

MWR Biodegradable Air Filter Oil

$12.95
TST WORX Spec Performance ECU Tune for Kawasaki Ninja 400 2018-2023

TST WORX Spec Performance ECU Tune for Kawasaki Ninja 400 2018-2023

$250.00
FTECU Data-Link ECU Flashing Kit for Kawasaki Ninja 400 2018-2023

FTECU Data-Link ECU Flashing Kit for Kawasaki Ninja 400 2018-2023

$380.00
aRacer RC Mini-X Standalone ECU for Kawasaki Ninja 400 2018-2022

aRacer RC Mini-X Standalone ECU for Kawasaki Ninja 400 2018-2022

$495.00
aRacer RC Super-X Twin Cylinder Standalone ECU for Kawasaki Ninja 400 2018-2022

aRacer RC Super-X Twin Cylinder Standalone ECU for Kawasaki Ninja 400 2018-2022

$895.00
aRacer Pro Link Calibration Cable

aRacer Pro Link Calibration Cable

$89.00
TST WORX 520 Lightweight Aluminum Rear Sprocket for Kawasaki Ninja 400 2018-2023 / Z400 2019-2023

TST WORX 520 Lightweight Aluminum Rear Sprocket for Kawasaki Ninja 400 2018-2023 / Z400 2019-2023

$69.99
Superlite XD Series Chromoly Steel Front Sprocket for Kawasaki - 520 Pitch

Superlite XD Series Chromoly Steel Front Sprocket for Kawasaki - 520 Pitch

$24.95
D.I.D ERT3 Series Gold Plated Non O-Ring Off-Road Race Chain - 520 Pitch

D.I.D ERT3 Series Gold Plated Non O-Ring Off-Road Race Chain - 520 Pitch

$117.60
D.I.D VX3 Pro Street Series X-Ring Sealed Motorcycle Chain - 520 Pitch

D.I.D VX3 Pro Street Series X-Ring Sealed Motorcycle Chain - 520 Pitch

$117.60-$132.00
D.I.D 520 ERT3 Series Clip-Style Master Link

D.I.D 520 ERT3 Series Clip-Style Master Link

$4.95
D.I.D 520 VX2 / VX3 Series Clip Style Master Link

D.I.D 520 VX2 / VX3 Series Clip Style Master Link

$6.95
TST WORX Key Switch Delete for Kawasaki Ninja 400 2018-2023

TST WORX Key Switch Delete for Kawasaki Ninja 400 2018-2023

$69.99
TST WORX Steering Stop for Kawasaki Ninja 400 2018-2023 / Z400 2019-2023

TST WORX Steering Stop for Kawasaki Ninja 400 2018-2023 / Z400 2019-2023

$46.99
55
Zero Gravity Double Bubble Windscreen for Kawasaki Ninja 400 2018-2023 / Ninja 500 2024+

Zero Gravity Double Bubble Windscreen for Kawasaki Ninja 400 2018-2023 / Ninja 500 2024+

$109.95
Zero Gravity Marc 1 Windscreen for Kawasaki Ninja 400 2018-2023 / Ninja 500 2024+

Zero Gravity Marc 1 Windscreen for Kawasaki Ninja 400 2018-2023 / Ninja 500 2024+

$109.95
TST Windscreen Mounting Hardware Kit

TST Windscreen Mounting Hardware Kit

$9.99-$12.99
TST WORX Triple Clamp for Kawasaki Ninja 400 2018-2023

TST WORX Triple Clamp for Kawasaki Ninja 400 2018-2023

$859.99
Andreani Misano Fork Cartridge Kit for Kawasaki Ninja 400 2018-2023

Andreani Misano Fork Cartridge Kit for Kawasaki Ninja 400 2018-2023

$595.00
Ohlins Road & Track Fork Oil 01309-01

Ohlins Road & Track Fork Oil 01309-01

$34.99
Ohlins STX 36 Rear Shock Absorber KA 744 for Kawasaki Ninja 400 / Z400

Ohlins STX 36 Rear Shock Absorber KA 744 for Kawasaki Ninja 400 / Z400

$849.00
TST Race Livery Graphics Kit for Kawasaki Ninja 400 2018-2023

TST Race Livery Graphics Kit for Kawasaki Ninja 400 2018-2023

$144.99
TST Twill Carbon Fiber Front Fender for Kawasaki Ninja 400 2018-2023 / Ninja 500 2024+

TST Twill Carbon Fiber Front Fender for Kawasaki Ninja 400 2018-2023 / Ninja 500 2024+

$149.99
$199.99 save 25%
TechSpec Gripster Tank Grips for Kawasaki Ninja 400 / Z400 / Ninja 500

TechSpec Gripster Tank Grips for Kawasaki Ninja 400 / Z400 / Ninja 500

$76.95
TechSpec Gripster "Spine Style" Center Tank Protector

TechSpec Gripster "Spine Style" Center Tank Protector

$24.95-$31.95
55
Womet-Tech Evos Shorty Levers for Select Kawasaki Motorcycles

Womet-Tech Evos Shorty Levers for Select Kawasaki Motorcycles

$134.99
55
Womet-Tech Evos Lever Anodized Adjuster

Womet-Tech Evos Lever Anodized Adjuster

$15.99
55
Womet-Tech Universal Racing Clutch Lever and Perch with Switch

Womet-Tech Universal Racing Clutch Lever and Perch with Switch

$145.99
Womet-Tech ProGuard Universal Brake Lever Guard

Womet-Tech ProGuard Universal Brake Lever Guard

$89.99
TST Clutch Return Spring for Kawasaki Ninja 400 2018-2023

TST Clutch Return Spring for Kawasaki Ninja 400 2018-2023

$5.99
44
Vesrah RJL Front Brake Pads for Kawasaki Ninja 400 2018-2023

Vesrah RJL Front Brake Pads for Kawasaki Ninja 400 2018-2023

$86.50
Vesrah RJL ZZ Front Race Brake Pads for Kawasaki Ninja 400 2018-2023

Vesrah RJL ZZ Front Race Brake Pads for Kawasaki Ninja 400 2018-2023

$124.50
TST WORX Adjustable Rearset Bracket for Kawasaki Ninja 400 2018-2023 / Ninja 500 2024+

TST WORX Adjustable Rearset Bracket for Kawasaki Ninja 400 2018-2023 / Ninja 500 2024+

$169.99
Motion Pro Handlebar Stop/Start Switch for Kawasaki Ninja 400 2018+

Motion Pro Handlebar Stop/Start Switch for Kawasaki Ninja 400 2018+

$98.99
DBHolders Upper Fairing Stay Bracket for Kawasaki Ninja 400 2018+

DBHolders Upper Fairing Stay Bracket for Kawasaki Ninja 400 2018+

$154.99
TST OEM Rear Brake Reservoir Delete Kit

TST OEM Rear Brake Reservoir Delete Kit

$17.99
4.54
TST Adjustable Fender Eliminator Extension Kit

TST Adjustable Fender Eliminator Extension Kit

$15.99
55
TST Quadrix Universal Sequential LED Pod Turn Signals

TST Quadrix Universal Sequential LED Pod Turn Signals

$59.99
55
TST Quadrix-D LED Universal Tail Light and Sequential Pod Turn Signals

TST Quadrix-D LED Universal Tail Light and Sequential Pod Turn Signals

$69.99
55
TST MECH-EVO Universal LED Pod Turn Signals

TST MECH-EVO Universal LED Pod Turn Signals

$59.99
TST BL6 Universal LED Pod Turn Signals

TST BL6 Universal LED Pod Turn Signals

$39.99
4.885
TST BL6 Universal Sequential LED Pod Turn Signals

TST BL6 Universal Sequential LED Pod Turn Signals

$49.99
TST ECHO Universal LED Pod Turn Signals

TST ECHO Universal LED Pod Turn Signals

$49.99
4.85
TST ECHO Anodized Color Ring Set

TST ECHO Anodized Color Ring Set

$5.99
4.254
TST Accent Washer Kit for 8mm Pod Turn Signals

TST Accent Washer Kit for 8mm Pod Turn Signals

$7.99
TST Pod Signal To License Plate Mounting Kit

TST Pod Signal To License Plate Mounting Kit

$12.99
33
TST Nexus Running Light Connection Kit

TST Nexus Running Light Connection Kit

$21.99
TST Kawasaki Signal Plug Converters 2-to-2

TST Kawasaki Signal Plug Converters 2-to-2

$12.99
55
TST Kawasaki Y-Style Signal Harness Splitter

TST Kawasaki Y-Style Signal Harness Splitter

$14.99
55
TST Load Balancing Resistors

TST Load Balancing Resistors

$4.99
33
Moto-D Angled Motorcycle Valve Stem 11.3 mm

Moto-D Angled Motorcycle Valve Stem 11.3 mm

$24.99
TST Anodized License Plate Mounting Hardware

TST Anodized License Plate Mounting Hardware

$6.99
55
TST Reflective License Plate Mounting Hardware

TST Reflective License Plate Mounting Hardware

$3.99
55
TST MotoSox Pitstrap 2.0

TST MotoSox Pitstrap 2.0

$19.99
TST Banner

TST Banner

$19.99
TST Drawstring Bag

TST Drawstring Bag

$5.99
TST Kickstand Pad

TST Kickstand Pad

$7.99
55
TST Reusable 8" Zip Ties - 20 Pack

TST Reusable 8" Zip Ties - 20 Pack

$8.99
TST Stealth Lanyard

TST Stealth Lanyard

$6.99
TST WORX Garage Motorcycle Mat

TST WORX Garage Motorcycle Mat

$109.99
TST Sticker Pack

TST Sticker Pack

$5.00
TST Industries Emblem Keychain

TST Industries Emblem Keychain

$3.99
TST Industries Logo Keychain

TST Industries Logo Keychain

$3.99
55
TST Industries Paddock Pack

TST Industries Paddock Pack

$122.37
TST Industries TSTeam Merch Bundle

TST Industries TSTeam Merch Bundle

$37.78
TST Swag Bag

TST Swag Bag

$14.99
TST Industries Emblem T-Shirt

TST Industries Emblem T-Shirt

$16.99
TST Industries Emblem Women's Tank Top

TST Industries Emblem Women's Tank Top

$12.99
TST Industries 2 Shirt Mystery Bundle

TST Industries 2 Shirt Mystery Bundle

$19.99
TST Industries Mystery Loot Box

TST Industries Mystery Loot Box

$59.99
TST Industries TSTee Long Sleeve Shirt

TST Industries TSTee Long Sleeve Shirt

$19.99
TST Industries TSTee Kids Shirt

TST Industries TSTee Kids Shirt

$13.99
TST Industries TSTee Shirt

TST Industries TSTee Shirt

$16.99
TST Industries WORX T-Shirt

TST Industries WORX T-Shirt

$16.99
TST Industries Heritage T-Shirt - Limited Edition

TST Industries Heritage T-Shirt - Limited Edition

$19.99
TST Industries Prism T-Shirt

TST Industries Prism T-Shirt

$16.99
TST Industries Cable Knit Beanie

TST Industries Cable Knit Beanie

$19.99
TST Industries Fleece Lined Knit Cap

TST Industries Fleece Lined Knit Cap

$19.99
TST Industries Mesh-Backed Hat

TST Industries Mesh-Backed Hat

$19.99
TST Industries Emblem Pullover Hoodie

TST Industries Emblem Pullover Hoodie

$34.99
TST Industries Zip-Up-Hoodie

TST Industries Zip-Up-Hoodie

$34.99
  •  per page

Your cart

Cart
Cart is empty
Show Items ▾

Authentication

Reviews

TST 2 Pin LED Flasher Relay Gen 2
TST 2 Pin LED Flasher Relay Gen 2
So I purchased this relay along with the integrated taillight setup for the GSX 8R just in case it was needed and nope the integrated tails work perfectly without it so I guess I'll have to save it for when my front blinkers come in and see if I need it for that lol.
Trae
Oct 23, 2024
Read more product reviews
Read all reviews
 
Dear Customer, TST Industries' website uses cookies to allow us to better understand how the site is being used and to enhance your shopping experience. By continuing to use this site, you consent to this policy. Click to learn more.