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2003 Kawasaki KLX 400 Parts & Accessories

32 parts available 12 Performance 11 Maintenance 9 Accessories
2003 Kawasaki KLX 400

About the 2003 Kawasaki KLX 400

Find quality aftermarket parts and accessories for your 2003 Kawasaki KLX 400. Dream Cycles Canada carries a wide selection of performance upgrades, maintenance parts, and accessories to keep your ride running strong through every Canadian season. Browse our curated selection below to find exactly what you need.

Performance Upgrades 12

View All Engine & Performance → View All Engine & Performance → View All Suspension → View All Fuel & Air →
Cylinder Works Cylinders and Cylinder Kits Cylinder Works Cylinders and Cylinder Kits
Fits
CYLINDER WORKS Cylinder Works Cylinders and Cylinder Kits
$150.95
1 of 37 options fit
In Stock
See Options
Dynojet Power Commander 6 Fuel Injection Module Dynojet Power Commander 6 Fuel Injection Module
Fits
WISECO PISTON Dynojet Power Commander 6 Fuel Injection Module
$5.95
1 of 1810 options fit
In Stock
See Options
Factory Links OEM Series Shock Bearing Kits Factory Links OEM Series Shock Bearing Kits
Fits
FACTORY LINKS Factory Links OEM Series Shock Bearing Kits
$36.95
1 of 22 options fit
In Stock
See Options
Factory Links Swingarm Bearing Kits Factory Links Swingarm Bearing Kits
Fits
FACTORY LINKS Factory Links Swingarm Bearing Kits
$139.95
1 of 36 options fit
In Stock
See Options
Hot Cams Valve Shim Kit and Refill Packages Hot Cams Valve Shim Kit and Refill Packages
Fits
HOT CAMS Hot Cams Valve Shim Kit and Refill Packages
$196.95
1 of 90 options fit
In Stock
See Options
K&S Carburetor Air Cut-Off Valve Sets K&S Carburetor Air Cut-Off Valve Sets
Fits
K&S TECHNOLOGIES K&S Carburetor Air Cut-Off Valve Sets
$50.95
1 of 4 options fit
In Stock
See Options
Moose Offroad Swingarm Bearing Kits Moose Offroad Swingarm Bearing Kits
Fits
Moose Racing Moose Offroad Swingarm Bearing Kits
$130.95
1 of 33 options fit
In Stock
See Options
Race Tech Fork Springs Race Tech Fork Springs
Fits
RACE TECH Race Tech Fork Springs
$268.95
1 of 28 options fit
In Stock
See Options
Race Tech Rear Shock Seals Race Tech Rear Shock Seals
Fits
RACE TECH Race Tech Rear Shock Seals
$77.95
1 of 11 options fit
In Stock
See Options
Race Tech Rear Shock Springs Race Tech Rear Shock Springs
Fits
RACE TECH Race Tech Rear Shock Springs
$268.95 - $303.95
5 of 25 options fit
In Stock
See Options
Race Tech Shock Reservoir Bladders Race Tech Shock Reservoir Bladders
Fits
RACE TECH Race Tech Shock Reservoir Bladders
$46.95
1 of 6 options fit
In Stock
See Options
Vertex Piston Kits, Rings, Wrist Pins and Circlips Vertex Piston Kits, Rings, Wrist Pins and Circlips
Fits
VERTEX Vertex Piston Kits, Rings, Wrist Pins and Circlips
$5.95
1 of 129 options fit
In Stock
See Options

Maintenance Parts 11

View All Tires & Wheels → View All Brakes → View All Maintenance & Tools → View All Electrical → View All Drivetrain →
All Balls Racing Wheel Bearing and Seal Kits All Balls Racing Wheel Bearing and Seal Kits
Fits
Moose Racing All Balls Racing Wheel Bearing and Seal Kits
$34.95
1 of 197 options fit
In Stock
See Options
Brake Pads and Shoes by DP Brakes Brake Pads and Shoes by DP Brakes
Fits
Moose Racing Brake Pads and Shoes by DP Brakes
$38.95 - $78.95
18 of 91 options fit
In Stock
See Options
Factory Links Front Bearing Packs Factory Links Front Bearing Packs
Fits
FACTORY LINKS Factory Links Front Bearing Packs
$76.95 - $143.95
8 of 140 options fit
In Stock
See Options
Factory Links Low-Friction Wheel Bearing Kits Factory Links Low-Friction Wheel Bearing Kits
Fits
FACTORY LINKS Factory Links Low-Friction Wheel Bearing Kits
$49.95
1 of 179 options fit
In Stock
See Options
HiFloFiltro Air Filters HiFloFiltro Air Filters
Fits
No Toil HiFloFiltro Air Filters
$63.95
1 of 217 options fit
In Stock
See Options
High Performance Lithium Max Batteries High Performance Lithium Max Batteries
Fits
BS BATTERY High Performance Lithium Max Batteries
$229.95
3 of 20 options fit
In Stock
See Options
JT Sprockets for Yamaha Motorcycles JT Sprockets for Yamaha Motorcycles
Fits
JT SPROCKETS JT Sprockets for Yamaha Motorcycles
$46.95
1 of 700 options fit
Out of Stock
See Options
Moose Racing Aluminum Chain Guides Moose Racing Aluminum Chain Guides
Fits
Moose Racing Moose Racing Aluminum Chain Guides
$26.95 - $91.95
2 of 7 options fit
In Stock
See Options
Renthal Twinring Heavy-Duty Rear Sprockets Renthal Twinring Heavy-Duty Rear Sprockets
Fits
RENTHAL Renthal Twinring Heavy-Duty Rear Sprockets
$223.95
1 of 26 options fit
In Stock
See Options
SLA Factory-Activated AGM Maintenance-Free Batteries SLA Factory-Activated AGM Maintenance-Free Batteries
Fits
BS BATTERY SLA Factory-Activated AGM Maintenance-Free Batteries
$71.95
3 of 73 options fit
In Stock
See Options
Yuasa and Parts Canada Motorcycle Batteries Yuasa and Parts Canada Motorcycle Batteries
Fits
Yuasa Yuasa and Parts Canada Motorcycle Batteries
$71.95
2 of 1013 options fit
In Stock
See Options

Accessories 9

View All Bodywork & Protection → View All Lighting & Signals → View All Controls & Cockpit →
Acerbis Replacement Airbox Mud Flaps for KTM Acerbis Replacement Airbox Mud Flaps for KTM
Fits
ACERBIS Acerbis Replacement Airbox Mud Flaps for KTM
$49.95 - $236.95
10 of 746 options fit
In Stock
See Options
Acerbis VSL Lumen-X Headlights Acerbis VSL Lumen-X Headlights
Fits
ACERBIS Acerbis VSL Lumen-X Headlights
$265.95
2 of 2 options fit
In Stock
See Options
Barnett Clutch Kits, Discs and Springs Barnett Clutch Kits, Discs and Springs
Fits
Barnett Barnett Clutch Kits, Discs and Springs
$30.95 - $389.95
6 of 193 options fit
In Stock
See Options
Factory Links Steering Stem Bearing Kits Factory Links Steering Stem Bearing Kits
Fits
FACTORY LINKS Factory Links Steering Stem Bearing Kits
$80.95
1 of 35 options fit
In Stock
See Options
Kibblewhite Viton Valve Seal 0926-3164 Kibblewhite Viton Valve Seal 0926-3164
Fits
KIBBLEWHITE Kibblewhite Viton Valve Seal 0926-3164
$22.95
In Stock
Moose Offroad Hybrid Footpegs Moose Offroad Hybrid Footpegs
Fits
Moose Racing Moose Offroad Hybrid Footpegs
$228.95
1 of 16 options fit
In Stock
See Options
Moose Racing Aluminum Skid Plates Moose Racing Aluminum Skid Plates
Fits
Moose Racing Moose Racing Aluminum Skid Plates
$294.95
1 of 33 options fit
In Stock
See Options
Moose Racing Skid Plate Replacement Mounting Hardware Moose Racing Skid Plate Replacement Mounting Hardware
Fits
Moose Racing Moose Racing Skid Plate Replacement Mounting Hardware
$19.95
1 of 3 options fit
In Stock
See Options
Pivot Works Steering Stem Bearing Kits Pivot Works Steering Stem Bearing Kits
Fits
PIVOT WORKS Pivot Works Steering Stem Bearing Kits
$131.95
1 of 7 options fit
In Stock
See Options

Frequently Asked Questions About the 2003 Kawasaki KLX 400

Regular maintenance items include oil filters, air filters, brake pads, and spark plugs. Check your owner's manual for the recommended service intervals specific to your model.

Popular first upgrades include an aftermarket exhaust system for better sound and performance, an upgraded air filter for improved airflow, and suspension upgrades for a better ride quality.

Proper winter storage includes stabilizing the fuel, changing the oil, removing the battery and keeping it on a tender, and using a quality cover. Consider a full service before storing so it's ready to ride in spring.

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Browse our full catalog of rides or use the vehicle selector to find parts that fit your machine.

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