KTM 400 SX Parts & Accessories

Everything we stock that fits the KTM 400 SX (2000–2002): 24 parts, each verified against manufacturer fitment data, grouped by category. Prices and stock are live. Not sure on year or trim? Use the bike finder to confirm your exact match.

Brakes for the KTM 400 SX

Master Cylinder Rebuild Kit — Gas-Gas ES 700Master Cylinder Rebuild Kit — Gas-Gas ES 700 $28.07 Master Cylinder Rebuild Kit — Husaberg 450FCMaster Cylinder Rebuild Kit — Husaberg 450FC $28.31 Brake Caliper Rebuild Kit — Husaberg 450FCBrake Caliper Rebuild Kit — Husaberg 450FC $30.99 Brake Caliper Rebuild Kit — KTM EXC 125Brake Caliper Rebuild Kit — KTM EXC 125 $31.23 Brake Caliper Bolt Kit — Ducati DESMO 450 MXBrake Caliper Bolt Kit — Ducati DESMO 450 MX $15.49 Brake Caliper Rebuild Kit — KTM Adventure 390Brake Caliper Rebuild Kit — KTM Adventure 390 $31.23 Brake Caliper Piston Kit — Husaberg 450FCBrake Caliper Piston Kit — Husaberg 450FC $43.94 JT Sprockets Rotor — 220mm — Husqvarna/KTM Rear (JTD6025SC01)JT Sprockets Rotor — 220mm — Husqvarna/KTM Rear (JTD6025SC01) $38.99 JT Sprockets Rotor — 260mm — Husqvarna/KTM Front (JTD6026SC01)JT Sprockets Rotor — 260mm — Husqvarna/KTM Front (JTD6026SC01) $38.99

Drivetrain for the KTM 400 SX

Upgraded Wheel Bearing Kit — Husaberg 390FEUpgraded Wheel Bearing Kit — Husaberg 390FE $83.25 Wheel Bearing Kit — Gas-Gas MC85 1714Wheel Bearing Kit — Gas-Gas MC85 1714 $27.43 EBC Plate Kit — CK5602EBC Plate Kit — CK5602 $156.67 Wheel Bearing Kit — Ducati DESMO 450 MX (2026) +Wheel Bearing Kit — Ducati DESMO 450 MX (2026) + $32.65 Wheel Bearing Kit — BMW HP4 (2013-2014) + 302Wheel Bearing Kit — BMW HP4 (2013-2014) + 302 $28.74

Suspension for the KTM 400 SX

Fork Bushing Kit — KTM EXC 125 (2000-2001) + 29Fork Bushing Kit — KTM EXC 125 (2000-2001) + 29 $63.54 Fork Oil Seal Kit — BMW F800GS (2013-2017) + 101Fork Oil Seal Kit — BMW F800GS (2013-2017) + 101 $19.12 Fork Dust Seal Kit — BMW F800GS (2013-2017) +Fork Dust Seal Kit — BMW F800GS (2013-2017) + $21.01 Swingarm Bearing Kit — Gas-Gas MC85 1714Swingarm Bearing Kit — Gas-Gas MC85 1714 $102.33 Fork Oil & Dust Seal Kit — Gas-Gas EC125 (2003)Fork Oil & Dust Seal Kit — Gas-Gas EC125 (2003) $39.78

Controls for the KTM 400 SX

Clutch Master Cylinder Rebuild Kit — HusabergClutch Master Cylinder Rebuild Kit — Husaberg $39.82 Clutch Slave Cylinder Rebuild Kit — KTM EXC 250Clutch Slave Cylinder Rebuild Kit — KTM EXC 250 $44.89 Motion Pro Clutch Lever — 14-9001Motion Pro Clutch Lever — 14-9001 $51.99 Steering Stem Bearing Kit — Beta RR 2T 125Steering Stem Bearing Kit — Beta RR 2T 125 $44.60

Protection for the KTM 400 SX

All Balls Racing Chain Roller — KTMAll Balls Racing Chain Roller — KTM $23.16

Fitment is anchored on the manufacturer's own application data and verified before it goes live. If you spot anything that looks off for your KTM 400 SX, tell us. Accuracy is the whole point.