KTM 300 SX Parts & Accessories

Everything we stock that fits the KTM 300 SX (1993–2026): 31 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 300 SX

Master Cylinder Rebuild Kit — KTM Adventure 640Master Cylinder Rebuild Kit — KTM Adventure 640 $28.31 Master Cylinder Rebuild Kit — Gas-Gas EX250Master Cylinder Rebuild Kit — Gas-Gas EX250 $49.45 Master Cylinder Rebuild Kit — Gas-Gas EX250Master Cylinder Rebuild Kit — Gas-Gas EX250 $37.79 Brake Caliper Rebuild Kit — Gas-Gas EX250 (2022)Brake Caliper Rebuild Kit — Gas-Gas EX250 (2022) $31.23 Brake Caliper Rebuild Kit — Gas-Gas EX250 (2022)Brake Caliper Rebuild Kit — Gas-Gas EX250 (2022) $30.99 Brake Caliper Bolt Kit — Can-Am Outlander 1000Brake Caliper Bolt Kit — Can-Am Outlander 1000 $11.56 Brake Caliper Bolt Kit — Ducati DESMO 450 MXBrake Caliper Bolt Kit — Ducati DESMO 450 MX $15.49 Brake Caliper Piston Kit — Gas-Gas EX250 (2022)Brake Caliper Piston Kit — Gas-Gas EX250 (2022) $47.86 Brake Caliper Piston Kit — Husaberg 450FCBrake Caliper Piston Kit — Husaberg 450FC $43.94 Brake Caliper Piston Kit — Husqvarna FC 250Brake Caliper Piston Kit — Husqvarna FC 250 $26.57 Brake Caliper Rebuild Kit — Husaberg 450FCBrake Caliper Rebuild Kit — Husaberg 450FC $30.99 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 300 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 Clutch Friction Plate Kit — CKF5595EBC Clutch Friction Plate Kit — CKF5595 $179.73 Wheel Bearing Kit — Honda CRF250L (2017-2020) +Wheel Bearing Kit — Honda CRF250L (2017-2020) + $21.01 Wheel Bearing Kit — BMW HP4 (2013-2014) + 302Wheel Bearing Kit — BMW HP4 (2013-2014) + 302 $28.74 Wheel Bearing Kit — Beta RC 4T 450 (2025) + 356Wheel Bearing Kit — Beta RC 4T 450 (2025) + 356 $34.08

Suspension for the KTM 300 SX

Fork Oil Seal Kit — Gas-Gas EC125 (2025) + 173Fork Oil Seal Kit — Gas-Gas EC125 (2025) + 173 $20.19 Fork Oil & Dust Seal Kit — Beta RR 2T 125 (2024)Fork Oil & Dust Seal Kit — Beta RR 2T 125 (2024) $45.76 Fork Bushing Kit — KTM Adventure R Rally 790Fork Bushing Kit — KTM Adventure R Rally 790 $43.59 Suspension Linkage Bearing Kit — Gas-Gas EC125 — 3 Makes — (PN 27-1217)Suspension Linkage Bearing Kit — Gas-Gas EC125 — 3 Makes — (PN 27-1217) $120.65 Suspension Linkage Bearing Kit — KTM EGS 125Suspension Linkage Bearing Kit — KTM EGS 125 $111.63 Swingarm Bearing Kit — Gas-Gas MC85 1714Swingarm Bearing Kit — Gas-Gas MC85 1714 $102.33 Swingarm Bearing Kit — Beta RC 4T 450 (2025) +Swingarm Bearing Kit — Beta RC 4T 450 (2025) + $75.40

Controls for the KTM 300 SX

Clutch Master Cylinder Rebuild Kit — Gas-GasClutch Master Cylinder Rebuild Kit — Gas-Gas $28.31 Clutch Slave Cylinder Kit with Piston — GasGas/Husqvarna/KTM — (PN 18-6014)Clutch Slave Cylinder Kit with Piston — GasGas/Husqvarna/KTM — (PN 18-6014) $73.31 Steering Stem Bearing Kit — Husqvarna FC 250Steering Stem Bearing Kit — Husqvarna FC 250 $44.60 Steering Stem Bearing Kit — Beta RR 2T 125Steering Stem Bearing Kit — Beta RR 2T 125 $44.60

Maintenance for the KTM 300 SX

Twin Air Standard Air Filter — GasGas 125 MC (2024-2026), GasGas 250 ECTwin Air Standard Air Filter — GasGas 125 MC (2024-2026), GasGas 250 EC $36.99

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 300 SX, tell us. Accuracy is the whole point.