Update: Our Privacy Policy has recently been updated on December 6, 2023.

Cookies: To give our customers the best shopping experience, our website uses cookies. By clicking continue, you acknowledge our use of cookies. Learn More

2001 KTM 400 SX 4 Stroke Parts & Accessories

Fits Your Machine

Displaying parts for your 2001 KTM 400 SX 4 Stroke

Change or remove machine

See stock sizes for this machine

  • Front Tire:80/100x21
  • Rear Tire:110/90x19
  • Front Sprocket:14 Tooth
  • Rear Sprocket:50 Tooth
  • Chain:520x118
  • Spark Plug:CR8EK
  • Main jet:175
  • Pilot Jet:48
Tusk Aluminum Pipe Guard$25.99MSRP: $35.99 You save 28%
Rated 4.27 out of five stars.★★★★☆
Bullet Proof Designs Oil Drain Kit$17.99
Rated 4.00 out of five stars.★★★★☆
Vortex 520 Steel Rear Sprocket$58.61MSRP: $68.95 You save 15%
Rated 4.83 out of five stars.★★★★★
Pivot Works Shock Bearing Kit$75.74MSRP: $110.77 You save 32%
Rated 4.16 out of five stars.★★★★☆
Motion Pro Ringer Fork Seal Driver$52.99
Rated 4.88 out of five stars.★★★★★
Enduro Engineering Trail Side Multi Tool$31.99MSRP: $34.95 You save 8%
Rated 4.88 out of five stars.★★★★★
Tusk Solid Typhoon Mud Brake Rotor, Rear$59.99MSRP: $79.99 You save 25%
Rated 5.00 out of five stars.★★★★★
Factory Effex All Grip Seat Cover$42.88MSRP: $49.95 You save 14%
Rated 4.45 out of five stars.★★★★⯪
Polisport Free Flow UFX Front Fender$32.88
Rated 4.57 out of five stars.★★★★⯪
Race Tech Shock Nitrogen Charging Bolt$16.99
Rated 3.64 out of five stars.★★★⯪☆
Pro X Steel Exhaust Valve$39.94MSRP: $52.55 You save 24%
Rated 5.00 out of five stars.★★★★★
Pivot Works Rear Wheel Bearing and Collar Kit$56.79MSRP: $78.73 You save 28%
Rated 4.09 out of five stars.★★★★☆
Tusk Adjustable Fork Seal Driver$38.99MSRP: $54.99 You save 29%
Rated 3.91 out of five stars.★★★★☆
T.M. Designworks Factory Edition 1 Rear Chain Guide$99.95
Rated 4.74 out of five stars.★★★★★
IMS Pro-Series Foot Pegs$118.65
Rated 4.77 out of five stars.★★★★★
Wheeler Whips Clamp On Motorcycle Flag Holder$33.88
Rated 3.80 out of five stars.★★★★☆
Trail Tech Endurance II Speedometer/Computer$129.95
Rated 4.57 out of five stars.★★★★⯪
ASV C6 Series Shorty Clutch Lever$79.88 – $120.00
Rated 3.63 out of five stars.★★★⯪☆
Vortex 520 Aluminum Rear Sprocket$62.99 – $67.99MSRP: $72.95 – $78.95 You save 14%
Rated 4.74 out of five stars.★★★★★
Closeout ItemBikeMaster Sprocket Bolt and Nut Kit$7.99MSRP: $14.16 You save 44%
Rated 4.00 out of five stars.★★★★☆
Pro X OEM Clutch Plate Set Friction$67.21MSRP: $80.97 You save 17%
Rated 4.85 out of five stars.★★★★★
All Balls Front Brake Caliper Bolt Kit$12.34MSRP: $13.71 You save 10%
Rated 4.83 out of five stars.★★★★★
Renthal TwinRing Rear Sprocket$119.88 – $125.96MSRP: $132.95 – $139.95 You save 10%
Rated 4.72 out of five stars.★★★★★
PC Racing Quick Release Filter Skins$20.88
Rated 4.52 out of five stars.★★★★⯪
Primary Drive Alloy Kit & O-Ring Chain$97.57MSRP: $130.93 You save 25%
Rated 4.52 out of five stars.★★★★⯪
All Balls Rear Shock Seal Kit$51.25MSRP: $56.94 You save 10%
Rated 4.68 out of five stars.★★★★★
Tusk Billet Race Foot Pegs Replacement Tooth Kit$6.99MSRP: $9.49 You save 26%
Rated 4.75 out of five stars.★★★★★
Motion Pro Fork Seal Bullet Set$27.50
Rated 4.64 out of five stars.★★★★⯪
Bullet Proof Designs Radiator Guards$250.00
Rated 4.67 out of five stars.★★★★★
KTM Factory Oil Filler Plug$24.99
Rated 4.00 out of five stars.★★★★☆
Factory Effex OEM Swing Arm Decals$12.88MSRP: $14.95 You save 14%
Rated 4.75 out of five stars.★★★★★
ARC Flex Clutch Lever$65.99MSRP: $79.99 You save 18%
Rated 4.71 out of five stars.★★★★★
Warp 9 Titanium Rotor Bolt Kit$19.00
Rated 4.18 out of five stars.★★★★☆
Pro X Aluminum Rear Sprocket$49.12MSRP: $64.63 You save 24%
Rated 4.78 out of five stars.★★★★★
Tusk Rear Brake Pedal Rebuild Kit$34.99MSRP: $39.99 You save 13%
Rated 4.80 out of five stars.★★★★★
ProTaper ACF 1 1/8" Handlebar$135.71
Rated 4.43 out of five stars.★★★★⯪
Rox Speed FX Pro-Offset Elite Block Risers$78.88MSRP: $99.95 You save 21%
Rated 4.81 out of five stars.★★★★★
Kibblewhite Valve Spring Kit$149.88MSRP: $203.99 You save 27%
Rated 4.82 out of five stars.★★★★★
KTM CNC Handlebar Riser Kit$47.99
Rated 4.83 out of five stars.★★★★★
Braking Race Front Brake Rotor$94.88MSRP: $118.95 You save 20%
Rated 4.60 out of five stars.★★★★⯪
Pro X Rear Sprocket Bolt Set$9.39MSRP: $10.92 You save 14%
Rated 4.62 out of five stars.★★★★⯪
Mika Metals 1 1/8" Oversize Handlebars$109.88MSRP: $119.95 You save 8%
Rated 3.86 out of five stars.★★★★☆
Factory Connection Heavy Duty Rubber Shock Bumper$24.95
Rated 5.00 out of five stars.★★★★★
JT Twinstar Hybrid Rear Sprocket$39.95MSRP: $43.75 You save 9%
Rated 5.00 out of five stars.★★★★★
Pro X Clutch Slave Cylinder Repair Kit$30.85MSRP: $36.73 You save 16%
Rated 3.70 out of five stars.★★★★☆
Motion Pro Coolant Recovery Tank$22.50
Rated 4.45 out of five stars.★★★★⯪
Works Connection Front Brake Reservoir Cap$32.88MSRP: $34.95 You save 6%
Rated 4.84 out of five stars.★★★★★
Flatland Racing Radiator Guards$111.99
Rated 4.68 out of five stars.★★★★★
Primary Drive Alloy Kit & X-Ring Chain$109.53MSRP: $137.93 You save 21%
Rated 4.85 out of five stars.★★★★★
KTM OEM Brake Rotor Bolts$10.68MSRP: $12.54 You save 15%
Bullet Proof Designs Easy Fill Funnel$18.99
Pro X Steel Intake Valve$25.76MSRP: $33.89 You save 24%
Rated 5.00 out of five stars.★★★★★
RM Cash ProgramParts Finder