1999 KTM 400 SX Parts & Accessories

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Displaying parts for your 1999 KTM 400 SX

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See stock sizes for this machine

  • Front Tire:80/100X21
  • Rear Tire:110/90x19
  • Front Sprocket:14 Tooth
  • Rear Sprocket:50 Tooth
  • Chain:520
  • Spark Plug:D8EA
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Tusk Brake Pad - Sintered Metal$16.99MSRP: $24.99 You save 32%
Rated 4.43 out of five stars.★★★★⯪
Neutron Brake Pad - Sintered Metal$8.99 – $10.99MSRP: $19.99 You save up to 55%
Rated 4.50 out of five stars.★★★★⯪
JT Rear Steel Sprocket$22.99 – $26.99
Rated 4.73 out of five stars.★★★★★
EBC Brake Pad - Sintered Metal "R" Series$36.24 – $39.78MSRP: $38.15 – $41.88 You save 5%
Rated 4.66 out of five stars.★★★★⯪
Tusk Tach/Hour Meter$14.99MSRP: $22.99 You save 35%
Rated 4.63 out of five stars.★★★★⯪
Primary Drive Rear Steel Sprocket$21.99 – $23.99MSRP: $29.99 You save up to 27%
Rated 4.73 out of five stars.★★★★★
Tusk Handlebar Risers$19.99MSRP: $22.99 You save 13%
Rated 4.79 out of five stars.★★★★★
Tusk High Pressure Radiator Cap with Temperature Gauge$24.99MSRP: $29.99 You save 17%
Rated 4.23 out of five stars.★★★★☆
Primary Drive Sprocket Bolt and Nut Kit$6.99MSRP: $9.99 You save 30%
Rated 4.75 out of five stars.★★★★★
Twin Air - Air Box Washing Cover$35.99MSRP: $45.95 You save 22%
Rated 4.75 out of five stars.★★★★★
Primary Drive Rear Aluminum Sprocket$39.99MSRP: $49.99 You save 20%
Rated 4.69 out of five stars.★★★★★
Tusk Magnetic Drain Bolt$7.49MSRP: $11.95 You save 37%
Rated 4.72 out of five stars.★★★★★
Acerbis Rear Fender$24.88MSRP: $29.95 You save 17%
Rated 4.75 out of five stars.★★★★★
Tusk Stainless Steel Typhoon Brake Rotor, Rear$34.99MSRP: $59.99 You save 42%
Rated 4.83 out of five stars.★★★★★
Tusk Rear Aluminum Sprocket$39.99MSRP: $49.99 You save 20%
Rated 4.67 out of five stars.★★★★★
NGK Standard Sparkplug$3.49MSRP: $3.95 You save 12%
Rated 4.89 out of five stars.★★★★★
JT Racelite Aluminum Rear Sprocket$24.88 – $32.88MSRP: $27.20 – $35.93 You save up to 8%
Rated 4.89 out of five stars.★★★★★
Tusk Oil Filler Plug$9.99MSRP: $14.99 You save 33%
Rated 4.84 out of five stars.★★★★★
Tusk Steering Stem Bearing Kit$29.99MSRP: $36.99 You save 19%
Rated 4.57 out of five stars.★★★★⯪
Tusk Spoke Torque Wrench Kit$89.99MSRP: $109.99 You save 18%
Rated 4.70 out of five stars.★★★★★
Tusk Stainless Steel Typhoon Brake Rotor, Front$34.99MSRP: $59.99 You save 42%
Rated 4.81 out of five stars.★★★★★
Tusk T-10 Aluminum 7/8" Handlebar$37.99MSRP: $52.95 You save 28%
Rated 4.43 out of five stars.★★★★⯪
Tusk Billet Aluminum Gas Cap$29.99MSRP: $34.99 You save 14%
Rated 4.71 out of five stars.★★★★★
Pro X Brake Pad - Sintered Metal$27.33MSRP: $33.33 You save 18%
Rated 4.35 out of five stars.★★★★⯪
Dirt Tricks Zirconium Rear Sprocket$125.99MSRP: $139.95 You save 10%
Rated 4.83 out of five stars.★★★★★
Acerbis Side Panels$39.99MSRP: $52.95 You save 24%
Rated 4.67 out of five stars.★★★★★
Tusk Spark Plug Wrench$5.99MSRP: $7.99 You save 25%
Rated 4.77 out of five stars.★★★★★
Attack Graphics Number Plate Backgrounds$39.99MSRP: $44.99 You save 11%
Rated 4.67 out of five stars.★★★★★
EBC Brake Pad - Carbon "X" Series$34.67 – $36.25
Rated 4.45 out of five stars.★★★★⯪
Tusk Aluminum Tire Iron with Axle Wrench$16.99MSRP: $22.99 You save 26%
Rated 4.66 out of five stars.★★★★⯪
All Balls Steering Stem Bearing Kit$35.55MSRP: $39.50 You save 10%
Rated 4.60 out of five stars.★★★★⯪
EBC Brake Pad - Sintered Double H$43.41
Rated 4.74 out of five stars.★★★★★
Tusk EZ Oil Drain Tool$9.99MSRP: $13.99 You save 29%
Rated 4.07 out of five stars.★★★★☆
All Balls Rear Brake Master Cylinder Rebuild Kit$22.41MSRP: $24.90 You save 10%
Rated 4.83 out of five stars.★★★★★
Tusk Rear Shock Seal Kit$42.99MSRP: $46.99 You save 9%
Rated 4.85 out of five stars.★★★★★
Acerbis Chain Guide$22.88MSRP: $29.95 You save 24%
Rated 4.53 out of five stars.★★★★⯪
Bolt KTM Copper Drain Plug Washer Kit$4.99
Rated 4.86 out of five stars.★★★★★
Tusk Racer Axle Wrench$14.99MSRP: $17.99 You save 17%
Rated 4.52 out of five stars.★★★★⯪
Polisport Front Number Plate$19.88MSRP: $29.99 You save 34%
Rated 4.80 out of five stars.★★★★★
Shock Sox Fork Seal Guards$23.95 – $26.95MSRP: $26.99 – $28.99 You save up to 11%
Rated 4.29 out of five stars.★★★★☆
Polisport Front Fender$22.88MSRP: $29.99 You save 24%
Rated 4.61 out of five stars.★★★★⯪
Tusk Nyloc Axle Nut$12.99MSRP: $19.99 You save 35%
Rated 4.71 out of five stars.★★★★★
Polisport Chain Guide$19.75MSRP: $21.99 You save 10%
Rated 4.37 out of five stars.★★★★⯪
Dirt Tricks Front Sprocket$40.99MSRP: $44.95 You save 9%
Rated 4.88 out of five stars.★★★★★
Bolt Hub-Savers Double Locked Sprocket Fastening Kit$10.99MSRP: $11.99 You save 8%
Rated 4.86 out of five stars.★★★★★
All Balls Front Brake Caliper Rebuild Kit$24.71MSRP: $27.45 You save 10%
Rated 4.88 out of five stars.★★★★★
EBC MXS Brake Pad - Sintered Metal$44.13
Rated 4.56 out of five stars.★★★★⯪
Tusk Skid Plate Foam$10.95 – $11.95MSRP: $14.95 You save up to 27%
Rated 4.63 out of five stars.★★★★⯪
Galfer Brake Pad - Sintered Double H$33.75MSRP: $37.50 You save 10%
Rated 4.62 out of five stars.★★★★⯪
Tusk Front Brake Caliper Rebuild Kit$18.99MSRP: $24.99 You save 24%
Rated 4.89 out of five stars.★★★★★
Tusk Aluminum Tire Iron with Axle Wrench Kit$30.99MSRP: $45.98 You save 33%
Rated 4.37 out of five stars.★★★★⯪
Renthal Aluminum 7/8" Handlebar$94.88 – $104.88
Rated 4.84 out of five stars.★★★★★
Supersprox Rear Steel Sprocket$49.46 – $53.96MSRP: $54.95 – $59.95 You save 10%
Rated 4.74 out of five stars.★★★★★
ProTaper SE 7/8" Handlebar$71.20 – $71.24MSRP: $74.95 – $74.99 You save 5%
Rated 4.79 out of five stars.★★★★★
Tusk Front Brake Pin Kit$5.99MSRP: $9.99 You save 40%
Rated 4.66 out of five stars.★★★★★
ASV F4 Series Brake Lever$95.00
Rated 4.85 out of five stars.★★★★★
KTM OEM Brake Pads$67.96MSRP: $79.95 You save 15%
Tusk Motorcycle Flag Mount Adaptor$9.99MSRP: $10.99 You save 9%
Rated 3.08 out of five stars.★★★☆☆
JT Self Cleaning Competition Brake Rotor, Rear$41.19MSRP: $46.25 You save 11%
Rated 4.00 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.★★★★★
JT Self Cleaning Competition Brake Rotor, Front$41.16MSRP: $46.25 You save 11%
Rated 4.50 out of five stars.★★★★⯪
Rox Speed FX 2" Handlebar Risers$76.88 – $84.88MSRP: $95.95 – $101.95 You save up to 20%
Rated 4.83 out of five stars.★★★★★
Supersprox Stealth Rear Sprocket$107.96MSRP: $119.95 You save 10%
Rated 4.77 out of five stars.★★★★★
Motion Pro Rear Sprocket Bolt and Nut Fastening Kit$12.99
Rated 4.91 out of five stars.★★★★★
Tusk Swing Arm Chain Adjuster Bolt Repair Kit$15.99MSRP: $29.99 You save 47%
Rated 4.33 out of five stars.★★★★⯪
Tusk Universal Big Bar Clamp Kit$29.99MSRP: $35.99 You save 17%
Rated 4.65 out of five stars.★★★★⯪
All Balls Brake Caliper Piston Kit$32.36MSRP: $35.95 You save 10%
Rated 4.78 out of five stars.★★★★★
Acerbis Upper Fork Guards$19.88MSRP: $31.95 You save 38%
Rated 4.62 out of five stars.★★★★⯪
Tusk Universal Big Bar Clamp and Bar Kit$72.99 – $192.88MSRP: $101.94 – $207.94 You save up to 28%
Rated 4.47 out of five stars.★★★★⯪
Fastway Evo 4 Foot Pegs$167.90
Rated 4.77 out of five stars.★★★★★
Polisport Side Panels$36.88MSRP: $54.99 You save 33%
Rated 4.28 out of five stars.★★★★☆
Mylers High Pressure Radiator Cap$17.99MSRP: $20.00 You save 10%
Rated 4.76 out of five stars.★★★★★
Braking Race Sintered Compound CM46 Brake Pads$39.88MSRP: $47.95 You save 17%
Rated 4.63 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.★★★★★
Factory Effex All Grip Seat Cover$42.88MSRP: $49.95 You save 14%
Rated 4.45 out of five stars.★★★★⯪
Race Tech Shock Nitrogen Charging Bolt$16.99
Rated 3.64 out of five stars.★★★⯪☆
Wheeler Whips Clamp On Motorcycle Flag Holder$33.88
Rated 3.80 out of five stars.★★★★☆
Tusk Spoke Torque Wrench Replacement Head$11.99MSRP: $14.99 You save 20%
Rated 4.43 out of five stars.★★★★⯪
Renthal TwinRing Rear Sprocket$125.96MSRP: $139.95 You save 10%
Rated 4.72 out of five stars.★★★★★
Bullet Proof Designs Oil Drain Kit$17.99
Rated 4.00 out of five stars.★★★★☆
Tusk Solid Typhoon Mud Brake Rotor, Front$59.99MSRP: $79.99 You save 25%
Rated 4.67 out of five stars.★★★★★
Vortex 520 Steel Rear Sprocket$58.61MSRP: $68.95 You save 15%
Rated 4.83 out of five stars.★★★★★
All Balls Rear Shock Seal Kit$51.25MSRP: $56.94 You save 10%
Rated 4.68 out of five stars.★★★★★
Enduro Engineering Trail Side Multi Tool$31.99MSRP: $34.95 You save 8%
Rated 4.88 out of five stars.★★★★★
KTM OEM Brake Rotor$111.72 – $118.55MSRP: $131.43 – $139.47 You save 15%
JT Twinstar Hybrid Rear Sprocket$39.95MSRP: $43.75 You save 9%
Rated 5.00 out of five stars.★★★★★
Pro X Aluminum Rear Sprocket$49.12MSRP: $64.63 You save 24%
Rated 4.78 out of five stars.★★★★★
Pro X Rear Sprocket Bolt Set$9.39MSRP: $10.92 You save 14%
Rated 4.62 out of five stars.★★★★⯪
EBC CX Extreme Rotor, Rear$84.70
Rated 4.60 out of five stars.★★★★⯪
Odi Podium 7/8" Handlebars$76.88 – $79.88MSRP: $84.95 – $89.95 You save up to 11%
Rated 5.00 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.★★★★★
Polisport Free Flow UFX Front Fender$32.88
Rated 4.57 out of five stars.★★★★⯪
Warp 9 Titanium Sprocket Bolt Set$56.99
Rated 4.10 out of five stars.★★★★☆
Mika Metals 7/8" Handlebars$79.88MSRP: $84.95 You save 6%
Rated 4.18 out of five stars.★★★★☆
Motion Pro Coolant Recovery Tank$22.50
Rated 4.45 out of five stars.★★★★⯪
KTM Spark Plug Holder$4.99
Rated 3.87 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.★★★★☆
Galfer Wave Brake Rotor, Rear$128.61MSRP: $142.90 You save 10%
Rated 4.83 out of five stars.★★★★★
Attack Graphics Renegade Front Fender Decal$8.99MSRP: $12.99 You save 31%
Rated 4.67 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.★★★★★
EBC Brake Rotor, Rear$87.47
Rated 4.31 out of five stars.★★★★☆
Polisport SM Fender Supermotard UniversalFront Fender$12.88 – $22.88MSRP: $29.99 You save up to 57%
E Line Carbon Fiber Upper Fork Guards$74.95
Rated 4.74 out of five stars.★★★★★
Fastway Evo Air Motorcycle Foot Pegs Kit$222.90
Rated 4.16 out of five stars.★★★★☆
KTM OEM Sprocket Bolt And Nut Kit$26.70MSRP: $31.38 You save 15%
Braking Race Rear Brake Rotor$89.88MSRP: $107.95 You save 17%
Rated 4.67 out of five stars.★★★★★
KTM Factory Oil Filler Plug$24.99
Rated 4.00 out of five stars.★★★★☆
Polisport Upper Fork Guards$15.88 – $21.99MSRP: $27.99 – $32.95 You save up to 43%
Rated 4.67 out of five stars.★★★★★
Supersprox Rear Aluminum Sprocket$62.96 – $67.46MSRP: $69.95 – $74.95 You save 10%
Rated 4.65 out of five stars.★★★★⯪
Polisport SM Line Supermotard UFX Free Flow Front Fender$27.88MSRP: $32.99 You save 15%
Rated 4.60 out of five stars.★★★★⯪
Galfer Brake Pad - Carbon$32.50MSRP: $36.11 You save 10%
Rated 4.27 out of five stars.★★★★☆
Attack Graphics Renegade Swing Arm Decal$10.99MSRP: $13.99 You save 21%
Dirt Tricks Brake Rotor, Rear$119.00MSRP: $129.95 You save 8%
Galfer Wave Brake Rotor, Front$98.10MSRP: $109.00 You save 10%
Rated 4.92 out of five stars.★★★★★
Motion Pro T-6 Combo Lever Set$68.99 – $84.99
Rated 4.72 out of five stars.★★★★★
All Balls Rear Wheel Bearing Upgrade Kit$66.40MSRP: $73.78 You save 10%
Rated 3.50 out of five stars.★★★⯪☆
Dirt Tricks Rear Sprocket$111.99MSRP: $123.95 You save 10%
Rated 5.00 out of five stars.★★★★★
ProTaper 2.3 Platform Foot Pegs Hardware Kit$9.69MSRP: $10.20 You save 5%
Rated 5.00 out of five stars.★★★★★
Motion Pro T-6 Combo Lever$39.99
Rated 4.87 out of five stars.★★★★★
Dirt Tricks Brake Rotor, Front$119.00MSRP: $129.95 You save 8%
Rated 5.00 out of five stars.★★★★★
EBC Brake Rotor, Front$93.95MSRP: $98.90 You save 5%
Rated 4.39 out of five stars.★★★★⯪
Fastway Air Ext Motorcycle Foot Pegs Kit$301.94
Rated 4.51 out of five stars.★★★★⯪
DRC Fork Seal Driver Kit$84.95
Rated 4.50 out of five stars.★★★★⯪
P3 Carbon Skid Plate Foam$12.95
Rated 4.50 out of five stars.★★★★⯪
Pivot Works Rear Wheel Bearing Upgrade Kit$66.88MSRP: $91.06 You save 27%
Rated 3.50 out of five stars.★★★⯪☆
Fasst Spoke Wrench Head$20.99
Rated 4.89 out of five stars.★★★★★
Fastway Evo Ext Foot Pegs$244.00
Rated 4.00 out of five stars.★★★★☆
G2 Ergonomics Rear Brake Caliper Cooler$39.95
Pivot Works Rear Wheel Bearing Upgrade Kit Replacement Bearings$20.88MSRP: $25.96 You save 20%
Rated 4.50 out of five stars.★★★★⯪
EBC CX Extreme Rotor, Front$93.87
Rated 4.20 out of five stars.★★★★☆
Tusk Neoprene PDS Rear Shock Bearing Protector$7.99MSRP: $11.99 You save 33%
Rated 5.00 out of five stars.★★★★★
Galfer Semi-Metallic Compound Brake Pad$32.50MSRP: $36.11 You save 10%
Rated 5.00 out of five stars.★★★★★
Race Tech Nitrogen Gauge$143.99MSRP: $159.99 You save 10%
Rated 5.00 out of five stars.★★★★★
Klutchbox Original Bar Pad$64.95
Rated 5.00 out of five stars.★★★★★
Excel Spoke Wrench Head$13.99
Rated 4.83 out of five stars.★★★★★
Warp 9 Titanium Brake Banjo Bolt Kit$39.00
Rated 3.00 out of five stars.★★★☆☆
Dirt Tricks Solid Brake Rotor, Rear$119.00MSRP: $129.95 You save 8%
Fasst Impact Adventure Pegs$259.99
Rated 5.00 out of five stars.★★★★★
Trail Tech Vapor Triple Clamp Mount Protector$69.95
Rated 3.91 out of five stars.★★★★☆
Tusk Piston Ring Compressor$22.99MSRP: $29.99 You save 23%
Rated 5.00 out of five stars.★★★★★
Mika Metals Pro Series Hybrid 7/8" Oversized Handlebars$109.88MSRP: $119.95 You save 8%
Rated 5.00 out of five stars.★★★★★
Nihilo Concepts Ny-Lock Rear Axle Nut$39.99
Rated 4.73 out of five stars.★★★★★
DP Brakes Standard Sintered Metal Pads$37.95
Rated 5.00 out of five stars.★★★★★
Motion Pro T-6 Combo Lever 3/8" Drive Adapter$31.99
Rated 4.33 out of five stars.★★★★⯪
Rox Speed FX 3 1/2" ATV Handlebar Risers$94.88MSRP: $110.95 You save 14%
Rated 5.00 out of five stars.★★★★★
Trail Tech Voyager GPS/Computer Protector$129.95
Rated 4.86 out of five stars.★★★★★
Fastway Adventure Motorcycle Foot Pegs Kit$301.94
Rated 4.00 out of five stars.★★★★☆
Warp 9 Titanium Rear Axle$239.00
Rated 5.00 out of five stars.★★★★★
Race Tech WP Shock Nitrogen Charging Tool$284.99
Rated 5.00 out of five stars.★★★★★
All Balls Rear Wheel Bearing Upgrade Kit Replacement Bearings$21.88MSRP: $24.31 You save 10%
Rated 3.25 out of five stars.★★★☆☆
ProTaper 2.3 Platform Foot Pegs$224.19MSRP: $235.99 You save 5%
Rated 4.33 out of five stars.★★★★⯪
Winderosa Top End Gasket Set (Closeout)$9.88MSRP: $75.16 You save 87%
Rated 2.33 out of five stars.★★⯪☆☆
Tusk Titanium Sprocket Bolt Kit$39.99MSRP: $48.99 You save 18%
Rated 5.00 out of five stars.★★★★★
XC Gear Spurz Foot Pegs$289.00
Rated 5.00 out of five stars.★★★★★
KTM Neoprene PDS Rear Shock Bearing Protector$18.99
Rated 4.09 out of five stars.★★★★☆
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