1999 KTM 125 SX Parts & Accessories

Fits Your Machine

Displaying parts for your 1999 KTM 125 SX

See stock sizes for this machine

  • Front Tire:80/100x21
  • Rear Tire:100/90X19
  • Front Sprocket:13 Tooth
  • Rear Sprocket:50 Tooth
  • Chain:520x118
  • Spark Plug:R6918B-8
  • Main jet:190
  • Pilot Jet:48
Vertex Piston Kit Standard$140.21MSRP: $164.95 You save 15%
Rated 4.76 out of five stars.★★★★★
Tusk Spoke Torque Wrench Kit$89.99MSRP: $109.99 You save 18%
Rated 4.70 out of five stars.★★★★★
Tusk Steering Stem Bearing Kit$29.99MSRP: $36.99 You save 19%
Rated 4.57 out of five stars.★★★★⯪
Tusk Swing Arm Bearing Kit$72.99MSRP: $81.99 You save 11%
Rated 4.95 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.★★★★★
Primary Drive Chain Roller$14.99MSRP: $19.99 You save 25%
Rated 4.09 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.★★★★⯪
Flex-Hone Cylinder Ball-Hone$45.71
Rated 4.93 out of five stars.★★★★★
Tusk Billet Race Foot Pegs$64.99MSRP: $79.99 You save 19%
Rated 4.64 out of five stars.★★★★⯪
Dirt Tricks Zirconium Rear Sprocket$125.99MSRP: $139.95 You save 10%
Rated 4.83 out of five stars.★★★★★
Lexx Swivel Exhaust Spring$2.99MSRP: $3.99 You save 25%
Rated 5.00 out of five stars.★★★★★
Acerbis Side Panels$39.99MSRP: $52.95 You save 24%
Rated 4.67 out of five stars.★★★★★
Odi V2 Emig 2.0 MX Lock-On Grips$26.99MSRP: $29.95 You save 10%
Rated 4.67 out of five stars.★★★★★
Tusk Spark Plug Wrench$8.99MSRP: $10.99 You save 18%
Rated 4.77 out of five stars.★★★★★
Odi V2 Emig Pro MX Lock-On Grips$27.99MSRP: $31.95 You save 12%
Rated 4.70 out of five stars.★★★★★
Tusk Clutch Kit$49.99MSRP: $59.99 You save 17%
Rated 4.54 out of five stars.★★★★⯪
QA Parts Carburetor$42.99MSRP: $49.99 You save 14%
Rated 3.98 out of five stars.★★★★☆
EBC Brake Pad - Carbon "X" Series$34.67 – $36.25
Rated 4.45 out of five stars.★★★★⯪
Attack Graphics Number Plate Backgrounds$39.99MSRP: $44.99 You save 11%
Rated 4.67 out of five stars.★★★★★
PC Racing Filter Skins$15.88
Rated 4.66 out of five stars.★★★★⯪
Tusk Inner Clutch Cover Gasket$6.99MSRP: $8.99 You save 22%
Rated 5.00 out of five stars.★★★★★
Pro X Piston Kit$94.40MSRP: $124.21 You save 24%
Rated 4.55 out of five stars.★★★★⯪
Tusk Shock Bearing Kit$39.99MSRP: $46.99 You save 15%
Rated 4.45 out of five stars.★★★★⯪
Tusk Throttle Tube$5.99MSRP: $9.99 You save 40%
Rated 4.52 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.★★★★★
Pro X Top End Gasket Kit$27.93MSRP: $31.03 You save 10%
Rated 4.60 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.★★★★★
Acerbis Chain Guide$22.88MSRP: $29.95 You save 24%
Rated 4.53 out of five stars.★★★★⯪
JD Jetting Jet Kit$79.95
Rated 4.71 out of five stars.★★★★★
Sale ItemNeutron Gripper Seat Cover$19.99MSRP: $39.99 You save 50%
Rated 4.64 out of five stars.★★★★⯪
Tusk Rear Shock Seal Kit$42.99MSRP: $46.99 You save 9%
Rated 4.85 out of five stars.★★★★★
Bolt KTM Copper Drain Plug Washer Kit$4.99
Rated 4.86 out of five stars.★★★★★
Primary Drive Steel Kit & O-Ring Chain$78.57MSRP: $109.93 You save 29%
Rated 4.73 out of five stars.★★★★★
Motion Pro Clutch Lever$44.99
Rated 4.57 out of five stars.★★★★⯪
Motion Pro Throttle Tube$6.99
Rated 4.62 out of five stars.★★★★⯪
Primary Drive Steel Kit & Gold X-Ring Chain$97.17MSRP: $124.93 You save 22%
Rated 4.74 out of five stars.★★★★★
Primary Drive Rear Chain Guide$37.99MSRP: $44.99 You save 16%
Rated 4.16 out of five stars.★★★★☆
All Balls Throttle Cable$14.32
Rated 4.54 out of five stars.★★★★⯪
Polisport Front Number Plate$19.88MSRP: $29.99 You save 34%
Rated 4.80 out of five stars.★★★★★
Tusk Racer Axle Wrench$14.99MSRP: $17.99 You save 17%
Rated 4.52 out of five stars.★★★★⯪
All Balls Chain Roller$18.54MSRP: $20.60 You save 10%
Rated 4.48 out of five stars.★★★★⯪
Pro X Grooved Ultralight Front Sprocket$17.34 – $18.70MSRP: $22.81 You save up to 24%
Rated 4.70 out of five stars.★★★★★
Primary Drive XTS Front Sprocket$12.99MSRP: $15.99 You save 19%
Rated 4.79 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.★★★★★
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