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1998 KTM 125 SX Parts & Accessories

Fits Your Machine

Displaying parts for your 1998 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
CV4 High Pressure Radiator Cap$34.88MSRP: $44.90 You save 22%
Rated 4.90 out of five stars.★★★★★
Tusk Carburetor Adjustment Screw Kit $17.99MSRP: $29.98 You save 40%
Rated 4.56 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.★★★★⯪
Vortex 520 Steel Front Sprocket$25.46MSRP: $29.95 You save 15%
Rated 4.80 out of five stars.★★★★★
Twin Air Power Flow Intake System Replacement Filter$32.99MSRP: $36.95 You save 11%
Rated 4.74 out of five stars.★★★★★
ASV F4 Series Brake Lever$95.00
Rated 4.85 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.★★★★☆
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.★★★★★
Pro X Crankshaft Bearing and Seal Kit$96.11MSRP: $106.79 You save 10%
Rated 4.89 out of five stars.★★★★★
Fastway Evo 4 Foot Pegs$167.90
Rated 4.77 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.★★★★⯪
Tusk Universal Big Bar Clamp Kit$29.99MSRP: $35.99 You save 17%
Rated 4.65 out of five stars.★★★★⯪
All Balls Clutch Master Cylinder Repair Kit$39.74MSRP: $44.15 You save 10%
Rated 4.44 out of five stars.★★★★⯪
Pro X Clutch Master Cylinder Repair Kit$35.35MSRP: $41.11 You save 14%
Rated 4.69 out of five stars.★★★★★
Pro X Complete Clutch Kit$122.36MSRP: $161.00 You save 24%
Rated 4.63 out of five stars.★★★★⯪
Tusk Titanium Sprocket Bolt Kit$39.99MSRP: $48.99 You save 18%
Rated 5.00 out of five stars.★★★★★
Primary Drive Alloy Kit & Gold Plated MX Race Chain$103.99MSRP: $133.93 You save 22%
Rated 4.86 out of five stars.★★★★★
Galfer Brake Pad - Sintered Double H$33.75MSRP: $37.50 You save 10%
Rated 4.62 out of five stars.★★★★⯪
Warp 9 Oversized MX Foot Pegs$99.00 – $105.99
Rated 4.65 out of five stars.★★★★⯪
Bolt 2-Stroke Pipe Mount Kit$22.99MSRP: $24.99 You save 8%
Rated 5.00 out of five stars.★★★★★
Wiseco Piston Replacement Circlip$2.65MSRP: $2.79 You save 5%
Rated 4.86 out of five stars.★★★★★
TORC1 Racing Defy Lock On MX Grips$26.59MSRP: $27.99 You save 5%
Rated 4.41 out of five stars.★★★★⯪
Primary Drive Steel Kit & X-Ring Chain$90.53MSRP: $116.93 You save 23%
Rated 4.69 out of five stars.★★★★★
Tusk Spoke Torque Wrench Replacement Head$11.99MSRP: $14.99 You save 20%
Rated 4.43 out of five stars.★★★★⯪
ProTaper Clamp-On Grip System - Half Waffle$28.49MSRP: $29.99 You save 5%
Rated 4.21 out of five stars.★★★★☆
ASV C6 Series Brake Lever$120.00
Rated 4.60 out of five stars.★★★★⯪
ASV F4 Series Standard Clutch Lever$95.00
Rated 4.38 out of five stars.★★★★⯪
DeVol Radiator Guards$107.88MSRP: $129.95 You save 17%
Rated 4.40 out of five stars.★★★★⯪
Tusk Aluminum Pipe Guard$25.99MSRP: $29.99 You save 13%
Rated 4.27 out of five stars.★★★★☆
Enduro Engineering Trail Side Multi Tool$31.99MSRP: $34.95 You save 8%
Rated 4.88 out of five stars.★★★★★
Factory Effex All Grip Seat Cover$42.88MSRP: $49.95 You save 14%
Rated 4.45 out of five stars.★★★★⯪
Vortex 520 Steel Rear Sprocket$58.61MSRP: $68.95 You save 15%
Rated 4.83 out of five stars.★★★★★
Mylers High Pressure Radiator Cap$17.99MSRP: $20.00 You save 10%
Rated 4.76 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.★★★★☆
Bullet Proof Designs Oil Drain Kit$17.99
Rated 4.00 out of five stars.★★★★☆
All Balls Float Bowl Gasket$9.38MSRP: $10.42 You save 10%
Rated 4.95 out of five stars.★★★★★
Pro X Inner Clutch Hub$47.93MSRP: $63.06 You save 24%
Rated 4.78 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.★★★★★
Pro X OEM Clutch Plate Set Friction$71.82MSRP: $84.49 You save 15%
Rated 4.85 out of five stars.★★★★★
Polisport Free Flow UFX Front Fender$32.88
Rated 4.57 out of five stars.★★★★⯪
T.M. Designworks Factory Edition 1 Rear Chain Guide$99.95
Rated 4.74 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.★★★★★
All Balls Front Brake Caliper Bolt Kit$12.34MSRP: $13.71 You save 10%
Rated 4.83 out of five stars.★★★★★
Race Tech Shock Nitrogen Charging Bolt$16.99
Rated 3.64 out of five stars.★★★⯪☆
IMS Pro-Series Foot Pegs$118.65
Rated 4.77 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.★★★⯪☆
Pro X Aluminum Rear Sprocket$49.12MSRP: $64.63 You save 24%
Rated 4.78 out of five stars.★★★★★
Wheeler Whips Clamp On Motorcycle Flag Holder$33.88
Rated 3.80 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.★★★★★
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.★★★★★
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