2021 YAMAHA YZ125 Parts & Accessories

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Displaying parts for your 2021 YAMAHA YZ125

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See stock sizes for this machine

  • Front Tire:80/100X21
  • Rear Tire:100/90X19
  • Front Sprocket:13 Tooth
  • Rear Sprocket:48 Tooth
  • Chain:520X112
  • Spark Plug:BR9EIX
  • Main jet:430
  • Pilot Jet:40

How To Rebuild the Top End on a Yamaha YZ125 & YZ125X

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Pro X Connecting Rod Kit$98.37MSRP: $129.43 You save 24%
Rated 4.93 out of five stars.★★★★★
Pro X Piston Wristpin Bearing$13.90MSRP: $15.79 You save 12%
Rated 4.90 out of five stars.★★★★★
FMF Turbine Core II Silencer$197.99MSRP: $219.99 You save 10%
Rated 4.71 out of five stars.★★★★★
Tusk Petcock Rebuild Kit$8.99MSRP: $12.99 You save 31%
Rated 4.86 out of five stars.★★★★★
Cometic Top End Gasket Set$40.57
Rated 4.49 out of five stars.★★★★⯪
Steahly Heavy Flywheel Weight$164.95
Rated 4.74 out of five stars.★★★★★
All Balls Swing Arm Bearing Kit$75.88MSRP: $84.31 You save 10%
Rated 4.70 out of five stars.★★★★★
Highline Recreation Style 2 Extreme Enduro Tugger Lift Strap, Front$22.99
Rated 4.83 out of five stars.★★★★★
Bolt Rotor Bolt Kit$8.95MSRP: $9.95 You save 10%
Rated 4.57 out of five stars.★★★★⯪
G2 Ergonomics Throttle Tamer$69.95
Rated 5.00 out of five stars.★★★★★
Motion Pro Flywheel Puller$16.99
Rated 4.85 out of five stars.★★★★★
Pro X Complete Gasket Set$72.59MSRP: $95.51 You save 24%
Rated 4.45 out of five stars.★★★★⯪
Tusk Aluminum Throttle Tube$24.99MSRP: $29.99 You save 17%
Rated 4.73 out of five stars.★★★★★
Tusk Suspension Soft Jaws$34.99MSRP: $42.99 You save 19%
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EBC Clutch Kit$114.46
Rated 4.47 out of five stars.★★★★⯪
Acerbis X-Brake/Spider Evolution Disc Cover Mounting Kit$27.88 – $36.88MSRP: $36.95 – $43.95 You save up to 25%
Rated 4.56 out of five stars.★★★★⯪
Mylers Aluminum Radiator$175.00
Rated 4.12 out of five stars.★★★★☆
Odi V2 System Snap On Throttle Cam$3.50
Rated 4.92 out of five stars.★★★★★
Tusk Billet Air Filter Bolt$9.99MSRP: $12.99 You save 23%
Rated 4.84 out of five stars.★★★★★
All Balls Fuel Petcock Rebuild Kit$15.45MSRP: $17.17 You save 10%
Rated 4.61 out of five stars.★★★★⯪
Polisport Air Box Mud Flap$14.88 – $15.99MSRP: $18.99 You save up to 22%
Rated 4.89 out of five stars.★★★★★
Primary Drive Alloy Kit & Gold X-Ring Chain$113.07MSRP: $142.93 You save 21%
Rated 4.75 out of five stars.★★★★★
Tusk Rear Brake Caliper Rebuild Kit$18.99MSRP: $24.99 You save 24%
Rated 4.71 out of five stars.★★★★★
Galfer Brake Pad - Sintered Double H$33.75MSRP: $37.50 You save 10%
Rated 4.62 out of five stars.★★★★⯪
Yamaha Complete Top End Rebuild Kit$74.87MSRP: $95.99 You save 22%
Rated 4.91 out of five stars.★★★★★
Boyesen Supercooler Water Pump Cover and Impeller Kit$195.99MSRP: $219.95 You save 11%
Rated 4.74 out of five stars.★★★★★
Tusk Shock Seal Bullet Tool$12.99MSRP: $15.99 You save 19%
Rated 4.85 out of five stars.★★★★★
All Balls Counter Shaft Seal Kit$18.39MSRP: $20.43 You save 10%
Rated 4.74 out of five stars.★★★★★
ASV F4 Series Brake Lever$95.00
Rated 4.85 out of five stars.★★★★★
SKF Dual Compound Fork and Dust Seal Kit$87.76
Rated 4.50 out of five stars.★★★★⯪
Highline Recreation Style 2 Original Tugger Lift Strap, Front$17.99
Rated 4.83 out of five stars.★★★★★
Attack Graphics Gripper Seat Cover$32.99MSRP: $39.99 You save 18%
Rated 4.26 out of five stars.★★★★☆
Acerbis X-Brake Vented Front Disc Cover with Mounting Kit$53.76 – $64.87MSRP: $71.90 – $78.90 You save up to 25%
Rated 4.71 out of five stars.★★★★★
IMS SuperStock Foot Pegs$108.00
Rated 4.58 out of five stars.★★★★⯪
Hot Rods Water Pump Repair Kit$26.06MSRP: $28.95 You save 10%
Rated 4.66 out of five stars.★★★★★
Tusk Billet Start/Kill Switch$14.99MSRP: $29.99 You save 50%
Rated 4.28 out of five stars.★★★★☆
Tusk Titanium Axle Adjuster Bolts$15.99MSRP: $24.99 You save 36%
Rated 4.88 out of five stars.★★★★★
Acerbis Radiator Louvers$29.88MSRP: $39.95 You save 25%
Rated 4.64 out of five stars.★★★★⯪
Fasst Rear Brake Return Spring Kit$19.99
Rated 4.44 out of five stars.★★★★⯪
Tusk Shift Shaft Seal$2.99MSRP: $3.99 You save 25%
Rated 5.00 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.★★★★⯪
Pro X Ignition Cover Gasket$5.35MSRP: $6.01 You save 11%
Rated 4.94 out of five stars.★★★★★
Tusk Front Brake Pin Kit$3.99MSRP: $4.99 You save 20%
Rated 4.66 out of five stars.★★★★★
Pivot Works Steering Stem Bearing Kit$49.88MSRP: $66.23 You save 25%
Rated 4.80 out of five stars.★★★★★
Polisport Clutch Cover Protection$22.88MSRP: $38.95 You save 41%
Rated 4.53 out of five stars.★★★★⯪
Tusk Cartridge Rod Holding Tool$9.99MSRP: $12.99 You save 23%
Rated 4.81 out of five stars.★★★★★
Enduro Engineering Ultra Rear Disc Guard$98.95MSRP: $109.95 You save 10%
Rated 4.87 out of five stars.★★★★★
Tusk Fork Bushing Kit$25.99MSRP: $35.99 You save 28%
Rated 4.94 out of five stars.★★★★★
Renthal Twinwall 1 1/8" Handlebar$167.88
Rated 4.90 out of five stars.★★★★★
Polisport Armadillo 2-Stroke Pipe Guard$53.88MSRP: $80.99 You save 33%
Rated 3.63 out of five stars.★★★⯪☆
EBC Clutch Spring Set$11.79
Rated 4.78 out of five stars.★★★★★
Tusk Impact Wheel Bearing and Seal Kit - Front$21.99MSRP: $25.99 You save 15%
Rated 4.43 out of five stars.★★★★⯪
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