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

2012 YAMAHA YZ125 Parts & Accessories

Fits Your Machine

Displaying parts for your 2012 YAMAHA YZ125

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:410
  • Pilot Jet:40

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

RM YouTube ChannelSUBSCRIBE
Renthal 1 1/8" FatBar$115.88
Rated 4.90 out of five stars.★★★★★
Cometic Top End Gasket Set$40.57
Rated 4.49 out of five stars.★★★★⯪
FMF Turbine Core II Silencer$197.99MSRP: $219.99 You save 10%
Rated 4.71 out of five stars.★★★★★
Tusk Aluminum Throttle Tube with Bearing$29.99MSRP: $35.99 You save 17%
Rated 4.71 out of five stars.★★★★★
Yamaha Complete Top End Rebuild Kit$74.87MSRP: $95.99 You save 22%
Rated 4.91 out of five stars.★★★★★
Ride Engineering Poly Cone Kit$26.96MSRP: $29.95 You save 10%
Rated 4.75 out of five stars.★★★★★
Acerbis Radiator Louvers$29.88MSRP: $39.95 You save 25%
Rated 4.64 out of five stars.★★★★⯪
Tusk Petcock Rebuild Kit$8.99MSRP: $12.99 You save 31%
Rated 4.86 out of five stars.★★★★★
Motion Pro Flywheel Puller$16.99
Rated 4.85 out of five stars.★★★★★
Supersprox Rear Steel Sprocket$44.96 – $53.96MSRP: $49.95 – $59.95 You save 10%
Rated 4.74 out of five stars.★★★★★
Attack Graphics Works Seat Cover$45.99MSRP: $54.99 You save 16%
Rated 4.55 out of five stars.★★★★⯪
Tusk Motorcycle Flag Mount Adaptor$9.99MSRP: $10.99 You save 9%
Rated 3.08 out of five stars.★★★☆☆
G2 Ergonomics Throttle Tamer$69.95
Rated 5.00 out of five stars.★★★★★
Pro X Piston Wristpin Bearing$13.90MSRP: $15.79 You save 12%
Rated 4.90 out of five stars.★★★★★
Lexx Exhaust O-ring Kit$4.99MSRP: $6.49 You save 23%
Rated 4.88 out of five stars.★★★★★
Bolt Rotor Bolt Kit$8.95MSRP: $9.95 You save 10%
Rated 4.57 out of five stars.★★★★⯪
SKF Dual Compound Fork and Dust Seal Kit$87.76
Rated 4.43 out of five stars.★★★★⯪
E Line Carbon Registration Wrap$22.95
Rated 4.83 out of five stars.★★★★★
Tusk Aluminum Throttle Tube$24.99MSRP: $29.99 You save 17%
Rated 4.73 out of five stars.★★★★★
EBC Clutch Kit$114.46
Rated 4.47 out of five stars.★★★★⯪
Tusk Shock Seal Bullet Tool$12.99MSRP: $15.99 You save 19%
Rated 4.85 out of five stars.★★★★★
Highline Recreation Style 2 Extreme Enduro Tugger Lift Strap, Front$22.99
Rated 4.83 out of five stars.★★★★★
Tusk Billet Start/Kill Switch$14.99MSRP: $29.99 You save 50%
Rated 4.28 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.★★★★★
Tusk Wheel Bearing Seals$6.99MSRP: $9.99 You save 30%
Rated 4.88 out of five stars.★★★★★
All Balls Counter Shaft Seal Kit$18.39MSRP: $20.43 You save 10%
Rated 4.74 out of five stars.★★★★★
Tusk Rear Brake Pin Kit$3.99MSRP: $4.99 You save 20%
Rated 4.71 out of five stars.★★★★★
Steahly Heavy Flywheel Weight$164.95
Rated 4.74 out of five stars.★★★★★
Polisport Clutch Cover Protection$22.88MSRP: $38.95 You save 41%
Rated 4.53 out of five stars.★★★★⯪
Pro X Complete Gasket Set$72.59MSRP: $95.51 You save 24%
Rated 4.45 out of five stars.★★★★⯪
Pivot Works Steering Stem Bearing Kit$49.88MSRP: $66.23 You save 25%
Rated 4.80 out of five stars.★★★★★
Acerbis Upper Fork Guards$19.87MSRP: $31.95 You save 38%
Rated 4.62 out of five stars.★★★★⯪
Tusk Titanium Axle Adjuster Bolts$15.99MSRP: $24.99 You save 36%
Rated 4.88 out of five stars.★★★★★
Tusk Rear Brake Caliper Rebuild Kit$18.99MSRP: $24.99 You save 24%
Rated 4.71 out of five stars.★★★★★
Enduro Engineering Ultra Rear Disc Guard$98.95MSRP: $109.95 You save 10%
Rated 4.87 out of five stars.★★★★★
Highline Recreation Style 2 Original Tugger Lift Strap, Front$17.99
Rated 4.83 out of five stars.★★★★★
Mylers Aluminum Radiator$175.00
Rated 4.12 out of five stars.★★★★☆
Tusk Cartridge Rod Holding Tool$9.99MSRP: $12.99 You save 23%
Rated 4.81 out of five stars.★★★★★
Polisport Armadillo 2-Stroke Pipe Guard$53.88MSRP: $80.99 You save 33%
Rated 3.63 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.★★★★★
Hot Rods Water Pump Repair Kit$26.06MSRP: $28.95 You save 10%
Rated 4.66 out of five stars.★★★★★
Tusk Front Brake Pin Kit$3.99MSRP: $4.99 You save 20%
Rated 4.66 out of five stars.★★★★★
Attack Graphics Gripper Seat Cover$32.99MSRP: $39.99 You save 18%
Rated 4.26 out of five stars.★★★★☆
Cycra Mud Flap$15.88
Rated 4.77 out of five stars.★★★★★
Enduro Engineering Skid Plate$119.88MSRP: $129.95 You save 8%
Rated 4.76 out of five stars.★★★★★
Fasst Rear Brake Return Spring Kit$19.99
Rated 4.44 out of five stars.★★★★⯪
Pro X Ignition Cover Gasket$5.35MSRP: $6.01 You save 11%
Rated 4.94 out of five stars.★★★★★
Motion Pro Titan Throttle Tube$21.99
Rated 4.55 out of five stars.★★★★⯪
Rocky Mountain ATV/MC Pro Series Seat Cover$35.99MSRP: $45.99 You save 22%
Rated 4.43 out of five stars.★★★★⯪
FMF Power Core II Shorty Silencer$179.99MSRP: $199.99 You save 10%
Rated 4.84 out of five stars.★★★★★
FMF Pipe Spring & O-Ring Kit$11.99
Rated 4.47 out of five stars.★★★★⯪
RM Cash ProgramParts Finder