Yamaha YFZ450 / YFZ450R / YFZ450F / YFZ450X

New YFZ450R +5mm stroker crank  Built by Crankworks in Tempe, AZ Hotrods HD stroker rod kit Balanced and welded at pin Drops right in - no case or...

Stage 1 Hotcams - intake and exhaust Talon HD timing chain Excellent upgrade over OEM cams Works with OEM or after market valve springs All brand n...

New BPR 98mm cylinder 98mm Wiseco CP or JE forged piston** Nitrite coated piston rings Chrome wristpin Circlips Hotrods or Wiseco HD replacement c...

Works on all Yamaha YFZ450X models Grade 5 TITANIUM alloy material Clutch and stator cover bolts Oil and water pump cover bolts Starter cover bolts...

WORKS ON ALL YAMAHA YFZ450R FUEL INJECTED MODELS - DOES NOT FIT CARB MODEL YFZ450 Stock bore MLS head gasket Base gasket Chain tensioner gasket V...

FITS ALL YAMAHA YFZ 450R FI MODELS ONLY - THESE ARE GUARANTEED TO BE THE BEST STUDS YOU CAN GET! Titanium alloy head stud kit The strongest he...

Compatible Vehicles Submodel Year Make Model -- 2021 Yamaha YFZ450R -- 2020 Yamaha YFZ450R -- 2019 Yamaha YFZ450R -- 2018 Yamaha YF...

THE BIGGEST BADDEST BIG BORE STROKER ON THE PLANET - 520cc!FITS ALL YAMAHA YFZ450r FI MODELS AND YEARS 98mm big bore cylinder +5mm CUSTOM BUILT...

COMPLETE ASSEMBLED BIG BORE MOTOR - PHOTOS ARE OF ACTUAL ITEM YOU WILL RECEIVEUsed core bottom end including crankcases, transmission, clutch baske...

Hotrods heavy duty replacement crank assemblyTrued and welded at pinCompletely polished crank and rodPerfect set up for stock or built motorPolishi...

Works on all Yamaha YFZ450R models and years  Aftermarket replacement crank pin and rod bearing SKF heavy duty main crankshaft bearings made in Ge...

Works on all Yamaha YFZ450R models and years Grade 5 TITANIUM alloy material Clutch and stator side cover bolts Oil and water pump cover bolts Star...

FITS ALL YAMAHA YFZ450R FUEL INJECTED MODELS All Grade 5 Titanium Alloy stud, nut, and washer kit Heat treated, allen head studs 12 point flange ...

Works on all Yamaha YFZ450R and YFZ450X models does NOT work on YFZ450 carb model Aftermarket replacement crank pin and rod bearing SKF heavy duty...

Works on all Yamaha YFZ450R and YFZ450X models does NOT work on YFZ450 carb model Aftermarket replacement crank pin and rod bearing Includes thrus...

FITS ALL YAMAHA YFZ 450R 450X MODELS AND YEARS - DOES NOT FIT CARB MODEL YFZ450 Two counter balancer roller bearings One counter balancer needle...

FITS ALL YAMAHA 450cc ATVs AND MANY 450cc DIRT BIKESKibblewhite valve spring kitTitanium retainersHeat treated collars+1 Kibblewhite stainless stee...

FITS ALL YAMAHA 450cc MODELS LISTED ABOVE Includes one MLS steel head gasket in 95mm.  Fits any 95mm cylinder.  Everything is new in the original p...

THE BEST WAY TO FIX YOUR 2014+ YFZ450R CLUTCH BASKET ISSUES IS RIGHT HERE! Hinson BTL Series Slipper Clutch Fixes clutch basket failure issues Cl...

FITS ALL YAMAHA YFZ450R/X MODELS AND YEARS FI MODEL ONLY! 98mm BPR big bore cylinder 14:1 CP-Carrillo Custom forged big bore piston - RACE GAS OR ...