Yamaha YZ450FX Parts & Accessories

Everything we stock that fits the Yamaha YZ450FX (2016–2026): 119 parts, each verified against manufacturer fitment data, grouped by category. Prices and stock are live. Not sure on year or trim? Use the bike finder to confirm your exact match.

Brakes for the Yamaha YZ450FX

Master Cylinder Rebuild Kit — Gas-Gas EC125 $28.31 Master Cylinder Rebuild Kit — Kawasaki KX125 $28.31 Master Cylinder Rebuild Kit — Gas-Gas EC125 $28.07 Brake Caliper Rebuild Kit — Honda ATC350X (1986) $30.99 Brake Caliper Rebuild Kit — Kawasaki KX125 $31.23 Brake Caliper Rebuild Kit — Gas-Gas EC125 $30.99 Brake Caliper Bolt Kit — Gas-Gas EC125 $10.90 Brake Caliper Bolt Kit — Beta RC 4T 450 (2025) + $10.37 Brake Caliper Piston Kit — Kawasaki KX125 $47.86 Brake Caliper Piston Kit — Beta RC 4T 450 (2025) $26.57

Drivetrain for the Yamaha YZ450FX (73 available)

JT Sprockets 520 Steel Front Sprocket, 14T (JTF565.14SC) $11.99 JT Sprockets 520 Steel Front Sprocket, 16T (JTF565.16) $11.99 JT Sprockets 520 Self-Cleaning Steel Rear Sprocket, 48T (JTR251.48SC) $36.99 JT Sprockets 520 Self-Cleaning Steel Rear Sprocket, 49T (JTR251.49SC) $36.99 JT Sprockets 520 Self-Cleaning Steel Rear Sprocket, 50T (JTR251.50SC) $36.99 JT Sprockets 520 HDR X-Ring Chain — 110 Links $39.99 JT Sprockets 520 HDR X-Ring Chain — 112 Links $39.99 JT Sprockets 520 HDR X-Ring Chain — 114 Links $40.99 JT Sprockets 520 HDR X-Ring Chain — 116 Links $41.99 JT Sprockets 520 HDR X-Ring Chain — 118 Links $42.99 JT Sprockets 520 HDR X-Ring Chain — 120 Links $42.99 JT Sprockets 520 HDR X-Ring Chain — 124 Links $44.99 JT Sprockets 520 HDS X-Ring Chain — 116 Links $44.99 JT Sprockets 520 HDS X-Ring Chain — 118 Links $44.99 JT Sprockets 520 HDS X-Ring Chain — 120 Links $44.99 JT Sprockets 520 HDS X-Ring Chain — 124 Links $44.99 JT Sprockets 520 X1R X-Ring Chain — 114 Links $51.99 JT Sprockets 520 X1R X-Ring Chain — 116 Links $51.99 JT Sprockets 520 X1R X-Ring Chain — 118 Links $51.99 JT Sprockets 520 X1R X-Ring Chain — 120 Links $51.99 JT Sprockets 520 X1R X-Ring Chain — 124 Links $51.99 D.I.D 520VO Connecting Link — Clip Type, Gold & Black $10.52 D.I.D 520VO Connecting Link — Rivet Type $9.67 D.I.D 520VO Connecting Link — Rivet Type, Gold & Black $10.52

Suspension for the Yamaha YZ450FX

Fork Bushing Kit — Beta RR 2T 125 Race $68.75 Fork Oil Seal Kit — Beta RR 2T 125 (2019-2023) + $18.24 Fork Dust Seal Kit — Beta RR 2T 125 (2019-2023) $19.50 Swingarm Bearing Kit — Yamaha WR250F (2015-2025) $96.98 Fork Bushing Kit — Yamaha WR250F (2018-2022) + 8 $73.15 Suspension Linkage Bearing Kit — Yamaha WR250F $111.63 Fork Oil & Dust Seal Kit — Beta RR 2T 125 $40.57

Controls for the Yamaha YZ450FX

Motion Pro Clutch Lever — 14-0545 $14.99 Motion Pro Brake Lever — 14-9540 $41.99 Steering Stem Bearing Kit — Suzuki RM125 $53.88

Exhaust for the Yamaha YZ450FX

FMF Powercore 4 — HEX Slip-On — Yamaha WR450F (2016-2018), Yamaha YZ450F (2014-2017) + 1 $359.99 FMF Megabomb — Header — Yamaha WR450F (2019-2020), Yamaha YZ450F (2018-2019) + 1 — (see $382.49 FMF Powercore 4 — HEX Slip-On — Yamaha WR450F (2019-2026), Yamaha YZ450F (2018-2026) + 1 $359.99 FMF Q4 — S/A Slip-On — Yamaha WR450F (2019-2026), Yamaha YZ450F (2018-2026) + 1 $404.99 FMF Factory 4.1 — RCT Stainless Full System — Yamaha WR450F (2019-2026), Yamaha YZ450F — (see $584.99 FMF Megabomb — Header — Yamaha YZ450F (2020-2022), Yamaha YZ450FX (2021-2023), 4 — (see $382.49 FMF Megabomb — Header — Yamaha YZ450F (2020-2022), Yamaha YZ450FX (2021-2023), 4 — (see $472.49 FMF Megabomb — Header — Yamaha WR450F (2024-2026), Yamaha YZ450F (2023-2025) + 1 — (see $382.49 FMF Megabomb — Header — Yamaha WR450F (2024-2026), Yamaha YZ450F (2023-2025) + 1 — (see $472.49 FMF Factory 4.1 — RCT Stainless Full System — Yamaha WR450F (2024-2026), Yamaha YZ450F — (see $967.49 FMF Factory 4.1 — RCT Titanium Anodized Full System — Yamaha WR450F (2019-2026), Yamaha $764.99 FMF Factory 4.1 — RCT Titanium Anodized Full System — Yamaha WR450F (2024-2026), Yamaha $1237.49

Electrical for the Yamaha YZ450FX

Yuasa YTZ7S Factory Activated AGM Battery $126.02

Protection for the Yamaha YZ450FX

Polisport Side Panel — Yamaha YZ-250F450FX (2024-2026), Yamaha YZ-450F (2023-202 $29.99 Chain Roller — 43-24mm $21.73 Chain Roller — 34-24mm — 5 Makes — (PN 79-5008) $21.33

Maintenance for the Yamaha YZ450FX

Twin Air Standard Air Filter — Yamaha WR 250F (2015-2019), Yamaha WR 450F $29.08 Twin Air Standard Air Filter — Yamaha WR 250F (2015-2019), Yamaha WR 450F $36.99 Twin Air Standard Air Filter — Yamaha WR 250F (2015-2019), Yamaha WR 450F $36.99 Twin Air Standard Air Filter — Fantic XEF 250 (2021-2025), Fantic XEF 310 $29.08 Twin Air Standard Air Filter — Fantic XEF 250 (2021-2025), Fantic XEF 310 $36.99 Twin Air Standard Air Filter — Fantic XEF 250 (2021-2025), Fantic XEF 310 $36.99 Twin Air Standard Air Filter — Fantic XEF 250 (2021-2025), Fantic XEF 310 $36.99 Twin Air Standard Air Filter — Fantic XXF 250 (2025-2026), Fantic XXF 450 $27.97 Twin Air Standard Air Filter — Fantic XXF 250 (2025-2026), Fantic XXF 450 $36.99 Hiflofiltro Oil Filter — HF140 $4.78

Fitment is anchored on the manufacturer's own application data and verified before it goes live. If you spot anything that looks off for your Yamaha YZ450FX, tell us. Accuracy is the whole point.