Yamaha YZ450F Parts & Accessories

Everything we stock that fits the Yamaha YZ450F (2003–2026): 166 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 YZ450F

Drivetrain for the Yamaha YZ450F (77 available)

Suspension for the Yamaha YZ450F

Controls for the Yamaha YZ450F

Exhaust for the Yamaha YZ450F (29 available)

FMF S/s Powerbomb — Yamaha WR450F (2003-2006), Yamaha YFZ450 (2004-2015) + 1 more, 4 — (seeFMF S/s Powerbomb — Yamaha WR450F (2003-2006), Yamaha YFZ450 (2004-2015) + 1 more, 4 — (see $224.99 FMF Q4 — Yamaha WR450F (2003-2006), Yamaha YZ450F (2003-2005), 4-StrokeFMF Q4 — Yamaha WR450F (2003-2006), Yamaha YZ450F (2003-2005), 4-Stroke $404.99 FMF Powercore 4 — Slip-On — Yamaha WR450F (2003-2006), Yamaha YZ450F (2003-2005), 4-StrokeFMF Powercore 4 — Slip-On — Yamaha WR450F (2003-2006), Yamaha YZ450F (2003-2005), 4-Stroke $359.99 FMF S/s Powerbomb — Yamaha WR450F (2007-2015), Yamaha YZ450F (2007-2009), 4-StrokeFMF S/s Powerbomb — Yamaha WR450F (2007-2015), Yamaha YZ450F (2007-2009), 4-Stroke $224.99 FMF Powercore 4 — Slip-On — Yamaha WR250F (2007-2013), Yamaha WR450F (2007-2011) + 2 moreFMF Powercore 4 — Slip-On — Yamaha WR250F (2007-2013), Yamaha WR450F (2007-2011) + 2 more $359.99 FMF Q4 — Yamaha WR250F (2007-2013), Yamaha WR450F (2007-2011) + 2 more, 4 — (seeFMF Q4 — Yamaha WR250F (2007-2013), Yamaha WR450F (2007-2011) + 2 more, 4 — (see $404.99 FMF Factory 4.1 — Full System — Yamaha WR250F (2007-2013), Yamaha WR450F (2007-2011) + 2FMF Factory 4.1 — Full System — Yamaha WR250F (2007-2013), Yamaha WR450F (2007-2011) + 2 $449.99 FMF Powercore 4 — HEX Slip-On — Yamaha YZ450F (2010-2013), 4-StrokeFMF Powercore 4 — HEX Slip-On — Yamaha YZ450F (2010-2013), 4-Stroke $359.99 FMF Powercore 4 — HEX Slip-On — Yamaha WR450F (2016-2018), Yamaha YZ450F (2014-2017) + 1FMF 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 — (seeFMF 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) + 1FMF 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) + 1FMF 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 — (seeFMF 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 — (seeFMF 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 — (seeFMF 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 — (seeFMF 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 — (seeFMF 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 — (seeFMF 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 YZ450F (2026), 4-StrokeFMF Factory 4.1 — RCT Titanium Anodized Full System — Yamaha YZ450F (2026), 4-Stroke $1237.49 FMF Factory 4.1 — RCT Titanium Anodized Full System — Yamaha WR450F (2019-2026), YamahaFMF 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), YamahaFMF Factory 4.1 — RCT Titanium Anodized Full System — Yamaha WR450F (2024-2026), Yamaha $1237.49 Big Gun ECO Slip-On Muffler — Yamaha YZ 450F (2007-2009), 4-StrokeBig Gun ECO Slip-On Muffler — Yamaha YZ 450F (2007-2009), 4-Stroke $327.99 Big Gun ECO Slip-On Muffler — Yamaha YZ 450F (2010-2013), 4-StrokeBig Gun ECO Slip-On Muffler — Yamaha YZ 450F (2010-2013), 4-Stroke $327.99 Big Gun EVO-R Header Pipe — Yamaha YZ 450F (2010-2013), 4-StrokeBig Gun EVO-R Header Pipe — Yamaha YZ 450F (2010-2013), 4-Stroke $278.99

Engine for the Yamaha YZ450F

Protection for the Yamaha YZ450F

Maintenance for the Yamaha YZ450F

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 YZ450F, tell us. Accuracy is the whole point.