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Search within a riding style, select an option Begin typing to search, when autocomplete results are available use up and down arrows to review and enter to select. Selecting an options will take you to a new page. Touch device users, explore by touch.
My Ride: 2018 Yamaha YZ450FX
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2018 Yamaha YZ450FX Aftermarket Parts

Yamaha
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Vehicle specifications may vary. Always consult your owner's manual to confirm exact part sizes and compatibility.
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2679 Results

Exact Fit
New
$2 Fast cash

Twin Air
Air Filter
$32.99
Sale
Save 84%
5 out of 5 stars (520) reviews
Video Available
Exact Fit
New
$1 Fast cash

Twin Air
Pre-Oiled Air Filter
$37.99
Sale
Save 10%
5 out of 5 stars (118) reviews
Video Available
Exact Fit
$4 Fast cash

Renthal
Chain & Sprocket Kit
$114.32
Sale
Save 23%
4.5 out of 5 stars (616) reviews
Video Available
Exact Fit

K&N
Cartridge Oil Filter
$11.99
4.5 out of 5 stars (145) reviews
$1 Fast cash
Colors for ODI Half Waffle V2 MX Lock-On Grips - 2 & 4-Stroke
+6 more

ODI
Half Waffle V2 MX Lock-On Grips - 2 & 4-Stroke
$28.95
4 out of 5 stars (84) reviews
Exact Fit
$2 Fast cash
Colors for Acerbis X-Grip Frame Guard
+27 more

Acerbis
X-Grip Frame Guard
$52.99
Sale
Save 13%
4.5 out of 5 stars (139) reviews
Video Available
Exact Fit

Turner Performance Products
Sintered Brake Pads
$15.99
Sale
Save 20%
3.5 out of 5 stars (6) reviews
Exact Fit
New
$3 Fast cash

All Balls
Rear Wheel Bearing Kit
$36.31
Sale
Save 5%
4.5 out of 5 stars (192) reviews
Video Available
Exact Fit
New
$3 Fast cash
Colors for Renthal Rear Sprocket
+3 more

Renthal
Rear Sprocket
$89.99
Sale
Save 10%
5 out of 5 stars (177) reviews
Video Available
Exact Fit
New
$5 Fast cash
Colors for Boyesen Clutch Cover
+2 more

Boyesen
Clutch Cover
$91.15
Sale
Save 5%
4.5 out of 5 stars (126) reviews
Exact Fit
$5 Fast cash

Dunlop
Tire Combo
$110.00
Sale
Save 13%
4.5 out of 5 stars (138) reviews
Exact Fit
New
$2 Fast cash

Renthal
Front Sprocket
$33.99
Sale
Save 10%
4.5 out of 5 stars (78) reviews
Video Available
Exact Fit
New
$5 Fast cash
Colors for Acerbis Plastic Kit
+37 more

Acerbis
Plastic Kit
$119.99
Sale
Save 24%
4.5 out of 5 stars (199) reviews
Video Available
Exact Fit
New
$2 Fast cash

All Balls
Front Wheel Bearing Kit
$33.60
Sale
Save 5%
4.5 out of 5 stars (186) reviews
Video Available
Exact Fit
$7 Fast cash
Colors for ASV F4 Series Brake and Clutch Set

ASV
F4 Series Brake and Clutch Set
$175.00
4 out of 5 stars (13) reviews
Exact Fit
$2 Fast cash

Twin Air
- Air Box Cover
$35.99
Sale
Save 8%
4.5 out of 5 stars (149) reviews
Video Available
Exact Fit
New
$6 Fast cash
Colors for Flo Motorsports Pro Series Foot Pegs
+3 more

Flo Motorsports
Pro Series Foot Pegs
$167.95
4.5 out of 5 stars (65) reviews
Exact Fit
$2 Fast cash

Fire Power
Heavy Duty Chain
$47.16
Sale
Save 20%
4 out of 5 stars (10) reviews
Exact Fit
New
$2 Fast cash

All Balls
Throttle Cable
$22.52
Sale
Save 5%
3.5 out of 5 stars (46) reviews
Video Available
Exact Fit
$1 Fast cash
Colors for Works Connection Oil Filler Plug
+5 more

Works Connection
Oil Filler Plug
$29.95
5 out of 5 stars (42) reviews
Exact Fit
$1 Fast cash
Colors for Works Connection Front Brake Reservoir Cap
+5 more

Works Connection
Front Brake Reservoir Cap
$32.95
4.5 out of 5 stars (11) reviews
Exact Fit
New
$8 Fast cash
Colors for Boyesen Supercooler Water Pump Kit

Boyesen
Supercooler Water Pump Kit
$208.95
Sale
Save 5%
4.5 out of 5 stars (119) reviews
Exact Fit
$1 Fast cash

FilGuard
Pre-Oiled Premium Dual Stage Air Filter
$25.99
Sale
Save 10%
4 out of 5 stars (105) reviews
Exact Fit
$1 Fast cash
Colors for Fire Power Standard Chain

Fire Power
Standard Chain
$37.56
Sale
Save 20%
5 out of 5 stars (2) reviews
Exact Fit
$2 Fast cash
Colors for Turner Performance Products Billet Folding Clutch & Brake Lever Combo
+2 more

Turner Performance Products
Billet Folding Clutch & Brake Lever Combo
$89.99
Clearance
Save 10%
4.5 out of 5 stars (27) reviews
Video Available
Exact Fit
$2 Fast cash

All Balls
Fork Seal And Wiper Kit
$40.57
Sale
Save 5%
4 out of 5 stars (224) reviews
Exact Fit
New

JT
Steel Front Sprocket
$10.35
Sale
Save 10%
5 out of 5 stars (35) reviews
Exact Fit
$1 Fast cash
Colors for Works Connection Rotating Clamp
+5 more

Works Connection
Rotating Clamp
$32.95
5 out of 5 stars (9) reviews

FMF
Muffler Plug
$5.99
4.5 out of 5 stars (314) reviews
Exact Fit
Colors for Polisport Radiator Louvers
+4 more

Polisport
Radiator Louvers
$18.99
Sale
Save 26%
3.5 out of 5 stars (50) reviews
Exact Fit
New
$1 Fast cash
Colors for Acerbis Fork Cover Set
+24 more

Acerbis
Fork Cover Set
$30.99
Clearance
Save 22%
4 out of 5 stars (104) reviews
Video Available
Exact Fit
$1 Fast cash
Colors for Acerbis Front Fender
+24 more

Acerbis
Front Fender
$25.99
Sale
Save 21%
4.5 out of 5 stars (125) reviews
Video Available
Exact Fit

Vertex
Exhaust Gasket Kit
$7.89
Sale
Save 5%
4 out of 5 stars (11) reviews
Exact Fit
$3 Fast cash

DID
520 DZ2 Chain
$94.28
Sale
Save 15%
4.5 out of 5 stars (122) reviews
Video Available
Exact Fit
$1 Fast cash

EBC
X Series Carbon Brake Pads
$38.02
Sale
Save 5%
4.5 out of 5 stars (79) reviews
Exact Fit
$4 Fast cash

Pro Taper
Tire Combo
$79.98
Exact Fit
New
$4 Fast cash
Colors for Dirt Tricks Zirconium Rear Sprocket

Dirt Tricks
Zirconium Rear Sprocket
$125.99
Sale
Save 10%
4.5 out of 5 stars (37) reviews
Video Available
Exact Fit

WPS
Rim Strip
$1.99
4.5 out of 5 stars (43) reviews
Exact Fit
Colors for ZETA Oil Filler Plug

ZETA
Oil Filler Plug
$15.95
4.5 out of 5 stars (6) reviews
Exact Fit
New
$2 Fast cash

All Balls
Steering Bearing Kit
$53.88
Sale
Save 5%
4.5 out of 5 stars (118) reviews
Video Available
Exact Fit
New
$15 Fast cash
Colors for IMS Gas Tank
+8 more

IMS
Gas Tank
$411.85
4 out of 5 stars (127) reviews
Exact Fit
$24 Fast cash

FMF
Factory 4.1 RCT Slip-On Exhaust
$584.99
Sale
Save 10%
5 out of 5 stars (141) reviews
Exact Fit
$1 Fast cash
Colors for Turner Performance Products Aluminum Rear Sprocket

Turner Performance Products
Aluminum Rear Sprocket
$47.99
Sale
Save 20%
5 out of 5 stars (43) reviews
Exact Fit
New
$2 Fast cash
Colors for Acerbis Rear Fender
+16 more

Acerbis
Rear Fender
$25.99
Sale
Save 21%
4.5 out of 5 stars (117) reviews
Video Available
Exact Fit
New
$10 Fast cash

Twin Air
Power Flow Air Filter Kit
$264.99
Sale
Save 9%
4.5 out of 5 stars (65) reviews
Exact Fit
$4 Fast cash

Works Connection
Pro Launch Start Device
$139.95
5 out of 5 stars (91) reviews
Exact Fit
$6 Fast cash

ARC
Folding Aluminum Lever Combo
$135.76
Sale
Save 15%
4.5 out of 5 stars (39) reviews
Exact Fit
$3 Fast cash

Pivot Works
Swing Arm Bearing Kit
$71.50
Sale
Save 33%
4.5 out of 5 stars (95) reviews
Video Available
Exact Fit

Turner Performance Products
Oil Filter
$5.99
Sale
Save 20%
4 out of 5 stars (5) reviews
Exact Fit
New
$3 Fast cash
Colors for Works Connection Elite Axle Blocks
+5 more

Works Connection
Elite Axle Blocks
$69.95
3.5 out of 5 stars (3) reviews
Video Available
Exact Fit
$4 Fast cash

Dunlop
Geomax MX14 Rear Tire
$148.99
Sale
Save 13%
4.5 out of 5 stars (8) reviews
Exact Fit
$18 Fast cash

Hinson
Clutch Cover
$159.99
5 out of 5 stars (48) reviews
Video Available
Exact Fit
$2 Fast cash
Colors for Guts Racing Ribbed Seat Cover
+29 more

Guts Racing
Ribbed Seat Cover
$79.99
4.5 out of 5 stars (20) reviews
Exact Fit
New
$2 Fast cash
Colors for Works Connection Engine Timing Plugs
+5 more

Works Connection
Engine Timing Plugs
$44.95
4 out of 5 stars (15) reviews
Video Available
Exact Fit
$4 Fast cash

Kenda
MX Tire Combo
$79.00
Sale
Save 66%
5 out of 5 stars (6) reviews
Exact Fit

Mika Metals
Sprocket Bolt Kit
$9.99
Sale
Save 17%
4.5 out of 5 stars (8) reviews
Exact Fit
New
$4 Fast cash

All Balls
Linkage Bearing Kit
$111.63
Sale
Save 5%
4.5 out of 5 stars (151) reviews
Video Available
Exact Fit
$1 Fast cash
Colors for Works Connection Rear Brake Reservoir Cap
+4 more

Works Connection
Rear Brake Reservoir Cap
$29.95
5 out of 5 stars (6) reviews
Exact Fit
New
$2 Fast cash
Colors for Acerbis Side Panel Set
+26 more

Acerbis
Side Panel Set
$45.99
Sale
Save 22%
4.5 out of 5 stars (124) reviews
Video Available
Exact Fit
New
$1 Fast cash

All Balls
Brake Master Cylinder Rebuild Kit
$28.31
Sale
Save 5%
4.5 out of 5 stars (80) reviews
Video Available

2018 Yamaha YZ450FX Aftermarket Parts

At MotoSport you'll find all the 2018 Yamaha YZ450FX aftermarket parts you need to make your next ride your best ride. We aim to please and suit a wide variety of bikes and riding styles, as well. We carry a large selection of dirt bike exhausts to give you the option of a race ready system or for more modest engines.

Not only do we carry the 2018 Yamaha YZ450FX aftermarket parts that give your dirt bike a performance boost, we also carry the parts to keep your ride feeling smooth. Sometimes the parts that keep your bike riding its best come directly from the manufacturer. At MotoSport you can also find the OEM dirt bike parts to complete almost any job, from a basic fender bolt to a complete new top end if you prefer to stick with stock.

Finding all the parts and gear you need has never been easier - and shipping your parts and gear is free on orders more than $79! You've got more choices than ever when it comes to where to buy, and we always want to provide the best shopping experience in the industry. If you run into trouble or need help finding specific parts for your 2018 Yamaha YZ450FX give a gearhead a call at 503-783-5645 and we'll get you ready to ride.