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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: 2008 KTM 450XC ATV
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ATV Engine Parts

Applied Refinements
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163 Results

NGK
Offroad Spark Plug
$4.28 - $24.69
Sale
Save 10%
5 out of 5 stars (67) reviews
Exact Fit
$3 Fast cash

Pro X
Top End Gasket Kit
$71.99
Sale
Save 10%
5 out of 5 stars (2) reviews
Exact Fit

K&N
Cartridge Oil Filter
$11.99
4.5 out of 5 stars (147) reviews
Exact Fit
New
$11 Fast cash

Vertex
4-Stroke Piston
$272.66
Sale
Save 10%
4.5 out of 5 stars (39) reviews
Exact Fit
$10 Fast cash

Wiseco
Pro-Lite High-Compression 4-Stroke Piston
$269.99
Sale
Save 10%
4.5 out of 5 stars (7) reviews
Exact Fit
$8 Fast cash

Wiseco
Pro-Lite 4-Stroke Piston
$269.99
Sale
Save 10%
5 out of 5 stars (70) reviews
Exact Fit
$7 Fast cash

Vertex
Top End Gasket Kit
$75.00
Sale
Save 5%
5 out of 5 stars (16) reviews
Exact Fit
$7 Fast cash

EBC
CK Clutch Kit
$163.43
Sale
Save 5%
4.5 out of 5 stars (28) reviews
Exact Fit
$6 Fast cash

Pro X
4-Stroke Piston
$189.99
Sale
Save 10%
3.5 out of 5 stars (5) reviews
Exact Fit
$4 Fast cash

All Balls
Carburetor Rebuild Kit
$50.99
Sale
Save 5%
4.5 out of 5 stars (187) reviews
Exact Fit
$3 Fast cash

HOTCAMS
Valve Shim Kit
$62.36
Sale
Save 37%
5 out of 5 stars (178) reviews
Exact Fit
$5 Fast cash

Pro X
Crankshaft Bearing and Seal Kit
$140.99
Sale
Save 10%
5 out of 5 stars (1) review
Exact Fit
$10 Fast cash

Vertex
Complete Gasket Kit
$164.71
Sale
Save 5%
5 out of 5 stars (8) reviews
Exact Fit
New
$18 Fast cash

Hinson
Clutch Cover
$159.99
5 out of 5 stars (48) reviews
Exact Fit
$7 Fast cash

Pro X
Complete Gasket Set
$174.99
Sale
Save 10%
Exact Fit
$8 Fast cash

Pro X
Complete Clutch Plate Set
$145.99
Sale
Save 10%
4 out of 5 stars (5) reviews
Exact Fit
New
$7 Fast cash

Pro X
Connecting Rod Kit
$189.99
Sale
Save 10%
Exact Fit
Colors for ZETA Oil Filler Plug

ZETA
Oil Filler Plug
$19.74
4.5 out of 5 stars (6) reviews
Exact Fit
$5 Fast cash

Cometic
Top End Gasket Kit
$84.38
4 out of 5 stars (248) reviews
Exact Fit
$1 Fast cash

PC Racing
Flo Stainless Steel Oil Filter
$47.45
Sale
Save 5%
4.5 out of 5 stars (66) reviews
Exact Fit
$1 Fast cash
Colors for Ride Engineering Oil Filler Plug

Ride Engineering
Oil Filler Plug
$21.99
Sale
Save 12%
4 out of 5 stars (9) reviews
Exact Fit

Vertex
Exhaust Gasket Kit
$16.26
Sale
Save 5%
4 out of 5 stars (12) reviews
Exact Fit
$1 Fast cash

All Balls
Carburetor Mid Body Gasket Kit
$30.59
Sale
Save 5%
4.5 out of 5 stars (5) reviews
Exact Fit

FilGuard
Premium Oil Filter
$5.99
Sale
Save 20%
4.5 out of 5 stars (54) reviews
Exact Fit

Twin Air
Oil Filter
$10.99
5 out of 5 stars (13) reviews
Exact Fit
$8 Fast cash

Wiseco
Pro-Lite Piston Kit - 4-Stroke
$329.98
Sale
Save 12%
4.5 out of 5 stars (41) reviews
Exact Fit

Kibblewhite
Valve Seal Kit
$13.96
Exact Fit
$11 Fast cash

Barnett
Clutch Kit
$214.41
4.5 out of 5 stars (156) reviews
Exact Fit

All Balls
Float Bowl Gasket
$11.76
Sale
Save 5%
Exact Fit
$2 Fast cash

Vertex
Valve Cover Gasket
$8.71
Sale
Save 5%
1.5 out of 5 stars (7) reviews
Exact Fit

BikeMaster
Oil Filter
$4.99
4.5 out of 5 stars (28) reviews
Exact Fit
New
$15 Fast cash

Athena
Gasket Kit - Complete
$182.99
Sale
Save 10%
4 out of 5 stars (107) reviews
Exact Fit
New
$6 Fast cash

All Balls
Crank Shaft Bearing Kit
$188.15
Sale
Save 5%
5 out of 5 stars (5) reviews
Exact Fit
$8 Fast cash

Arrowhead
Starter Motor
$163.99
Sale
Save 28%
4.5 out of 5 stars (39) reviews
Exact Fit
$3 Fast cash

Wiseco
Cam Chain
$83.99
Sale
Save 10%
5 out of 5 stars (26) reviews
Exact Fit
New
$4 Fast cash

Pro X
Cam Chain
$79.99
Sale
Save 10%
Exact Fit
New
$10 Fast cash

Athena
Top End Gasket Kit
$108.99
Sale
Save 10%
4.5 out of 5 stars (3) reviews
Exact Fit
$2 Fast cash

Pro X
Piston Ring Set
$45.99
Sale
Save 10%
5 out of 5 stars (1) review
Exact Fit
New
$1 Fast cash

Pro X
Steel Intake Valve
$31.99
Sale
Save 11%
Exact Fit

All Balls
Extended Fuel Mixture Screw
$14.00
Sale
Save 5%
2.5 out of 5 stars (2) reviews
Exact Fit
$2 Fast cash

Winderosa
Engine Oil Seal Kit
$39.75
Sale
Save 5%
4.5 out of 5 stars (2) reviews
Exact Fit
$1 Fast cash

Wiseco
Stainless Steel Intake Valve
$39.99
Sale
Save 9%
5 out of 5 stars (2) reviews
Exact Fit
$2 Fast cash

Wiseco
Stainless Steel Exhaust Valve
$59.99
Sale
Save 10%
3 out of 5 stars (2) reviews
Exact Fit
$9 Fast cash

Vertex
4-Stroke Piston Kit - Stock Bore
$312.85
Sale
Save 20%
4.5 out of 5 stars (13) reviews
Exact Fit
New
$7 Fast cash

RM STATOR
Stator
$97.89
Exact Fit

Moose
Carburetor Repair Kit
$51.46
4.5 out of 5 stars (143) reviews
Exact Fit
$10 Fast cash

JE Pistons
Pro Series Piston
$329.99
Exact Fit
$25 Fast cash

JE Pistons
Piston Kit
$329.99
Exact Fit
New
$15 Fast cash

HOT RODS
Connecting Rod Kit
$233.65
Sale
Save 5%
5 out of 5 stars (15) reviews
Exact Fit
$3 Fast cash

HOTCAMS
Valve - Intake
$27.16
Sale
Save 34%
3 out of 5 stars (1) review
Exact Fit
$3 Fast cash

HOTCAMS
Valve - Exhaust
$43.16
Sale
Save 34%
1.5 out of 5 stars (2) reviews
Exact Fit

FilGuard
Stainless Steel Oil Filter
$20.77
Clearance
Save 31%
4 out of 5 stars (14) reviews
Exact Fit
New
$2 Fast cash

Pro X
Steel Exhaust Valve
$50.99
Sale
Save 10%
Exact Fit
$3 Fast cash

Boyesen
Quickshot 3 Accelerator Pump Cover
$113.95
Sale
Save 5%
4.5 out of 5 stars (26) reviews
Exact Fit
$3 Fast cash

Boyesen
Quick Shot 2 Accelerator Pump Cover
$91.15
Sale
Save 5%
4 out of 5 stars (44) reviews
Exact Fit

Athena
Clutch Cover Gasket
$2.77
Sale
Save 72%

Myler's
High Pressure Radiator Cap
$5.00 - $25.00
4 out of 5 stars (6) reviews

Turner Performance Products
Hour Meter
$24.99
Sale
Save 17%
5 out of 5 stars (5) reviews

Turner Performance Products
Wireless Hour Meter
$19.99
Sale
Save 13%
3 out of 5 stars (1) review
$1 Fast cash

Twin Air
Radiator Pressure Cap
$32.99 - $35.95
Sale
Save 8%
4 out of 5 stars (5) reviews

ATV Engine Parts

Keeping your ATV engine in top condition is essential for both performance and longevity. From routine oil changes to complex repairs like fixing a blown motor, having the right parts is crucial. Whether you ride a 2-stroke or 4-stroke ATV, MotoSport has all the engine parts you need to keep your quad running smoothly and ready to hit the trail or track.

Explore our wide selection of big bore kits, clutch kits, piston kits, and timing plug kits. We also carry replacement gaskets, spark plugs, radiators, and more to handle both minor fixes and major engine overhauls. No matter if you're doing regular maintenance or need parts after an engine failure, you’re in the right place.

Our easy-to-use drop-down menus help you quickly find the exact ATV engine parts for your machine. If you need assistance or advice on upgrades, give us a call at 866-667-6288. Our experts are here to help make your next ride your best ride.