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My Ride: 2024 KTM 125XC
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Dirt Bike Engine Parts

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124 Results

Exact Fit
$7 Fast cash

Vertex
Complete Gasket Kit With Seals
$133.27
Sale
Save 5%
4 out of 5 stars (29) reviews
Exact Fit
$7 Fast cash

Vertex
Top End Gasket Kit
$70.94
Sale
Save 5%
5 out of 5 stars (16) reviews
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
New
$8 Fast cash
Colors for Boyesen Supercooler Water Pump Kit

Boyesen
Supercooler Water Pump Kit
$189.99
Sale
Save 5%
4.5 out of 5 stars (119) reviews
Exact Fit
New
$10 Fast cash

Vertex
Top End Piston Kit With Gaskets
$208.76
Sale
Save 10%
Exact Fit
$7 Fast cash

Wiseco
2-Stroke Piston
$156.99
Sale
Save 10%
4.5 out of 5 stars (259) reviews
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
New
$5 Fast cash

Pro X
Crankshaft Bearing and Seal Kit
$80.96
Sale
Save 10%
5 out of 5 stars (1) review
Exact Fit
New
$8 Fast cash

Vertex
2-Stroke Piston
$170.96
Sale
Save 10%
4.5 out of 5 stars (167) reviews
Video Available
Exact Fit
New
$7 Fast cash

HOT RODS
Transmission Bearing Kit
$132.00
Sale
Save 5%
4.5 out of 5 stars (19) reviews
Video Available
Exact Fit
New
$40 Fast cash

HOT RODS
Bottom End Kit
$506.56
Sale
Save 15%
Exact Fit
$6 Fast cash

Pro X
2-Stroke Piston
$104.99
Sale
Save 16%
4.5 out of 5 stars (62) reviews
Exact Fit
$7 Fast cash

Pro X
Connecting Rod Kit
$107.99
Sale
Save 10%
Exact Fit
$8 Fast cash

Pro X
Complete Clutch Plate Set
$125.99
Sale
Save 10%
4 out of 5 stars (5) reviews
Exact Fit
$18 Fast cash

Hinson
Clutch Cover
$169.99
5 out of 5 stars (48) reviews
Video Available
Exact Fit
New
$1 Fast cash

All Balls
Counter Shaft Seal Kit
$27.66
Sale
Save 5%
4 out of 5 stars (73) reviews
Video Available
Exact Fit
New
$4 Fast cash

Vertex
Water Pump Rebuild Kit
$40.54
Sale
Save 5%
4 out of 5 stars (11) reviews
Exact Fit
New
$6 Fast cash

HOT RODS
Crank Bearings And Seals Kit
$152.90
Sale
Save 5%
4.5 out of 5 stars (36) reviews
Video Available
Exact Fit
$1 Fast cash
Colors for Ride Engineering Oil Filler Plug

Ride Engineering
Oil Filler Plug
$21.95
Sale
Save 8%
4 out of 5 stars (9) reviews
Video Available
Exact Fit
New
$48 Fast cash

Rekluse
RadiusCX 4.0 Clutch Kit
$1499.00
Exact Fit
$2 Fast cash

Athena
Water Pump Gasket Kit With Bearings
$29.99
Sale
Save 9%
5 out of 5 stars (3) reviews
Exact Fit
New
$7 Fast cash

Rekluse
Clutch Cover
$189.00
4.5 out of 5 stars (7) reviews
Exact Fit
$1 Fast cash

Twin Air
Radiator Sleeve
$44.99
Sale
Save 15%
3 out of 5 stars (2) reviews
Exact Fit
$4 Fast cash

VForce
4X Reed Valve System
$148.50
Sale
Save 10%
Exact Fit
New
$2 Fast cash

All Balls
Slave Cylinder Rebuild Kit - Clutch
$73.31
Sale
Save 5%
3 out of 5 stars (7) reviews
Video Available
Exact Fit
$8 Fast cash

KTM PowerParts
Digital Radiator Fan Kit
$289.29
5 out of 5 stars (13) reviews
Exact Fit
$8 Fast cash
Colors for Bullet Proof Designs Radiator Guards

Bullet Proof Designs
Radiator Guards
$234.00
4.5 out of 5 stars (12) reviews
Exact Fit
$6 Fast cash

Trail Tech
Fan Kit
$219.95
4 out of 5 stars (4) reviews
Exact Fit
New
$15 Fast cash

HOT RODS
Connecting Rod Kit
$144.35
Sale
Save 5%
5 out of 5 stars (15) reviews
Video Available
Exact Fit
$9 Fast cash

Athena
Top End Gasket Kit
$73.99
Sale
Save 10%
4.5 out of 5 stars (3) reviews
Exact Fit
$1 Fast cash

KTM PowerParts
Factory Oil Fill Plug
$24.99
5 out of 5 stars (2) reviews
Exact Fit
$8 Fast cash

Athena
Complete Gasket Kit With Oil Seals
$187.99
Sale
Save 10%
4 out of 5 stars (1) review
Exact Fit
$2 Fast cash

Athena
Race Gasket Kit
$13.95
Exact Fit
$34 Fast cash

Rekluse
Core Manual TorqDrive
$1029.00
5 out of 5 stars (12) reviews
Video Available
Exact Fit
$2 Fast cash

VForce
4X Replacement Reeds
$58.50
Sale
Save 10%
Exact Fit
$1 Fast cash

Turner Performance Products
Ignition Wire Guard
$27.99
Sale
Save 7%
Exact Fit
$1 Fast cash

Turner Performance Products
Clutch Slave Cylinder Guard
$39.99
Sale
Save 7%
Exact Fit
$4 Fast cash
Colors for Turner Performance Products Billet Radiator Guard

Turner Performance Products
Billet Radiator Guard
$159.99
Sale
Save 6%
Exact Fit
New
$13 Fast cash

Rekluse
Apex Clutch Pack
$349.00
Exact Fit
New
$39 Fast cash

Rekluse
Apex Clutch
$1199.00
Exact Fit
$13 Fast cash
Colors for Rekluse Upgrade Kit - EXP 3.0 To 4.0

Rekluse
Upgrade Kit - EXP 3.0 To 4.0
$449.00
Exact Fit
$17 Fast cash

Rekluse
Replacement Clutch Pack - Radiuscx
$399.00
Exact Fit
$10 Fast cash

Rekluse
Replacement Clutch Pack - Core Manual Torqdrive
$299.00
Exact Fit
New
$9 Fast cash

Rekluse
Manual Slave Cylinder
$219.00
4.5 out of 5 stars (5) reviews
Exact Fit
New
$54 Fast cash

Rekluse
RadiusCX Clutch Kit
$1299.00
4.5 out of 5 stars (30) reviews
Exact Fit
$2 Fast cash

Rekluse
Slave Cylinder Guard
$89.00
5 out of 5 stars (4) reviews
Exact Fit
$1 Fast cash

Nihilo
High Pressure 2.0 Bar Radiator Cap
$34.99
Exact Fit
$2 Fast cash

Nihilo
Water Pump Impeller
$74.99
Exact Fit
$1 Fast cash
Colors for Nihilo Oil Fill Plug

Nihilo
Oil Fill Plug
$22.99
3 out of 5 stars (1) review
Exact Fit
$4 Fast cash

Nihilo
Interchangeable Head Dome
$130.99
Exact Fit
$2 Fast cash

Nihilo
Heavy Duty Clutch Pin Set
$74.99
Exact Fit
$3 Fast cash

Nihilo
Crank Stuffers
$109.99
Exact Fit
$6 Fast cash
Colors for Nihilo Billet Clutch Cover

Nihilo
Billet Clutch Cover
$199.99
Exact Fit
$5 Fast cash

KTM PowerParts
Enduro Engineering Radiator Guards
$179.99
Exact Fit
$31 Fast cash

KTM PowerParts
150 Factory Kit
$1209.99
Exact Fit
$3 Fast cash

KTM PowerParts
Heat Protection
$131.99
Exact Fit
$2 Fast cash

KTM PowerParts
Engine Brace Set
$86.99
Exact Fit
$6 Fast cash

KTM PowerParts
Hinson Outer Clutch Cover
$257.99
Exact Fit
$4 Fast cash
Colors for KTM PowerParts Water Pump Cover

KTM PowerParts
Water Pump Cover
$131.99
2.5 out of 5 stars (3) reviews
Exact Fit
$10 Fast cash

Hinson
Inner Clutch Hub
$319.99
5 out of 5 stars (8) reviews
Video Available

Dirt Bike Engine

Staying on top of general maintenance goes a long way towards the life of your 2-stroke or 4-stroke dirt bike engine. Eventually though, dirt bike engine parts break down, seize up and need replacing. MotoSport carries what you need for the simple jobs like oil changes or the major overhauls like a complete engine rebuild or replacing the clutch on your dirt bike. So, don't let a slipping clutch or blown motor ruin your planned ride day. We stock the top names in aftermarket dirt bike engine parts or stick with the proven performance of OEM. We carry a full line of dirt bike engine parts so you can grab everything you need right here. Replace the blown motor with a piston kit from Wiseco, Vertex or Wrench Rabbit among other popular brands. Smashed radiator? We'll get you back riding in no time. First things first, extend the life of the motor by keeping up on oil and filter changes. We've got gaskets to take care of that eventual leak, too. Find all the necessary dirt bike engine parts you need at MotoSport. If you need help finding a specific engine part for your dirt bike or have a question on upgrades, or using aftermarket verses OEM dirt bike engine parts, give one of our gearheads a call at 503-783-5645 who can help answer any questions, provide advice and even some instructions on installation.