Kickstart your Riding Season with Bike Prep and Riding Gear Shop Now
CLOSE
Email Us 503-783-5645
Text Us
Account Order Status
Shipping to US Flag United States
Free shipping over $79
Order Status Cart
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.
Fast Cash Week | Earn $10 When you Spend $99 + $25 When You Spend $199 Shop Now

Dirt Bike Engine Parts

Applied Refinements
Fitment Category
Brand
Color
Discount

Price

Refine

562 Results

$7 Fast cash

Pro Circuit
Water Pump Cover With Impeller
$180.99 - $239.95
Sale
Up to 10%
4.5 out of 5 stars (5) reviews
$15 Fast cash

Pro Circuit
Complete Valve Spring Kit
$132.77 - $507.99
Sale
Up to 10%
5 out of 5 stars (1) review
$11 Fast cash

Pro Circuit
Valve Springs
$71.99 - $378.00
Sale
Up to 10%
$15 Fast cash

Pro Circuit
Titanium Intake Valves
$340.99 - $509.99
Sale
Up to 5%
5 out of 5 stars (1) review
$14 Fast cash

Pro Circuit
Titanium Exhaust Valves
$337.99 - $456.00
Sale
Up to 5%
5 out of 5 stars (2) reviews
$1 Fast cash

Pro Circuit
Hot Start Connector
$26.96
Sale
Save 10%
5 out of 5 stars (14) reviews
$12 Fast cash

Pro Circuit
High Compression Piston
$251.99 - $405.00
Sale
Up to 10%
4.5 out of 5 stars (19) reviews
Video Available
$3 Fast cash
Colors for Pro Circuit Engine Plug Kit

Pro Circuit
Engine Plug Kit
$69.95 - $109.95
4.5 out of 5 stars (12) reviews
$14 Fast cash

Pro Circuit
Coated Intake Tappet
$160.77 - $459.99
Sale
Up to 65%
$13 Fast cash

Pro Circuit
Coated Exhaust/Intake Tappet
$459.99
$13 Fast cash

Pro Circuit
Coated Exhaust Tappet
$459.99
$3 Fast cash

Pro Circuit
Clutch Spring Set
$39.99 - $90.00
5 out of 5 stars (15) reviews
Video Available
$5 Fast cash

Pro Circuit
Clutch Cover
$169.95 - $189.95
4.5 out of 5 stars (14) reviews
Video Available
New
$28 Fast cash

Pro Circuit
Camshaft Set
$714.99 - $924.95
4.5 out of 5 stars (2) reviews
$22 Fast cash

Pro Circuit
Camshaft
$429.99 - $789.99
3.5 out of 5 stars (4) reviews
$1 Fast cash

Polisport
Clutch and Ignition Cover Protector Kit
$11.54 - $48.48
Sale
Up to 79%
Video Available
$4 Fast cash

PC Racing
Flo Reusable Spin-On Oil Filter
$151.95
Sale
Save 5%
5 out of 5 stars (26) reviews
$6 Fast cash

Nihilo
Oil Pump Gear Kit
$199.00
$3 Fast cash

Nihilo
Oil Pump Gear
$109.99
$1 Fast cash

Nihilo
High Pressure 2.0 Bar Radiator Cap
$34.99
$10 Fast cash

Nihilo
Ignition Cover / Case Saver Combo
$209.98 - $234.98
$11 Fast cash

Nihilo
Ignition Cover / Case Saver / Sprocket Cover Combo
$228.97 - $274.97
$2 Fast cash

Nihilo
Water Pump Impeller
$44.99 - $74.99
$1 Fast cash

Nihilo
Water Pump Gear
$39.99 - $42.99
$3 Fast cash

Nihilo
Powervalve Blade
$115.99
$1 Fast cash
Colors for Nihilo Oil Filter Cover

Nihilo
Oil Filter Cover
$27.99 - $29.99
$1 Fast cash
Colors for Nihilo Oil Fill Plug

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

Nihilo
Manual Cam Chain Tensioner
$99.99
5 out of 5 stars (1) review
$4 Fast cash

Nihilo
Interchangeable Head Dome
$130.99
$1 Fast cash
Colors for Nihilo Intake Spacer

Nihilo
Intake Spacer
$34.99
$6 Fast cash
Colors for Nihilo Ignition Cover
+2 more

Nihilo
Ignition Cover
$159.99 - $210.99
$4 Fast cash
Colors for Nihilo High Volume Water Pump Kit

Nihilo
High Volume Water Pump Kit
$154.99
$4 Fast cash

Nihilo
Heavy Duty Pressure Plate
$119.99 - $134.99
$2 Fast cash

Nihilo
Heavy Duty Clutch Springs
$64.99 - $69.99
$2 Fast cash

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

Nihilo
Crank Stuffers
$109.99
$6 Fast cash

Nihilo
Billet Slave Cylinder
$199.99
$6 Fast cash
Colors for Nihilo Billet Clutch Cover

Nihilo
Billet Clutch Cover
$164.99 - $204.99
$7 Fast cash

Nihilo
Billet Aluminum Clutch Basket
$199.99 - $225.99
$1 Fast cash

Nihilo
Beveled Clutch Washer
$24.99
$9 Fast cash

Myler's
SuperCool Radiator Combo
$206.77 - $620.00
Sale
Up to 41%
3.5 out of 5 stars (15) reviews
$2 Fast cash

Modquad
Water Pump Impeller
$44.96 - $71.06
Sale
Up to 10%
5 out of 5 stars (1) review
$3 Fast cash

KTM PowerParts
GPS Antenna Kit
$109.99
$31 Fast cash

KTM PowerParts
150 Factory Kit
$1209.99
$3 Fast cash

KTM PowerParts
Heat Protection
$131.99
$26 Fast cash

KTM PowerParts
Rekluse RadiusX 4.0 Centrifugal Force Clutch Kit
$1039.00
$25 Fast cash

KTM PowerParts
105 Factory Kit
$923.99 - $989.99
$9 Fast cash

KTM PowerParts
Hinson Inner Clutch Hub
$372.99
$6 Fast cash

KTM PowerParts
Hinson Clutch Pressure Plate
$257.99
$34 Fast cash

KTM PowerParts
300 Factory Kit
$1143.99 - $1362.99
$1 Fast cash

KTM PowerParts
Ignition Cover Plug
$34.99
$6 Fast cash

KTM PowerParts
Hinson Outer Clutch Cover
$199.99 - $257.99
$8 Fast cash

KTM PowerParts
Kickstart Kit
$283.99
5 out of 5 stars (5) reviews
$8 Fast cash

KTM PowerParts
Digital Radiator Fan Kit
$289.29 - $329.99
5 out of 5 stars (13) reviews
$1 Fast cash

KTM PowerParts
Clutch Cover Protector
$43.99 - $45.99
4.5 out of 5 stars (5) reviews
$3 Fast cash

KTM PowerParts
Water Pump Repair Kit
$28.37 - $116.92
5 out of 5 stars (1) review
$4 Fast cash
Colors for KTM PowerParts Water Pump Cover

KTM PowerParts
Water Pump Cover
$121.99 - $142.99
2.5 out of 5 stars (3) reviews
$28 Fast cash

KTM PowerParts
Valve Kit
$465.88 - $1096.91
$5 Fast cash

KTM PowerParts
SXS Piston Kit
$196.99
5 out of 5 stars (1) review
$2 Fast cash

KTM PowerParts
SXS NGK Iridium Spark Plug
$79.99

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.