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Dirt Bike Engine Parts

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129 Results

HP Tools
Engine Lock Up Tool
$6.99
Sale
Save 30%
$1 Fast cash

Mikuni
Small Round Main Jet
$14.77 - $22.95
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Up to 33%
$1 Fast cash

Ride Engineering
Tach & Hour Meter With Mount
$30.95
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Save 23%
3.5 out of 5 stars (10) reviews
$2 Fast cash

Turner Performance Products
Hour Meter With Mount
$30.99
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Save 22%
5 out of 5 stars (1) review

Turner Performance Products
Hour Meter Mounting Bracket
$7.99
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Save 20%
5 out of 5 stars (1) review

Mikuni
Jet Needle
$8.77 - $11.95
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Up to 27%
$1 Fast cash

Keihin
Round Main Jets
$16.77 - $23.95
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Up to 30%
2 out of 5 stars (3) reviews

Husqvarna Technical Accessories
Pull Switch Bracket
$6.77
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Save 25%

Bolt
Drain Plug Washer
$5.77 - $13.50
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Up to 62%
1 out of 5 stars (1) review

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.

Related Categories

  1. Dirt Bike Drive
  2. Dirt Bike Brakes
  3. Dirt Bike Exhaust
  4. Dirt Bike Fuel System
  5. Dirt Bike Parts
  6. Dirt Bike Tools & Maintenance
  7. Dirt Bike Suspension
  8. Dirt Bike Air & Oil Filters
  9. Dirt Bike Oils & Fluids
  10. Dirt Bike Tools

Related Articles

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  2. Easy Steps to Increase Horsepower in Your Dirt Bike
  3. Dirt Bike Accessories You Must Have
  4. A Guide to Dirt Bike Oils: 2-Stroke & 4-Stroke
  5. Breaking Bad: How to Break In a Dirt Bike Engine
  6. Motor Check: Preventing Dirt Bike Engine Problems

Frequently Asked Questions

  • How do I choose between two-stroke and four-stroke dirt bike engines?
    Two-strokes are lighter with a quick hit and simpler design for tight, aggressive riding; four-strokes deliver smoother power and better traction for longer stints. Pick the power delivery and feel that matches your terrain and riding style.
  • What engine size works best for my skill level and terrain?
    Smaller-displacement engines are easier to control and build confidence, mid-size balances agility and pull, and larger-displacement suits experienced riders who want strong acceleration and speed. Choose the level of power you can manage in sand, hills, or track conditions.
  • What should I focus on during a dirt bike engine install or swap?
    Ensure clean mating surfaces, proper alignment, and fresh gaskets/seals, then set fueling/jetting or mapping to the engine type. Prime oil and cooling systems, verify a leak-free exhaust connection, and complete a careful break-in before hard riding.
  • How much maintenance should I expect from different dirt bike engines?
    Two-strokes are mechanically simpler but benefit from more frequent top-end attention, while four-strokes emphasize oil changes and valve inspections. Riding in sand, mud, or heat calls for tighter service intervals to preserve power and reliability.
  • Do engine upgrades require other changes on my dirt bike?
    Often yes—expect to adjust fueling or jetting, consider clutch and final-drive tuning, and improve cooling for sustained performance. Match intake and exhaust to the engine’s characteristics to avoid hesitation and heat issues.