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Dirt Bike Engine Parts & Accessories

Have Questions? Watch our Engine Parts and Accessories Guide to Learn More.

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Pro X High Compression Piston Kit -  Dirt Bike Engine Parts and Accessories
Price: $179.99
You Save: $21.00
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Wiseco Pro-Lite Piston Kit - 2-Stroke -  Dirt Bike Engine Parts and Accessories
Price: $107.99 - $306.99

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Pro Circuit High Compression Piston Kit -  Dirt Bike Engine Parts and Accessories
Price: $268.99 - $430.99

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Pro X Piston Kit - 4-Stroke -  Dirt Bike Engine Parts and Accessories
Price: $68.99 - $239.99

Pro X Piston Kit - 2-Stroke -  Dirt Bike Engine Parts and Accessories
Price: $78.99 - $220.99

Vertex 4-Stroke Piston Kit - Stock Bore -  Dirt Bike Engine Parts and Accessories
Price: $126.99 - $271.99

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Rekluse EXP Ball Wedge Kit -  Dirt Bike Engine Parts and Accessories
Price: $99.00

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Rekluse EXP 2.0 Clutch Kit -  Dirt Bike Engine Parts and Accessories
Price: $399.00 - $629.00

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Rekluse Core EXP 2.0 Clutch Kit -  Dirt Bike Engine Parts and Accessories
Price: $899.00

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Rekluse Core EXP 3.0 Clutch Kit -  Dirt Bike Engine Parts and Accessories
Price: $899.00

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Rekluse Friction Disk Kit -  Dirt Bike Engine Parts and Accessories
Price: $99.00

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Rekluse EXP 3.0 Clutch Kit -  Dirt Bike Engine Parts and Accessories
Price: $399.00 - $629.00

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Barnett Clutch Kit -  Dirt Bike Engine Parts and Accessories
Price: $39.77 - $240.99

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Hinson Clutch Fiber, Steel, Spring Kit -  Dirt Bike Engine Parts and Accessories
Price: $179.99
You Save: $20.00
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Rekluse Z-Start Pro Clutch Kit -  Dirt Bike Engine Parts and Accessories
Price: $429.00 - $629.00

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Wiseco Performance Clutch Kit -  Dirt Bike Engine Parts and Accessories
Price: $169.77 - $409.99

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EBC Dirt Racer Clutch Kit -  Dirt Bike Engine Parts and Accessories
Price: $46.77 - $169.99

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Most Recent Engine Parts and Accessories Reviews

Hot Rods Complete Crank Assembly Hot Rods Complete Crank Assembly Hot Rods Complete Crank Assembly Westin1 (El Paso, TX) Excellent purchase"I recently destroyed the stock crank on my '02 KX250, and compared side by side before I ...""I recently destroyed the stock crank on my '02 KX250, and compared side by side before I installed the hot rods crank, this one is noticably lighter than stock. As for stronger and more durable, I'll see, but with a name like Hot Rods, I'm sure there's at least 150 hours before I'll even have to consider inspecting this bad boy."
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HOTCAMS Valve Shim Kit HOTCAMS Valve Shim Kit HOTCAMS Valve Shim Kit 250RGUY (Minneapolis,MN) A MUST HAVE"This kit is sweet! It is so nice to have all sizes at your shop! Saves trips to dealer!!""This kit is sweet! It is so nice to have all sizes at your shop! Saves trips to dealer!!"
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Hinson Steel Clutch Basket Hinson Steel Clutch Basket Hinson Steel Clutch Basket motosport67 (oregon) Hinson Steel Clutch Basket"Great clutch basket, I put this in my TRX450 because my OEM started notching.I only ...""Great clutch basket, I put this in my TRX450 because my OEM started notching.I only have two rides on it and cant wait to see how long it last"
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Wiseco Clutch Pack Kit Wiseco Clutch Pack Kit Wiseco Clutch Pack Kit Maliki (Pa) "great product easy install works perfectly... for the price i think its the best deal for ...""great product easy install works perfectly... for the price i think its the best deal for what you get"
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BikeMaster Spark Plug Protector BikeMaster Spark Plug Protector BikeMaster Spark Plug Protector OldMotocrosser (Utah) Great Product"We all know when you are riding a dirt bike, especially a two stroke, you had better have ...""We all know when you are riding a dirt bike, especially a two stroke, you had better have a spare plug or two, or three. When they are in the cardboard container they come with, they can be damaged by fighting with your tools! This product protects your precious spark plugs from your tools, while in your tool box."
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Vertex 2-Stroke Piston Kit - Stock Bore Vertex 2-Stroke Piston Kit - Stock Bore Vertex 2-Stroke Piston Kit - Stock Bore Deema00 (Napa, CA, USA) 03 CR250 Top End Build"Super Stoked on the Vertex Top End Kit. The power is back! It came with everything needed ...""Super Stoked on the Vertex Top End Kit. The power is back! It came with everything needed for the rebuild. Installation was easy and a breeze. I recommend this set-up for any CR owner. Quality, Super Quick and Great service. From Motosport to my House to My Bike. couldnt be happier to be back riding."
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Is your clutch slipping or dragging?

A dirt bike clutch can take a lot of abuse. A tiny strips of friction material and a few steel plates is all that holds the power of your bike, transferring it to your gearbox and on to your rear wheel. If they become worn or, worst case scenario, the friction pads separate, you'll need a new clutch. Generally, a new clutch will last quite a while even on race bikes, due to new materials being introduced like kevlar and carbon fiber. The Barnett Clutch Kit With Carbon Fiber Friction Plates is one of those, using carbon plates for longer life and better heat resistance. If you want the best of the best, check out the Rekluse Core EXP 2.0 Clutch Kit, which works by incorporating sliding wedges into an expanding friction disk. Wedges provid increased clutch performance at low to mid RPMs over traditional ball-bearing auto-clutches. They also offer a 30-day money back guarantee if it's not for you!

Freshen up your motor!

The simplest way to keep your dirt bike's engine running perfectly is to change the oil and spark plugs at regular intervals. MotoSport has a selection of dirt bike oil filters to fit your preference as well, from the industry leading K&N Oil Filters to Twin Air oil filters. We also have a wide range of tools to make changing your oil easier. We also carry the industry standard NGK Spark Plugs.

Did you see any leaks while you were doing the oil change? Take a few extra moments and replace any worn or leaking gaskets with fresh ones from MotoSport. We have Vesrah gasket kits that have all the seals, gaskets and O-Rings you need to rebuild your whole motor, or you can get specific and head over to out OEM Dirt Bike Parts section to get exactly what you're looking for.

If disaster has struck and your dirt bike motor has had a detrimental failure, don't worry, MotoSport has everything you need to rebuild it better, stronger and faster. We have dirt bike piston kits from Pro-X pistons and Wiseco, along with comlete Top & Bottom End Kits from Hot Rods if you need more than just a piston.

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