Motorcycle Engine Parts & Accessories

Electrosport Regulator/Rectifier - Motorcycle Engine Parts & Accessories Electrosport Regulator/Rectifier $79.95 - 109.95
4 out of 5 stars
$5
Powerstands Racing Manual Cam Chain Tensioner - Motorcycle Engine Parts & Accessories Powerstands Racing Manual Cam Chain Tensioner $54.99
HOTCAMS Valve Shim Kit - Motorcycle Engine Parts & Accessories HOTCAMS Valve Shim Kit SALE $47.99 - 71.99 Save up to 20%
4.8 out of 5 stars
$5

Powerstands Racing Crank Case Breather - Motorcycle Engine Parts & Accessories Powerstands Racing Crank Case Breather $68.99 - 89.99
Wiseco Valve Shim Kit - Motorcycle Engine Parts & Accessories Wiseco Valve Shim Kit SALE $59.99 - 94.99 Save up to 8%
5 out of 5 stars
$5
Sato Racing Round Style Oil Filler Cap With Quick Wrench - Motorcycle Engine Parts & Accessories Sato Racing Round Style Oil Filler Cap With Quick Wrench $54.00 - 57.00

Trail Tech Engine Temperature Meter - Spark Plug Sensor - Motorcycle Engine Parts & Accessories Trail Tech Engine Temperature Meter - Spark Plug Sensor SALE $44.99 Save 10%
5 out of 5 stars
GB Racing Clutch Cover - Motorcycle Engine Parts & Accessories GB Racing Clutch Cover $71.98 - 123.67
$5
GB Racing Stator Cover - Motorcycle Engine Parts & Accessories GB Racing Stator Cover $77.88 - 131.46
$5

Graves Generator Case Cover - Motorcycle Engine Parts & Accessories Graves Generator Case Cover SALE $67.99 - 236.99 Save up to 9%
5 out of 5 stars
$10
Graves Right Side Oil Pump Case Cover - Motorcycle Engine Parts & Accessories Graves Right Side Oil Pump Case Cover SALE $71.99 - 121.99 Save up to 10%
$5
EBC Street Racer Clutch Kit - Motorcycle Engine Parts & Accessories EBC Street Racer Clutch Kit SALE $70.99 - 138.99 Save up to 20%
5 out of 5 stars
$5

GB Racing Water Pump Cover - Motorcycle Engine Parts & Accessories GB Racing Water Pump Cover $73.49
QuadBoss Starter Motor - Motorcycle Engine Parts & Accessories QuadBoss Starter Motor SALE $71.99 - 289.99 Save up to 9%
2.3 out of 5 stars
$10
GB Racing Pulse Cover - Motorcycle Engine Parts & Accessories GB Racing Pulse Cover $59.46 - 80.13

WPS Starter Motor - Motorcycle Engine Parts & Accessories WPS Starter Motor SALE $58.99 - 187.99 Save up to 9%
5 out of 5 stars
$5
Sato Racing Alternator Cover - Motorcycle Engine Parts & Accessories Sato Racing Alternator Cover $75.00
Sato Racing Reverse Shift Kit - Motorcycle Engine Parts & Accessories Sato Racing Reverse Shift Kit $48.00 - 75.00

QuadBoss Starter Repair Kit With Brush Holder - Motorcycle Engine Parts & Accessories QuadBoss Starter Repair Kit With Brush Holder SALE $27.99 - 75.99 Save up to 10%
Graves Engine Crankcase Cover - Motorcycle Engine Parts & Accessories Graves Engine Crankcase Cover SALE $67.99 Save 9%
Woodcraft Starter Idle Gear Cover - Motorcycle Engine Parts & Accessories Woodcraft Starter Idle Gear Cover $56.99 - 80.74
4 out of 5 stars

Kuryakyn Clutch Top Cover - Motorcycle Engine Parts & Accessories Kuryakyn Clutch Top Cover SALE $62.99 Save 10%
GB Racing Crank Cover - Motorcycle Engine Parts & Accessories GB Racing Crank Cover $62.88
GB Racing Crankshaft End Cover - Motorcycle Engine Parts & Accessories GB Racing Crankshaft End Cover $62.58

Woodcraft GP Shift Conversion Kit For Woodcraft Rearset - Motorcycle Engine Parts & Accessories Woodcraft GP Shift Conversion Kit For Woodcraft Rearset $48.44 - 128.24
Sato Racing Coolant Cap - Motorcycle Engine Parts & Accessories Sato Racing Coolant Cap $42.00
Yana Shiki Hayabusa Oil Cooler Cover - Motorcycle Engine Parts & Accessories Yana Shiki Hayabusa Oil Cooler Cover CLEARANCE $44.99 Save 50%

EBC Clutch Springs - Motorcycle Engine Parts & Accessories EBC Clutch Springs SALE $7.99 - 40.79 Save up to 20%
4.3 out of 5 stars

Most Recent Engine Parts and Accessories Reviews

K&N Spin-on Oil Filter K&N Spin-on Oil Filter Mark - Huntington Beach, CA 5 out of 5 stars No doubt the best "I only use K&N filters on my sport bike, these things are great. Easy to take off on account of the hex end and never had any problems. Good price as well!"
See all reviews for this product
Rekluse EXP 3.0 Clutch Kit Rekluse EXP 3.0 Clutch Kit GmfB 4 out of 5 stars No more stalling "The single reason I bought this was to prevent stalling on hard braking into turns when I didn't pull in the clutch. It addressed that perfectly. Fairly easy to install but took a little time. The directions included with the exp were great. I HIGHLY recommend following them step by step. Also, watch the video, it helps."
See all reviews for this product

Is your clutch slipping or dragging?

A Motorcycle clutch takes a heck of a lot of abuse. A few millimeters of friction material and a few steel plates is all that holds all the power of your bike, transferring it to your gear stack and ultimately 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 a long time even on track-only bikes, due to new materials being introduced like kevlar and carbon fiber. The EBC Street Racer clutch kit is one of those, impregnating their friction pads with kevlar for higher friction, longer life and better heat resistance. If you need a full kit that includes the drive plates (the flat steel plates that don't have friction material) as well as uprated springs, have a look at the Barnett Clutch Kit.

While you're at it, why not replace your clutch & stator covers with stronger, lighter and better looking aftermarket ones? Woodcraft makes replacement covers for just about anything that feature built in replaceable slider pucks to protect your engine in a crash. Just want something that looks trick? Check out the Yana Shiki Clutch cover with window!

Freshen up your motor!

The simplest way to keep your motorcycle's motor happy is to change the oil regularly. We have a selection of oil filters to fit your preference as well, from the industry leading K&N Oil Filters to Yamaha Genuine filters. We also have tools like the Motion Pro Oil Filter Wrench to make removing the filter easier, because no one likes having to stab them with a screwdriver to get them off.

Notice any leaks while you're in there? Take a few extra moments and replace any worn or leaking gaskets with fresh ones from MotoSport. We have Vesrah complete 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 motorcycle parts section to get exactly what you're looking for.