This is a "machine-selection optional" part.Please choose a vehicle to see the options specific to your machine,choose from all of the options below and add to cart.
User Tip: If you're unsure of your vehicle type, you may skip the machine type selection box.
1991 HARLEY-DAVIDSON® Softail Heritage FLST®
Delete this machine from profileSee this part for this machine profile
"Customer service is priority #1 at Rocky Mountain ATV/MC. We value our customers and strive to be the best shopping experience- when you buy from us, you are buying lifetime service."
-Dan Thomas, CEO and Founder
We take pride in offering no hassle returns. In the event of a return, please call, email or chat with us to receive a solution to the problem. For apparel that doesn't fit quite right, Click here to see our Fit Guaranteed Program.
We will stand behind all products we sell with regards to manufacturing defects in workmanship and material. Most products are limited to the manufacturer's warranty. However, we will do everything in our power to take care of the problem.
Live chat: Click here
(Leave email if after hours)
Email:sales@rockymountainatv.com
Call us: 1 800 336-5437
7am-7pm Mon-Fri 8am-4pm Sat (Mountain Standard Time)

Each review submitted enters you into a $100 gift card monthly drawing, and a $500 gift card quarterly drawing!
Comments On Jun 12, 2013:Before changing the spark plug, it took several attempts to start my bike. Now with this new plug in it, it starts on the first and second kick!
Was this review helpful?
Comments On Jun 09, 2013:NGK are the best plugs. NGK Iridium are even better is start better and I even seen better response and fuel economy.
Was this review helpful?
Comments On Jun 04, 2013:It's a spark plug...can't ride without one.
Was this review helpful?
Comments On Jun 03, 2013:thats what it does make fire
Was this review helpful?
Comments On May 31, 2013:No huge power gains, but it seems to last longer
Was this review helpful?
Comments On May 28, 2013:Working well so far. Makes the ridiculously hard CRF450R cold start a little easier.
Was this review helpful?
Comments On May 20, 2013:I have this in 4 different bikes and haven't had any problems yet..
Was this review helpful?
Comments On May 20, 2013:So far have not had any fouled plug issues and seems to continue doing its job.
Was this review helpful?
Comments On May 13, 2013:I installed this plug last week to replace the factory spark plug. Have not had any issues so far.
Was this review helpful?
Comments On May 13, 2013:This is the spark plug for the 2004 Rincon 650. Works great and helps keep the machine running great.
Was this review helpful?
Stay Connected!

© 2013 Rocky Mountain ATV, Inc. All rights reserved. Unauthorized use of any images, thumbnails, illustrations, descriptions, or editorial content without written permission is strictly prohibited. Prices are subject to change without notice.
See our street site JakeWilson.com for: Motorcycle Parts, Motorcycle Accessories, Motorcycle Tires, Motorcycle Helmets and more.
Take a look at our most popular areas: ATV parts | ATV Accessories | ATV Tires | Dirt Bike Parts | Dirt Bike Accessories | Dirt Bike Motocross Tires | Motocross Gear | Motorcycle Accessories | Motorcycle Exhaust | Motorcycle Helmets | Motorcycle Brakes.

