JIMS USA - Performance Parts for Harley-Davidson Motorcycles

What are you looking for?

JIMS offers a variety of parts and tools specifically designed for your Harley-Davidson motorcycle. Take a look at our featured categories below, or jump right into our catalog!

What's New?

At JIMS, we are constantly brainstorming new parts and tools for your Harley-Davidson. Take a look at our downloadable catalog.

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Engines

We make high-Performance Twin Cam Race engines in sizes 120 inch, 131 inch, and 135 inch! See our online catalog for more info!

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Transmissions

We manufacture only the highest quality 5 & 6 speed transmissions, for many applications.

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Tools

We take pride in manufacturing the highest quality specialty tools to work on Harley's. See our complete tool section in our catalog.

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Who We Are

From humble beginnings in 1967, JIMS® has grown into one of the industry leaders producing performance parts, accessories, tools, transmissions, and high-performance engines all aimed at enhancing the Harley rider’s experience. Originally, Jim Thiessen worked as a machinist with the aerospace industry. As bikes were brought to the shop in the early days for repairs and mechanical problems, customers would come to Jim looking for hard to find parts, or higher quality American made parts. In the mid to late 70’s Jim committed 100% to V-Twin Motorcycles. Developing parts & processes are his expertise, so naturally, he developed a reputation for precision machining in the motorcycle industry. Starting with just a few manual mills & lathes, JIMS now occupies several buildings totaling 50,000 square feet filled with CNC machines…

Highest Quality

From the beginning, precision and quality have always been the foundation of JIMS® products. We are an ISO 9001:2015 certified company. What this means is, JIMS has implemented the procedures and processes required to ensure products made at JIMS® are safe, reliable, and consistently of top quality.

Great Selection

Since 1967 JIMS has been designing and manufacturing aftermarket parts and tools for the Harley-Davidson Motorcycle. JIMS carries parts and tools for your Knucklehead, Milwaukee-Eight®, and every bike in between.

Professional Team

From our R&D and engineering teams to our skilled craftsmen and machinists, JIMS employees are who carry the team. JIMS currently has over 80 employees and counting, who are talented and committed to providing the best quality parts you can buy.

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Quality, Durability, Precision

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