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Featured Product

JIMS On Bike Valve Spring Compressor for Milwaukee Eight

Part No. 5835 – JIMS® “On Bike” Valve Spring Compressor for Milwaukee-Eight®

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Part No. 5832 & 5833 – JIMS® Balancer Bearing Remover and Installer Tools for Milwaukee-Eight®

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.

New at Jims

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

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!

Engines at Jims

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

Transmissions

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

Transmission at Jims

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

Tools

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

Tools at Jims

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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Born Free Motorcycle Show - JIMS USA

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…

Quality, Durability, Precision

Take a look at our catalog for the tools and parts you need.

View Our Catalog

You won’t regret it.