All Ultimax snowmobile and ATV/UTV/SxS drive belts are proudly made at the Timken Belts plant located in Springfield, Missouri – in the heart of the USA. We are an American company committed to American manufacturing and standards. Timken belt manufacturing plants are certified as compliant with the International Standard ISO 9001.

No. In 2001, Carlisle Companies, Inc. purchased the Dayco Industrial Belt Division with manufacturing facilities in Springfield, Missouri and Ft. Scott, Kansas. The acquisition by Carlisle included belts for the industrial, agricultural, lawn and garden, and powersports markets that Dayco once served. Among the products acquired by Carlisle were the drive belts that are produced for major OEM snowmobile and ATV manufacturers as well as the leading aftermarket brand, Ultimax. In 2015, Timken acquired the Carlisle belt business which includes Carlisle and Ultimax brand belts. A number of current Timken Belts employees began as Dayco employees, bringing years of valuable belt expertise to the Carlisle and Ultimax brands.

It doesn't matter which way you install the belt the first time, but it is important to keep the belt installed the same direction throughout the life of the belt. If for any reason you have to take the belt off your machine, put it back on in the same rotation direction it was going when it was removed. An easy way to remember this is to always put the belt on so you can read the label on the belt.

Belts should be stored flat in a cool, dry environment (below 85 degrees and relative humidity of 70% or less) with no direct sunlight.

The quality of an Ultimax belt will not change significantly within 7 years when stored under normal conditions. Normal conditions can be defined as temperatures below 85 degrees and relative humidity of 70% or less with no exposure to direct sunlight. Belts will begin to dry out and degrade after 7 years even when stored properly. All Ultimax belts have a date code that show when they were manufactured.

All Ultimax belts have a 4 digit number to identify when they were manufactured. The first 2 numbers indicate the week the belt was produced and the last 2 numbers identify the year. For example, 2716 means the belt was manufactured during the 27th week of 2016.

Belt dimensions can vary from one manufacturer to another based on proprietary design information. Ultimax belts are built to exacting specifications and inspected with calibrated equipment to assure strict dimensional compliance.

Outside circumference and top width have traditionally been published. These dimensions should not be used to determine product functionality and may be more misleading than helpful. Proper fit and performance depend on the thickness of the belt, the bottom width, angle, etc. Ultimax measures the effective length, center distance and ride-out on precision measuring equipment to produce a consistent high quality product.

The next time you measure a belt or compare the width of one belt to another, please realize that the real comparison should be on how the belt fits and performs on the machine.