Rostar has manufactured top quality automotive filters since 1979.  We manufacture to your specifications and ship on-time.  If you are looking for a dependable, predictable business partner, look no further.

Cabin Filters

Complete Cabin Filter Program

Rostar has 99% coverage for cabin filters through 2016 applications. We have the most complete cabin filter program in North America, and we have more 2017 applications than anyone, with new items in the pipeline all the time. Our time to market is swift so our customers are the first to offer new filters to their customers; something we know they love. We also make fuel filters, air filters, and oil filters at your request.

Rostar is routinely the first aftermarket supplier to develop new SKU’s of all types of filters. Our agility and focus keeps our customers ahead of competitors when it comes to coverage.


Made to Order - FAST

Rostar engages in exclusive manufacturing and supply agreements when appropriate, so we can be your extended manufacturing arm for special projects. We commonly work on high profile or sensitive projects that we cannot discuss.

Our automated production line in Oxnard requires just 20 minutes to changeover so we produce small batches of filters that would be a disaster for other manufacturers to make. We use a pull system rather than a push system for production.  In other words, we run lean.

For the filters we make internationally, we supply these in a combination of direct import (direct from factory overseas to your door) and domestically supplied delivery. Rostar will hold inventory for you in California so you don’t have to. We can reduce your inventory levels and your time to market.

Fuel Filters

Your Filters, Not Ours

Our business is investing in our customers’ businesses. We invest in tooling, boxes, inventory, equipment and technology to support our customers in a reliable way. We supply your branded boxes, unbranded boxes (generic white or brown) or in bulk.

Rostar has no retail presence or direct outlet to consumers or end users of automotive filters. You may have not heard of us, but neither have your customers.

Full Range of Automotive Filters

  • Cabin Filters
  • Air Filters
  • Diesel and Gasoline Fuel Filters
  • Oil Filters
  • Breathers
  • Oil Drain Plugs and Gaskets

Motorcycle Filters

  • Air Filters
  • Oil Filters
  • Fuel Filters
  • Breathers

Have a question? Contact us today.

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Rostar Filters

Rostar is the U.S. aftermarket’s largest independent cabin filter manufacturer. We supply a combination of direct import and domestic-supplied filters to keep our customers price competitive, up-to-date, and flexible enough to handle the normal swells of a living, breathing inventory.

We manufacture and supply cabin filters, air filters, diesel and gasoline filters, oil filters, drain plugs and gaskets in the U.S., China and Taiwan.

Made in California