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Perrin Performance engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Perrin Performance lineup with fast shipping and expert fitment support — order with confidence.
Maintain the peak performance of your Perrin Air Oil Separator (AOS) system with this genuine replacement Foam Filter and Diffuser. This specific component is designed for the bottom of the AOS unit and features a 48ppi (pores per inch) density, optimized for effective oil vapor filtration and separation. The red color indicates its specific density and application within the Perrin AOS system. Measuring 2.5 inches in diameter and 0.825 inches thick, with a central hole for mounting, this disc is crucial for the proper functioning of your AOS.
The Air Oil Separator is a vital component for modern performance engines, helping to reduce oil consumption, prevent detonation by keeping intake charge clean, and maintain overall engine health. This replacement filter and diffuser ensures that your Perrin AOS continues to perform its critical function effectively. Regular replacement of this filter can prevent performance degradation and potential issues caused by a clogged or damaged filter. Ensure your engine breathes clean and stays protected with this essential part from Perrin Performance, available at GGCRACING.
| Brand | Perrin Performance |
|---|---|
| Manufacturer part number | X-ASM-ENG-621 |
| GGC SKU | PERX-ASM-ENG-621 |
| UPC / GTIN | X-ASM-ENG-621 |
Use the manufacturer part number when you compare with other listings or ask us to confirm a match.
| Box size | 2.5 × 2.5 × 1 in |
|---|---|
| Shipping weight | 0.009 lb |
Universal fit — check measurements. Compare the dimensions and specifications on this page with your application before you order.
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