Ferrea is pleased to offer our Pro-Series Titanium Retainers including sizes that fit both traditional Domestic springs and Sport Compact springs. Precision CNC-machined from aerospace quality titanium, these Pro Retainers are fully heat-treated and finished to exact tolerances, adding strength while offering a 40% weight reduction over conventional steel retainers. Examine the overall quality of Ferreas Pro-Series Retainers and see why professional engine builders demand Ferrea Racing Components.

– Valve Stem Size: 6 mm
– Diameter (A): 24 mm
– Out Step Diam.(B): 18.3 mm
– In Step Diameter (C): 10.79 mm

References: Double Spring-7 Degree Pro CNC- Ferrea Racing Springs #S10148 Use Factory OE valve locks

Replaces OEM Part # 022-109-641-B / 022109641 B / 022 109 641 B / 022109641B