Compatible with 1.9 & 2.1 WBX engines, 4 required 191mm Stud sold individually for flexible ordering Ensure your engine's reliability with our 191mm Cylinder Head Stud, designed specifically for 1.9 & 2.1 WBX engines. Each stud is crafted to ensure a secure fit and optimal performance, providing the strength you need for a solid engine assembly. With 4 studs required per engine, these durable components are sold individually, allowing you to purchase exactly what you need. Whether you're replacing worn-out studs or completing a rebuild. .