Billet Specialties New O-Ring caps are machined from 6061 T6 aluminum. Use the chart below to order the correct cap for your application.
15” Race Series – Tall Cap
This cap is 3.2” in Diameter & 2.345” tall measured from the wheel face.
P/N 999198 Polished & 999198B Black
17” Race Series – Mid Cap
This cap is 3.2” in Diameter & 1.845” tall measured from the wheel face.
P/N 999197 Polished & 999197B Black
18, 20, 22 & 24” Race Series – Tall Cap
This cap is 3.2” in Diameter & 2.345” tall measured from the wheel face.
P/N 999198 Polished & 999198B Black
17x4.5 1Pc Race Series Front – Short Cap
This cap is 3.2” in Diameter & .936” tall measured from the wheel face.
P/N 999181 Polished & 999181B Black
18x5 1Pc Race Series Front – Short Cap
This cap is 3.2” in Diameter & .936” tall measured from the wheel face.
P/N 999181 Polished & 999181B Black
17 x10 Drag Pack 1 Pc Race Series -– Short Cap
This cap is 3.2” in Diameter & .936” tall measured from the wheel face.
P/N 999181 Polished & 999181B Black