


Sparco Steering Wheel Hub Boss Kit Horn Button Retaining Ring
Choose options
Sparco horn button retaining ring is used to attach an Sparco horn button to an Sparco steering wheel.
Comes supplied as standard with all Sparco steering wheel bosses. This is a spare part.
Compatible with all Sparco horn buttons that require a securing plate from the rear of the steering wheel.
The retaining ring is fixed between the Sparco hub kit and steering wheel and allows the horn button to be safely secured in place.
Made in Italy.
Brand | Sparco |
Inner Lip Diameter | 56 mm |
Outer Lip Diameter | 81.5 mm |
Country Of Origin | Italy |
- Retaining Ring

It was 1977 when, in the Formula 1 World Championship, Niki Lauda graduated for the second time world champion with the Ferrari 312 T2. In Turin, three young rally drivers, who dreamed to give the world of motoring more safety and more style, founded SPARCO, acronym of Società Produzione ARticoli COmpetizione.
Since 1977 Sparco S.p.A. develops and produces equipment for the racing environment and counts, to this day, more than 300 partner teams in various world motorsport competitions (F1, Indy, WRC, Nascar, Dakar and many others) and worldwide clients adopting its products. The Sparco Group, since 2000, diversified its activities to strongly enter the carbon fiber automotive components’ industry for the most important super sports car and luxury car’ manufacturers, while in the last years has expanded its business to the gaming-simulation racing industry and to the safety clothing industry (safety footwear and workwear). The group headquarter is in Volpiano (TO).