990D0-04K20-CRB SUZUKI ALTERNATOR COVER (SUZUKI SPARES) Carbon Alternator Cover (Matt) Matt finish Carbon Alternator Cover. Part No. 990D0-04K20- CRB Youles Motorcycles are an authorised Suzuki Dealers and sell genuine Suzuki accessories and parts. We are a family run business based in the North West of England. Established in 1985. We have showrooms in Blackburn and Manchester, UK