Your search for "radiator guard oil guard" revealed the following:
DUCABIKE | Ducati Hypermotard 698 Mono Rear Brake Reservoir Protection
$35.37Aluminum alloy, laser cut and surface colored anodizingComplete protection for the rear brake fluid reservoir, designed to offer optimal safety...
GILLES TOOLING Engine guard left black for Yamaha | MP-L-Y04.b
$77.00Our engine protectors are the perfect combination of attractive design and protection. To achieve this, they are adapted very precisely...