This is a Non-Vented Chrome Gas Cap For Genuine Harley-Davidson 1973-82 Fat Bob Motorcycles. Chrome. Non-Vented. Replaces Harley-Davidson Part Number: HD 61103-73. Compatible with 1973-1982 Harley Fat Bob Tanks (Left Side). New Old Stock - There are light scratches on the cap (See Photo). However, they are hardly noticeable.