Fits 1968–80 Oldsmobile 350–455 and 403 (6.6L) Trans Am & Firebird. This dipstick replaces the OEM factory dipstick tube for a clean, upgraded look. Features a chrome handle paired with a black steel tube for a custom appearance. Dipstick measures 20 inches in length. Note: Always compare markings and length with your stock dipstick before installing to ensure proper fit and oil level accuracy.