This NOS GM 526892 dipstick tube fits 1977-1981 Buick and Pontiac models with a 301 engine. It is an OEM part and comes with the dipstick tube only. The brand is GM and the manufacturer part number is 526892. The type of tube is a tube and the items included are the dipstick tube only. This part is perfect for car enthusiasts who are looking for a high-quality replacement for their old, worn out dipstick tube. It is an essential component of the engine oil system and ensures accurate readings of the oil level.