This bayonet-style oil level gauge provides a visual check of the engine oil level in the host tractor. It is inserted into the dipstick tube and extends into the oil sump, allowing the operator to read the oil level against the marked graduations on the blade. The gauge is manufactured to the original geometry, ensuring the markings align correctly with the full and low oil levels in the sump. A worn or illegible gauge should be replaced to avoid misreading the oil level, which can lead to insufficient lubrication or overfilling.