Moroso Universal Engine Dipstick (MO25973)UNIVERSAL DIPSTICK, TWIST LOCK Twist Lock with 1 4" NPT Mount Part Number: MO25973 Efficient twist lock design eliminates oil leakage, blowing out of handle and prevents crankcase gasses from escaping In Dyno testing, engines equipped with our twist lock dipstick pulled more vacuum than engines equipped with standard, non locking dipstick High temperature nylon handle dissipates heat for checking oil level on hot engines Flexible stick zinc plated,