Easily diagnose engine oil system issues. This adapter installs in place of the spin-on oil filter to allow existing oil pressure gauges to be attached to test oil system pressure. Can also be used to connect prelube equipment to the engine.Applications include:2005-later GM Gen IV engines; 4.8L, 5.3L, 6.0L, 6.2L2005-later GM Gen V engines; 4.8L, 5.3L, 6.0L, 6.2LSimilar to OE tool #EN-47971.
