OTC's 7297 Oil Pressure and Prelube Adapter enables technicians to easily diagnose engine oil system issues. Adapter installs in place of the spin-on oil filter to allow existing oil pressure gauges (not included) to be attached to test oil system pressure. Adapter can also be used to connect prelube equipment to the engine to ensure safe initial startup. Applications include: 2005 and newer GM 4.8L, 5.3L, 6.0L, and 6.2L Gen IV and V engines. Similar to OE tool number EN-47971. Value is at the core of the OTC tool and equipment portfolio. For a simple repair or the most complex drivability concern, these award-winning tools universally solve problems faster, and at better value, than any other product line available. Whether it's a specialty tool or unique piece of service equipment, OTC provides top solutions to modern automotive service challenges while increasing technicians' productivity and shop profits.