Compatibility: Designed for use with Generation IV & V V8 engines, this oil pressure gauge adapter is not compatible with Generation 3 engines. oil filter: The small-block V8 engines now require the use of a oil filter to function properly. Easy installation: The EN-47971 adapter can be installed in place of the -on oil filter, allowing an existing oil pressure gauge to be attached for engine oil system diagnosis. Engine pre-lubrication: The J-45299 Engine Pre-luber can also be attached to this adapter to pre-lubricate the engine before starting a replacement engine. Vehicle compatibility: This oil pressure gauge adapter fits models including for , for , for , for ATS, for XLR-V, and -V 2006 and later Gen IV/Gen V V8 LGE engines. Color: Blue Material: Metal Package Contents: 1 * Oil pressure gauge adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.