Cap, Oil Fill.  For 90~92 ZR-1 LT5. Sold individually. One (1) Oil Fill Cap is required per engine.

Save your money if you can use a generic replacement.  This Oil Fill Cap is a genuine, original cap for the 90~92 model LT5 engines.  later models (93~95) converted to Mobil 1 synthetic oil and the oil weight and cap design changed. 

This is the cap you will need for NCRS judging.  We stumbled across 2 new ones & seriously doubt we will ever see another.

NOTE: This is a NEW, GM OEM part.