This oil pump priming adapter kit is compatible with all Chevy, GM LS engines: LS1, LS2, LS3, LSX, 4.2L, 4.3L, 5.3L, 6.0L, 6.2L. This kit allows for proper engine pre-lubbing, preventing dry starts after engine services. Kit includes a M16x1.5 hex plug, washer, barbed hose fitting and hose clamp; garden sprayer is not included in this purchase. Simple instructions are included in the product images.