This listing is for two (2) exhaust manifolds and two (2) 4" risers (elbows) compatible replacements for 1987-Up to some 2002 // Mercruiser MODEL 175-205 - V6, GM 229/262 CID (serial number 0M614999 and below) with raw/fresh water cooling systems without spacers. P/N (2) 51220 (GL51220)+(2) 51140 (GL51140); equivalent to the contents of GLM part number 58222 (GL58222.) **NOT FOR DRY JOINT EXHAUST** IF YOUR ENGINE IS 2002 OR LATER, YOU PROBABLY HAVE DRY JOINT, WHICH IS DIFFERENT. (2) 51140 - Exhaust Elbows - Replaces OEM #807988A2 (2) 51220 - Exhaust Manifolds - Replaces OEM #99746A17 (2) 13990 - Hose Fittings w/Drain Plugs - Replaces OEM #22-806926A1 (2) 30240 - Elbow Gaskets - Replaces OEM #27-863724 (2) 32170 - Manifold Gaskets -Replaces OEM #27-99757 (8)13990 Screws -Replaces OEM #22-806926A1. Note: Ordering this item will require a signature confirmation upon delivery. Please ship to an address where a signature can be obtained from UPS.