Mercury 534-3267A18 34-56704A1 Reed Block Assembly Set 20hp 50hp 200 500 1973-77 Pulley - Water Pump 0L 181cid with a 1

0L 181cid with a 1 piece rear oil seal

Hook Latch lower rear port: 315177

For gearcases using the 76865 Shift Crank (Generally 1973-newer)

Has been disassembled and diaphragm has been inspected

Make sure your coupler looks similar to this and is not the style that is much shorter than this one

Mercury 534-3267A18 34-56704A1 Reed Block Assembly Set 20hp 50hp 200 500 1973-77 Pulley - Water Pump 0L 181cid with a 1Part Number(s) Included Mercury 534 3267A18 Main Bearing Assembly Casting 534 3265 Mercury 34 56704A1 Reed Set General Application Compatibility Mercury 200hp 2cyl Outboard 1973 1977 Mercury 500hp 4cyl Outboard 1971 1975 Other Details Freshwater Used Parts Purchase with confidence!