MerCruiser 10-49845 13-39131 Crankshaft Flywheel Mounting Bolt Set 6pc

Part Number(s) Included 10-49845 Crankshaft Flywheel Mounting Bolt Set This is the earlier style that uses a serrated washer (13-39131) Replaced by 10-845757 > 10-8M0214958 You get the set of 6 like pictured here. (.437-20 x 1) General Application / Compatibility This would have been found on any MerCruiser GM application (effectively 1969-Up) where the flywheel was mounted directly to the crankshaft and had either a perimeter mounted coupler on sterndrives or a perimeter mounted flex-plate for inboard applications. Obviously all of the hub-style couplers from the 1970's & 1980's used studs.  Other Details Freshwater Used Parts Overall Good Condition! Purchase with confidence! GM 120hp 4cyl 2.5L 153cid GM 140hp 4cyl 3.0L 181cid GM 165hp 6cyl 4.1L 250cidMerCruiser "470" 3.7L 165hp / 170hp / 188hp etc. GM 305 350 5.0L 5.7L V8 198hp 200hp 228hp 230hp 260hp GM 262CID V6 4.3L 4.3LX 4.3LXH 4.3LH Gen II + 205hp 185hp 1965 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978