MerCruiser 16-12601 Camshaft Impeller Stud 470 3.7L 4cyl 165hp 170hp 190hp 85-89 Exhaust Tubes Generally found on MerCruiser 5

Generally found on MerCruiser 5

313259 / 0313259 Thrust Washer

8L 351 engines as they used a completely different distributor housing dimension and physically won't fit into a 351 block

Price is for the pair as pictured of these 3" risers

This would have been found on an assortment of MerCruiser 305 5

MerCruiser 16-12601 Camshaft Impeller Stud 470 3.7L 4cyl 165hp 170hp 190hp 85-89 Exhaust Tubes Generally found on MerCruiser 5Part Number(s) Included MerCruiser 16 12601 Stud (For attaching the Water Pump impeller 47 12600A1) LEFT HAND THREAD General Application Compatibility MerCruiser "470" Applications 1985 1989 using the 47 12600A1 impeller (which threaded on with a reverse thread) & the 466 9410A1 Camshaft 165 hp (1987) 170 hp (1985 1986) 180 hp (1987) 190 hp (1985 1986) 3. 7L 2BBL (1988 1989) 3. 7LX 4BBL (1988 1989) Or any models not mentioned here that meet the