MerCruiser OMC Volvo Penta GM 3.0L 140hp 4cyl Engine Main Bearing Caps 1pc Seal Trim Tab Parts MerCruiser Pre-Alpha One "R" Drives

MerCruiser Pre-Alpha One "R" Drives 120-190 HP MerCruiser®--1983-1985

0909923 / 0909923 Input Gear

Quite sure this would also be a suitable replacement for earlier 1986-1996 engines as well

Spark Plug Wires

MerCruiser OMC Volvo Penta GM 3.0L 140hp 4cyl Engine Main Bearing Caps 1pc Seal Trim Tab Parts MerCruiser Pre-Alpha One "R" DrivesPart Number(s) Included Not really a part number for these but basically these are the Main Bearing Caps for the crankshaft on the 1990 & up GM 3. 0L 4cyl 140hp 1 piece rear main seal engines. General Application Compatibility GM 3. 0L I L4 applications 1990 & up with a one piece rear main seal. MerCruiser Gen I & Gen II applications 1990 & Up using this block OMC Cobra Volvo Penta If you are unsure on what type of rear main seal you have please