Cylinder Block & Crankcase Assembly for Mercury (4 HP / 4.5 HP) Engine
Reference numbers in this diagram can be found in a light blue row below — scroll down to order.
Each product listed is an OEM or aftermarket equivalent part. [ Example ]
Reference numbers in this diagram can be found in a light blue row below — scroll down to order.
Each product listed is an OEM or aftermarket equivalent part. [ Example ]
# — 78139A80 — GASKET SET ( required per assembly) | ||
27-78139A80 - Engine Overhaul Gasket Set [ More info ] Unavailable |
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#1 — 8694A 3 — CYLINDER BLOCK AND CRANKCASE ASSEMBLY (1 required per assembly) | ||
843-8694A 3 - Cylinder Block, NLA [ More info ] Unavailable |
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#2 — 66021 — STUD (8 required per assembly) — CYLINDER BLOCK, CRANKCASE AND CARBURETOR | ||
#3 — 85500 — DOWEL PIN - CRANKCASE TO CYLINDER BLOCK (2 required per assembly) | ||
#4 — 89275 — FITTING, BLEED DRAIN (1 required per assembly) | ||
#5 — 99126 88 — HOSE, BLEED DRAIN (1 required per assembly) | ||
#6 — 68424 — CLAMP, BLEED HOSE ATTACHING (2 required per assembly) | ||
#7 — 88780 — ELBOW, BLEED DRAIN (1 required per assembly) | ||
22-88780 - Elbow [ More info ] Unavailable |
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#8 — 73280 — SCREW, CRANKCASE TO CYLINDER BLOCK (1-1/2") (2 required per assembly) | ||
#9 — 76621 — SCREW, CRANKCASE TO CYLINDER BLOCK (1") (8 required per assembly) | ||
#10 — 70726 — REED BOCK (1 required per assembly) | ||
70726 - Reed Block,NLA [ More info ] Unavailable |
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#11 — 35836 — REED, INLET VALVE (2 required per assembly) | ||
#12 — 22215 — RETAINER, REED (2 required per assembly) | ||
#13 — 28430 — SCREW, REED AND RETAINER TO BLOCK (1/4") (4 required per assembly) | ||
#14 — 35739 — GASKET, REED BLOCK TO CRANKCASE (1 required per assembly) | ||
#15 — 72961 — BALL BEARING - CRANKCASE (LOWER) (1 required per assembly) | ||
#16 — 56397 — OIL SEAL, CRANKCASE (LOWER) (1 required per assembly) | ||
#17 — 31412A 1 — SHIM ASSEMBLY (AR required per assembly) — UPPER HOUSING TO BLOCK (.002-3-5-10) | ||
#18 — 6352A 1 — BEARING HOUSING ASSEMBLY, UPPER (1 required per assembly) | ||
1132-6352A 1 - Housing,NLA [ More info ] Unavailable |
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#20 — 31410 — ROLLER BEARING - UPPER BEARING HOUSING (1 required per assembly) | ||
31-31410 - Roller Bearing - Upper Bearing Housing [ More info ] |
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#21 — 66301 — OIL SEAL, UPPER BEARING HOUSING (1 required per assembly) | ||
#22 — 20863 — "O"RING, UPPER BEARING HOUSING (1 required per assembly) | ||
#23 — 34598 — CLAMP, HOLD DOWN (2 required per assembly) | ||
#24 — 36205 — SCREW, CLAMP TO BEARING HOUSING (9/16") (4 required per assembly) | ||
#25 — 34731 — SPRING, HOLD DOWN RING CLAMP (4 required per assembly) | ||
#26 — 39002 — SCREW, UPPER BEARING HOUSING (1/2") (4 required per assembly) | ||
#27 — 35658 — COVER, TRANSFER COVER (1 required per assembly) | ||
35658 - Cover, NLA [ More info ] Unavailable |
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#28 — 35657 — GASKET, TRANSFER PORT COVER (1 required per assembly) | ||
#29 — 20720 — SCREW (2 required per assembly) — TRANSFER PORT COVER TO CYLINDER BLOCK (5/8") | ||
#30 — 7070A 1 — COVER ASSEMBLY, CYLINDER BLOCK (1 required per assembly) | ||
1016-7070A 1 - Cylinder Block Cover, NLA [ More info ] Unavailable |
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#31 — 66019 — MOUNT, RUBBER - COVER TO TOP COWL (2 required per assembly) | ||
#32 — 20202 — LOCKWASHER, RUBBER MOUNT (2 required per assembly) | ||
#33 — 22053 — NUT, RUBBER MOUNT TO COVER (2 required per assembly) | ||
#34 — 41615 1 — GASKET, COVER TO CYLINDER BLOCK (1 required per assembly) | ||
#35 — 76630 — SCREW (4 required per assembly) — CYLINDER BLOCK COVER TO CYLINDER BLOCK (1") | ||
#36 — 41614 1 — GASKET, CYLINDER BLOCK TO BAFFLE PLATE (1 required per assembly) | ||
#37 — 46234 — PLATE, BAFFLE - EXHAUST MANIFOLD (1 required per assembly) | ||
#39 — 46171 — COVER, EXHAUST MANIFOLD (1 required per assembly) | ||
#40 — 49668 — SCREW, PLATE/MANIFOLD COVER TO BLOCK (3/4") (6 required per assembly) | ||