Parts for Mercury Marine 55 HP (3 Cylinder) Cylinder Block & Crankcase Cylinder Block & Crankcase

Revise Search: All Models > 55 HP (3 Cylinder) > 0G290585 - 0G589999 (USA) > Cylinder Block & Crankcase

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View diagram and parts list below. Tap to zoom. Scroll down to order.
Each product listed is an OEM or aftermarket equivalent part. [ Example ]

Engine section

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 ]

#	811209A93	POWERHEAD (1 required per assembly)
		811209A93 - Powerhead MARINE [ More info ] Unavailable
		811209T93 - PH 50/60 3CYL,NLA [ More info ] Unavailable
#	27-812867A97	GASKET SET (1 required per assembly)
		27-812867A97 - Engine Overhaul Gasket Set [ More info ] $110.85 2 In Stock.
#1	883-9755A15	CYLINDER BLOCK (1 required per assembly)
		883-9755A15 - Cylinder Block [ More info ] Unavailable
		883-9755T15 - Cylinder Block, NLA [ More info ] Unavailable
#29	22-32802 1	PIPE PLUG (1 required per assembly)
		22-32802 1 - Plug, Brass, Priced Individually [ More info ] Unavailable
		22-32802 2 - Brass Pipe Plug, Priced Individually [ More info ] $7.30 Available to Order: Usually ships within 10 days.
		18-4263 - Pipe Plug, 1/8-27 NPT, Brass [ More info ] $5.19 $4.70 10+ In Stock.
#30	78799 2	TEMPERATURE SENDER (1 required per assembly)
		78799 2 - Temperature Sender [ More info ] $103.33 5 In Stock.
#2	10-817427 80	SCREW (8 required per assembly)
		10-817427 80 - Screw [ More info ] $4.30 Available to Order: Usually ships within 10 days.
#31	44552	RETAINER (1 required per assembly)
		44552 - Retainer [ More info ] $2.50 1 In Stock.
		889733 - Retainer [ More info ] $5.40 Available to Order: Usually ships within 10 days.
#3	10-817427 30	SCREW (6 required per assembly)
		10-817427 30 - Screw [ More info ] $1.10 $0.94 10+ In Stock.
#4	21-42658	CHECK VALVE (1 required per assembly)
		21-42658 - Check Valve [ More info ] $7.46 7 In Stock.
		21-42658 2 - Check Valve [ More info ] Unavailable
		21-42658 5 - Check Valve [ More info ] $25.17 1 In Stock.
#32	10-812832 1	SCREW (1 required per assembly)
		10-812832 1 - SCREW [ More info ] Unavailable
		10-878609 - Screw [ More info ] Unavailable
#33	12-56681	WASHER (1 required per assembly)
		12-56681 - Washer, (.203 X .500 X .032) [ More info ] $1.67 10+ In Stock.
		128M0204666 - WASHER Note: Priced Individually [ More info ] $1.70 Available to Order: Usually ships within 10 days.
#5	32-99130122	HOSE (16 IN.) (1 required per assembly)
		32-99130122 - Tubing-20 FEET [ More info ] Unavailable
		32-892024122 - Tubing - 20 Feet [ More info ] $46.33 In Stock
#6	21-42623 1	CHECK VALVE (PRESS-IN) (1 required per assembly)
		21-42623 1 - Check Valve [ More info ] $4.40 10 In Stock.
		21-42623 3 - Check Valve [ More info ] $102.32 3 In Stock.
#34	12-49221	WASHER (2 required per assembly) 50/60
		12-49221 - Washer, (.187 X .500 X .062) Neoprene [ More info ] Unavailable
		12-8M0204663 - Washer, Sold Individually [ More info ] $1.20 10+ In Stock.
#35	12-69056	WASHER (2 required per assembly) 50/60
		12-69056 - Washer, (.255 X .620 X .030) Stainless Steel [ More info ] $1.70 4 In Stock.
#7	812888A 1	CARRIER ASSEMBLY (2 required per assembly)
		812888A 1 - Carrier Assembly [ More info ] $11.70 Available to Order: Usually ships within 10 days.
#36	11-816872	WING NUT (2 required per assembly) 50/60
		11-816872 - Wing Nut [ More info ] $2.70 Available to Order: Usually ships within 10 days.
#8	21-42657A 3	CHECK VALVE (2 required per assembly)
		21-42657A 3 - Check Valve Assembly [ More info ] $7.00 Available to Order: Usually ships within 10 days.
#9	10-814776	ADJUSTING SCREW (1 required per assembly)
		10-814776 - Screw [ More info ] $3.10 7 In Stock.
#37	22-99664	ELBOW (1 required per assembly) 50/60
		22-99664 - Elbow [ More info ] Unavailable
		22-99664 1 - Elbow [ More info ] Unavailable
		22-99664 2 - Elbow [ More info ] $2.60 5 In Stock.
#37	22-78279	ELBOW (55) (1 required per assembly)
		22-78279 - Elbow [ More info ] Unavailable
		22-78279 1 - Elbow [ More info ] Unavailable
		22-78279 2 - Elbow [ More info ] $6.80 Available to Order: Usually ships within 10 days.
#10	11-40021 2	JAM NUT (1 required per assembly)
		11-40021 2 - Nut [ More info ] $2.80 10+ In Stock.
#11	42942	CAP (1 required per assembly)
		42942 - Nylon Cap [ More info ] $1.80 Available to Order: Usually ships within 10 days.
#38	19074 1	COVER (1 required per assembly)
		19074 1 - COVER [ More info ] Unavailable
		8M0036859 - Cover [ More info ] $33.92 Available to Order: Usually ships within 10 days.
#39	22-65857	FITTING (50/60) (1 required per assembly)
		22-65857 - Fitting [ More info ] $5.50 10+ In Stock.
		22-56759 - Fitting [ More info ] $11.20 Available to Order: Usually ships within 10 days.
#12	17-43044	DOWEL PIN (LOCATING) (1 required per assembly)
		17-43044 - Pin -Dowel-solid [ More info ] $2.40 1 In Stock.
#40	812996 2	COVER (1 required per assembly) 55
		812996 2 - Cover [ More info ] Unavailable
#13	17-812870	DOWEL PIN (BEARING RACE) (3 required per assembly)
		17-812870 - Pin, Center Main, Dowel [ More info ] Unavailable
		17-812870 1 - Pin -Dowel [ More info ] Unavailable
		178M0084653 - PIN - DOWEL [ More info ] $3.50 Available to Order: Usually ships within 10 days.
#14	18597	COVER (1 required per assembly)
		18597 - Cover [ More info ] $14.00 10+ In Stock.
#41	25-48462	O-RING (1 required per assembly) 55
		25-48462 - O-ring, (.614 X .070) [ More info ] $1.70 4 In Stock.
#42	10-40011108	SCREW (2 required per assembly) 55
		10-40011108 - Screw [ More info ] $1.70 Available to Order: Usually ships within 10 days.
#15	10-817427 50	SCREW (2 required per assembly)
		10-817427 50 - Screw [ More info ] Unavailable
#16	27-812867 2	GASKET (1 required per assembly)
		27-812867 2 - Gasket [ More info ] $7.00 4 In Stock.
#43	821595	LIFTING EYE (1 required per assembly) 55
		821595 - Lifting Eye, NLA [ More info ] $4.50 8 In Stock.
#44	10-821606	SCREW (55MM) (1 required per assembly) 55
		10-821606 - SCREW,NLA [ More info ] Unavailable
#17	16-816194 6	STUD (2 required per assembly)
		16-816194 6 - Stud [ More info ] Unavailable
		16-816194 9 - Stud [ More info ] $11.70 Available to Order: Usually ships within 10 days.
#45	11-40026 5	NUT (1 required per assembly) 55
		11-40026 5 - NUT Note: Priced Individually [ More info ] Unavailable
		11-40136 8 - Nut - Priced Individually [ More info ] $5.10 2 In Stock.
#18	22-18598	PIPE PLUG (4 required per assembly)
		22-18598 - PLUG [ More info ] Unavailable
		22-18598 1 - Pipe Plug [ More info ] $2.70 Available to Order: Usually ships within 10 days.
#19	10-817430110	SCREW (6 required per assembly)
		10-817430110 - Screw [ More info ] $3.70 10+ In Stock.
#20	10-40011149	SCREW (25MM - QTY. OF 3 ON 55) (4 required per assembly)
		10-40011149 - Screw [ More info ] $2.60 Available to Order: Usually ships within 10 days.
#21	10-12896	SCREW (55) (1 required per assembly)
		10-12896 - Screw [ More info ] $1.00 Available to Order: Usually ships within 10 days.
#22	812882 1	POPPET VALVE (1 required per assembly) 50/60
		812882 1 - Poppet [ More info ] $8.90 Available to Order: Usually ships within 10 days.
#23	812887 1	DIAPHRAGM (1 required per assembly) 50/60
		812887 1 - Diaphragm [ More info ] Unavailable
		812887002 - Poppet Diaphragm [ More info ] $9.50 10+ In Stock.
#24	12-94182	WASHER (1 required per assembly) 50/60
		12-94182 - Washer [ More info ] $3.50 2 In Stock.
#25	10-69570	SCREW (1 required per assembly) 50/60
		10-69570 - Screw [ More info ] $1.70 10+ In Stock.
#26	24-90392	SPRING (1 required per assembly) 50/60
		24-90392 - Spring, Poppet Valve [ More info ] $23.83 Available to Order: Usually ships within 10 days.
#26	24-18336	SPRING (1 required per assembly) (60 PONTOON/BIG FOOT) 50/60
		24-18336 - Spring [ More info ] Unavailable
		24-42996 - Spring, Compression - Poppet Valve [ More info ] $1.70 3 In Stock.
#27	14586	THERMOSTAT (120 DEGREES) (1 required per assembly) 50/60
		14586 - Thermostat, 120 Degrees [ More info ] $35.17 In Stock
		18-3549 - Thermostat, 120 Degrees, 14586 [ More info ] $27.69 $25.41 10+ In Stock.
#28	27-62386	GASKET (1 required per assembly) 50/60
		27-62386 - Thermostat Gasket [ More info ] Unavailable
		27-62386001 - Thermostat Gasket [ More info ] $2.50 10+ In Stock.
		27-8M0204714 - Thermostat Gasket, Priced Individually [ More info ] $2.80 10+ In Stock.
		18-0182-9 - Gasket 27-62386 2-Pack [ More info ] $4.13 $3.19 Available to Order: Usually ships within 10 days.