Parts for Mercury Marine Model 400 40 HP (2 Cylinder) Cylinder Block & Crankcase Assembly

Revise Search: All Models > Model 400 40 HP (2 Cylinder) > 2874704 - 3336257 (USA) > Cylinder Block & Crankcase Assembly

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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 ]

#1	1139-3867A 1	END CAP ASSEMBLY, UPPER (1 required per assembly) SERIAL 00000000-02880153
		1139-3867A 1 - End Cap Assembly [ More info ] $6.00 2 In Stock.
		1139-4453A 1 - End Cap Assembly, NLA [ More info ] $48.00 2 In Stock.
#1	1139-4453A 1	END CAP ASSEMBLY, UPPER (1 required per assembly) SERIAL 02973754-09999999
#2	25-47254	"O" RING, UPPER END CAP (1 required per assembly)
		25-47254 - O-ring, Upper End Cap [ More info ] $5.90 2 In Stock.
		18-7961 - O-Ring 25-97386 [ More info ] $3.99 10+ In Stock.
#3	26-29476	OIL SEAL, UPPER END CAP (1 required per assembly)
		26-29476 - Oil Seal - Priced Individually [ More info ] Unavailable
		26-41953 - Oil Seal - Priced Individually [ More info ] $19.45 3 In Stock.
		18-2016 - Seal, 26-41953 [ More info ] $13.99 6 In Stock.
#4	10-30225	SCREW, UPPER END CAP MOUNTING (1") (4 required per assembly)
		10-30225 - Screw w/ Lw - Priced Individually [ More info ] $0.90 4 In Stock.
#5	851-3870A 6	CYLINDER BLOCK AND CRANKCASE ASSEMBLY (1 required per assembly)
		851-3870A 6 - Cylinder Block [ More info ] Unavailable
		851-5883A 2 - CYLINDER BL,NLA [ More info ] Unavailable
#6	16-35099	STUD, CARBURETOR MOUNTING (1 3/16") (2 required per assembly)
		16-35099 - STUD Note: Priced Individually [ More info ] Unavailable
		16-64280 - STUD [ More info ] Unavailable
		16-68164 - Stud, NLA [ More info ] Unavailable
		16-64936 - Stud, NLA [ More info ] $5.99 10+ In Stock.
#7	16-29988	STUD, CRANKCASE TO DRIVE SHAFT HOUSING (1 9/16") (2 required per assembly)
		16-29988 - Stud - Priced Individually [ More info ] $0.83 6 In Stock.
		16-33111 - Stud, NLA [ More info ] $3.99 10+ In Stock.
#8	17-57211	DOWEL PIN, RETAINER TO CYLINDER BLOCK (1 required per assembly)
		17-57211 - Dowel Pin, NLA [ More info ] $1.25 9 In Stock.
#9	17-23784	DOWEL PIN, CRANKCASE TO CYLINDER BLOCK (2 required per assembly)
		17-23784 - Pin, Dowel [ More info ] $5.00 Available to Order: Usually ships within 10 days.
#10	17-20323	DOWEL PIN, CYLINDER BLOCK TO MAIN BEARING (1 required per assembly)
		17-20323 - Pin -Dowel - Priced Individually [ More info ] $3.80 $2.13 10+ In Stock.
#11	27-55158	GASKET, SEALING - CYLINDER BLOCK (1 required per assembly)
		27-55158 - Cylinder Block Gasket [ More info ] $2.90 10+ In Stock.
#12	57854	RESTRICTION, CYLINDER BLOCK (1 required per assembly)
		57854 - Bleed Restrictor - Priced Individually [ More info ] Unavailable
		66517 - Bleed Restrictor - Priced Individually [ More info ] $3.60 10+ In Stock.
#13	16-29990	STUD, CYLINDER BLOCK TO DRIVE SHAFT HOUSING (3 7/16") (2 required per assembly)
		16-29990 - Stud - Priced Individually [ More info ] $1.94 10+ In Stock.
		16-56297 - Stud [ More info ] $12.21 10+ In Stock.
		16-56297 2 - Stud [ More info ] Unavailable
		16-8M0034463 - Stud [ More info ] $17.17 Available to Order: Usually ships within 10 days.
#14	16-29989	STUD, CYLINDER BLOCK TO DRIVE SHAFT HOUSING (1 15/16") - ST (2 required per assembly)
		16-29989 - Stud, NLA [ More info ] $4.44 5 In Stock.
#15	16-37986	STUD, CYLINDER BLOCK TO DRIVE SHAFT HOUSING (2 5/16") - POR (2 required per assembly)
		16-37986 - Stud [ More info ] $1.70 1 In Stock.
		16-34378 - Stud, NLA [ More info ] Unavailable
#16	10-21489	SCREW, CRANKCASE TO CYLINDER BLOCK (1 3/4") (1 required per assembly)
		10-21489 - SCREW [ More info ] Unavailable
		10-69096 - Screw, NLA [ More info ] $1.50 1 In Stock.
#16	10-22040	SCREW, CRANKCASE TO CYLINDER BLOCK (1 1/2") (6 required per assembly)
		10-22040 - Screw - Priced Individually [ More info ] $0.33 10+ In Stock.
		10-69097 - Screw [ More info ] $0.50 6 In Stock.
		10-78841 - Bolt, NLA [ More info ] $1.82 10+ In Stock.
#16	10-22039	SCREW, CRANKCASE TO CYLINDER BLOCK (2 3/4") (2 required per assembly)
		10-22039 - Screw, NLA [ More info ] $2.09 10+ In Stock.
#16	10-29942	SCREW, CRANKCASE TO CYLINDER BLOCK (2 1/4") (1 required per assembly)
		10-29942 - SCREW [ More info ] Unavailable
		10-69090 - Screw, NLA [ More info ] $1.25 8 In Stock.
#17	11-46793	NUT, CRANKCASE FASTENING SCREW (10 required per assembly)
		11-46793 - Nut, (5/16-24) [ More info ] $0.68 10+ In Stock.
		11-29250 - Nut (5/16-24) [ More info ] $2.80 $1.57 10+ In Stock.
#18	55169A 1	RETAINER ASSEMBLY, BALL BEARING (1 required per assembly) PART OF CRANKSHAFT ASSEMBLY
		55169A 1 - Retainer, NLA [ More info ] Unavailable
#19	30-53853	BALL BEARING, RETAINER (CRANKSHAFT) - LOWER (1 required per assembly) PART OF CRANKSHAFT ASSEMBLY
		30-53853 - Ball Bearing [ More info ] Unavailable
		30-63742 - Ball Bearing [ More info ] Unavailable
		30-63742T - Ball Bearing [ More info ] $32.25 Available to Order: Usually ships within 10 days.
		18-1154 - Bearing, 30-63742, 377139 [ More info ] $28.99 $26.47 In Stock
#20	10-57846	SCREW, RETAINER TO CYLINDER BLOCK AND CRANKCASE (3/4") (3 required per assembly)
		10-57846 - Screw, NLA [ More info ] $1.25 10+ In Stock.
#21	12-58166	WASHER, RETAINER SCREW (3 required per assembly)
		12-58166 - Washer, Retainer Screw, NLA [ More info ] $1.50 10+ In Stock.
#22	26-57847	STAT-O-SEAL, RETAINER SCREW (3 required per assembly)
		26-57847 - Seal, NLA [ More info ] $1.88 10+ In Stock.
#24	27-55306	GASKET, CYLINDER BLOCK TO BAFFLE PLATE (1 required per assembly)
		27-55306 - Cylinder Block To Baffle Plate Gasket [ More info ] $1.39 5 In Stock.
		27-78028 - Cylinder Block To Baffle Plate Gasket [ More info ] $3.49 10+ In Stock.
		27-85489 - Cylinder Block To Baffle Plate Gasket [ More info ] Unavailable
		27-85489 1 - Gasket [ More info ] Unavailable
		854892 - GASKET NLA [ More info ] Unavailable
#25	55190	PLATE, DIVIDER - EXHAUST MANIFOLD (1 required per assembly)
		55190 - Divider Plate, NLA [ More info ] $53.99 10+ In Stock.
#26	27-55308	GASKET, BAFFLE PLATE TO EXHAUST COVER (1 required per assembly)
		27-55308 - Baffle Plate To Exhaust Cover Gasket [ More info ] $1.39 10+ In Stock.
		27-78027 - Baffle Plate To Exhaust Cover Gasket [ More info ] $3.49 10 In Stock.
		27-85488 - Baffle Plate To Exhaust Cover Gasket [ More info ] $4.99 1 In Stock.
		27-85488 1 - Gasket [ More info ] Unavailable
		27-85488 2 - Gasket [ More info ] $10.90 Available to Order: Usually ships within 10 days.
#27	55157	COVER, EXHAUST MANIFOLD (1 required per assembly)
		55157 - Cover [ More info ] Unavailable
		55157T - Cover [ More info ] Unavailable
		55157 2 - Cover, NLA [ More info ] $37.50 10+ In Stock.
#28	10-37558	SCREW, MANIFOLD COVER TO CYLINDER BLOCK (1 1/4") (1 required per assembly)
		10-37558 - Screw - Priced Individually [ More info ] $0.40 4 In Stock.
		10-74824 - Screw - Priced Individually [ More info ] $1.70 Available to Order: Usually ships within 10 days.
#28	10-31984	SCREW, MANIFOLD COVER TO CYLINDER BLOCK (1 3/8") (7 required per assembly)
		10-31984 - Screw - Priced Individually [ More info ] $1.70 Available to Order: Usually ships within 10 days.
#29	10-24228	SCREW, ADJUSTING - EXHAUST COVER (1 7/8") (2 required per assembly)
		10-24228 - Screw, NLA [ More info ] $2.63 6 In Stock.
#30	11-20890	NUT, ADJUSTING SCREW (2 required per assembly)
		11-20890 - Nut (1/4 x20) [ More info ] $1.60 7 In Stock.
#31	26852	CAP, NYLON - ADJUSTING SCREW (2 required per assembly)
		26852 - Nylon Cap [ More info ] $3.80 Available to Order: Usually ships within 10 days.
#32	58124A 8	SWITCH ASSEMBLY, MERCURY (1 required per assembly)
		58124A 8 - Switch Assembly, NLA [ More info ] $27.78 10+ In Stock.
#33	10-48409	SCREW, MERCURY SWITHCH TO EXHAUST COVER (5/8") (1 required per assembly)
		10-48409 - Screw - Priced Individually [ More info ] $2.40 8 In Stock.
#34	1024-3869	COVER, CYLINDER BLOCK (1 required per assembly)
		1024-3869 - Cylinder Block Cover [ More info ] Unavailable
		1024-6137 - Cylinder Block Cover [ More info ] Unavailable
		1024-6652 - Cylinder Block Cover [ More info ] Unavailable
		1024-9110 - Cylinder Block Cover [ More info ] Unavailable
		1024-9110T - Cover [ More info ] Unavailable
		1024-9110 1 - Cover, NLA [ More info ] $68.00 1 In Stock.
#35	27-55307	GASKET, CYLINDER BLOCK COVER (1 required per assembly)
		27-55307 - Cylinder Block Cover Gasket [ More info ] Unavailable
		27-74708 - Cylinder Block Cover Gasket [ More info ] Unavailable
		27-78029 - Cylinder Block Cover Gasket [ More info ] Unavailable
		27-85490 - Cylinder Block Cover Gasket [ More info ] Unavailable
#36	10-56500	SCREW, CYLINDER BLOCK COVER MOUNTING (1 1/4") (10 required per assembly)
		10-56500 - Screw, NLA [ More info ] $2.80 10+ In Stock.
#37	11-46887	NUT, COVER MOUNTING SCREW (10 required per assembly)
		11-46887 - Nut, (1/4-28) [ More info ] Unavailable
		11-20184 - Nut, (1/4-28x7/32) [ More info ] $1.70 10+ In Stock.
#38	46933A 3	GROUND STRAP, POWERHEAD TO BOTTOM COWL (2 required per assembly)
		46933A 3 - Strap Assembly, NLA [ More info ] $3.67 10+ In Stock.
#39	22-32802	PLUG, PIPE - CYLINDER BLOCK COVER (1 required per assembly) ICH CONSISTS OF THE
		22-32802 - Plug , Priced Individually [ More info ] Unavailable
		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.
#40	21-55621A 2	CONNECTOR ASS'Y, BLEED HOSE (LOWER) -SEE NOTE 1 (1 required per assembly)
		21-55621A 2 - CONNECTOR ASSY,NLA [ More info ] Unavailable
#41	21-56011A 1	CHECK VALVE ASSEMBLY -SEE NOTE 1 (1 required per assembly)
		21-56011A 1 - Check Valve [ More info ] Unavailable
		21-56011A 2 - Check Valve Assembly [ More info ] Unavailable
		21-42657A 1 - Check Valve Assembly [ More info ] $7.78 7 In Stock.
		21-42657A 3 - Check Valve Assembly [ More info ] $7.00 Available to Order: Usually ships within 10 days.
#42	32-52742A 1	HOSE, CYLINDER BLEED (16 1/2") -SEE NOTE 1 (1 required per assembly)
		32-52742A 1 - Hose Assembly [ More info ] Unavailable
		32-26980 88 - Fuel Line, Enricher Valve [ More info ] Unavailable
		32-99126 88 - Tubing - 36 Inch [ More info ] $29.61 10 In Stock.
#43	54-20387	CLAMP, BLEED HOSE -SEE NOTE 1 (2 required per assembly)
		54-20387 - Fuel Line Clamp [ More info ] $7.77 10+ In Stock.
#44	22-57785	CONNECTOR, BLEED HOSE (UPPER) -SEE NOTE 1 (1 required per assembly)
		22-57785 - FITTING,NLA [ More info ] Unavailable
#45	57752	COVER, TRANSFER PORT (1 required per assembly)
		57752 - Transfer Port Cover [ More info ] $6.00 4 In Stock.
#46	27-55279	GASKET, TRANSFER PORT COVER (1 required per assembly)
		27-55279 - Transfer Port Cover Gasket [ More info ] Unavailable
		27-55279 1 - Gasket - Priced Individually [ More info ] $7.30 $4.10 10+ In Stock.
#47	10-53556	SCREW, TRANSFER PORT COVER MOUNTING (6 required per assembly)
		10-53556 - Screw [ More info ] Unavailable
		10-69100 - Screw [ More info ] Unavailable
		10-76630 - Screw - Priced Individually [ More info ] $1.24 10+ In Stock.
		108M0214943 - SCREW, Priced Individually [ More info ] $1.70 Available to Order: Usually ships within 10 days.