Parts for Mercury Marine Exhaust / Cooling Systems & Extension Kits Closed Cooling System (78094A 2)

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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 ]

#	10-66223	SCREW, End Cover (2 required per assembly)
		10-66223 - Bolt, NLA [ More info ] $4.00 10+ In Stock.
#	66221	COVER, End (2 required per assembly)
		66221 - End Cover [ More info ] $51.58 $43.84 2 In Stock.
#	61937A 6	INSTALLATION KIT (1 required per assembly)
		61937A 6 - Installation Kit, NLA [ More info ] Unavailable
#	22-32802	PLUG, Pipe (.125-27) (1 required per assembly)
		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.
#	61937A 7	INSTALLATION KIT (1 required per assembly)
		61937A 7 - Install Kitfwc, NLA [ More info ] $65.00 1 In Stock.
#	78094A 2	CLOSED COOLING SYSTEM (1 required per assembly)
		78094A 2 - CLOSED COOLING [ More info ] Unavailable
#	27-65128	GASKET, End Cover (2 required per assembly)
		27-65128 - End Cover Gasket [ More info ] $11.70 2 In Stock.
#1	55131A 5	HOUSING ASSEMBLY, Thermostat (Includes Cover) (1 required per assembly)
		55131A 5 - Housing Assembly [ More info ] $379.57 1 In Stock.
#2	22-47540	PLUG, Pipe - Allen Head (.375-18) (2 required per assembly)
		22-47540 - Plug [ More info ] Unavailable
#3	23-47508	SLEEVE (1 required per assembly)
		23-47508 - Thermostat Sleeve [ More info ] Unavailable
		23-47508T - Thermostat Sleeve [ More info ] $19.34 5 In Stock.
#4	27-48818 1	GASKET, Upper (1 required per assembly)
		27-48818 1 - Gasket - Priced Individually [ More info ] $2.90 8 In Stock.
#5	27-47510	GASKET, Middle (1 required per assembly)
		27-47510 - Thermostat Gasket [ More info ] $3.30 10+ In Stock.
		18-2553-9 - Gasket 27-47510 2-Pack [ More info ] $6.20 $5.27 Available to Order: Usually ships within 10 days.
#6	27-53045 1	GASKET, Lower (1 required per assembly)
		27-53045 1 - Gasket - Priced Individually [ More info ] $5.50 10+ In Stock.
		18-2917-9 - Gasket 27-530451 2-Pack [ More info ] $7.99 10+ In Stock.
		27-53045Q01 - Gasket [ More info ] $5.50 1 In Stock.
#7	10-48115	SCREW, (.375-16 x 3.50) (2 required per assembly)
		10-48115 - Screw, NLA [ More info ] $1.67 10+ In Stock.
#9	78094A 3	RESERVOIR ASSEMBLY (1 required per assembly)
		78094A 3 - Reservoir Assembly [ More info ] Unavailable
#10	36-55143	CAP, Pressure (1 required per assembly)
		36-55143 - Radiator Cap [ More info ] Unavailable
		36-55143Q - Radiator Cap - Priced Individually [ More info ] Unavailable
#11	54-815504372	CLAMP, Worm Gear (2 required per assembly)
		54-815504372 - Clamp [ More info ] $15.90 Available to Order: Usually ships within 10 days.
#13	79437A 2	BRACKET (Port) (1 required per assembly)
		79437A 2 - Bracket Assembly, NLA [ More info ] $28.00 2 In Stock.
#13	78092A 1	BRACKET (Port) (1 required per assembly)
		78092A 1 - Bracket, NLA [ More info ] $20.00 4 In Stock.
#13	79438A 3	BRACKET (Starboard) (1 required per assembly)
		79438A 3 - Bracket Assembly, NLA [ More info ] Unavailable
#13	78093A 3	BRACKET (Starboard) (1 required per assembly)
		78093A 3 - Bracket Assembly, NLA [ More info ] $22.22 3 In Stock.
#14	77223 3	PAD (2 required per assembly)
		77223 3 - Pad [ More info ] $5.80 Available to Order: Usually ships within 10 days.
#15	10-37612	SCREW, (.375-16 x 1.250) (3 required per assembly)
		10-37612 - Screw - Priced Individually [ More info ] $2.40 10+ In Stock.
#16	13-35048	LOCKWASHER, (.375) (2 required per assembly)
		13-35048 - LockWasher - Priced Individually [ More info ] $1.20 10+ In Stock.
#17	71587A10	RECOVERY KIT, Coolant (Component parts can be purchased locally.) (1 required per assembly)
		71587A10 - Coolant Recovery Kit [ More info ] $93.50 In Stock
#18	71587A11	BOTTLE, Plastic (1 required per assembly)
		71587A11 - Coolant Recovery Bottle [ More info ] $73.56 1 In Stock.
#19	72058	CAP (1 required per assembly)
		72058 - Bottle Cap [ More info ] $10.90 Available to Order: Usually ships within 10 days.
#20	54-97862	CLAMP (1 required per assembly)
		54-97862 - Clamp [ More info ] $1.70 $1.44 10+ In Stock.
#21	54-815504220	CLAMP, Worm Gear (8 required per assembly)
		54-815504220 - Clamp [ More info ] $7.30 Available to Order: Usually ships within 10 days.
#22	32-19403	HOSE (Starboard) (1 required per assembly)
		32-19403 - Hose - Reservoir To Manifold - Starboard [ More info ] $54.83 Available to Order: Usually ships within 10 days.
#22	32-91954 1	HOSE (Starboard) (1 required per assembly)
		32-91954 1 - Hose, NLA [ More info ] Unavailable
#23	22-36305	ELBOW, (90 Degrees) (2 required per assembly)
		22-36305 - Elbow [ More info ] Unavailable
		22-36305T - Elbow [ More info ] $37.83 6 In Stock.
		18-8216 - Brass Fitting, 22-36305 [ More info ] $33.99 $30.79 1 In Stock.
#23	22-92499	FITTING, (45 Degrees) (1 required per assembly)
		22-92499 - Fitting [ More info ] Unavailable
		22-92499T - 45 Degree Fitting [ More info ] Unavailable
		22-865159 - Fitting [ More info ] $24.92 2 In Stock.
#24	32-33220 70	HOSE, (48.00 Inches Bulk) (Port) (1 required per assembly)
		32-33220 70 - Thermostat Housing Exhaust Manifold & Elbow-48IN [ More info ] Unavailable
		32-8M0062614 - Water Hose [ More info ] Unavailable
#24	32-19404	HOSE (Port) (1 required per assembly)
		32-19404 - Hose PNLA [ More info ] Unavailable
#24	32-97558	HOSE (Port) (1 required per assembly)
		32-97558 - Hose, NLA [ More info ] Unavailable
#25	32-53461 70	HOSE, (48.00 Inches Bulk) (1 required per assembly)
		32-53461 70 - Hose -48 Inch [ More info ] $48.34 1 In Stock.
		32-865672070 - Hose -48 Inch [ More info ] Unavailable
		328M0062665 - Hose [ More info ] $91.17 Available to Order: Usually ships within 10 days.
#25	32-97557	HOSE (1 required per assembly)
		32-97557 - Hose - Tee To Reservoir [ More info ] Unavailable
		32-807405 - Hose - Oil Cooler To Oil Cooler [ More info ] $30.83 Available to Order: Usually ships within 10 days.
#25	32-816261 3	HOSE (1 required per assembly)
		32-816261 3 - Hose [ More info ] Unavailable
#27	22-55133T	TEE (1 required per assembly)
		22-55133T - Fitting [ More info ] Unavailable
		22-55133 - Fitting Tee, NLA [ More info ] Unavailable
#28	32-48132	HOSE (Port) (1 required per assembly)
		32-48132 - Hose [ More info ] $28.25 Available to Order: Usually ships within 10 days.
		18-71218 - Molded Hose [ More info ] $23.99 $21.73 1 In Stock.
#28	32-817438 1	HOSE (Port) (1 required per assembly)
		32-817438 1 - Molded Hose, NLA [ More info ] $21.10 9 In Stock.
#28	32-817438 2	HOSE (Port) (1 required per assembly)
		32-817438 2 - Hose, NLA [ More info ] $15.54 10+ In Stock.
#30	32-817439 3	HOSE (Starboard) (1 required per assembly)
		32-817439 3 - Molded Hose, NLA [ More info ] $28.88 5 In Stock.
#30	32-817439 4	HOSE (Starboard) (1 required per assembly)
		32-817439 4 - Hose, NLA [ More info ] Unavailable
#31	22-45084	FITTING, Straight (1 required per assembly)
		22-45084 - Connector [ More info ] $14.99 7 In Stock.
		22-866725 - Brass Fitting, 3/4 NPT [ More info ] $17.60 In Stock
		18-4461 - Brass Connector [ More info ] $13.99 $12.67 1 In Stock.
#32	32-97525	HOSE (1 required per assembly)
		32-97525 - Hose - Reservoir To Water Pump [ More info ] Unavailable
#33	54-815504228	CLAMP, Worm Gear (2 required per assembly)
		54-815504228 - Clamp [ More info ] $19.90 Available to Order: Usually ships within 10 days.
#34	32-92833	HOSE (1 required per assembly)
		32-92833 - Hose - Water Pump To Oil Cooler [ More info ] $115.17 Available to Order: Usually ships within 10 days.
#35	32-92837	HOSE (1 required per assembly)
		32-92837 - Straight Hose [ More info ] $139.67 In Stock
#36	47441A 1	COVER (Design I) (1 required per assembly)
		47441A 1 - Thermostat Cover [ More info ] $95.58 In Stock
		18-1977-1 - Thermostat Housing [ More info ] $81.19 $78.33 2 In Stock.
		MC-29-47441 - Mercruiser Thermostat Housing [ More info ] $48.00 $37.86 3 In Stock.
#37	97428T 2	COVER, Thermostat (Design II) (1 required per assembly)
		97428T 2 - Thermostat Cover, NLA [ More info ] $15.56 6 In Stock.
		MC-29-97428 - Thermostat Housing [ More info ] $53.00 $40.64 1 In Stock.