Parts for MerCruiser 8.1L Inboard (Base) Cooling System, Fresh Water Components

Revise Search: All Models > 8.1L Inboard (Base) > 0W390000 - 0W689999 > Cooling System, Fresh Water Components

NEED PARTS OR KITS?
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 ]

#1	863771T	CROSSOVER, Coolant (1 required per assembly)
		863771T - Crossover-Coolant [ More info ] $408.50 Available to Order: Usually ships within 10 days.
#2	27-881620	GASKET, Cylinder Head to Crossover (2 required per assembly)
		27-881620 - Cylinder Head To Crossover Gasket [ More info ] Unavailable
		27-881620001 - Cylinder Head To Crossover Gasket [ More info ] $34.58 In Stock
#3	10-881593	SCREW, (M10 x 30) (4 required per assembly)
		10-881593 - Bolt [ More info ] $14.40 Available to Order: Usually ships within 10 days.
#4	26-861947	SEAL (1 required per assembly)
		26-861947 - Seal [ More info ] $44.08 In Stock
#5	10-863609	SCREW, (M6 x 14) (2 required per assembly)
		10-863609 - Screw [ More info ] $2.00 Available to Order: Usually ships within 10 days.
#6	22-12524	PLUG, (.375-18 x .475) Brass (2 required per assembly)
		22-12524 - Plug [ More info ] $5.10 Available to Order: Usually ships within 10 days.
#7	805218T	SENSOR, Coolant (1 required per assembly)
		805218T - Temperature Sensor [ More info ] $70.49 $67.49 In Stock
		18-7600 - Sensor 805218T [ More info ] $57.49 $54.70 In Stock
		E13-0009 - Coolant Temp Sensor [ More info ] $33.55 $32.41 In Stock
#8	806490T	SENDER, Temperature (1 required per assembly)
		806490T - Water Temperature Sender [ More info ] $40.99 $39.49 1 In Stock.
		18-5897 - Sender, 97257A1 [ More info ] $35.99 $33.61 6 In Stock.
#9	863358T	THERMOSTAT, 71Â°C (160Â°F) (1 required per assembly)
		863358T - Thermostat, 160 Degrees, 8M0076464 [ More info ] Unavailable
		8M0076464 - Thermostat, 160 Degrees [ More info ] $40.99 $39.49 In Stock
		18-43017 - Thermostat, 160 Degrees, S985009, 863358, 863358T [ More info ] $27.99 $27.78 2 In Stock.
#10	25-865078	SEAL, Thermostat (1 required per assembly)
		25-865078 - Thermostat Seal [ More info ] $15.10 Available to Order: Usually ships within 10 days.
#11	861949T	RETAINER, Thermostat (1 required per assembly)
		861949T - Retainer -t Stat [ More info ] $44.83 Available to Order: Usually ships within 10 days.
#12	12-12038	WASHER (2 required per assembly)
		12-12038 - Washer [ More info ] $2.30 3 In Stock.
		12-8M0207778 - WASHER Note: Priced Individually [ More info ] $10.10 Available to Order: Usually ships within 10 days.
#13	10-40003 54	SCREW, (M8 x 30) (2 required per assembly)
		10-40003 54 - Screw - Priced Individually [ More info ] $4.80 10+ In Stock.
#14	26-865066	SEAL, Heat Exchanger to Crossover (2 required per assembly)
		26-865066 - Heat Exchanger Seal [ More info ] $19.10 In Stock
#15	863903A01	HEAT EXCHANGER (1 required per assembly)
		863903A01 - Heat Exchanger [ More info ] $1,975.93 In Stock
#NS	37-863355	DECAL, Caution, Heat Exchanger (1 required per assembly)
		37-863355 - Decal Caution [ More info ] $2.70 Available to Order: Usually ships within 10 days.
#16	863392	PAD, Heat Exchanger (2 required per assembly)
		863392 - Pad [ More info ] $7.80 2 In Stock.
#17	22-62910 1	FITTING, Elbow - 90 Degree (.125-27) (1 required per assembly)
		22-62910 1 - Elbow [ More info ] $13.40 Available to Order: Usually ships within 10 days.
#18	54-815504280	CLAMP, Worm Gear (2 required per assembly)
		54-815504280 - Clamp [ More info ] $8.10 Available to Order: Usually ships within 10 days.
#19	32-863303	HOSE, Coolant Bleed (1 required per assembly)
		32-863303 - Molded Hose [ More info ] $52.92 Available to Order: Usually ships within 10 days.
#20	54-815504206	CLAMP, Worm Gear (2 required per assembly)
		54-815504206 - Clamp [ More info ] $6.80 Available to Order: Usually ships within 10 days.
#21	861944A 1	RESERVOIR, Coolant (1 required per assembly)
		861944A 1 - Reservoir Assembly [ More info ] $240.58 Available to Order: Usually ships within 10 days.
#22	862863	CAP, Coolant Reservoir (1 required per assembly)
		862863 - Reservoir Cap [ More info ] $20.17 Available to Order: Usually ships within 10 days.
#23	32-863304	HOSE, Reservoir to Crossover (1 required per assembly)
		32-863304 - Hose - Reservoir To Crossover [ More info ] $15.40 Available to Order: Usually ships within 10 days.
#24	54-815504212	CLAMP, Worm Gear (2 required per assembly)
		54-815504212 - Clamp [ More info ] $5.90 Available to Order: Usually ships within 10 days.
#25	22-855214 1	FITTING, Straight Hose (1 required per assembly)
		22-855214 1 - Fitting [ More info ] Unavailable
#26	10-863388	SCREW, (M10 x 16) (3 required per assembly)
		10-863388 - Screw (M10X16) [ More info ] $14.50 Available to Order: Usually ships within 10 days.
#27	862986	BRACKET, Coolant Reservoir (1 required per assembly)
		862986 - Bracket [ More info ] $51.92 Available to Order: Usually ships within 10 days.
#28	10-818934 12	SCREW, (M8 x 12) (3 required per assembly)
		10-818934 12 - Screw [ More info ] $3.60 Available to Order: Usually ships within 10 days.
#29	32-865221	HOSE, Crossover to Pump (1 required per assembly)
		32-865221 - Hose - Crossover To Pump [ More info ] $43.50 Available to Order: Usually ships within 10 days.
#30	54-815504232	CLAMP, Worm Gear (2.50 Diameter) (2 required per assembly)
		54-815504232 - Clamp [ More info ] $8.90 10+ In Stock.
#31	54-865373	CLAMP, Hose (1 required per assembly)
		54-865373 - Hose Clamp [ More info ] Unavailable
		54-815504221 - Clamp [ More info ] $6.90 Available to Order: Usually ships within 10 days.
#32	891717	COVER, Heat Exchanger End (2 required per assembly) (Use With 3.75 Inch Diameter Heat Exchanger)
		891717 - Cover [ More info ] $101.92 Available to Order: Usually ships within 10 days.
#33	27-891716	GASKET, Heat Exchanger Cover (2 required per assembly) (Use With 3.75 Inch Diameter Heat Exchanger)
		27-891716 - Heat Exchanger Gasket, priced individually [ More info ] $19.20 7 In Stock.
#34	25-814878	O-RING, Special (2 required per assembly)
		25-814878 - O-Ring [ More info ] Unavailable
		25-8M0039163 - O-ring, (3/8 X 1/8) [ More info ] $8.80 2 In Stock.
#35	10-98261	SCREW, (.375-16 x .750) (2 required per assembly)
		10-98261 - Screw [ More info ] $1.20 4 In Stock.
#N.S.	19-807992 3	COVER, Hose Clamp End (AR required per assembly)
		19-807992 3 - Cover-.375 - Priced Individually [ More info ] $0.58 4 In Stock.
		198M0074364 [ More info ] Unavailable
		198M0074364 - Cover-Clamp - Priced Individually [ More info ] $3.30 $2.80 10+ In Stock.