Closed Cooling System for Mercruiser (5.0l / 5.7l Alpha & Bravo Gen+) Engine

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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 ]

Engine Diagram

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 ]

# — 77457 2 — HOSE, (48.00 Inches Bulk) (1 required per assembly)
		32-77457 2 - Hose -48 Inch [ More info ] $70.49 Available to Order: Shipping delay up to 10 days.
# — 861246A98 — GASKET SET (1 required per assembly)
		27-861246A98 - Engine Overhaul Gasket Set [ More info ] Unavailable
		27-861246A05 - Engine Overhaul Gasket Set [ More info ] $826.99 Available to Order: Shipping delay up to 10 days.
#1 — 860234A 1 — HEAT EXCHANGER (1 required per assembly)
		860234A 1 - Heat Exchanger [ More info ] Unavailable
#NS — 814875 — COVER, Heat Exchanger End (2 required per assembly)
		814875 - End Cover [ More info ] Unavailable
		8M0036623 - Cap -end [ More info ] $104.99 Available to Order: Shipping delay up to 10 days.
#NS — 803644 — GASKET (2 required per assembly)
		27-803644 - End Cover Gasket [ More info ] Unavailable
		27-8M0036987 - Heat Exchanger End Gasket [ More info ] $21.99 In Stock
#NS — 814877 — BOLT (2 required per assembly)
		10-814877 - Bolt [ More info ] Unavailable
#NS — 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 ] $8.79 2 In Stock.
#NS — 814879 1 — CAP (1 required per assembly)
		36-814879 1 - Pressure Cap [ More info ] $60.49 Available to Order: Shipping delay up to 10 days.
#2 — 860326A 1 — BRACKET ASSEMBLY, Heat Exchanger (1 required per assembly)
		860326A 1 - Bracket Assembly [ More info ] $206.49 Available to Order: Shipping delay up to 10 days.
#3 — 18431 — PAD (4.25 x 4.375) (2 required per assembly)
		18431 - Pad [ More info ] $34.99 Available to Order: Shipping delay up to 10 days.
#4 — 815504388 — CLAMP, Worm Gear (2 required per assembly)
		54-815504388 - Clamp [ More info ] $26.45 2 In Stock.
#5 — 71587A10 — RECOVERY KIT, Coolant (1 required per assembly) — (See Note)
		71587A10 - Coolant Recovery Kit [ More info ] $97.49 $96.06 Available to Order: Shipping delay up to 10 days.
#6 — 71587A11 — BOTTLE, Plastic (1 required per assembly)
		71587A11 - Coolant Recovery Bottle [ More info ] $74.99 Available to Order: Shipping delay up to 10 days.
#7 — 72058 — CAP (1 required per assembly)
		72058 - Bottle Cap [ More info ] $11.29 Available to Order: Shipping delay up to 10 days.
#8 — 861188A 1 — HOUSING ASSEMBLY, Thermostat (1 required per assembly)
		861188A 1 - Thermostat Housing Assembly [ More info ] $266.99 Available to Order: Shipping delay up to 10 days.
#9 — 807134 1 — SEAL (1 required per assembly)
		25-807134 1 - Thermostat Seal [ More info ] $9.89 4 In Stock.
#10 — 863874 — SLEEVE, Water (1 required per assembly)
		23-863874 - Sleeve [ More info ] $33.11 1 In Stock.
#11 — 32803 — PLUG, Pipe (.375-18) Brass (1 required per assembly)
		22-32803 - Plug [ More info ] $4.99 1 In Stock.
		18-4264 - Pipe Plug, 3/8-18 NPT [ More info ] $5.49 $4.69 10+ In Stock.
		228M0180565 - PLUG [ More info ] $7.99 Available to Order: Shipping delay up to 10 days.
#12 — 99155 1 — THERMOSTAT (1 required per assembly)
		99155 1 - Thermostat, 160 Degrees [ More info ] $41.49 In Stock
		99155T 1 - Thermostat Kit, 160 Degrees [ More info ] $42.49 Available to Order: Shipping delay up to 10 days.
#13 — 807075A 1 — COVER (1 required per assembly)
		807075A 1 - Thermostat Cover Kit [ More info ] $230.49 Available to Order: Shipping delay up to 10 days.
#14 — 29198 — SCREW AND LOCKWASHER, (.312-18 x .875) (2 required per assembly)
		10-29198 - Screw w/ Lw - Priced Individually [ More info ] Unavailable
#15 — 58640 — SCREW, (.375-16 x 1.25) (2 required per assembly)
		10-58640 - Screw - Priced Individually [ More info ] Unavailable
		10-8M0113174 - Screw, .375-16, Priced Individually [ More info ] $7.29 1 In Stock.
#16 — 818390 — DRAIN COCK (1 required per assembly)
		22-818390 - Plug Assembly [ More info ] $20.39 Available to Order: Shipping delay up to 10 days.
#17 — 53045 1 — GASKET (2 required per assembly)
		27-53045 1 - Gasket - Priced Individually [ More info ] $5.69 5 In Stock.
		18-2917-9 - Gasket 27-530451 2-Pack [ More info ] $8.83 Available to Order: Shipping delay up to 10 days.
		27-53045Q01 - Gasket [ More info ] $5.89 5 In Stock.
#18 — 42850 69 — HOSE, (44.00 Inches Bulk) (1 required per assembly) — (Cut to 6.00 Inch Length)
		32-42850 69 - Hose -44 Inch [ More info ] Unavailable
		32-8M0062634 - Transom to Thermostat Housing Hose -44I [ More info ] $40.99 In Stock
#19 — 861058 — HOSE, Heat Exchanger To Exhaust Manifold (1 required per assembly) — (Alpha - Starboard) SN# 0L618999 & Below
		32-861058 - Water Hose [ More info ] $55.99 Available to Order: Shipping delay up to 10 days.
#19 — 861057 — HOSE, Heat Exchanger To Exhaust Manifold (1 required per assembly) — (Bravo - Starboard) SN# 0L618999 & Below
		32-861057 - Water Hose [ More info ] $51.99 $49.92 6 In Stock.
#19 — 860421 — HOSE, Heat Exchanger To Exhaust Manifold (1 required per assembly) — (Alpha/Bravo Starboard) SN# 0L619000 & Up
		32-860421 - Water Hose [ More info ] $60.99 Available to Order: Shipping delay up to 10 days.
#20 — 862125 — HOSE, Heat Exchanger To Exhaust Manifold (1 required per assembly) — (Port) SN# 0L619000 & Up
		32-862125 - Molded Hose [ More info ] $61.99 Available to Order: Shipping delay up to 10 days.
#21 — 815504220 — CLAMP, Worm Gear (4 required per assembly)
		54-815504220 - Clamp [ More info ] $7.59 Available to Order: Shipping delay up to 10 days.
#22 — 860485 — HOSE, Thermostat By-Pass (1 required per assembly) — SN# 0L618999 & Below
		32-860485 - Water Hose [ More info ] $57.99 Available to Order: Shipping delay up to 10 days.
#22 — 860331 — HOSE, Thermostat By-Pass (1 required per assembly) — SN# 0L619000 & Up
		32-860331 - Water Hose [ More info ] $35.99 Available to Order: Shipping delay up to 10 days.
#23 — 860419 — HOSE, Thermostat Housing To Heat Exchanger (1 required per assembly)
		32-860419 - Water Hose [ More info ] $47.99 Available to Order: Shipping delay up to 10 days.
#24 — 860332 — HOSE (1 required per assembly)
		32-860332 - Water Hose [ More info ] $55.99 $55.15 Available to Order: Shipping delay up to 10 days.
#25 — 815504222 — CLAMP, Worm Gear (1.98 DIameter) (6 required per assembly)
		54-815504222 - Clamp - See Note On Detail Page [ More info ] Unavailable
		54-8M0188622 - CLAMP [ More info ] Unavailable
#26 — 861059 — HOSE (1 required per assembly)
		32-861059 - Water Hose [ More info ] $76.49 Available to Order: Shipping delay up to 10 days.
#27 — 815504232 — CLAMP, Worm Gear (2.50 Diameter) (2 required per assembly)
		54-815504232 - Clamp [ More info ] $8.89 10+ In Stock.
#28 — 860482 — HOSE, Water Pump To Intake Manifold (1 required per assembly)
		32-860482 - Molded Hose [ More info ] Unavailable
		32-99520 - Molded Hose [ More info ] $27.39 In Stock
#29 — 815504212 — CLAMP, Worm Gear (4 required per assembly)
		54-815504212 - Clamp [ More info ] Unavailable
#30 — 860346 — FITTING, Elbow (90 Degree) (.750) (1 required per assembly)
		22-860346 - Elbow [ More info ] $44.99 Available to Order: Shipping delay up to 10 days.
#31 — 808042 — FITTING, Elbow (90 Degrees) (.50 NPT x .75 Bars) (1 required per assembly)
		22-808042 - Connector [ More info ] $29.99 Available to Order: Shipping delay up to 10 days.
#32 — 860089 1 — HOSE, Molded (1 required per assembly) — SN# 0L618999 & Below
		32-860089 1 - Water Hose [ More info ] $86.99 Available to Order: Shipping delay up to 10 days.
#32 — 808045 — HOSE, Fuel Cooler to Transmission Oil Cooler (1 required per assembly) — SN# 0L619000 & Up
		32-808045 - Molded Hose [ More info ] $61.99 Available to Order: Shipping delay up to 10 days.
#33 — 808044 1 — HOSE, Molded (1 required per assembly)
		32-808044 1 - Molded Hose [ More info ] $92.49 In Stock
#34 — 32877 — PLUG, Transom Plate Water Inlet Block Off (1 required per assembly)
		32877 - Cover [ More info ] $7.99 $4.48 10+ In Stock.
#35 — 863343 79 — HOSE, (96.00 Inches Bulk) (1 required per assembly) — (Cut to 36.00 Inch Length)
		32-863343 79 - Hose-96 INCH [ More info ] Unavailable
		32-865672079 - Hose-96 Inch [ More info ] Unavailable
		32-8M0062666 - Water Hose Bulk -96" [ More info ] $220.99 $218.15 Available to Order: Shipping delay up to 10 days.
#36 — 815504228 — CLAMP, Worm Gear (2 required per assembly)
		54-815504228 - Clamp [ More info ] $17.29 Available to Order: Shipping delay up to 10 days.
		54-8M0232395 - CLAMP HOSE [ More info ] Unavailable
#37 — 861554T — COOLER, Power Steering (1 required per assembly)
		861554T - Power Steering Cooler [ More info ] Unavailable
		861554T01 - Cooler, Power Steering [ More info ] Unavailable
		8M0125855 - Power Steering Cooler [ More info ] $212.99 In Stock
#38 — 860315A 1 — TUBE, Hose Extender (1 required per assembly) — (Compact Hydralic Steering) (Cut to 10.50 Inch Length)
		860315A 1 - Tube - Hose Extender [ More info ] $41.49 Available to Order: Shipping delay up to 10 days.
#40 — 806608A 1 — PLUG KIT, (.500-13) Royal Blue, Fitting (1 required per assembly)
		22-806608A 1 - Plug Kit, Priced Individually [ More info ] Unavailable
		22-806608A02 - Plug Assembly - Priced Individually [ More info ] $3.05 4 In Stock.
		18-4226 - Blue Drain Plug, 22-806608A1 [ More info ] $4.10 10+ In Stock.
		22-806608Q01 - Plug - Priced Individually [ More info ] $10.29 1 In Stock.
		22-8M0119211 - Drain Plug, Priced Individually, .5 inch x 13 [ More info ] $10.19 10+ In Stock.
#41 — 62706 — O-RING, (.426 x .070) (1 required per assembly)
		25-62706 - O-ring, (.426 X .070) [ More info ] $2.39 10+ In Stock.
#42 — 860418T — BRACKET (1 required per assembly)
		860418T - Bracket [ More info ] $16.89 Available to Order: Shipping delay up to 10 days.
#43 — 860417T — CLAMP (1 required per assembly)
		860417T - Clamp [ More info ] $19.09 Available to Order: Shipping delay up to 10 days.
#44 — 35462 — WASHER, (.2656 x .625 x .0625) Stainless Steel (1 required per assembly)
		12-35462 - Washer, (.2656 X .625 X .0625) Stainless Steel [ More info ] $1.80 10+ In Stock.
#45 — 826708 8 — NUT, (.250-20) (1 required per assembly)
		11-826708 8 - Nut [ More info ] $1.70 Available to Order: Shipping delay up to 10 days.
#46 — 806616 — CLAMP (1 required per assembly)
		54-806616 - Clamp [ More info ] $3.09 Available to Order: Shipping delay up to 10 days.
#NS — 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 ] $3.29 Available to Order: Shipping delay up to 10 days.