Exhaust Manifold & Water System for Mercruiser (3.0l / Lx Alpha One Engine) 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 ]

# — 810846A90 — GASKET SET, Overhaul (1 required per assembly)
		27-810846A90 - Engine Overhaul Gasket Set [ More info ] Unavailable
		27-810846A05 - Engine Overhaul Gasket Set [ More info ] $657.49 Available to Order: Shipping delay up to 10 days.
#1 — 806867A 3 — MANIFOLD ASSEMBLY, Exhaust (1 required per assembly)
		806867A 3 - Exhaust Manifold [ More info ] Unavailable
		806867A 9 - Exhaust Manifold [ More info ] Unavailable
		806867A12 - Exhaust Manifold [ More info ] Unavailable
		860235A03 - Exhaust Manifold, 3.0L and 3.0LX [ More info ] $577.49 In Stock
		18-1966-1 - Exhaust Manifold, 3.0L, 860235A03 [ More info ] $668.49 $583.83 In Stock
		18-1956-3 - Exhaust Manifold [ More info ] $658.39 $603.31 1 In Stock.
#2 — 32802 1 — PLUG, Pipe (.125-27) (1 required per assembly)
		22-32802 1 - Plug, Brass, Priced Individually [ More info ] Unavailable
		22-32802 2 - Brass Pipe Plug, Priced Individually [ More info ] $7.59 1 In Stock.
		18-4263 - Pipe Plug, 1/8-27 NPT, Brass [ More info ] $5.30 10+ In Stock.
#3 — 36382 — FITTING, (.250-18 x .62) Brass (1 required per assembly)
		22-36382 - Plug [ More info ] $5.49 4 In Stock.
		18-8111-9 - Pipe Plug, 1/4 Inch, (Pack of 3) [ More info ] $12.29 Available to Order: Shipping delay up to 10 days.
		18-4256 - Plug, 1/4 Inch Brass, Sold Individually [ More info ] $2.46 2 In Stock.
#4 — 807155 — FITTING, Hose (1 required per assembly)
		22-807155 - COUPLING [ More info ] Unavailable
		22-863804 - Fitting [ More info ] Unavailable
		22-866725 - Brass Fitting, 3/4 NPT [ More info ] $18.29 In Stock
		18-4461 - Brass Connector [ More info ] $13.99 $13.86 1 In Stock.
#4 — 42861 1 — FITTING, Pipe - Brass (.750-14) (1 required per assembly) — (Closed Cooling)
		22-42861 1 - Pipe Plug [ More info ] $6.99 10+ In Stock.
#5 — 53728 — SCREW, (.375-16 x 4.75) (2 required per assembly)
		10-53728 - Screw [ More info ] Unavailable
		10-8M0214937 - SM BLOCK EXH MANI BOLT Note: Priced Individually MZ [ More info ] $5.09 Available to Order: Shipping delay up to 10 days.
#6 — 806300 — STUD, (.375 x 5.380) (3 required per assembly)
		16-806300 - Ord 16-8M2010364, NLA [ More info ] Unavailable
#7 — 20553 — WASHER, (.406 x .734 x .063) (5 required per assembly)
		12-20553 - Washer - Priced Individually [ More info ] $1.50 6 In Stock.
#8 — 46335 — NUT, (.375-24) (3 required per assembly)
		11-46335 - Nut (.375-24) [ More info ] $2.97 Available to Order: Shipping delay up to 10 days.
#9 — 805629A 1 — END CAP/LIFTING EYE, Rear (1 required per assembly)
		805629A 1 - End Cap [ More info ] $39.99 Available to Order: Shipping delay up to 10 days.
		1-99179 - MerCruiser Rear End Cap lifting Eye [ More info ] $58.00 $44.47 2 In Stock.
#10 — 73813A 1 — END CAP ASSEMBLY, Front (1 required per assembly)
		73813A 1 - End Cap Assembly [ More info ] $19.99 Available to Order: Shipping delay up to 10 days.
		1-73813 - MerCruiser Rear End Cap Gasket [ More info ] $65.00 $42.60 3 In Stock.
		1-54870 - Read End Cap [ More info ] $65.00 $42.60 1 In Stock.
#11 — 807218 — GASKET (2 required per assembly)
		27-807218 - End Cap Gasket [ More info ] $4.69 Available to Order: Shipping delay up to 10 days.
		MC47-27-73814 - Gasket-MANIFOLD END CAP [ More info ] $7.00 $5.37 Available to Order: Shipping delay up to 10 days.
#12 — 824941 — SCREW, (.312-18 x .750) (8 required per assembly)
		10-824941 - Screw [ More info ] $14.99 1 In Stock.
#13 — 815528 — GASKET (1 required per assembly)
		27-815528 - Exhaust Manifold Gasket [ More info ] $20.99 In Stock
		18-0680 - Gasket, 3853256 [ More info ] $20.55 8 In Stock.
#14 — 12076A 2 — ELBOW ASSEMBLY, Exhaust (1 required per assembly)
		12076A 2 - Exhaust Elbow [ More info ] $367.99 In Stock
		18-1975-1 - Riser [ More info ] $366.83 In Stock
		18-1972 - Elbow 76325A2 [ More info ] $351.71 $265.40 In Stock
		MC-20-12076 - MerCruiser Exhaust Riser [ More info ] $282.99 $216.41 2 In Stock.
#14 — 12076A 5 — ELBOW ASSEMBLY, Exhaust (1 required per assembly) — Swiss Emissions (BSO1 And SAV1)
		12076A 5 - Exhaust Elbow [ More info ] Unavailable
#15 — 99777 2 — GASKET (1 required per assembly)
		27-99777 2 - Gasket - Priced Individually [ More info ] $4.59 10+ In Stock.
		27-99777Q02 - Gasket [ More info ] $6.69 4 In Stock.
#16 — 66863 1 — SCREW, (.375-16 x 2.500) (2 required per assembly)
		10-66863 1 - Screw [ More info ] $1.99 Available to Order: Shipping delay up to 10 days.
#17 — 42850 64 — HOSE, Transom Plate To Housing (1 required per assembly) — (With Out Power Steering)
		32-42850 64 - Hose-34.5 INCH [ More info ] Unavailable
		32-42850 69 - Hose -44 Inch [ More info ] Unavailable
		32-8M0062634 - Transom to Thermostat Housing Hose -44I [ More info ] $40.99 In Stock
#18 — 815504412 — CLAMP, Worm Gear (2 required per assembly) — (With Out Power Steering)
		54-815504412 - Clamp [ More info ] Unavailable
		54-8M0204717 - CLAMP [ More info ] Unavailable
#19 — 815413 — HOSE, Transom Plate To Power Steering Cooler (1 required per assembly) — (With Power Steering)
		32-815413 - Hose [ More info ] $36.49 Available to Order: Shipping delay up to 10 days.
#20 — 806433 — HOSE, Power Steering Cooler To Housing (1 required per assembly) — (With Power Steering)
		32-806433 - Hose [ More info ] $58.49 Available to Order: Shipping delay up to 10 days.
#21 — 815504220 — CLAMP, Worm Gear (2 required per assembly) — (With Power Steering)
		54-815504220 - Clamp [ More info ] $7.59 Available to Order: Shipping delay up to 10 days.
#23 — 99356A 1 — COOLER ASSEMBLY, Oil (1 required per assembly) — (With Power Steering)
		99356A 1 - Oil Cooler Assembly [ More info ] $403.26 1 In Stock.
#24 — 815504232 — CLAMP, Worm Gear (2.50 Diameter) (1 required per assembly) — (With Power Steering)
		54-815504232 - Clamp [ More info ] $8.89 10+ In Stock.
#25 — 805546A 2 — BRACKET, Oil Cooler (1 required per assembly) — (With Power Steering)
		805546A 2 - Bracket - OilCooler [ More info ] $91.99 Available to Order: Shipping delay up to 10 days.
#26 — 77223 3 — PAD (1 required per assembly) — (With Power Steering)
		77223 3 - Pad [ More info ] $5.99 Available to Order: Shipping delay up to 10 days.
#27 — 816585 — SCREW, (.375-18 x .875) (1 required per assembly) — (With Power Steering)
		10-816585 - Screw [ More info ] $3.39 Available to Order: Shipping delay up to 10 days.
#28 — 47587A 2 — HOUSING ASSEMBLY, Thermostat (1 required per assembly)
		47587A 2 - Thermostat Housing Assembly [ More info ] Unavailable
		861493A 3 - Thermostat Housing Assembly [ More info ] Unavailable
		861493A07 - Thermostat Housing Kit [ More info ] $193.49 Available to Order: Shipping delay up to 10 days.
		MC-29-60372 - Upper Thermostat Housing [ More info ] $62.99 $47.71 6 In Stock.
		MC-29-47587 - Lower Thermostat Housing [ More info ] $68.99 $52.82 5 In Stock.
#29 — 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.
#31 — 814680 — GASKET (1 required per assembly)
		27-814680 - Water Distribution Block Gasket [ More info ] Unavailable
		27-814680 1 - Thermostat Housing Gasket [ More info ] $4.19 4 In Stock.
#32 — 90059 — SCREW, (.375-16 x .875) (2 required per assembly) — (With Out Power Steering)
		10-90059 - Screw [ More info ] $2.79 Available to Order: Shipping delay up to 10 days.
#32 — 90187 — SCREW, (.375-16 x 1.250) (1 required per assembly) — (With Power Steering)
		10-90187 - Screw [ More info ] $7.49 Available to Order: Shipping delay up to 10 days.
#33 — 807705 — ELBOW (90 Degree) (1 required per assembly)
		22-807705 - Elbow [ More info ] Unavailable
#34 — 59078 — THERMOSTAT (1 required per assembly)
		59078 - Thermostat, 140 Degrees [ More info ] In Stock
		18-3550 - Thermostat, 140 Degrees, 59078 [ More info ] $33.99 4 In Stock.
		59078Q 3 - Thermostat, 140 Degress, Priced Individually [ More info ] $38.49 2 In Stock.
		75-00400 - THERMOSTAT [ More info ] $34.99 $30.66 1 In Stock.
#35 — 47590 1 — GASKET (1 required per assembly)
		27-47590 1 - Gasket - Priced Individually [ More info ] $3.39 10+ In Stock.
#36 — 60372A 2 — COVER ASSEMBLY, Thermostat Housing (1 required per assembly)
		60372A 2 - Thermostat Cover Assembly [ More info ] $47.99 1 In Stock.
#37 — 79654 — SCREW, (.312-18 x 2.380) (2 required per assembly)
		10-79654 - Screw [ More info ] Unavailable
#38 — 805628T — LIFTING EYE (1 required per assembly)
		54-805628T - Lifting Eye - Priced Individually, NLA [ More info ] $4.50 $3.82 2 In Stock.
#39 — 806993 — HOSE, Housing Cover To Manifold (1 required per assembly)
		32-806993 - Hose [ More info ] Unavailable
		32-8M0172867 - Hose [ More info ] $21.89 Available to Order: Shipping delay up to 10 days.
#41 — 96879 — HOSE, Housing To Water Pump (1 required per assembly)
		32-96879 - Hose - Housing To Water Pump [ More info ] Unavailable
		32-8M0071007 - Hose [ More info ] $45.99 $45.11 In Stock
		18-70931 - Hose, 32-96879, 311075 [ More info ] $36.99 $36.82 1 In Stock.
#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.