Cylinder Block & Covers for Mercury / Mariner (6 / 8 HP 9.9 / 15 HP) Engine

Start Over Different Model > Different Engine Section > CYLINDER BLOCK AND COVERS

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 ]

# — 811686A92 — POWERHEAD ASSEMBLY-COMPLETE (1 required per assembly) — (6/8/9.9)
		811686A92 - Powerhead MARINE [ More info ] Unavailable
		811686A97 - Powerhead MARINE [ More info ] Unavailable
		811686T97 - Powerhead Assembly, NLA [ More info ] Unavailable
# — 12893A87 — POWERHEAD ASSEMBLY-COMPLETE (1 required per assembly) — (6) (Use with WMC-20/20A Carb)
		12893A87 - Powerhead MARINE [ More info ] Unavailable
		12893A92 - Powerhead MARINE [ More info ] Unavailable
		12893A97 - Powerhead MARINE [ More info ] Unavailable
		12893T97 - Powerhead Assembly 6HP, NLA [ More info ] Unavailable
# — 19072A88 — POWERHEAD ASSEMBLY-COMPLETE (1 required per assembly) — (15)
		19072A88 - Powerhead MARINE [ More info ] Unavailable
		19072T88 - Powerhead MARINE,NLA [ More info ] Unavailable
# — 12893A93 — POWERHEAD ASSEMBLY-COMPLETE (1 required per assembly) — (6) (Use with WMC-20B Carb)
#1 — 8473A13 — CYLINDER BLOCK(6) (1 required per assembly) — (USEW/W/MC-20/20A/20B CARB)
		875-8473A13 - Cylinder Block [ More info ] Unavailable
		875-8473A20 - Cylinder Block [ More info ] Unavailable
		875-8473T20 - Cylinder Block, NLA [ More info ] Unavailable
#1 — 8473A12 — CYLINDER BLOCK/CRANKCASE(6/8/9.9) (1 required per assembly)
		875-8473A12 - Cylinder Block [ More info ] Unavailable
		875-8473A21 - Cylinder Block [ More info ] Unavailable
		875-8473T21 - Cylinder Block, NLA [ More info ] Unavailable
#1 — 9727A 2 — CYLINDER BLOCK(15) (1 required per assembly)
		881-9727A 2 - Cylinder Block [ More info ] Unavailable
		881-9727T 2 - Cylinder Block, NLA [ More info ] Unavailable
#2 — 85171 — DOWELPIN, CYLINDER BLOCK (2 required per assembly)
		17-85171 - Dowel Pin , Cylinder Block [ More info ] $4.49 Available to Order: Shipping delay up to 10 days.
#3 — 42463 — STUD, CARBURETOR (2 required per assembly)
		16-42463 - STUD [ More info ] Unavailable
		16-42463 2 - Stud [ More info ] $16.49 Available to Order: Shipping delay up to 10 days.
#4 — 42698 — CHECK VALVE, BLEED HOSE (1 required per assembly)
		21-42698 - Check Valve [ More info ] Unavailable
		21-42698 1 - Check Valve [ More info ] Unavailable
		21-42698 2 - Check Valve [ More info ] $37.55 1 In Stock.
#5 — 13835 56 — HOSE, BLEED (1 required per assembly)
		32-13835 56 - Tubing [ More info ] Unavailable
		32-13835100 - Tubing-48 Inch [ More info ] Unavailable
		32-99130100 - Tubing - 48 Inch [ More info ] Unavailable
#6 — 42984 — STUD, CYLINDER BLOCK (2 required per assembly)
		16-42984 - Stud [ More info ] Unavailable
		16-42984 5 - STUD Note: Priced Individually [ More info ] Unavailable
		16-816194 9 - Stud [ More info ] $12.19 Available to Order: Shipping delay up to 10 days.
#7 — 42125 1 — SCREW, CRANKCASE TO CYLINDER BLOCK (6 required per assembly)
		10-42125 1 - Screw [ More info ] $2.99 10+ In Stock.
#7A — 17866 — GROOVE PIN(15) (1 required per assembly)
		17-17866 - Pin, Groove [ More info ] $3.09 Available to Order: Shipping delay up to 10 days.
#8 — 40063 4 — NUT, CYLINDER BLOCK STUD (2 required per assembly)
		11-40063 4 - Nut [ More info ] Unavailable
		11-826833 6 - Nut , Priced Individually [ More info ] Unavailable
		11-40144 - NUT Note: Priced Individually [ More info ] Unavailable
		11-40138 6 - Nut - Priced Individually [ More info ] $5.09 10+ In Stock.
#9 — 19186 1 — GASKET, POWERHEAD (1 required per assembly)
		27-19186 1 - Gasket [ More info ] $9.69 6 In Stock.
#10 — 42381A 2 — REED BLOCK ASSEMBLY (1 required per assembly)
		42381A 2 - REED BLOCK [ More info ] Unavailable
		828435A 1 - REED BLOCK ASSY [ More info ] Unavailable
		828435A 3 - Reed Block Assembly [ More info ] Unavailable
#11 — 42657A 1 — CHECK VALVE ASSEMBLY (1 required per assembly)
		21-42657A 1 - Check Valve Assembly [ More info ] $7.78 6 In Stock.
		21-42657A 3 - Check Valve Assembly [ More info ] $7.29 Available to Order: Shipping delay up to 10 days.
#12 — 42137 — SEAL, REED BLOCK (1 required per assembly)
		26-42137 - Seal, NLA [ More info ] Unavailable
#13 — 19598 1 — GASKET, REED BLOCK (1 required per assembly)
		27-19598 1 - Gasket [ More info ] Unavailable
		27-19598 2 - Gasket [ More info ] $9.89 1 In Stock.
#14 — 40001 71 — SCREW, REED BLOCK (3 required per assembly)
		10-40001 71 - Screw - Priced Individually [ More info ] $1.10 $0.88 10+ In Stock.
#15 — 42044 — REED (2 required per assembly)
		34-42044 - REED Note: Priced Individually [ More info ] Unavailable
		34-825141 - Reed [ More info ] $9.89 8 In Stock.
#16 — 17903 1 — REED STOP (2 required per assembly)
		17903 1 - Ord 828435A 3, NLA [ More info ] Unavailable
#17 — 40057 64 — SCREW, REED ATTACHING (6 required per assembly)
		10-40057 64 - Screw, NLA [ More info ] $1.62 10+ In Stock.
#18 — 40021 3 — NUT, CARBURETOR STUD (2 required per assembly)
		11-40021 3 - Nut - Priced Individually [ More info ] $2.89 Available to Order: Shipping delay up to 10 days.
#19 — 42521 — COVER, EXHAUST (1 required per assembly)
		42521 - Cover [ More info ] Unavailable
		42521001 - Cover [ More info ] Unavailable
		8M0048005 - Cover Exhaust Man [ More info ] $71.99 Available to Order: Shipping delay up to 10 days.
#21 — 19185 — GASKET, EXHAUST COVER (1 required per assembly)
		27-19185 - Exhaust Cover Gasket [ More info ] $11.79 3 In Stock.
#22 — 42365 1 — BAFFLE PLATE (1 required per assembly)
		42365 1 - PLATE-BAFFLE [ More info ] Unavailable
		42365 - Baffle Plate [ More info ] $45.49 Available to Order: Shipping delay up to 10 days.
#23 — 19184 — GASKET, BAFFLE PLATE (1 required per assembly)
		27-19184 - Baffle Plate Gasket [ More info ] $10.39 3 In Stock.
#24 — 19107F 1 — INTAKE COVER (1 required per assembly) — FITTING IS INSTALLED IN BLOCK
		19107F 1 - Cover [ More info ] $15.99 $13.54 10+ In Stock.
#25 — 56759 — FITTING (1 required per assembly) — FITTING IS INSTALLED IN BLOCK
		22-56759 - Fitting [ More info ] $11.59 Available to Order: Shipping delay up to 10 days.
#24 — 17863A 1 — INTAKE COVER (1 required per assembly) — ELBOW IS INSTALLED IN INTAKE COVER
		17863A 1 - Intake Cover Assembly, NLA [ More info ] $8.00 $6.78 7 In Stock.
#25 — 15133 — ELBOW (1 required per assembly) — ELBOW IS INSTALLED IN INTAKE COVER
		22-15133 - Fitting [ More info ] $21.68 1 In Stock.
#27 — 59169 — TEE (1 required per assembly)
		22-59169 - Fitting [ More info ] Unavailable
		22-59169 2 - Fitting [ More info ] Unavailable
		22-59169003 - Fitting - Priced Individually [ More info ] $5.99 2 In Stock.
#28 — 56762 — STA-STRAP (AR required per assembly)
		56762 - Tie Strap - Priced Individually [ More info ] $0.50 3 In Stock.
#29 — 19203 1 — GASKET, INTAKE COVER (1 required per assembly)
		27-19203 1 - Gasket [ More info ] $6.79 Available to Order: Shipping delay up to 10 days.
#31 — 99127109 — HOSE, TELL TALE (1 required per assembly)
		32-99127109 - TUBING-57 INCH [ More info ] Unavailable
		32-830756109 - Hose, 57 Inch [ More info ] Unavailable
		32-8M0047428 - Hose -57 Inch [ More info ] Unavailable
		32-8M0108355 - Hose, 57 Inch [ More info ] $52.49 2 In Stock.
#32 — 94848 — FITTING, TELL TALE HOSE-BOTTOM COWL (1 required per assembly)
		22-94848 - Fitting [ More info ] $4.79 1 In Stock.
#33 — 8906A 1 — COVER ASSEMBLY (1 required per assembly)
		1033-8906A 1 - Cover Assembly [ More info ] Unavailable
		1033-8906A02 - Cover Assembly [ More info ] $88.49 Available to Order: Shipping delay up to 10 days.
#34 — 19207 1 — GASKET (1 required per assembly)
		27-19207 1 - Cylinder Cover Gasket [ More info ] Unavailable
		27-19207002 - Cylinder Cover Gasket [ More info ] $9.39 6 In Stock.
#35 — 14673 2 — COVER, THERMOSTAT (1 required per assembly)
		14673 2 - Thermostat Cover [ More info ] Unavailable
		8M0039352 - Thermostat Cover [ More info ] $21.89 Available to Order: Shipping delay up to 10 days.
#36 — 19205 1 — GASKET (1 required per assembly)
		27-19205 1 - Gasket [ More info ] Unavailable
		27-19205002 - Thermostat Cover Gasket [ More info ] $2.99 5 In Stock.
#38 — 14586 — THERMOSTAT(120) (1 required per assembly)
		14586 - Thermostat, 120 Degrees [ More info ] $40.99 8 In Stock.
		18-3549 - Thermostat, 120 Degrees, 14586 [ More info ] $28.37 10+ In Stock.
#39 — 62386 — GASKET, THERMOSTAT (1 required per assembly)
		27-62386 - Thermostat Gasket [ More info ] Unavailable
		27-62386001 - Thermostat Gasket [ More info ] $2.50 1 In Stock.
		18-0182-9 - Gasket 27-62386 2-Pack [ More info ] $4.13 $3.56 Available to Order: Shipping delay up to 10 days.
		27-8M0204714 - Thermostat Gasket, Priced Individually [ More info ] $2.89 2 In Stock.
#40 — 29111 — FITTING(STRAIGHT)(NEW DESIGN) (1 required per assembly)
		22-29111 - Fitting [ More info ] Unavailable
		22-29111 1 - NIPPLE [ More info ] Unavailable
		22-29111 2 - Fitting [ More info ] $9.59 Available to Order: Shipping delay up to 10 days.
#40 — 99664 — ELBOW(OLD DESIGN) (1 required per assembly)
		22-99664 - Elbow [ More info ] $1.00 3 In Stock.
		22-99664 1 - Elbow [ More info ] Unavailable
		22-99664 2 - Elbow [ More info ] $2.69 Available to Order: Shipping delay up to 10 days.
#41 — 40062129 — SCREW, COVER ATTACHING (6 required per assembly)
		10-40062129 - Screw [ More info ] $1.10 Available to Order: Shipping delay up to 10 days.