Divider Plate & Exhaust Plate for Mercury / Mariner (175 HP V-6 (1976-1988 Combined Books)) Engine

Start Over Different Model > Different Engine Section > Divider Plate and Exhaust Plate

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 ]

# — 79583A81 — GASKET SET (1 required per assembly) — SN# 5875204 THRU 6618750
		27-79583A81 - Engine Gasket Set [ More info ] Unavailable
# — NLA — No Longer Available, Gasket Set (1 required per assembly) — (Service Bulletin 81-8) SN# USA-5875203/AUS-8072022 & Below
		NLA - No Longer Availab [ More info ] Unavailable
# — 11338A88 — GASKET SET, Engine Overhaul (1 required per assembly) — SN# 6618751 & Up
		27-11338A88 - Engine Overhaul Gasket Set [ More info ] Unavailable
		18-4319 - Gasket, 27-11338A88 [ More info ] $225.16 $202.22 In Stock
#1 — 90484 1 — GASKET (2 required per assembly) — (Ref. # 2 Casting # 99169)
		27-90484 1 - Gasket - Priced Individually [ More info ] $22.11 2 In Stock.
#2 — 99169A 1 — PLATE (1 required per assembly) — (Ref. # 2 Casting # 99169)
		99169A 1 - Exhaust Divider Plate, NLA [ More info ] $154.37 1 In Stock.
#3 — 814754 — SEAL (1 required per assembly) — (Ref. # 2 Casting # 99169)
		26-814754 - Seal [ More info ] $10.70 Available to Order: Usually ships within 10 days.
#4 — 95067 — COVER (1 required per assembly) — (Ref. # 2 Casting # 99169)
		95067 - Exhaust Manifold Cover [ More info ] $93.99 $93.04 10+ In Stock.
#5 — 74824 — SCREW, (.312-18 x 1.250) (1-1/4") (21 required per assembly) — (Ref. # 2 Casting # 99169)
		10-74824 - Screw - Priced Individually [ More info ] $1.70 4 In Stock.
#6 — 76636 — GASKET (2 required per assembly) — (Ref. # 7 Casting # 76637 or 78305)
		27-76636 - Divider Plate Gasket [ More info ] $18.25 Available to Order: Usually ships within 10 days.
#7 — 76637A 1 — DIVDER PLATE (1 required per assembly) — (Ref. # 7 Casting # 76637)
		76637A 1 - Plate,NLA [ More info ] Unavailable
#7 — 78305A 1 — DIVIDER PLATE (1 required per assembly) — (Ref. # 7 Casting # 78305)
		78305A 1 - Plate Assembly, NLA [ More info ] Unavailable
#7 — 87321 — PLATE (1 required per assembly) — (Ref. # 7 Casting # 87321)
		87321 - Plate [ More info ] Unavailable
		87321T - Plate [ More info ] $272.00 Available to Order: Usually ships within 10 days.
#9 — 67340T — COVER (1 required per assembly) — (Ref. # 7 Casting # 76637 or 78305)
		67340T - Cover [ More info ] Unavailable
		67340 - Cover, NLA [ More info ] Unavailable
#10 — 35386 — SCREW, (.312-18 x 1.00) (17 required per assembly) — (Ref. # 7 Casting # 76637 or 78305)
		10-35386 - Screw - Priced Individually [ More info ] $1.10 10+ In Stock.
#11 — 73595 — WASHER (1 required per assembly) — (Ref. # 7 Casting # 76637 or 78305)
		12-73595 - WASHER,NLA [ More info ] Unavailable
#11 — 47483 — J CLIP (1 required per assembly) — (Ref. # 7 Casting # 87321)
		54-47483 - J Clip [ More info ] $8.20 Available to Order: Usually ships within 10 days.
#18 — 75909 — GASKET (1 required per assembly) — SN# 6618750 & Below
		27-75909 - Exhaust Plate Gasket [ More info ] $17.30 $14.70 7 In Stock.
		18-0369 - Gasket, 27-75909 [ More info ] $14.58 $7.67 Available to Order: Usually ships within 10 days.
#18 — 99176 3 — GASKET (1 required per assembly) — (Black and Gray) SN# 6618751 & Up
		27-99176 3 - Gasket [ More info ] Unavailable
		27-99176 4 - Gasket [ More info ] $24.39 7 In Stock.
		18-2506-1-9 - Exhaust Plate Gasket 18-2506-1-9 (2/Pkg) [ More info ] $25.99 $21.68 In Stock
#18 — 99776 1 — GASKET (2 required per assembly) — (Oyster)
		27-99776 1 - Gasket [ More info ] $18.90 Available to Order: Usually ships within 10 days.
		18-2508-1-9 - Gasket, 27-99776 1, Set Of 2 [ More info ] $31.99 $30.32 1 In Stock.
#19 — 75836A 1 — EXHAUST PLATE (1 required per assembly) — SN# 6618750 & Below
		75836A 1 - Plate,NLA [ More info ] Unavailable
#19 — 41944A 5 — PLATE ASSEMBLY (1 required per assembly) — (Black and Gray) SN# 6618751 & Up
		41944A 5 - Exhaust Extension Plate, NLA [ More info ] Unavailable
#19 — 41944A 4 — EXHAUST PLATE (1 required per assembly) — (Oyster)
		41944A 4 - EXHAUST PLATE [ More info ] Unavailable
		41944A 2 - Plate [ More info ] Unavailable
#20 — 99664 — ELBOW (1 required per assembly)
		22-99664 - Elbow [ More info ] Unavailable
		22-99664 1 - Elbow [ More info ] Unavailable
		22-99664 2 - Elbow [ More info ] $2.60 10+ In Stock.
#21 — 70748 2 — SEAL (1 required per assembly)
		70748 2 - Seal, NLA [ More info ] $7.78 10+ In Stock.
#22 — 68010 1 — BRACKET (1 required per assembly)
		68010 1 - Bracket [ More info ] $10.80 Available to Order: Usually ships within 10 days.
#23 — 48408 — SCREW, (#10-16 x .500) (8 required per assembly)
		10-48408 - Screw - Priced Individually [ More info ] $2.14 Available to Order: Usually ships within 10 days.
#24 — 20033 — PIN, Dowel (2 required per assembly)
		17-20033 - Pin -Dowel - Priced Individually [ More info ] $1.27 10+ In Stock.
		17-43044 - Pin -Dowel-solid [ More info ] $2.40 Available to Order: Usually ships within 10 days.
#25 — 20553 — WASHER, (.406 x .734 x .063) (2 required per assembly)
		12-20553 - Washer - Priced Individually [ More info ] $1.40 10+ In Stock.
#26 — 34863 — NUT, (.375-24) (2 required per assembly)
		11-34863 - Nut (3/8-24) [ More info ] $1.49 10+ In Stock.
		11-826709113 - Nut, (.375-24) Stainless Steel [ More info ] Unavailable
		11-8M0042636 - Nut - Brass , Priced Individually [ More info ] $1.70 2 In Stock.
		118M0204726 - NUT-BRASS Note: Priced Individually [ More info ] $1.70 Available to Order: Usually ships within 10 days.
#27 — 27132 — BUSHING (1 required per assembly)
		23-27132 - Bushing [ More info ] $4.42 Available to Order: Usually ships within 10 days.
#28 — 66727 — SCREW, (.312-18 x 1.250) (1 required per assembly)
		10-66727 - Screw - Priced Individually [ More info ] $2.90 10 In Stock.
#29 — 68783 — SCREW, (.312-18 x 2.50) (1 required per assembly)
		10-68783 - Screw - Priced Individually [ More info ] $6.40 Available to Order: Usually ships within 10 days.
#30 — 66725 — SCREW, (.375-16 x 3.50) (3 required per assembly)
		10-66725 - Screw [ More info ] Unavailable
		10-898833 - Screw [ More info ] $10.50 Available to Order: Usually ships within 10 days.
#31 — 12602 — GROMMET (1 required per assembly)
		25-12602 - Grommet , 7/16 in ID - 7/8 in long [ More info ] $1.25 4 In Stock.
		25-12602 1 - Grommet [ More info ] $1.50 1 In Stock.
		25-12602002 - Grommet (.44 I.d.) [ More info ] $4.40 Available to Order: Usually ships within 10 days.
#32 — 90435 — MOUNT (3 required per assembly)
		90435 - Rubber Mount [ More info ] $59.05 5 In Stock.
#33 — 21249 — WASHER (6 required per assembly)
		12-21249 - Washer - Priced Individually [ More info ] $8.20 $1.65 10+ In Stock.
#34 — 20361 — NUT, (.250-28) (6 required per assembly)
		118267089 [ More info ] $1.00 10+ In Stock.
		11-826708 9 - Nut - Priced Individually [ More info ] $1.40 10+ In Stock.
		18-3722-9 - Lock Nut, 121731, 11-35888, Pack of 5 [ More info ] $11.99 $6.88 Available to Order: Usually ships within 10 days.
#35 — 42657A 1 — CHECK VALVE (1 required per assembly) — SN# 6618751 & Up
		21-42657A 1 - Check Valve Assembly [ More info ] $7.78 7 In Stock.
		21-42657A 3 - Check Valve Assembly [ More info ] $7.00 Available to Order: Usually ships within 10 days.
#36 — 18103 2 — PLATE (1 required per assembly) — (Oyster)
		18103 2 - PLATE,NLA [ More info ] Unavailable
#37 — 93221 — GROMMET (1 required per assembly) — (Oyster)
		25-93221 - Grommet, Water Tube [ More info ] Unavailable
		25-93221002 - Water Tube Grommet [ More info ] $3.60 Available to Order: Usually ships within 10 days.
#38 — 28636 — SCREW, (.250-20 x .750) (13 required per assembly) — (Oyster)
		10-28636 - Screw - Priced Individually [ More info ] $1.70 10+ In Stock.
#39 — 29245 — WASHER, (.281 x .500 x .060) (13 required per assembly) — (Oyster)
		12-29245 - Washer [ More info ] $0.89 10+ In Stock.
		12-8M0204649 - WASHER Note: Priced Individually [ More info ] $1.20 9 In Stock.
#40 — 56374 — NUT, (.250-20) (13 required per assembly) — (Oyster)
		11-56374 - Nut (1/4-20) [ More info ] $1.99 10+ In Stock.
		11-826709 8 - Nut - Priced Individually [ More info ] $6.60 $1.33 10+ In Stock.