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Mariner Head Gaskets

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Model/ HP

(4 to 250)

Model/ HP

Cyl.

Beg. S/N

End. S/N

Sierra Head Gasket

Mallory Head Gasket

4 HP (4 stroke)1OR000001& UP18-3844 -
5 HP (4 stroke)1OR000001& UP18-3844 -
6 HP (4 stroke)1OR000001& UP18-3844 -
25 HP (4 stroke)2OG760300& UP18-3846-
40 HP (4 stroke)4OG760300& UP18-3845 -
45 HP (4 stroke)4OG760300& UP18-3845 -
50 HP (4 stroke)4OG760300& UP18-3845 -
105 JET6D082000& UP18-3864 9-63854
V-135V-6A904646C23955218-3863 9-63855
V-135V-6C239553G96049918-3861 9-63851
140 JETV-6D082000G96049918-3864 9-63854
V-150V-66042946C23955218-3863 9-63855
V-150V-6C239553G96049918-3861 9-63851
V-150 XR4 MAGIIIV-6B242885C23955218-3862 9-63853
V-150 XR4V-6C239553D08199918-3871 9-63856
V-150 EFI XR6MAGIIIV-6D082000G96049918-3864 9-63854
150 MARV-66038681C23955318-3863 9-63855
150 MARV-6C239554& UP18-3861 9-63851
V-175V-66618751C23955218-3862 9-63853
V-175V-6C239553D08199918-3871 9-63856
V-175V-6D082000G96049918-3864 9-63854
V-175 XRI EFIV-6D000750D08199918-3871 9-63856
V-175 XRI EFIV-6D000750D08199918-3864 9-63854
V-175 XRI EFIV-6D082000G30304518-3864 9-63854
V-200,200,2000V-64839034607319118-3872 9-63852
V-200V-66073192620399018-3872 9-63852
V-200 (EFI)V-6OC100861OC29151918-3862 9-63853
V-200 (EFI)V-6OC291520OG96049918-3862 9-63853
V-200 (2.4L)V-66203991C29151918-3862 9-63853
V-200 (2.5L)V-6C291520& UP18-3864 9-63854
V-200 XRI EFIV-6C100861C29151918-3862 9-63853
V-200 XRI EFIV-6C291520& UP18-3864(2) 9-63854
V-220V-6B117316& UP18-3862 9-63853
V-225V-65628028D28081218-3872 9-63852
V-225V-6OD280813& UP18-7400 -
V-225 SEA PROV-6OG245605OT40899918-7400 -
V-225 EFI (3.0L)V-6OG129222OG76029918-7400 -
V-250 EFI (3.0L)V-6OG129222OT40899918-7400 -

Model/ HP

Cyl.

Beg. S/N

End. S/N

Sierra Head Gasket

Mallory Head Gasket

Notes:
(2) : 2 head gaskets required
Refine Parts List
Model/ HP

(4 to 250)
Blowout
Save 22%-45% Off.
Yamaha Head Gasket - 18-3804 - Sierra
Meltdown Sale Price: $26.09
Save: $9.40
(26% Off $35.49)
Part # 18-3804 ValueShip™ Eligible
SHIPS TODAY!* if ordered in 5 hrs 43 mins.
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Replaces OEM part #
  • MERCURY MARINE 27-84733M
  • MERCURY MARINE 27-19138M
  • MERCURY MARINE 27-19138
  • YAMAHA 689-W0001-A1-00
  • YAMAHA 689-11181-02-00
    For: Mercury/Mariner Model 30A; S/N Code 689
Head Gasket - 18-3827 - Sierra
Meltdown Sale Price: $27.89
Save: $10.89
(28% Off $38.78)
Part # 18-3827 ValueShip™ Eligible
SHIPS TODAY!* if ordered in 5 hrs 43 mins.
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Replaces OEM part #
  • MERCURY MARINE 27-8254821
  • YAMAHA 6G8-11181-A1-00
  • YAMAHA 6G8-11181-00-00

  • For: Mercury/Mariner 8, 9.9 HP 4-Stroke
Gasket Head - 18-3828 - Sierra
Meltdown Sale Price: $13.49
Save: $4.96
(26% Off $18.45)
Part # 18-3828 ValueShip™ Eligible
SHIPS TODAY!* if ordered in 5 hrs 43 mins.
Hurry! Only 1 left in stock
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Replaces OEM part #
  • MERCURY MARINE 27-98990M
  • MERCURY MARINE 27-83899M
  • MERCURY MARINE 27-18937M
  • MERCURY MARINE 27-18937
  • YAMAHA 6E7-11181-A1-00
  • YAMAHA 6E7-11181-00-00
    For: Mercury/Mariner Model 9.9C;S/N Code 682 & Model 15C, S/N Code 684
Head Gasket - 18-3844 - Sierra
Meltdown Sale Price: $18.89
Part # 18-3844 ValueShip™ Eligible
SHIPS TODAY!* if ordered in 5 hrs 43 mins.
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Replaces OEM part #
  • MERCURY MARINE 27-803508

  • For: Mercury/Mariner 4-Stroke O/B's, 4/5/6 HP S/N OR000001 & up
Gasket Cylinder Head - 18-3845 - Sierra
Meltdown Sale Price: $62.99
Part # 18-3845 ValueShip™ Eligible
SHIPS TODAY!* if ordered in 5 hrs 43 mins.
Hurry! Only 1 left in stock
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Replaces OEM part #
  • MERCURY MARINE 27-825032

  • For: Mercury/Mariner 4-Strokes O/B's, 40/45/50 HP S/N OG760300 & up
Mry Head Gaskt 135-150Hp - 18-3861 - Sierra
Meltdown Sale Price: $27.89
Save: $8.55
(23% Off $36.44)
Part # 18-3861 ValueShip™ Eligible
SHIPS TODAY!* if ordered in 5 hrs 43 mins.
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Replaces OEM part #
  • MERCURY MARINE 27-18785-1

  • For: Mercury/Mariner Model 135,150,and XR4
Mry Head Gasket V6 - 18-3862 - Sierra
Meltdown Sale Price: $23.39
Save: $7.78
(24% Off $31.17)
Part # 18-3862 ValueShip™ Eligible
SHIPS TODAY!* if ordered in 5 hrs 43 mins.
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Replaces OEM part #
  • MERCURY MARINE 27-41246-1

  • For: Mercury/Mariner Model 175, 200, XR4
Head Gasket - 18-3863 - Sierra
Meltdown Sale Price: $22.49
Save: $7.74
(25% Off $30.23)
Part # 18-3863 ValueShip™ Eligible
Replaces OEM part #
  • MERCURY MARINE 27-96542-1

  • For Mercury/Mariner Model 150
Head Gasket - 18-3864 - Sierra
Meltdown Sale Price: $28.79
Save: $10.14
(26% Off $38.93)
Part # 18-3864 ValueShip™ Eligible
SHIPS TODAY!* if ordered in 5 hrs 43 mins.
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Replaces OEM part #
  • MERCURY MARINE 27-822844-1

  • For: Mercury/Mariner Model 175, 200 and XR6
Head Gasket - 18-3871 - Sierra
Meltdown Sale Price: $31.49
Save: $11.46
(26% Off $42.95)
Part # 18-3871 ValueShip™ Eligible
SHIPS TODAY!* if ordered in 5 hrs 43 mins.
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Replaces OEM part #
  • MERCURY MARINE 27-18786-1

  • For: Mercury/Mariner Model 175, XR4, Mag 11
Head Gasket - 18-3872 - Sierra
Meltdown Sale Price: $35.09
Save: $12.75
(26% Off $47.84)
Part # 18-3872 ValueShip™ Eligible
SHIPS TODAY!* if ordered in 5 hrs 43 mins.
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Replaces OEM part #
  • MERCURY MARINE 27-41245-1

  • For:Mercury/Mariner 200 and 225 HP
20 Hp Cylinder Block Gasket - 18-0372 - Sierra
Meltdown Sale Price: $6.29
Part # 18-0372 ValueShip™ Eligible
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Replaces OEM part #
  • MERCURY MARINE 27-78410
Exhaust Cover Gasket 80 Hp - 18-2500-9 - Sierra
Meltdown Sale Price: $11.69
Part # 18-2500-9 ValueShip™ Eligible
Replaces OEM part #
  • MERCURY MARINE 27-85493
Pkg. of 2
Block Cover Gasket 3 Cylinder - 18-2504-9 - Sierra
Meltdown Sale Price: $8.99
Save: $3.71
(29% Off $12.70)
Part # 18-2504-9 ValueShip™ Eligible
SHIPS TODAY!* if ordered in 5 hrs 43 mins.
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Replaces OEM part #
  • MERCURY MARINE 27-88449
  • Pkg. of 2
Cylinder Block Head Gasket 75-80 Hp - 18-2505-9 - Sierra
Meltdown Sale Price: $17.09
Part # 18-2505-9 ValueShip™ Eligible
SHIPS TODAY!* if ordered in 5 hrs 43 mins.
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Replaces OEM part #
  • MERCURY MARINE 27-96171-1
  • Pkg. of 2
Cylinder Block Gasket 40-50 Hp - 18-2507-9 - Sierra
Meltdown Sale Price: $8.99
Save: $4.41
(32% Off $13.40)
Part # 18-2507-9 ValueShip™ Eligible
SHIPS TODAY!* if ordered in 5 hrs 43 mins.
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Replaces OEM part #
  • MERCURY MARINE 27-85487
  • PKG. of 2
Cylinder Block Head Gasket - 18-2740 - Sierra
Meltdown Sale Price: $10.79
Save: $3.89
(26% Off $14.68)
Part # 18-2740 ValueShip™ Eligible
SHIPS TODAY!* if ordered in 5 hrs 43 mins.
Hurry! Only 1 left in stock
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Replaces OEM part #
  • MERCURY MARINE 27-43005-7
  • For: 65 Jet, 75 HP 3 cyl, 90 HP 3 cyl.
Block Cover Gasket 35-40 Hp - 18-2805-9 - Sierra
Meltdown Sale Price: $7.19
Save: $2.24
(23% Off $9.43)
Part # 18-2805-9 ValueShip™ Eligible
SHIPS TODAY!* if ordered in 5 hrs 43 mins.
Hurry! Only 1 left in stock
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Replaces OEM part #
  • MERCURY MARINE 27-85490-2
  • Pkg. of 2
Cylinder Cover Gasket V6 - 18-2806-9 - Sierra
Meltdown Sale Price: $13.49
Part # 18-2806-9 ValueShip™ Eligible
SHIPS TODAY!* if ordered in 5 hrs 43 mins.
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Replaces OEM part #
  • MERCURY MARINE 27-65788
  • Pkg. of 2
Block Cover Gasket 90-115 Hp - 18-2807-9 - Sierra
Meltdown Sale Price: $17.99
Save: $6.39
(26% Off $24.38)
Part # 18-2807-9 ValueShip™ Eligible
SHIPS TODAY!* if ordered in 5 hrs 43 mins.
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Replaces OEM part #
  • MERCURY MARINE 27-98185-3
Pkg. of 2
Cylinder Cover Gasket V6 - 18-2808-9 - Sierra
Meltdown Sale Price: $7.19
Save: $3.17
(30% Off $10.36)
Part # 18-2808-9 ValueShip™ Eligible
SHIPS TODAY!* if ordered in 5 hrs 43 mins. Replaces OEM part #
  • MERCURY MARINE 27-96278
  • Pkg. of 2
50-60 Hp Block Cover Gasket - 18-2809-9 - Sierra
Meltdown Sale Price: $13.49
Save: $5.33
(28% Off $18.82)
Part # 18-2809-9 ValueShip™ Eligible
SHIPS TODAY!* if ordered in 5 hrs 43 mins.
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Replaces OEM part #
  • MERCURY MARINE 27-43779-2
  • Pkg. of 2
Block Cover Gasket 45-50 Hp - 18-2810-9 - Sierra
Meltdown Sale Price: $16.19
Save: $6.40
(28% Off $22.59)
Part # 18-2810-9 ValueShip™ Eligible
SHIPS TODAY!* if ordered in 5 hrs 43 mins.
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Replaces OEM part #
  • MERCURY MARINE 27-43777-2
  • Pkg. of 2
Block Cover Gasket - 18-2837-9 - Sierra
Meltdown Sale Price: $4.49
Save: $3.77
(45% Off $8.26)
Part # 18-2837-9 ValueShip™ Eligible
SHIPS TODAY!* if ordered in 5 hrs 43 mins.
Hurry! Only 1 left in stock
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Replaces OEM part #
  • MERCURY MARINE 27-41382
Pkg. of 2
Cylinder Block Head Gasket - 18-2943 - Sierra
Meltdown Sale Price: $14.39
Save: $4.18
(22% Off $18.57)
Part # 18-2943 ValueShip™ Eligible
SHIPS TODAY!* if ordered in 5 hrs 43 mins.
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Replaces OEM part #
  • MERCURY MARINE 27-44328-4
    For: 81 Jet, 100 HP, 115 HP, and 125 HP 4 cyl. outboards
Mallory Gasket, Cylinder head 9-63964
Mallory Gasket, Cylinder head 9-63964
Meltdown Sale Price: $21.70
Save: $15.14
(41% Off $36.84)
Part # 9-63964 ValueShip™ Eligible
SHIPS TODAY!* if ordered in 5 hrs 43 mins.
Hurry! Only 1 left in stock
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Replaces GLM #:34910
Replaces Original Equipment Manufacturer(OEM):Yamaha
Replaces Original Equipment Manufacturer # (OEM #):6G8-11181-A1
Fits Application:9.9 4-stroke
Mallory Gasket, Cylinder Head 9-63856
Mallory Gasket, Cylinder Head 9-63856
Meltdown Sale Price: $24.60
Save: $16.82
(40% Off $41.42)
Part # 9-63856 ValueShip™ Eligible
SHIPS TODAY!* if ordered in 5 hrs 43 mins.
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Replaces GLM #:35890
Replaces Original Equipment Manufacturer(OEM):Mercury
Replaces Original Equipment Manufacturer # (OEM #):27-18786-1
Fits Application:175, XR4, MAG II
Mallory Gasket, Cylinder Head 9-63852
Mallory Gasket, Cylinder Head 9-63852
Meltdown Sale Price: $27.43
Save: $18.98
(40% Off $46.41)
Part # 9-63852 ValueShip™ Eligible
SHIPS TODAY!* if ordered in 5 hrs 43 mins.
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Replaces GLM #:35900
Replaces Original Equipment Manufacturer(OEM):Mercury
Replaces Original Equipment Manufacturer # (OEM #):27-41245-1
Fits Application:200, 225
Yamaha 9.9 / 15 Hp Cylinder Head Gasket
Yamaha 9.9 / 15 Hp Cylinder Head Gasket
Your Price: $11.81
Save: $2.00
(14% Off $13.81)
Part # 506-30
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    Yamaha:
  • 6E7-11181-A1
Merc. Vertical Reed Block Housing Gkt.
Merc. Vertical Reed Block Housing Gkt.
Your Price: $4.26
Save: $0.71
(14% Off $4.97)
Part # 516-26
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    Mercury:
  • 27-93536-1
Mercury 150 / 175 Hp V6 2.0L Head Cover Gasket
Mercury 150 / 175 Hp V6 2.0L Head Cover Gasket
Your Price: $2.67
Save: $0.45
(14% Off $3.12)
Part # 505-40
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    Mercury:
  • 27-65788
Mercury 150 Hp Head Cover Gasket
Mercury 150 Hp Head Cover Gasket
Your Price: $2.24
Save: $0.29
(11% Off $2.53)
Part # 505-37
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    Mercury:
  • 27-96278
Mercury 50 / 60-70 Hp 3 Cylinder Head Gasket
Mercury 50 / 60-70 Hp 3 Cylinder Head Gasket
Your Price: $5.00
Save: $0.84
(14% Off $5.84)
Part # 505-25
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    Mercury:
  • 27-43779-2
Mercury 40 / 50 Hp 4 Cylinder Head Gasket
Mercury 40 / 50 Hp 4 Cylinder Head Gasket
Your Price: $3.94
Save: $0.66
(14% Off $4.60)
Part # 505-30
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    Mercury:
  • 27-43777-2
Mercury 150 / 175 / 200 Hp 2.4L Head Gasket
Mercury 150 / 175 / 200 Hp 2.4L Head Gasket
Your Price: $17.07
Save: $2.88
(14% Off $19.95)
Part # 505-42
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    Mercury:
  • 27-41246-1
Mercury 150 Hp 2.0L Vertical Reeds Head Gasket
Mercury 150 Hp 2.0L Vertical Reeds Head Gasket
Your Price: $21.36 (Out of stock)
Save: $3.61
(14% Off $24.97)
Part # 505-36
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    Mercury:
  • 27-96542-1
Mercury 175 / 200 Hp 2.5L Head Gasket
Mercury 175 / 200 Hp 2.5L Head Gasket
Your Price: $19.43
Save: $3.27
(14% Off $22.70)
Part # 505-45
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    Mercury:
  • 27-822844-1
Johnson/Evinrude 120-140 Hp V4 Looper Big Bore Head Gasket
Johnson/Evinrude 120-140 Hp V4 Looper Big Bore Head Gasket
Your Price: $14.26 (Out of stock)
Save: $2.41
(14% Off $16.67)
Part # 505-10
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    OMC:
  • 340115
Yamaha 20 / 25 Hp Cylinder Head Gasket
Yamaha 20 / 25 Hp Cylinder Head Gasket
Your Price: $23.41
Save: $3.96
(14% Off $27.37)
Part # 506-21
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    Yamaha:
  • 6L2-11181-A2
Sierra
Average Customer Review for Head Gasket - 18-3863 - Sierra
Full StarFull StarFull StarFull StarFull Star Based On 1 Review | Write Review
Full StarFull StarFull StarFull StarFull StarHead gasket
by Richard from new Haven, Illinois on June 09, 2011
Havent used these yet.. But look like good quality
(0 of 1 people found this review helpful)
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Full StarFull StarFull StarFull StarFull Star Based On 1 Review | Write Review
Full StarFull StarFull StarFull StarFull StarFast delivery
by Gary from Memphis, Indiana on May 30, 2011
Fast delivery and very well packaged. I was concerned the gasket would be bent or broken during delivery but it was shipped with a cardboard backer inside a box. The gasket worked great.
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Full StarFull StarFull StarFull StarFull Star Based On 1 Review | Write Review
Full StarFull StarFull StarFull StarFull StarWater jacket Gaskets
by Richard from new Haven, Illinois on June 09, 2011
havent used these yet.. But they look like good quality and there are 2 in a package.. I thought there was 1.. .. Good buy
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Q:
Why are there 2 gaskets in the package?
A:
Yes, the "18-2807-9" comes 2 per pack.
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