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Powerhead Gasket Set
Your Price:
$42.99

Powerhead Gasket Set

676-18-4355

Key Features:

  • Does not include head gaskets

Interchanges/Replaces

GLM

  • 39330

Mercury Marine

  • 27-55306A72
  • 27-55306A73
  • 27-55306A74
  • 27-55306A75
  • 27-78028A78

List of Containing Parts

Sierra Item # OE/Competitor # Quantity Description Image Comments
18-0105GLM
  • 31910
Mercury Marine
  • 27-55306
  • 27-78028
  • 27-85489
  • 27-85489-2
  • 27-854891
  • 27-856728
1Baffle Plate to Block Gasket N/A
18-0182GLM
  • 30610
Johnson/Evinrude Outboard
  • 310058
Mallory
  • 9-60002
Mercury Marine
  • 27-62386
  • 27-62386001
Mercury Race Outboard
  • 27-62386001
1Thermostat Gasket N/A
18-0879GLM
  • 31400
Mallory
  • 9-60042
Mercury Marine
  • 27-37724
  • 27-38501
  • 27-385011
1Adapter Plate Gasket N/A
18-0914GLM
  • 30720
Mercury Marine
  • 27-66847
1Thermostat Cover Gasket N/A
18-0938GLM
  • 31000
Mercury Marine
  • 27-797971
1Water Inlet Gasket N/A
18-0940GLM
  • 32930
Mercury Marine
  • 27-55308
  • 27-78027
  • 27-85488
  • 27-854881
  • 27-854882
1Baffle Plate to Exhaust Gasket N/A
18-0988GLM
  • 31640
Mallory
  • 9-60058
Mercury Marine
  • 27-37976
  • 27-62860
  • 27-628601
1Powerhead Base Gasket N/A
18-2802GLM
  • 31500
Mercury Marine
  • 27-48164
  • 27-481641
1Carburetor Mounting Gasket N/A
18-2805GLM
  • 31920
Mercury Marine
  • 27-55307
  • 27-74708
  • 27-78029
  • 27-85490
  • 27-85490-2
  • 27-854901
  • 27-856729
1Block Cover Gasket N/A
18-2823GLM
  • 31060
Mallory
  • 9-60039
Mercruiser Stern Drive
  • 27-32769
Mercury Marine
  • 27-19553
  • 27-32769
1Lower Water Pump Gasket N/A
18-2824GLM
  • 31070
Mallory
  • 9-60029
Mercury Marine
  • 27-19551
  • 27-32770
1Upper Water Pump Gasket N/A
18-2825GLM
  • 31080
Mallory
  • 9-60030
Mercury Marine
  • 27-32771
1Water Pump Base Gasket N/A
18-2838GLM
  • 31600
Mercury Marine
  • 27-55279
  • 27-552791
1Transfer Port Cover Gasket N/A
18-2841GLM
  • 31190
Mallory
  • 9-60033
Mercury Marine
  • 27-19552
  • 27-77417
1Water Pump Base Gasket N/A
18-4261GLM
  • 31330
Mallory
  • 9-78002
Mercury Marine
  • 12-20262
  • 19643
Mercury Race Outboard
  • 12-20262
1Washer N/A
18-7115GLM
  • 82240
Johnson/Evinrude Outboard
  • 302588
Mercruiser Stern Drive
  • 25-20266
  • 25-26722
Mercury Marine
  • 25-20266
  • 25-26722
OMC Stern Drive
  • 302588
1O-Ring N/A
18-7143GLM
  • 81250
Johnson/Evinrude Outboard
  • 331188
Mallory
  • 9-76537
Mercruiser Stern Drive
  • 25-65936
  • 27-58025
  • 391-5081
Mercury Marine
  • 25-65936
OMC Stern Drive
  • 322501
  • 331188
Volvo Penta
  • 3852169
2O-Ring N/A
18-7145GLM
  • 81080
Johnson/Evinrude Outboard
  • 333572
Mallory
  • 9-76500
Mercruiser Stern Drive
  • 25-64068
Mercury Marine
  • 25-64068
OMC Stern Drive
  • 333572
3O-Ring N/A
18-7153GLM
  • 81180
Mallory
  • 9-76505
Mercruiser Stern Drive
  • 25-25439
Mercury Marine
  • 25-25439
Mercury Race Outboard
  • 25-25439
Mercury Race Sterndrive
  • 25-25439
OMC Stern Drive
  • 3852565
  • 911851
Volvo Penta
  • 3852565
  • 997368
1O-Ring N/A
18-7155Chrysler/Force/US Marine
  • 25-26855
GLM
  • 82230
Johnson/Evinrude Outboard
  • 305270
Mallory
  • 9-76541
Mercruiser Stern Drive
  • 25-26855
Mercury Marine
  • 25-26855
Yamaha Outboard
  • 93210-41MJ2-00
1O-Ring N/A
18-7160GLM
  • 83340
Mallory
  • 9-76545
Mercruiser Stern Drive
  • 25-31986
Mercury Marine
  • 25-31986
1O-Ring N/A
18-7167Chrysler/Force/US Marine
  • 785-97386
GLM
  • 82390
Johnson/Evinrude Outboard
  • 310414
Mallory
  • 9-76549
Mercruiser Stern Drive
  • 25-861844
  • 785-97386
Mercury Marine
  • 25-861844
  • 785-97386
OMC Stern Drive
  • 310414
1O-Ring N/A
18-7411GLM
  • 81240
Johnson/Evinrude Outboard
  • 321921
Mercruiser Stern Drive
  • 25-35480
  • 25-8M2000816
Mercury Marine
  • 25-35480
  • 25-47386
1O-Ring N/A
18-7413Chrysler/Force/US Marine
  • 25-62702
  • 25-F50342-1
  • F17510
  • F50342
GLM
  • 80110
Johnson/Evinrude Outboard
  • 303191
Mercruiser Stern Drive
  • 25-62702
  • 25-627021
Mercury Marine
  • 25-22175
  • 25-62702
Mercury Sport Jet
  • 25-62702
OMC Stern Drive
  • 303191
3O-Ring N/A
18-7414GLM
  • 80330
Mercury Marine
  • 25-62384
  • 25-64067
  • 25-823683
Mercury Sport Jet
  • 25-823683
1O-Ring N/A
18-7421GLM
  • 80070
Mercury Marine
  • 25-16524
  • 25-20415
1O-Ring N/A
18-7807GLM
  • 40320
Me cury Marine
  • 55278A1
1Fuel Pump Kit N/A
NSSMercury Marine
  • 25-62457
1O-RingNo ImageN/A
NSSMercury Marine
  • 35-59072
1Fuel Filter ScreenNo ImageN/A
NSSMercury Marine
  • 27-62396
1GasketNo ImageN/A
NSSMercury Marine
  • 27-62716
1GasketNo ImageN/A
Lower Unit Seal Kit
Your Price:
$55.99

Lower Unit Seal Kit

676-18-2663

Additional Details:

  • For: 100-245 Stringer Units (1968-1977)

Interchanges/Replaces

GLM

  • 87620

OMC Stern Drive

  • 981797

List of Containing Parts

Sierra Item # OE/Competitor # Quantity Description Image Comments
18-2012GLM
  • 85110
Johnson/Evinrude Outboard
  • 0310599
OMC Stern Drive
  • 308715
  • 310599
4Oil Seal N/A
18-2020GLM
  • 86040
Mallory
  • 9-76228
OMC Stern Drive
  • 310649
1Oil Seal N/A
18-2058GLM
  • 86050
Mallory
  • 9-76227
OMC Stern Drive
  • 313353
2Oil Seal N/A
18-2851Barr
  • OMC47313368
GLM
  • 33010
OMC Stern Drive
  • 313368
1Swivel Bearing Gasket N/A
18-4248Johnson/Evinrude Outboard
  • 311598
Mallory
  • 9-60408
OMC Stern Drive
  • 311598
  • 3852105
Volvo Penta
  • 3852105
2Drain/Fill Plug Washer N/A
18-7120Chrysler/Force/US Marine
  • 25-25007
  • 25-38933
  • 25-F498618
  • 26-817469
  • 27-843672
  • F498619
GLM
  • 80090
Johnson/Evinrude Outboard
  • 307853
Mallory
  • 9-76526
Mercury Marine
  • 25-38933
Mercury Sport Jet
  • 25-38933
OMC Stern Drive
  • 307853
  • 332598
4O-Ring N/A
18-7129GLM
  • 80220
Johnson/Evinrude Outboard
  • 314491
OMC Stern Drive
  • 314491
1O-Ring N/A
18-7135Chrysler/Force/US Marine
  • 25-35276
GLM
  • 82100
Johnson/Evinrude Outboard
  • 310584
Mallory
  • 9-76530
Mercruiser Stern Drive
  • 25-35276
Mercury Marine
  • 25-20365
  • 25-35276
OMC Stern Drive
  • 310584
  • 3852089
Volvo Penta
  • 3852089
1O-Ring N/A
18-7167Chrysler/Force/US Marine
  • 785-97386
GLM
  • 82390
Johnson/Evinrude Outboard
  • 310414
Mallory
  • 9-76549
Mercruiser Stern Drive
  • 25-861844
  • 785-97386
Mercury Marine
  • 25-861844
  • 785-97386
OMC Stern Drive
  • 310414
1O-Ring N/A
NSSOMC Stern Drive
  • 909019
1Grommet, Water TubeNo ImageN/A
NSSOMC Stern Drive
  • 908594
1Grommet, Water TubeNo ImageN/A
NSSOMC Stern Drive
  • 310597
1Grommet, Water TubeNo ImageN/A
2 Results (Viewing 1 - 2 of 2)