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Items Per Page:
4 Results (Viewing 1 - 4 of 4)
O-Ring
Your Price:
$1.99

O-Ring

676-18-7421

Key Features:

  • Package of 5

Additional Details:

  • I.D.: 0.150" or 3.8mm
  • Width: 0.065" or 1.7mm

Interchanges/Replaces

GLM

  • 80070

Mercury Marine

  • 25-16524
  • 25-20415
Powerhead Gasket Set
Your Price:
$141.99

Powerhead Gasket Set

676-18-4319

Interchanges/Replaces

GLM

  • 39250

Mallory

  • 9-64201
  • 9-64212

Mercury Marine

  • 27-11338A85
  • 27-11338A88
  • 27-89221A32
  • 27-89221A84
  • 27-89221A85
  • 27-89221A88

List of Containing Parts

Sierra Item # OE/Competitor # Quantity Description Image Comments
18-0129GLM
  • 30670
Mallory
  • 9-60062
Mercury Marine
  • 27-65744
  • 27-657441
  • 27-657442
  • 27-657443
6Reed Block Gasket N/A
18-0135GLM
  • 32880
Mercury Marine
  • 27-78246
  • 27-782461
1Adapter Cover Gasket N/A
18-0182GLM
  • 30610
Johnson/Evinrude Outboard
  • 310058
Mallory
  • 9-60002
Mercury Marine
  • 27-62386
  • 27-62386001
Mercury Race Outboard
  • 27-62386001
2Thermostat Gasket N/A
18-0359GLM
  • 30740
Mercury Marine
  • 27-67275
  • 27-672751
1Induction Silencer Cover Gasket N/A
18-0384GLM
  • 32350
Mercury Marine
  • 27-817533
  • 27-89221
  • 27-892211
  • 27-8M0027781
3Carburetor Gasket N/A
18-0858GLM
  • 81430
Mallory
  • 9-76516
Mercruiser Stern Drive
  • 25-54029
Mercury Marine
  • 25-54029
Mercury Sport Jet
  • 25-54029
1O-Ring N/A
18-0860GLM
  • 81520
Mercruiser Stern Drive
  • 25-62700
Mercury Marine
  • 25-62700
Mercury Sport Jet
  • 25-62700
1O-Ring N/A
18-0936GLM
  • 31990
Mallory
  • 9-60057
Mercury Marine
  • 27-67624
  • 27-78690
  • 27-78690002
Mercury Sport Jet
  • 27-78690
  • 27-78690002
2Relief Valve Plate Gasket N/A
18-0952GLM
  • 32330
Mercruiser Stern Drive
  • 27-88907003
Mercury Marine
  • 27-88907
  • 27-88907003
Mercury Sport Jet
  • 27-88907
2Relief Valve Plate Gasket N/A
18-2501GLM
  • 31680
Mallory
  • 9-60060
Mercury Marine
  • 27-67738
  • 27-93536
  • 27-935361
1Reed Block Housing Gasket N/A
18-2502GLM
  • 32150
Mercury Marine
  • 27-87396
  • 27-90484
  • 27-904841
Mercury Race Outboard
  • 27-90484
  • 27-904841
2Divider Plate Gasket N/A
18-2503GLM
  • 32530
Mercury Marine
  • 27-78068
  • 27-99177
  • 27-991771
  • 27-991772
1Drive Shaft Housing to Exhaust Plate Gasket N/A
18-2509GLM
  • 31690
Mercury Marine
  • 27-67751
3Carburetor Mounting Gasket N/A
18-2510GLM
  • 32450
Mercury Marine
  • 27-96761
  • 27-967611
1Reed Block Housing Gasket N/A
18-2511GLM
  • 32510
Mercury Marine
  • 27-67074
  • 27-88727
  • 27-99173
  • 27-99173 2
  • 27-991731
  • 27-991734
1Drive Shaft Housing to Exhaust Plate Gasket N/A
18-2513GLM
  • 30890
Mallory
  • 9-60049
  • 9-60050
Mercury Marine
  • 27-11338
  • 27-67208
Mercury Sport Jet
  • 27-11338
2Crankcase Gasket (Cyl. Block Sealing V-6) N/A
18-2803GLM
  • 32120
Mercury Marine
  • 27-90430
  • 27-904301
3Carburetor Mounting Gasket N/A
18-2808GLM
  • 32440
Mercury Marine
  • 27-96278
Mercury Race Outboard
  • 27-96278
2Cylinder Cover Gasket N/A
18-2826GLM
  • 31040
Mallory
  • 9-60036
Mercruiser Stern Drive
  • 27-33146
  • 27-856704
Mercury Marine
  • 27-33146
  • 27-85610
  • 27-856101
1Water Pump Base Gasket N/A
18-2914GLM
  • 31010
Mallory
  • 9-60034
Mercruiser Stern Drive
  • 27-32433
  • 27-856081
  • 27-8M0090319
Mercury Marine
  • 27-30603
  • 27-32433
  • 27-85608
  • 27-856081
  • 27-8M0090319
1Water Pump Gasket N/A
18-2915GLM
  • 31020
Mallory
  • 9-60035
Mercruiser Stern Drive
  • 27-32434
  • 27-856091
  • 27-858524
Mercury Marine
  • 27-30604
  • 27-32434
  • 27-85609
  • 27-856091
  • 27-858524
1Water Pump Gasket N/A
18-2919GLM
  • 31050
Mallory
  • 9-60031
Mercruiser Stern Drive
  • 27-426311
Mercury Marine
  • 27-42631
  • 27-426311
1Water Pump Gasket N/A
18-3110GLM
  • 12830
Mallory
  • 9-43604
Mercruiser Stern Drive
  • 26-38970
Mercury Marine
  • 26-29677
  • 26-36557A1
  • 26-38970
2Water Pump Housing Bushing N/A
18-3862GLM
  • 35860
Mallory
  • 9-63853
Mercury Marine
  • 27-41246
  • 27-41246-1
  • 27-412462
  • 27-41247
  • 27-41247T01
  • 27-96543
2Head Gasket 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
18-7157GLM
  • 83410
Mallory
  • 9-76542
Mercruiser Stern Drive
  • 25-29976
Mercury Marine
  • 25-29976
1O-Ring N/A
18-7159GLM
  • 83440
Mallory
  • 9-76544
Mercr iser Stern Drive
  • 25-31534
  • 25-48451
Mercury Marine
  • 25-31534
1O-Ring N/A
18-7162Chrysler/Force/US Marine
  • 25-33145
GLM
  • 82260
Johnson/Evinrude Outboard
  • 302337
Mallory
  • 9-76547
Mercruiser Stern Drive
  • 25-32424
  • 25-33145
Mercury Marine
  • 25-33145
Mercury Sport Jet
  • 25-33145
OMC Stern Drive
  • 302337
  • 302377
  • 3852044
Sears
  • 25-33145
Volvo Penta
  • 3852044
1O-Ring N/A
18-7164GLM
  • 81260
Johnson/Evinrude Outboard
  • 302537
Mercruiser Stern Drive
  • 25-33466
  • 25-67675
  • 25-846356
  • 27-898101789
Mercury Marine
  • 25-33466
  • 25-67675
  • 25-846356
1O-Ring N/A
18-7168GLM
  • 80120
Johnson/Evinrude Outboard
  • 202893
Mallory
  • 9-76550
Mercruiser Stern Drive
  • 25-21720
  • 25-26834
  • 25-48171
  • 25-801334436
Mercury Marine
  • 25-20587
  • 25-21720
  • 25-26834
  • 25-48171
  • 25-801334436
OMC Stern Drive
  • 202893
  • 3852033
Volvo Penta
  • 3852033
4O-Ring N/A
18-7174Chrysler/Force/US Marine
  • 25-45711
  • 25-F455342
GLM
  • 81140
Johnson/Evinrude Outboard
  • 326649
  • 553127
Mallory
  • 9-76553
Mercruiser Stern Drive
  • 25-45711
Mercury Marine
  • 25-45711
Mercury Sport Jet
  • 25-45711
OMC Stern Drive
  • 326649
  • 553127
  • 910582
2O-Ring N/A
18-7176Chrysler/Force/US Marine
  • 25-90011
  • 25-F74305
  • F694555
  • F74035
  • F74305-1
GLM
  • 81390
Mallory
  • 9-76554
Mercruiser Stern Drive
  • 25-896523
  • 25-90011
Mercury Marine
  • 25-896523
  • 25-90011
1O-Ring N/A
18-7406GLM
  • 80100
OMC Stern Drive
  • 3852523
  • 911311
Volvo Penta
  • 3852523
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
18-7421GLM
  • 80070
Mercury Marine
  • 25-16524
  • 25-20415
2O-Ring N/A
18-7812GLM
  • 40360
Mallory
  • 9-37751
Mercury Marine
  • 66599A2
  • 89031A2
1Fuel Pump Kit N/A
18-2506-1Mallory
  • 9-60046
Mercury Marine
  • 27-99176
  • 27-991762
  • 27-991763
  • 27-991764
Mercury Race Outboard
  • 27-99176
1Exhaust Plate Gasket N/A
18-2508-1GLM
  • 32540
Mercury Marine
  • 27-96440
  • 27-99776
  • 27-997761
2Exhaust Plate Gasket N/A
9-76560Mercury Marine
  • 25-38099
1O-RING N/A
18-7817Chrysler/Force/US Marine
  • 21-42990A10
  • 21-42990A7
  • 21-42990A8
GLM
  • 40290
Mercury Marine
  • 21-42990A1
  • 21-42990A10
  • 21-42990A11
  • 21-42990A2
  • 21-42990A3
  • 21-42990A4
  • 21-42990A5
  • 21-42990A6
  • 21-42990A7
  • 21-42990A8
  • 21-42990A9
  • 21-857005A1
Mercury Sport Jet
  • 21-42990A11
  • 21-857005A1
1Fuel Pump Kit N/A
NSSMercury Marine
  • 27-672741
1Gasket, Choke Plate to CarburetorNo ImageN/A
Powerhead Gasket Set
Your Price:
$75.99

Powerhead Gasket Set

676-18-4353

Key Features:

  • Does not include head gaskets

Interchanges/Replaces

GLM

  • 39190

Mercury Marine

  • 27-46110A1
  • 27-46110A2
  • 27-46110A72
  • 27-72486A32
  • 27-72486A76
  • 27-72486A78
  • 27-72486A79

List of Containing Parts

Sierra Item # OE/Competitor # Quantity Description Image Comments
18-0103GLM
  • 30990
Mercury Marine
  • 27-37725
  • 27-72496
  • 27-79650
  • 27-796501
2Powerhead Base Gasket N/A
18-0137GLM
  • 31790
Mercury Marine
  • 27-46111
  • 27-72488
  • 27-85492
  • 27-85492-2
  • 27-854921
  • 27-854924
1Baffle Plate Gasket N/A
18-0870GLM
  • 30060
Mallory
  • 9-60063
Mercury Marine
  • 27-27936
  • 27-279361
2Transfer Port Cover Gasket N/A
18-0879GLM
  • 31400
Mallory
  • 9-60042
Mercury Marine
  • 27-37724
  • 27-38501
  • 27-385011
1Adapter Plate Gasket N/A
18-0938GLM
  • 31000
Mercury Marine
  • 27-797971
1Water Inlet Gasket N/A
18-0942GLM
  • 31780
Mercury Marine
  • 27-46110
  • 27-72486
  • 27-85491
  • 27-85491-2
  • 27-854911
  • 27-854913
1Baffle Plate Gasket N/A
18-2507GLM
  • 31890
Mercury Marine
  • 27-37816
  • 27-72487
  • 27-78026
  • 27-85487
1Cylinder Block Cover Gasket N/A
18-2571GLM
  • 31300
Mercury Marine
  • 27-31402
2Carburetor Flange Gasket N/A
18-2800GLM
  • 31860
Mercury Marine
  • 27-26891
  • 27-64659
  • 27-75791
  • 27-757911
2Carburetor Mounting Gasket N/A
18-2810GLM
  • 30260
Mercury Marine
  • 27-43777
  • 27-437771
  • 27-437772
  • 27-96483
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
18-2841GLM
  • 31190
Mallory
  • 9-60033
Mercury Marine
  • 27-19552
  • 27-77417
1Water Pump Base Gasket 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
18-7151GLM
  • 82340
Mallory
  • 9-76540
Mercruiser Stern Drive
  • 25-20081
  • 25-39572
Mercury Marine
  • 25-20081
  • 25-39572
2O-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
18-7413Chrysler/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
2O-Ring N/A
18-7421GLM
  • 80070
Mercury Marine
  • 25-16524
  • 25-20415
1O-Ring N/A
18-7804GLM
  • 40310
Mercury Marine
  • 23014A1
1Fuel Pump Kit N/A
18-7174Chrysler/Force/US Marine
  • 25-45711
  • 25-F455342
GLM
  • 81140
Johnson/Evinrude Outboard
  • 326649
  • 553127
Mallory
  • 9-76553
Mercruiser Stern Drive
  • 25-45711
Mercury Marine
  • 25-45711
Mercury Sport Jet
  • 25-45711
OMC Stern Drive
  • 326649
  • 553127
  • 910582
1O-Ring N/A
NSSMercury Marine
  • 27-29166
1Gasket, Magneto CoverNo ImageN/A
NSSMercury Marine
  • 27-45910
1Gasket, Adapter to Primary HousingNo ImageN/A
NSSMercury Marine
  • 27-46351
1Gasket, Adapter to Primary HousingNo ImageN/A
NSSMercury Marine
  • 27-36268
1Gasket, Distributor Cap to AdaptorNo ImageN/A
NSSMercury Marine
  • 27-47189
1Gasket, Ignition Driver CoverNo ImageN/A
NSSMercury Marine
  • 27-47190
1Gasket, Ignition Driver CapNo ImageN/A
NSSMercury Marine
  • 27-25725
1Gasket, End Cap CoverNo ImageN/A
NSSMercury Marine
  • 37641
  • 37641001
1SealNo ImageN/A
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
4 Results (Viewing 1 - 4 of 4)
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