Sierra / Mallory

Powerhead Gasket Set
Your Price:
$106.99

Powerhead Gasket Set

676-18-4301

Interchanges/Replaces

GLM

  • 39360

Johnson/Evinrude Outboard

  • 388602

Mallory

  • 9-64117

List of Containing Parts

Sierra Item # OE/Competitor # Quantity Description Image Comments
18-0117GLM
  • 34300
Johnson/Evinrude Outboard
  • 317955
Mallory
  • 9-60435
1Exhaust Plate Gasket N/A
18-0134GLM
  • 34540
Johnson/Evinrude Outboard
  • 327707
Mallory
  • 9-60428
2Carburetor to Manifold Gasket N/A
18-0953GLM
  • 34870
Johnson/Evinrude Outboard
  • 317951
1Water Passage Gasket N/A
18-0955GLM
  • 33510
Johnson/Evinrude Outboard
  • 318156
1Exhaust Cover Gasket N/A
18-0957GLM
  • 34880
Johnson/Evinrude Outboard
  • 318373
1Powerhead Base Gasket N/A
18-0991GLM
  • 33660
Johnson/Evinrude Outboard
  • 321907
4Leaf Plate Gasket N/A
18-2857GLM
  • 33750
Johnson/Evinrude Outboard
  • 319771
  • 386573
Mallory
  • 9-60463
2Air Silencer Gasket N/A
18-2864GLM
  • 33640
Johnson/Evinrude Outboard
  • 321727
  • 342513
Mallory
  • 9-60413
1Powerhead Base Gasket N/A
18-2866GLM
  • 34290
Johnson/Evinrude Outboard
  • 317914
Mallory
  • 9-60434
2Exhaust Cover Gasket N/A
18-2867GLM
  • 33180
Johnson/Evinrude Outboard
  • 319174
Mallory
  • 9-60438
1Manifold to Crankcase Gasket N/A
18-2873GLM
  • 33530
Johnson/Evinrude Outboard
  • 318335
Mallory
  • 9-60454
2Water Jacket Gasket N/A
18-2876GLM
  • 33280
Johnson/Evinrude Outboard
  • 307133
Mallory
  • 9-60426
OMC Stern Drive
  • 307133
4Bypass Cover Gasket N/A

Powerhead Gasket Set
Your Price:
$190.99

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

Premium Blend Lube 55 Gallons
Your Price:
$1,640.99

Premium Blend Lube 55 Gallons

676-18-9600-7

Gear Lube, Premium Blend – 55 Gallons / 208L (1 Each).
Replaces: Mercury 858061K01, 858061QC1, 92-802849A1, 92-858061QB1, 92-883663A1.

Mallory Premium Gear Lubricant
Special marine additive package provides superior lubricity and corrosion protectcion to protect gears and bearings under the demanding conditions of the extreme marine environment.

  • Exceeds all OEM specifictaion
  • Excellent film strength protects gears and bearings in heavy load conditions
  • Recommended for all outboards & stern drive gearcases requiring a marine GL-5 lubricant (except OMC/Johnson/Evinrude electric shift models, for thes units use Mallory Marine “Type C” gear lubricant)
  • Will not void engine manufacturers warranty!

Replaces: Mercury Premium Blend, Johnson/Evinrude Hi-Vis Lubricant, Honda, Suzuki, Nissan/Tohatsu, Yamaha – Yamalube LUB-GEARL-11-04. Mallory Marine is so confident in our ability to increase performance and extend engine life thru its anti-wear additives that when a case of Mallory Marine FC-W 4-Stroke Lubricant and an appropriate Malllory Marine Oil Filter is purchased and used exclusively with a new 4-cycle outboard, sterndrive or inboard engine, Mallory Marine will warrant against a lubricant failure for Double he engine manufacturers warranty period on critical internal engine parts parts for a maximum of six years. Not only is your engine protected from wear, but you are protected from potential costly repairs caused from lubricant failure.


Premium Gear Lube - 10 oz
Your Price:
$7.99

Premium Gear Lube - 10 oz

676-18-9600-0

Key Features:

  • Recommended for all general marine applications requiring a GL-5 class lubricant.
  • Ideal for replacing all old hypoid 90 application needs.
  • Formulated for use in freshwater or saltwater conditions and all standard marine applications.
  • Reduces friction and protects gears, bearings and other gear case components.

Additional Details:

  • Color: Amber
  • Weight: 80W-90

Interchanges/Replaces

Mallory

  • 9-82400

Premium Gear Lube - 5 Gallon
Your Price:
$185.99

Premium Gear Lube - 5 Gallon

676-18-9600-5

Key Features:

  • Recommended for all general marine applications requiring a GL-5 class lubricant.
  • Ideal for replacing all old hypoid 90 application needs.
  • Formulated for use in freshwater or saltwater conditions and all standard marine applications.
  • Reduces friction and protects gears, bearings and other gear case components.

Additional Details:

  • Color: Amber
  • Weight: 80W-90

Use With:

Interchanges/Replaces

Mallory

  • 9-82402

Mercury Marine

  • 92-858007Q01

Premium Gear Lube - Qt
Your Price:
$11.99

Premium Gear Lube - Qt

676-18-9600-2

Key Features:

  • Recommended for all general marine applications requiring a GL-5 class lubricant.
  • Ideal for replacing all old hypoid 90 application needs.
  • Formulated for use in freshwater or saltwater conditions and all standard marine applications.
  • Reduces friction and protects gears, bearings and other gear case components.

Additional Details:

  • Color: Amber
  • Weight: 80W-90

Interchanges/Replaces

Mallory

  • 9-82401

Mercury Marine

  • 92-858058Q01

Primer,Engine Oil
Your Price:
$23.99

Primer,Engine Oil

676-18-95560

Key Features:

  • Fits: V6 and V8 GM applications

Interchanges/Replaces

Mallory

  • 9-56000

Prop Cone
Your Price:
$83.99

Prop Cone

676-18-4210

Key Features:

  • AQ200, 250, 270, 270T, 275, 280, 280T, 280PT, 290

Interchanges/Replaces

GLM

  • 23040

Volvo Penta

  • 850785
  • 854045

Prop Cone Screw
Your Price:
$14.99

Prop Cone Screw

676-18-4212

Additional Details:

  • Size: 5/16" or 7.9mm - 18

Interchanges/Replaces

GLM

  • 23240

Volvo Penta

  • 850889

Prop Nut
Your Price:
$11.99

Prop Nut

676-18-3707

Interchanges/Replaces

GLM

  • 22170

Johnson/Evinrude Outboard

  • 319891

Prop Nut
Your Price:
$4.99

Prop Nut

676-18-3773

Interchanges/Replaces

Mallory

  • 9-73906

Nissan/Tohatsu Outboard

  • 369-64121-0

Yamaha Outboard

  • 90171-10M01-00

Prop Nut
Your Price:
$12.99

Prop Nut

676-18-3732

Interchanges/Replaces

Mallory

  • 9-73908

Yamaha Outboard

  • 90171-16011-00
  • 95307-16900-00

Prop Nut
Your Price:
$7.99

Prop Nut

676-18-3726

Interchanges/Replaces

GLM

  • 21241

Mallory

  • 9-73909

Suzuki Outboard

  • 09141-18005

Yamaha Outboard

  • 90171-18M04-00

Prop Nut
Your Price:
$4.99

Prop Nut

676-18-3703

Key Features:

  • A special molded nylon propnut fitting the 18/20/25 Hp 2 cycle 1980 & newer
  • Also fitting the F9.9/15, 323cc Bigfoot 4-stroke

Interchanges/Replaces

Chrysler/Force/US Marine

  • 11-88228

GLM

  • 21242

Mallory

  • 9-73963

Mercury Marine

  • 11-88228

Sears

  • 11-88228

Prop Nut
Your Price:
$17.99

Prop Nut

676-18-3704

Interchanges/Replaces

GLM

  • 21240

Mallory

  • 9-73901

Mercury Marine

  • 11-69578
  • 11-69578A1
  • 11-69578A2
  • 11-69578Q1

Prop Nut
Your Price:
$10.99

Prop Nut

676-18-3709

Interchanges/Replaces

Yamaha Outboard

  • 647-45616-02-00

Prop Nut
Your Price:
$4.99

Prop Nut

676-18-3792

Interchanges/Replaces

Yamaha Outboard

  • 90171-14013-00
  • 90171-14056-00

Prop Nut
Your Price:
$38.99

Prop Nut

676-18-3783

Additional Details:

  • Fits:: Bravo III (front)

Interchanges/Replaces

Mercruiser Stern Drive

  • 11-805092
  • 11-805092T
  • 11-859131
  • 11-8M0105210

Prop Nut
Your Price:
$10.99

Prop Nut

676-18-3786

Additional Details:

  • Fits:: Bravo III (rear)

Interchanges/Replaces

Mercruiser Stern Drive

  • 11-805093
  • 11-862907

Prop Nut
Your Price:
$11.99

Prop Nut

676-18-3700

Additional Details:

  • Size: 3/4" - 20 thread
  • Wrench Size: 1 1/16"

Interchanges/Replaces

Chrysler/Force/US Marine

  • 11-52707A1
  • 11-F7000
  • F7040

GLM

  • 21230

Honda

  • 90301-ZW1-003

Mercruiser Stern Drive

  • 11-52707
  • 11-52707B
  • 11-827614
  • 11-827614B

Mercury Marine

  • 11-52707
  • 11-827614

Pleasurecraft

  • R017066