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Sierra / Mallory

Overhaul Gasket Set
Your Price:
$157.99

Overhaul Gasket Set

676-18-4359

Key Features:

  • Does not Include Head Gaskets

Interchanges/Replaces

GLM

  • 39520

Mallory

  • 9-64204

Mercury Marine

  • 27-815791A90
  • 27-815791A92
  • 27-815809A90
  • 27-815810A90

List of Containing Parts

Sierra Item # OE/Competitor # Quantity Description Image Comments
18-0135GLM
  • 32880
Mercury Marine
  • 27-78246
  • 27-782461
2Adapter 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
18-0384GLM
  • 32350
Mercury Marine
  • 27-817533
  • 27-89221
  • 27-892211
  • 27-8M0027781
3Carburetor Gasket N/A
18-0641GLM
  • 37590
Mercury Marine
  • 27-828292
Mercury Sport Jet
  • 27-828292
3Carburetor Mounting Gasket N/A
18-0642GLM
  • 37560
Mallory
  • 9-60051
Mercury Marine
  • 27-19050
  • 27-190502
  • 27-190503
  • 27-190505
1Divider Plate Gasket N/A
18-0643GLM
  • 37570
Mercury Marine
  • 27-183071
  • 27-183076
1Powerhead Base Gasket N/A
18-0644GLM
  • 37530
Mercury Marine
  • 27-146972
Mercury Sport Jet
  • 27-146972
1Reed Plate Gasket N/A
18-0645GLM
  • 37540
Mallory
  • 9-60056
Mercury Marine
  • 27-167371
Mercury Sport Jet
  • 27-167371
1Adapter Plate Gasket N/A
18-0646GLM
  • 37550
Mercury Marine
  • 27-813859
  • 27-883775
Mercury Sport Jet
  • 27-813859
  • 27-881034
1Reed Plate Gasket N/A
18-0838Yamaha Outboard
  • 93210-37M25-00
1O-Ring 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
18-2509GLM
  • 31690
Mercury Marine
  • 27-67751
3Carburetor Mounting 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
18-2914GLM
  • 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
18-7153GLM
  • 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
Mercruiser Stern Drive
  • 25-31534
  • 25-48451
Mercury Marine
  • 25-31534
1O-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
1O-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
18-8305Mercury Marine
  • 26-814754
  • 42838
  • 69668
  • 88726
Mercury Race Outboard
  • 428381
  • 69668
Mercury Sport Jet
  • 26-814754
1Divider Plate Seal 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
    18-0970Chrysler/Force/US Marine
    • 27-987691
    GLM
    • 32960
    Mallory
    • 9-60054
    Mercury Marine
    • 27-98769
    • 27-987691
    Mercury Sport Jet
    • 27-987691
    		1Fuel Pump Base Gasket 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
    Overhaul Kit
    Your Price:
    $420.99

    Overhaul Kit

    676-18-2591

    Key Features:

    • Service kit for Borg-Warner Velvet Drive 71 and 72 series transmission

    Additional Details:

    • Includes: Gaskets, Seals. Sealing Rings, Bronze and Steel Plates
    Oxygen Sensor
    Your Price:
    $105.99

    Oxygen Sensor

    676-18-32152

    Key Features:

    • 4-Wire
    • Used on ETXCAT Exhaust Manifolds for both pre and post catalyst locations
    • (Except Ford 6.2L engines, sensor is used post catalyst only)
    • 5.7L H.O., 5.7L 340 Assault 2007-UP

    Interchanges/Replaces

    Indmar

    • S556162
    Perf, Tilt & Trim Qt
    Your Price:
    $11.99

    Perf, Tilt & Trim Qt

    676-18-9751-2

    Sold by EA in Quantities of 12
    Pick Up Coil Sensor
    Your Price:
    $31.99

    Pick Up Coil Sensor

    676-18-5108

    Additional Details:

    • Fits: GM 4 Cyl., V-6 & V-8 Engines With Delco HEI Ignition

    Interchanges/Replaces

    CDI

    • E13-0012

    GLM

    • 72130

    Indmar

    • 556194

    Mercruiser Stern Drive

    • 802465
    • 811639
    • 811639T
    • 850489

    OMC Stern Drive

    • 3854001
    • 986642

    Volvo Penta

    • 3854001
    Pick-Up Assembly
    Your Price:
    $223.99

    Pick-Up Assembly

    676-18-7642

    Additional Details:

    • Fits: MCM 350 Mag MPI, MX 6.2L MPI & 377 Mag (s/n 0W310000 & Up)
    • Fits: MIE 350 Mag MPI, 5.7 MPI, MX 6.2L MPI & 377 MPI (s/n 0W390000 & Up)

    Interchanges/Replaces

    CDI

    • E13-0002

    Mallory

    • 9-29806

    Mercruiser Stern Drive

    • 898141

    Volvo Penta

    • 3863130
    Pincers, Oetiker Jaw
    Your Price:
    $70.99

    Pincers, Oetiker Jaw

    676-18-9141

    Interchanges/Replaces

    Johnson/Evinrude Outboard

    • 787145

    Mallory

    • 9-79824

    Oetiker

    • 14100082

    OMC Stern Drive

    • 787145

    Yamaha Outboard

    • YB-6AW04-4
    Pinion Bearing
    Your Price:
    $48.99

    Pinion Bearing

    676-18-1117

    Additional Details:

    • Fits: MR, Alpha One & Gen II

    Interchanges/Replaces

    Chrysler/Force/US Marine

    • 31-42647A1
    • 31-F694057

    GLM

    • 21610

    Johnson/Evinrude Outboard

    • 387817
    • 5007751

    Mallory

    • 9-75121

    Mercruiser Stern Drive

    • 31-42647
    • 31-42647A1

    Mercury Marine

    • 31-42647A1

    OMC Stern Drive

    • 387817
    Pinion Bearing Carrier
    Your Price:
    $139.99

    Pinion Bearing Carrier

    676-18-4828

    Interchanges/Replaces

    Johnson/Evinrude Outboard

    • 911750

    OMC Stern Drive

    • 911750
    Pinion Nut
    Your Price:
    $4.99

    Pinion Nut

    676-18-3719

    Key Features:

    • 5/8" (15.9mm) - 18 thread • 1 1/16" wrench

    Interchanges/Replaces

    Chrysler/Force/US Marine

    • 11-35921
    • 11-826375
    • 11-F694188

    GLM

    • 11190

    Johnson/Evinrude Outboard

    • 314730

    Mallory

    • 9-78103

    Mercruiser Stern Drive

    • 11-35921

    Mercury Marine

    • 11-35921
    • 11-47411
    • 11-826375

    OMC Stern Drive

    • 314730
    Pipe Plug
    Your Price:
    $2.99

    Pipe Plug

    676-18-4256

    Additional Details:

    • Thread Size: 1/4" or 6.4mm
    • Note: Pipe sealant with Teflon is recommended for use on plug threads

    Use With:

    • 56507: Loctite Pipe Sealant (PST 6ml w/ Teflon)

    Interchanges/Replaces

    Mallory

    • 9-40545
    Pipe Plug
    Your Price:
    $4.99

    Pipe Plug

    676-18-4264

    Additional Details:

    • Thread Size: 3/8" or 9.5mm - 18 NPT
    • Note: Pipe Sealant with Teflon is recommended for use on plug threads
    • Material: Brass

    Use With:

    • 56507: Loctite Pipe Sealant (PST 6ml w/ Teflon)

    Interchanges/Replaces

    GLM

    • 21894

    Mallory

    • 9-40546

    Mercruiser Stern Drive

    • 22-32803
    • 22-87543
    • FI5880010

    Mercury Marine

    • 22-32803
    Pipe Plug
    Your Price:
    $5.99

    Pipe Plug

    676-18-4258

    Additional Details:

    • Material: Stainless Steel with square drive
    • Thread Size: 3/4" or 19.1mm - 14 NPT
    • Note: Pipe sealant with Teflon is recommended for use on plug threads

    Use With:

    • 18-1949: Manifold Spacer
    • 18-1984: Manifold Spacer
    • 56507: Loctite Pipe Sealant (PST 6ml w/ Teflon)

    Interchanges/Replaces

    Crusader

    • 113186

    GLM

    • 21892

    Mallory

    • 9-41205

    Mercruiser Stern Drive

    • 22-33198
    • 22-33198A1
    • 22-41622
    • 22-46754

    Osco

    • 1016012
    Pipe Plug
    Your Price:
    $4.99

    Pipe Plug

    676-18-4263

    Additional Details:

    • Thread Size: 1/8" or 3.2mm - 27 NPT
    • Note: Pipe sealant with Teflon is recommended for use on plug threads
    • Material: Brass

    Use With:

    • 56507: Loctite Pipe Sealant (PST 6ml w/ Teflon)

    Interchanges/Replaces

    Chrysler/Force/US Marine

    • 22-328021
    • 22-328022
    • F700633
    • FI5810151

    GLM

    • 21893

    Mercruiser Stern Drive

    • 22-32802
    • 22-328021
    • 22-328022
    • 22-841908

    Mercury Marine

    • 22-30139
    • 22-32802
    • 22-328021
    • 22-328022
    Piston Rings
    Your Price:
    $53.99

    Piston Rings

    676-18-3918

    Additional Details:

    • BORE SIZE: 2.875/STD
    • For: 2 Ring Pistons

    Interchanges/Replaces

    GLM

    • 14210

    Mercury Marine

    • 39-817096A6

    Wiseco

    • 2875KD
    Piston Rings
    Your Price:
    $45.99

    Piston Rings

    676-18-3942

    Key Features:

    • All pistons are supplied complete with piston rings and wrist pin

    Additional Details:

    • Size: STD

    Interchanges/Replaces

    Mercruiser Stern Drive

    • 39-34479
    • 39-58096
    • 39-67119
    • 39-67132
    Piston Rings
    Your Price:
    $32.99

    Piston Rings

    676-18-3944

    Key Features:

    • All pistons are supplied complete with piston rings and wrist pin

    Additional Details:

    • Size: STD

    Interchanges/Replaces

    Mercruiser Stern Drive

    • 39-75609
    • FI1101057

    OMC Inboard

    • 370409

    OMC Stern Drive

    • 370409

    Volvo Penta

    • 370409
    Piston Rings
    Your Price:
    $11.99

    Piston Rings

    676-18-3947

    Key Features:

    • .02 O.S.

    Interchanges/Replaces

    Johnson/Evinrude Outboard

    • 439538
    Piston Rings
    Your Price:
    $5.99

    Piston Rings

    676-18-3977

    Interchanges/Replaces

    Mercury Marine

    • 39-18939M

    Yamaha Outboard

    • 682-11610-11-00
    Piston Rings
    Your Price:
    $32.99

    Piston Rings

    676-18-3975

    Additional Details:

    • Bore Size: 3.685

    Interchanges/Replaces

    GLM

    • 24250

    Johnson/Evinrude Outboard

    • 431870

    Mallory

    • 9-54432

    Wiseco

    • 3685KD