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Sierra / Mallory

Upper Unit Seal Kit
Your Price:
$35.99

Upper Unit Seal Kit

676-18-2644

Additional Details:

  • For: Alpha I Gen II

Interchanges/Replaces

GLM

  • 87501

Mallory

  • 9-74302

Mercruiser Stern Drive

  • 26-88397A1

List of Containing Parts

Sierra Item # OE/Competitor # Quantity Description Image Comments
18-2003GLM
  • 85030
Mallory
  • 9-76102
Mercruiser Stern Drive
  • 26-32080
  • 26-36054
  • 26-68493
  • 26-823894
  • 26-823894B
1Oil Seal N/A
18-2056Chrysler/Force/US Marine
  • 26-66302
GLM
  • 85060
Mallory
  • 9-76130
Mercruiser Stern Drive
  • 26-37259
  • 26-89237
  • 26-96503
  • 26-965031
Mercury Marine
  • 26-56394
  • 26-66302
2Oil Seal N/A
18-2715GLM
  • 12930
Mallory
  • 9-78005
Mercruiser Stern Drive
  • 24-17997A1
1Check Valve Kit N/A
18-2944GLM
  • 85140
Mallory
  • 9-76512
Mercruiser Stern Drive
  • 26-45577
  • 26-455771
  • 26-45577B
  • 26-45577B1
1Seal Ring Gasket N/A
18-2945Chrysler/Force/US Marine
  • 12-19183
  • F50556
  • F8077
  • F8186
Johnson/Evinrude Outboard
  • 307552
Mallory
  • 9-60101
  • 9-60102
Mercruiser Stern Drive
  • 12-19183
  • 12-191832
  • 12-191833
  • 12-19183B
  • 12-20260
  • 12-20260B
Mercury Marine
  • 12-19183
  • 12-191832
  • 12-191833
  • 12-20260
1Drain Screw Gasket N/A
18-3289Mercruiser Stern Drive
  • 26-864319
1Double Lip Seal N/A
18-7117GLM
  • 82150
Johnson/Evinrude Outboard
  • 303360
Mallory
  • 9-76507
Mercruiser Stern Drive
  • 25-35027
Mercury Marine
  • 25-35027
1O-Ring N/A
18-7161GLM
  • 80420
Mallory
  • 9-76546
Mercruiser Stern Drive
  • 25-32546
Mercury Marine
  • 25-32546
1O-Ring N/A
18-7169Chrysler/Force/US Marine
  • 25-F24278
GLM
  • 82380
Mallory
  • 9-76551
Mercruiser Stern Drive
  • 25-35984
  • 25-70937
OMC Stern Drive
  • 911686
1O-Ring N/A
18-7420GLM
  • 82110
Mallory
  • 9-76565
Mercruiser Stern Drive
  • 25-21836
Mercury Marine
  • 25-21836
Mercury Race Outboard
  • 25-21836
Mercury Race Sterndrive
  • 25-21836
Mercury Sport Jet
  • 25-21836
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
2O-Ring
18-2430Mallory
  • 9-60105
Mercruiser Stern Drive
  • 26-830749
Mercury Marine
  • 26-830749
1Drain Screw Gasket N/A
NSSMercruiser Stern Drive
  • 26-88397
1SealNo ImageN/A
Upper Unit Seal Kit
Your Price:
$24.99

Upper Unit Seal Kit

676-18-2648

Additional Details:

  • For: #1 Units (including Alpha)(Also fits 888 stern drive)

Interchanges/Replaces

GLM

  • 87500

Mallory

  • 9-74303

Mercruiser Stern Drive

  • 26-32511A1
  • 26-32511B1

List of Containing Parts

Sierra Item # OE/Competitor # Quantity Description Image Comments
18-0894GLM
  • 31150
Mallory
  • 9-60037
Mercruiser Stern Drive
  • 27-55810
  • 27-558101
1Water Pocket Cover Gasket N/A
18-2003GLM
  • 85030
Mallory
  • 9-76102
Mercruiser Stern Drive
  • 26-32080
  • 26-36054
  • 26-68493
  • 26-823894
  • 26-823894B
1Oil Seal N/A
18-2049GLM
  • 85020
Mallory
  • 9-76111
Mercruiser Stern Drive
  • 26-32511
1Oil Seal N/A
18-2056Chrysler/Force/US Marine
  • 26-66302
GLM
  • 85060
Mallory
  • 9-76130
Mercruiser Stern Drive
  • 26-37259
  • 26-89237
  • 26-96503
  • 26-965031
Mercury Marine
  • 26-56394
  • 26-66302
1Oil Seal N/A
18-2944GLM
  • 85140
Mallory
  • 9-76512
Mercruiser Stern Drive
  • 26-45577
  • 26-455771
  • 26-45577B
  • 26-45577B1
1Seal Ring Gasket N/A
18-2945Chrysler/Force/US Marine
  • 12-19183
  • F50556
  • F8077
  • F8186
Johnson/Evinrude Outboard
  • 307552
Mallory
  • 9-60101
  • 9-60102
Mercruiser Stern Drive
  • 12-19183
  • 12-191832
  • 12-191833
  • 12-19183B
  • 12-20260
  • 12-20260B
Mercury Marine
  • 12-19183
  • 12-191832
  • 12-191833
  • 12-20260
2Drain Screw Gasket N/A
18-3110GLM
  • 12830
Mallory
  • 9-43604
Mercruiser Stern Drive
  • 26-38970
Mercury Marine
  • 26-29677
  • 26-36557A1
  • 26-38970
1Water 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
2O-Ring N/A
18-7161GLM
  • 80420
Mallory
  • 9-76546
Mercruiser Stern Drive
  • 25-32546
Mercury Marine
  • 25-32546
1O-Ring N/A
18-7169Chrysler/Force/US Marine
  • 25-F24278
GLM
  • 82380
Mallory
  • 9-76551
Mercruiser Stern Drive
  • 25-35984
  • 25-70937
OMC Stern Drive
  • 911686
1O-Ring N/A
18-7445GLM
  • 80190
Mallory
  • 9-76568
Mercruiser Stern Drive
  • 25-55801
1O-Ring N/A
18-0521GLM
  • 85150
Mercruiser Stern Drive
  • 26-36557
Mercury Marine
  • 26-36557
1Water Tube Rubber Seal N/A
Upper Water Pump Gasket (Priced Per Pkg of 2)
Your Price:
$2.99

Upper Water Pump Gasket (Priced Per Pkg of 2)

676-18-2824-9

Interchanges/Replaces

GLM

  • 31070

Mallory

  • 9-60029

Mercury Marine

  • 27-19551
  • 27-32770
Upper Water Pump Seal
Your Price:
$4.99

Upper Water Pump Seal

676-18-3013

Additional Details:

  • For: 4-Stroke O/B's 25/30/40/45/50 Hp SN: 0G760300 & Up

Interchanges/Replaces

Chrysler/Force/US Marine

  • 26-821309

Mercury Marine

  • 26-821309
V-8 Delco Est Conversion Kit
Your Price:
$619.99

V-8 Delco Est Conversion Kit

676-18-5514

Key Features:

  • Converts 8 cyl GM Engines to electronic

List of Containing Parts

Sierra Item # OE/Competitor # Quantity Description Image Comments
18-5443Crusader
  • 7243200
GLM
  • 72113
Indmar
  • 556132
Mallory
  • 9-29708
Mercruiser Stern Drive
  • 817378
  • 817378T
  • 898253T27
OMC Stern Drive
  • 3854002
  • 986644
Volvo Penta
  • 3854002
1Ignition Coil N/A
18-55151Delco EST Distributor Coil to Module Harness N/A
18-55161DELCO EST DISTRIBUTOR TIMING TOOL N/A
18-55171DELCO EST SHIFT INTERRUPT HARNESS N/A
18-5484-1Mallory
  • 9-26700
  • YLE624AV
Mercruiser Stern Drive
  • 805222A1
OMC Stern Drive
  • 3850399
  • 3857400
Volvo Penta
  • 3857400
  • 3857449
1Delco HEI Distributor (GM V8) N/A
18-8832-1CDI
  • 631-0006
Mallory
  • 9-28011
Mercruiser Stern Drive
  • 84-816608A68
  • 84-816608Q68
1Spark Plug Wire Set N/A
18-26812Indmar
  • 801010
Mallory
  • 9-26812
1HEI Coil Connector GRAY N/A
Valve Cover Gasket
Your Price:
$23.99

Valve Cover Gasket

676-18-2845

Key Features:

  • For: GM 305/350 CID (5.0L & 5.7L)

Interchanges/Replaces

Chris-Craft

  • 16.11-01236

Crusader

  • 91351

GLM

  • 30353

Mallory

  • 9-61300

Mercruiser Stern Drive

  • 27-11999
  • 27-34043
  • 27-52202
  • FI1101236
  • FI5000161

OMC Stern Drive

  • 912965
Valve Cover Gasket
Your Price:
$25.99

Valve Cover Gasket

676-18-0664

Key Features:

  • For: GM 305/350, 5.0 & 5.7L

Interchanges/Replaces

GLM

  • 30357

Mallory

  • 9-61305

Mercruiser Stern Drive

  • 27-17467
  • FI1101287

OMC Stern Drive

  • 3852687
  • 913270

Volvo Penta

  • 3852687
  • 856072
Valve Cover Gasket
Your Price:
$20.99

Valve Cover Gasket

676-18-0609

Additional Details:

  • For:: 318/340/360 CID

Interchanges/Replaces

Chrysler Inboard

  • 4273129

Mallory

  • 9-61308
Valve Cover Gasket
Your Price:
$17.99

Valve Cover Gasket

676-18-0311

Additional Details:

  • For: MCM 175, 185, 205 & 4.3L/LX with metal rocker covers (1985-1995)

Interchanges/Replaces

Crusader

  • 97686

GLM

  • 30359

Mallory

  • 9-61316

Mercruiser Stern Drive

  • 27-11988
  • 27-8M0077607

OMC Stern Drive

  • 3854942

Volvo Penta

  • 3854942
Valve Cover Gasket
Your Price:
$14.99

Valve Cover Gasket

676-18-0347

Key Features:

  • For: GM 153 & 181 CID (2.5L & 3.0L)

Interchanges/Replaces

GLM

  • 32210

Mallory

  • 9-61317

Mercruiser Stern Drive

  • 27-34041
  • 27-52145
  • 27-806452
  • 27-851040

OMC Stern Drive

  • 3852693
  • 912981
  • 913277

Volvo Penta

  • 3852693
Valve Cover Gasket
Your Price:
$27.99

Valve Cover Gasket

676-18-0685

Additional Details:

  • Fits: MCM 3.7L engines (1976-1989)

Interchanges/Replaces

GLM

  • 31820

Mallory

  • 9-61313

Mercruiser Stern Drive

  • 27-73666
Valve Cover Gasket
Your Price:
$71.99

Valve Cover Gasket

676-18-2927

Interchanges/Replaces

Volvo Penta

  • 1378909
  • 463999
Valve Cover Gasket (Priced Per Pkg of 2)
Your Price:
$28.99

Valve Cover Gasket (Priced Per Pkg of 2)

676-18-0464-9

Key Features:

  • For: MCM GM V-8 (427, 454, 482, 502 & 540 cid) engines (1974-1986)

Interchanges/Replaces

GLM

  • 30350

Mallory

  • 9-61302

Mercruiser Stern Drive

  • 27-49121
  • 27-91831

OMC Stern Drive

  • 912768
Valve Seat Gasket
Your Price:
$0.99

Valve Seat Gasket

676-18-0242

Interchanges/Replaces

Yamaha Outboard

  • 663-13622-00-00
  • 663-13622-A0-00
Valve Stem Seal
Your Price:
$3.99

Valve Stem Seal

676-18-0518

Key Features:

  • For: Most inline 4 & 6 cyl. GM (early) & 305-350 CID GM

Additional Details:

  • O.D.: 0.394"
  • Shaft Size: 0.282"
  • Width: 0.083"

Interchanges/Replaces

Mercruiser Stern Drive

  • 26-34217
  • FI1100152

OMC Stern Drive

  • 3853132
  • 3854956
  • 914323

Volvo Penta

  • 3853132
  • 3854956
  • 914323
Valve Stem Seal
Your Price:
$2.99

Valve Stem Seal

676-18-4024

Key Features:

  • For: Chevy 4.3L/5.0L/5.7L

Interchanges/Replaces

Mallory

  • 9-61650
  • 9-61653

Mercruiser Stern Drive

  • 26-8M0050563
  • 26-97664
  • 26-976641
  • FI1101200

OMC Stern Drive

  • 3853226
  • 914445

Volvo Penta

  • 3853226
  • 914445
Valve Stem Seal
Your Price:
$1.99

Valve Stem Seal

676-18-4031

Interchanges/Replaces

Volvo Penta

  • 1306630
  • 419702
  • 833347
Valve Stem Seal
Your Price:
$1.99

Valve Stem Seal

676-18-4022

Additional Details:

  • For: 330 (s/n 4623115 & later), 340 (IB) (s/n 5889914 & later), 454 Mag (s/n A631894 & later)

Interchanges/Replaces

Mallory

  • 9-61652

Mercruiser Stern Drive

  • 26-49131
  • 26-67863
  • 26-75982
  • 26-75988
  • F3866612
  • FI1100968
  • FI1101117
Valve Stem Seal (Priced Per Pkg of 8)
Your Price:
$20.99

Valve Stem Seal (Priced Per Pkg of 8)

676-18-4024-9

Key Features:

  • For: Chevy 4.3L/5.0L/5.7L

Interchanges/Replaces

Mallory

  • 9-61650
  • 9-61653

Mercruiser Stern Drive

  • 26-8M0050563
  • 26-97664
  • 26-976641
  • FI1101200

OMC Stern Drive

  • 3853226
  • 914445

Volvo Penta

  • 3853226
  • 914445
V-Belt
Your Price:
$26.99

V-Belt

676-18-15440

Key Features:

  • High strength synthetic cords resist shockload
  • Their low stretch properties assure uniform performance over the life of the belt
  • Special rubber compound section assures smooth and even transfer of load forces to the cords
  • Cogs are molded to precise engineering tolerances to improve flexibility and maintain cord support
  • Provides a large area for air circulation keeping the belt cool while preventing heat build up
  • Rubber edges maintain positive, no-slip contact with pulley grooves for reliable energy transfer

Additional Details:

  • Effective Length: 44" or 111.8cm
  • Top Width: 29/64" or 11.5mm

Interchanges/Replaces

Mallory

  • 9-55006

Mercruiser Stern Drive

  • 57-45856
  • 57-49213
  • 57-49213A1
  • 57-93658
  • 57-93658Q

OMC Inboard

  • 311046

OMC Stern Drive

  • 311046
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