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Sierra / Mallory

Lower Unit Seal Kit
Your Price:
$37.99

Lower Unit Seal Kit

676-18-2671

Additional Details:

  • For: All 4 cyl. Cobra (1986-1989)

Interchanges/Replaces

GLM

  • 87655

Mallory

  • 9-74401

OMC Stern Drive

  • 984457
  • 985612

List of Containing Parts

Sierra Item # OE/Competitor # Quantity Description Image Comments
18-0166GLM
  • 86620
OMC Stern Drive
  • 911705
2Grommet N/A
18-0190GLM
  • 22390
OMC Stern Drive
  • 912157
1Wiper Gasket N/A
18-0880GLM
  • 33960
Mallory
  • 9-60400
OMC Stern Drive
  • 911878
1Shift Cover Gasket N/A
18-2001GLM
  • 86030
Johnson/Evinrude Outboard
  • 0330137
  • 310600
  • 313398
  • 317761
  • 321463
  • 321668
Mallory
  • 9-76212
OMC Stern Drive
  • 310600
  • 313398
  • 321463
  • 330137
2Oil Seal N/A
18-4248Johnson/Evinrude Outboard
  • 311598
Mallory
  • 9-60408
OMC Stern Drive
  • 311598
  • 3852105
Volvo Penta
  • 3852105
2Drain/Fill Plug Washer N/A
18-7127Chrysler/Force/US Marine
  • 25-32507
  • 25-F84305
  • F84304
GLM
  • 82370
Johnson/Evinrude Outboard
  • 313446
Mallory
  • 9-76527
Mercruiser Stern Drive
  • 25-32507
OMC Stern Drive
  • 313446
1O-Ring N/A
18-7130GLM
  • 81380
Johnson/Evinrude Outboard
  • 314728
  • 354731
Mallory
  • 9-76528
OMC Stern Drive
  • 314728
  • 354731
1O-Ring N/A
18-7137GLM
  • 45200
Johnson/Evinrude Outboard
  • 318372
Mallory
  • 9-76531
OMC Stern Drive
  • 318372
1O-Ring N/A
18-7138GLM
  • 83250
Mallory
  • 9-76533
OMC Stern Drive
  • 318717
3O-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
2O-Ring N/A
18-7475GLM
  • 86640
Johnson/Evinrude Outboard
  • 332584
Mallory
  • 9-76571
OMC Stern Drive
  • 332584
5O-Ring N/A
Lower Unit Seal Kit
Your Price:
$71.99

Lower Unit Seal Kit

676-18-2672

Interchanges/Replaces

GLM

  • 87656

Mallory

  • 9-74402

OMC Stern Drive

  • 439967
  • 984458
  • 984965
  • 985613
  • 987548

List of Containing Parts

Sierra Item # OE/Competitor # Quantity Description Image Comments
18-0166GLM
  • 86620
OMC Stern Drive
  • 911705
2Grommet N/A
18-0190GLM
  • 22390
OMC Stern Drive
  • 912157
1Wiper Gasket N/A
18-0440GLM
  • 33970
Mallory
  • 9-60453
OMC Stern Drive
  • 915719
1Water Passage Gasket N/A
18-0880GLM
  • 33960
Mallory
  • 9-60400
OMC Stern Drive
  • 911878
1Shift Cover Gasket N/A
18-2002Chrysler/Force/US Marine
  • 26-76868
GLM
  • 85130
Honda Outboard
  • 91252-ZW1-003
Johnson/Evinrude Outboard
  • 0320862
Mallory
  • 9-76202
Mercruiser Stern Drive
  • 26-30550
  • 26-76868
Mercury Marine
  • 26-30550
  • 26-70019
  • 26-73838
  • 26-76868
OMC Stern Drive
  • 320862
2Oil Seal N/A
18-4248Johnson/Evinrude Outboard
  • 311598
Mallory
  • 9-60408
OMC Stern Drive
  • 311598
  • 3852105
Volvo Penta
  • 3852105
2Drain/Fill Plug Washer N/A
18-7130GLM
  • 81380
Johnson/Evinrude Outboard
  • 314728
  • 354731
Mallory
  • 9-76528
OMC Stern Drive
  • 314728
  • 354731
1O-Ring N/A
18-7137GLM
  • 45200
Johnson/Evinrude Outboard
  • 318372
Mallory
  • 9-76531
OMC Stern Drive
  • 318372
1O-Ring N/A
18-7138GLM
  • 83250
Mallory
  • 9-76533
OMC Stern Drive
  • 318717
3O-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
2O-Ring N/A
18-7475GLM
  • 86640
Johnson/Evinrude Outboard
  • 332584
Mallory
  • 9-76571
OMC Stern Drive
  • 332584
5O-Ring N/A
18-7133GLM
  • 82400
Johnson/Evinrude Outboard
  • 305123
  • 321119
Mallory
  • 9-76529
OMC Stern Drive
  • 305123
1O-Ring N/A
18-0559Johnson/Evinrude Outboard
  • 0332585
5Oil Seal
18-7144GLM
  • 82440
Johnson/Evinrude Outboard
  • 326849
OMC Stern Drive
  • 326849
3O-Ring
NSSOMC Stern Drive
  • 0912388
1Gasket, Shift Rod CoverNo ImageN/A
Lower Water Pump Gasket
Your Price:
$1.99

Lower Water Pump Gasket

676-18-2828

Additional Details:

  • For: Mercury 20 Hp

Interchanges/Replaces

GLM

  • 31200

Mercury Marine

  • 27-39625
Lower Water Pump Gasket (Priced Per Pkg of 2)
Your Price:
$2.99

Lower Water Pump Gasket (Priced Per Pkg of 2)

676-18-2828-9

Additional Details:

  • For: Mercury 20 Hp

Interchanges/Replaces

GLM

  • 31200

Mercury Marine

  • 27-39625
Lower Water Pump Gasket (Priced Per Pkg of 2)
Your Price:
$4.99

Lower Water Pump Gasket (Priced Per Pkg of 2)

676-18-2823-9

Interchanges/Replaces

GLM

  • 31060

Mallory

  • 9-60039

Mercruiser Stern Drive

  • 27-32769

Mercury Marine

  • 27-19553
  • 27-32769
Lower Water Pump Seal
Your Price:
$3.99

Lower Water Pump Seal

676-18-3014

Additional Details:

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

Interchanges/Replaces

Chrysler/Force/US Marine

  • 26-821310

Mercury Marine

  • 26-821310
Lower Wear Plate Gasket
Your Price:
$3.99

Lower Wear Plate Gasket

676-18-0622

Interchanges/Replaces

Chrysler/Force/US Marine

  • 27-19701

GLM

  • 37470

Mallory

  • 9-60027

Mercury Marine

  • 27-19701
  • 27-197011
  • 27-8M0036675
  • 27-8M4502052
Lube Pump
Your Price:
$128.99

Lube Pump

676-18-9788

Key Features:

  • For filling lower units on outboards and stern drives
  • Tapered/unthreaded hose end

Additional Details:

  • Size: 5 Gallon (18.95L)

Use With:

  • 18-9600-5: Premium Lower Unit Gear Lube (5 Gallons)(18.95L)
  • 18-9620-5: Type "C" Gear Lube (5 Gallon)(18.95L)
  • 18-9650-5: Hi-Performance Gear Lube (5 Gallons)(18.95L)

Interchanges/Replaces

Mallory

  • 9-81004
Magnetic Drain Screw
Your Price:
$12.99

Magnetic Drain Screw

676-18-2378

Key Features:

  • Fits: Cobra 2.3, 3.0, 3.8 & 5.8L (1986-95), V-6, V-4 (1979-Up), 60-75hp 3 cyl. 40/50hp (1989-98)

Additional Details:

  • Head Style: Slot Head

Interchanges/Replaces

GLM

  • 21731

Johnson/Evinrude Outboard

  • 318544

Mallory

  • 9-72654

OMC Stern Drive

  • 318544
  • 912624
Magnetic Drain Screw
Your Price:
$15.99

Magnetic Drain Screw

676-18-2374

Additional Details:

  • Thread: M8-1.25

Use With:

Interchanges/Replaces

Mallory

  • 9-72652

Yamaha Outboard

  • 688-45341-00-00
  • 688-45341-10-00
  • 90340-08M02-00
Main Bearing
Your Price:
$25.99

Main Bearing

676-18-1131

Key Features:

  • .010 Undersize

Interchanges/Replaces

Mercruiser Stern Drive

  • 15103A4
  • 23-853851
  • 74313A4
Main Bearing
Your Price:
$66.99

Main Bearing

676-18-1137

Key Features:

  • .020 Undersize

Interchanges/Replaces

Mercruiser Stern Drive

  • 15103A3
  • 23-853852
  • 74314A3
Main Bearing
Your Price:
$58.99

Main Bearing

676-18-1320

Additional Details:

  • Size: .010

Interchanges/Replaces

Mercruiser Stern Drive

  • 23-801803
Mandrel
Your Price:
$30.99

Mandrel

676-18-9816

Key Features:

  • Removes and installs bearings

Additional Details:

  • Compatible Outboard Gear Cases: MC-I, R-MR, Alpha One, Alpha One/Gen II, and all Bravo

Interchanges/Replaces

Mercury Marine

  • 91-30366T1
Manifold
Your Price:
$389.99

Manifold

676-18-1848

Additional Details:

  • Material: CAST IRON
  • Fits: 4.3L V-6

Use With:

Interchanges/Replaces

GLM

  • 51480

HGE

  • 7656

OMC Stern Drive

  • 3852338
  • 3857656
  • 914899

Volvo Penta

  • 3847499
  • 3857656

List of Containing Parts

Sierra Item # OE/Competitor # Quantity Description Image Comments
NSSVolvo Penta
  • 21238201
1Adaptor, ManifoldNo ImageN/A
NSSVolvo Penta
  • 3852538
1Brass ReducerNo ImageN/A
18-8111GLM
  • 21887
Mercruiser Stern Drive
  • 22-36382
  • 35167
Mercury Marine
  • 22-36382
Osco
  • 1016004
1Pipe Plug N/A
18-7306Volvo Penta
  • 22274884
  • 853548
1Hose Clamp N/A
16-135-0340-181Shields #1350 H. D. Water Hose 3/4" x 18" N/A
Manifold
Your Price:
$326.99

Manifold

676-18-1932

Additional Details:

  • Material: CAST IRON
  • For: Port & Starboard

Use With:

Interchanges/Replaces

GLM

  • 51640

HGE

  • 6894

Volvo Penta

  • 856894

List of Containing Parts

Sierra Item # OE/Competitor # Quantity Description Image Comments
18-2971-1Barr
  • VO47-835908
GLM
  • 35080
Mallory
  • 9-65800
Osco
  • 35908
Volvo Penta
  • 835908
  • 856039
  • 857618
1Exhaust Manifold Gasket N/A
18-2909Barr
  • MC47-27-99757
Crusader
  • 97498
GLM
  • 32170
Mallory
  • 9-61421
Mercruiser Stern Drive
  • 27-99757
OMC Stern Drive
  • 3853412
  • 910157
  • 915025
Osco
  • CS-GH
Volvo Penta
  • 3853412
  • 856116
Yamaha Sterndrive
  • YSC-12190-00-AC
1Exhaust Manifold Gasket N/A
Manifold
Your Price:
$602.99

Manifold

676-18-1955-1

Key Features:

  • Supplied with mounting package

Additional Details:

  • Fits: MCM 140 (1982 & older)

Use With:

Interchanges/Replaces

Barr

  • MC 1 96705

GLM

  • 51212

Mercruiser Stern Drive

  • 52390A1
  • 96705A1

Osco

  • 6705

List of Containing Parts

Sierra Item # OE/Competitor # Quantity Description Image Comments
18-4009Barr
  • 160252
GLM
  • 51010
Mallory
  • 9-40541
Mercruiser Stern Drive
  • 52999
  • 60252
  • 60252A2
Osco
  • 60252
1Manifold End Plate N/A
18-1990Barr
  • 1-73813
GLM
  • 51030
Mercruiser Stern Drive
  • 48045
  • 54870
  • 73813
  • 73813A1
  • 73813F1
1Manifold Block Off Plate N/A
18-2833Barr
  • MC472799777
GLM
  • 31520
Mallory
  • 9-61407
Mercruiser Stern Drive
  • 27-52076
  • 27-99777
  • 27-997771
  • 27-997772
  • 27-99777B2
Osco
  • 52076
1Exhaust Elbow Gasket N/A
18-2832-1Barr
  • MC47-27-48043
GLM
  • 31490
Mallory
  • 9-61424
Mercruiser Stern Drive
  • 27-48043
  • 27-480431
Osco
  • 48043
1Manifold End Cap Gasket N/A
18-1204-1Barr
  • MC472796429
GLM
  • 33570
Mallory
  • 9-61419
Mercruiser Stern Drive
  • 27-96429
OMC Stern Drive
  • 912164
Osco
  • MO4-GH
1Exhaust Manifold Mounting Gasket N/A
18-0928-1Barr
  • MC472773814
GLM
  • 30920
Mercruiser Stern Drive
  • 27-73814
  • 27-738141
  • 27-807218
1Gasket, Manifold End Cap N/A
18-42571Pipe Plug N/A
18-4263Chrysler/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
1Pipe Plug N/A
Manifold
Your Price:
$539.99

Manifold

676-18-1956-3

Key Features:

  • 1 Piece design

Use With:

Interchanges/Replaces

Barr

  • MC 1 99798

GLM

  • 51210

Marine Power

  • 600333

Mercruiser Stern Drive

  • 860235A04
  • 99798A16
  • 99798A3
  • 99798A9

Osco

  • 9798
Manifold
Your Price:
$198.99

Manifold

676-18-1964

Key Features:

  • Water cooled center discharge manifold to fit the small block GM engine. All years.

Use With:

Interchanges/Replaces

Barr

  • CHV-1-83
Manifold
Your Price:
$472.99

Manifold

676-18-1966-1

Additional Details:

  • Fits: MCM 3.0L/LX (1990 & newer); Marine Power Engine Model E181S

Interchanges/Replaces

Mercruiser Stern Drive

  • 806867A12
  • 806867A2
  • 806867A3
  • 806867A8
  • 806867A9
  • 816329A3
  • 860235A03
  • 99798A18

List of Containing Parts

Sierra Item # OE/Competitor # Quantity Description Image Comments
18-0680GLM
  • 33580
Mallory
  • 9-61428
Mercruiser Stern Drive
  • 27-815528
OMC Stern Drive
  • 3853256
  • 914518
Volvo Penta
  • 3853256
1Exhaust Manifold Gasket N/A
18-2833Barr
  • MC472799777
GLM
  • 31520
Mallory
  • 9-61407
Mercruiser Stern Drive
  • 27-52076
  • 27-99777
  • 27-997771
  • 27-997772
  • 27-99777B2
Osco
  • 52076
1Exhaust Elbow Gasket N/A