Evinrude/Johnson/OMC 88 HP 1991 Model 88MSLEI

Clymer - Evinrude/Johnson 2-300 HP Outboards (Includes Jet Drives and Sea Drives) 1991-1994   B733

• Covers 2 - 300 HP
• 1991-1994
• Shop Manual

SELOC - Johnson/Evinrude Outboards, 1973-91 Repair Manual  #1308

• Covers all 60-235 HP, 3-Cylinder, V4 and V6, 2-Stroke Models, Includes Jet Drives
• 1973-1991
• Repair Manual

18-1243 Thermostat Valve Spring

(V4/V6 Crossflow)

18-2391 Thermostat Grommet  - V4 Crossflow

• The Sierra 18-2391 Grommet is interchangeable with the following: GLM 86481, Evinrude/Johnson 321692. Each Sierra product meets or exceeds the original equipment part it replaces.
• Sierra Grommet
• Meets or exceeds the original equipment quality
• Sierra part number: 18-2391

18-3059 Impeller

 18-3390 Water Pump Repair Kit Without Housing

18-3391 Water Pump Housing Kit - With Housing

• Sierra Water Pump Kit with Housing
• Meets or exceeds the original equipment quality
• Sierra part number: 18-3391
• Interchangeable with the following: GLM 12103, Evinrude/Johnson 395072
• Contains: 18-2557 Impeller Gasket, 18-2704 Grommet, 18-2769 Rubber Seal, (4) 18-3136 Bolt, 18-3153 Bolt, 18-3299 Impeller Key, 18-3346 Cup and Plate Assembly

18-3543 Marine Thermostat

• 143 deg farenheigt

Sierra 18-3564 Poppet Relief Valve - V4 Crossflow

• Sierra Poppet Relief Valve
• Meets or exceeds the original equipment quality
• Sierra part number: 18-3564
• Interchangeable with the following: GLM 46170, Evinrude/Johnson 318395

18-3673 Thermostat Kit for V-4 Crossflow

• Sierra Thermostat Kit
• Contains: 18-0675 Thermostat Gasket, 18-0977 Thermostat Gasket, 18-2391 Grommet, 18-3564 Poppet Relief Valve, 18-1243 Valve Springs, 18-3543 Thermostat
• Sierra part number: 18-3673
• Interchangeable with the following: GLM 13270

18-1350 Carrier Needle Bearing

• Sierra Carrier Bearing
• Meets or exceeds the original equipment quality
• Sierra part number: 18-1350
• Interchangeable with the following: GLM 22860, Evinrude/Johnson 379504, OMC 379504

18-1351 Carrier Needle Bearing

• Sierra Carrier Bearing
• Meets or exceeds the original equipment quality
• Sierra part number: 18-1351
• Interchangeable with the following: GLM 22870, Evinrude/Johnson 382407, OMC 382407

18-1357 Pinion Needle Bearing

• Sierra Pinion Bearing
• Meets or exceeds the original equipment quality
• Sierra part number: 18-1357
• Interchangeable with the following: GLM 22880, Evinrude/Johnson/OMC 384195

18-1365 Thrust Bearing

• Sierra Thrust Bearing
• Meets or exceeds the original equipment quality
• Sierra part number: 18-1365
• Interchangeable with the following: GLM 16330, Evinrude/Johnson 387656, 383248, OMC 387656
• Thrust Driveshaft Johnson/Evinrude 90-250hp OMC Stringer/Cobra All Models

18-1366 Thrust Bearing

• Sierra Thrust Bearing
• Meets or exceeds the original equipment quality
• Sierra part number: 18-1366
• Interchangeable with the following: GLM 16300, Evinrude/Johnson 382408

18-1371 Thrust Forward Bearing

• Sierra Thrust Forward Bearing
• Meets or exceeds the original equipment quality
• Sierra part number: 18-1371
• Interchangeable with the following: GLM 16310, Evinrude/Johnson 385043, OMC 385043, 3852221

18-2219 Reverse Gear

18-2220 Sliding Clutch

18-2221 Gear Set

• Sierra Gear Set
• Meets or exceeds the original equipment quality
• Sierra part number: 18-2221
• Interchangeable with the following: GLM 22630, Mallory 9-73560
• Fit specific, check part numbers to ensure proper fit

Gear Set Contents:

• Part #        Desc.            O.E.#
• 18-2218  Forward Gear   434063
• 18-2219  Reverse Gear   333077
• 18-2220  Sliding Clutch   323664

18-2229 Driveshaft Shim

.003", 1.24 ID

18-2230 Driveshaft Shim

.004", 1.24" ID

18-2231 Driveshaft Shim

.005", 1.24" ID

18-2252 Prop Shaft

• Sierra Prop Shaft
• Meets or exceeds the original equipment quality
• Sierra part number: 18-2252
• Interchangeable with the following: GLM 22416, Evinrude/Johnson 436888, 387818, OMC 387818
• Fit specific, check part numbers to ensure proper fit

18-2277 Lower Drive Shaft

• Sierra Lower Drive Shaft
• Meets or exceeds the original equipment quality
• Sierra part number: 18-2277
• Interchangeable with the following: GLM 22409, Evinrude/Johnson 335722
• Fit specific, check part numbers to ensure proper fit

18-3705 Marine Prop Nut

18-3716 Marine Prop Nut Kit

Prop Kit Contents:

• Part #      O.E.#   Description
• 18-3705  314503   Prop Nut
• 18-3742  314502   Cotter Pin
• 18-4228  315810   Prop Spacer

18-3742 Marine Cotter Pin

• Sierra Cotter Pin
• Meets or exceeds the original equipment quality
• Sierra part number: 18-3742-9
• Interchangeable with the following: GLM 22120, Evinrude/Johnson 314502, OMC 314502
• Size: 1/8 x 1-1/4"

18-4222 Thrust Washer

18-4232 Marine Prop Spacer

40 - 140 HP Aluminum Propellers for Large (4-1/4") Gearcase and Thru-Hub Exhaust

Fits the following Evinrude Johnson Outboards

• 40-140 HP (Large Gearcase & Thru-Hub Exhaust)
• 13 Tooth Spline, 4-1/4 inch gearcase
• Be sure to count the number of spline teeth on your prop shaft.

• 40-75 HP (Large Gearcase & Thru-Hub Exhaust) Pleasure
• 40 HP E-TEC  2004-Newer
• 50 HP 2 Cyl  1971-1974
• 50 HP 3 Cy   1994 & 1998
• 50 HP E-TEC 2004-Newer
• 55 HP 3 Cyl  1968-1969
• 55 HP E-TEC 2009-Newer
• 60 HP 3 Cyl  1970-1971, 1986-2001
• 60 HP E-TEC 2004-Newer
• 60 HP 4-Stroke 1998-Newer
• 65 HP 3 Cyl  1972-1973
• 65 HP Pontoon Series  2014-Newer
• 70 HP 3 Cyl  1974-Newer
• 70 HP 4-Stroke  1998-Newer
• 75 HP 3 Cyl  1975-1984
• 75 HP  2004-Newer
• 85 HP  1969-1980, 1991-1995
• 88 HP  1981-Newer
• 90 HP  1981-Newer
• 90 HP E-TEC   2004-Newer
• 100 HP  1979-1980, 1988-Newer
• 110 HP  1986-1989
• 115 HP & 115 HP HO  1973-Newer
• 115 HP E-TEC 2004-Newer
• 120 HP  1986-1994
• 125 HP  1971-1972
• 130 HP E-TEC 2009-2010
• 135 HP  1973-1976
• 140 HP  1977-1994

• 45-140 HP (Large Gearcase & Thru-Hub Exhaust) Commercial
• 45 HP 2 Cyl  1986-1995
• 45 HP 1986-Newer
• 50 HP 2 Cyl  1977-1979
• 55 HP 2 Cyl  1980-Newer
• 60 HP 1971-1974
• 65 HP 1972-1973
• 65 HP 3 Cyl  1984 -2001
• 70 HP 3-Cyl. 1974-2001

Michigan Vortex Aluminum Props,  XHS Drop-In Hub

• B Series Propellers Using XHS 206 or XHSII 210  Drop-In Hub Kit
• 13 Tooth Spline, 4-1/4 inch Gearcase, Thru-Hub Exhaust
• Do NOT use Gearcase Adapter Ring Supplied with the propeller.
• Note:  For 60 HP & 70 HP 4-Stroke engine applications, 1998 & Newer, use XHSII 210  Drop-In Hub Kit.  For all other engine, applications use XHS 206  Drop-In Hub Kit
• Note:  When replacing Interchangeable Hub Evinrude aluminum propeller with Michigan Match, Michigan Match Thrust Washer P/N 990406 is required.

Pitch is how far, in inches,  the boat would travel with one prop rotation (under ideal conditions).  Higher pitch = Faster, Lower Pitch = Slower and more power.

BRP Evinrude/Johnson OMC and Michigan Aluminum Propellers

Note:  When replacing Interchangeable Hub Evinrude aluminum propeller with Michigan Match, Michigan Match Thrust Washer P/N 990406 is required.

Pitch is how far, in inches,  the boat would travel with one prop rotation (under ideal conditions).  Higher pitch = Faster, Lower Pitch = Slower and more power.

Other compatible propeller options:

40 - 140 HP Aluminum Propellers for Large 4-1/4" Gearcase and Thru-Hub Exhaust

40 - 140 HP Stainless Steel Propellers for Large 4-1/4" Gearcase and Thru-Hub Exhaust

Return to Propellers:

6211188  Starter Drive Assembly

• Fits: 9.9/15 4-Stroke, (1997 & up)
• Fits 85 thru 115 (1973-1999) Crossflow  - (Sierra 18-5634, OEM 586283, 584613 Starter)

18-5697 Starter Brush and Spring Set

• Sierra Brush and Spring Set
• Meets or exceeds the original equipment quality
• Sierra part number: 18-5697
• Interchangeable with the following: Arco BK900, Chrysler F15164, 74384, Evinrude/Johnson 385952, Mercury 75384, 57390, 63292, 753841, 898265016, Mercury 75384

Power Trim Relay 586224 582472 584416 18-5705 Johnson Evinrude OMC

583408 582399 Regulator Rectifier

• Replace: 582399, 583408, CDI 153-3408, Sierra 18-5708
• 3 Wires for Outboard Evinrude Johnson
• Three months warranty.

18-5808 STARTER SOLENOID

18-7038 Carburetor Needle and Seat

18-7046 Carburetor Kit

18-7800 Fuel Pump Kit 

• The Sierra 18-7800 Fuel Pump Kit is interchangeable with the following: GLM 40850, Evinrude/Johnson 438616, 433519, Mallory 9-37701. Contains: (2) 18-7796 Check Valve, (1) 18-7413 O-Ring, (1) 18-7403 O-Ring, (1) 18-0850 Fuel Pump Gasket.
• Sierra Fuel Pump Kit
• Meets or exceeds the original equipment quality
• Sierra part number: 18-7800
• Interchangeable with the following: GLM 40850, Evinrude/Johnson 438616, 433519, Mallory 9-37701
• Contains: (2) 18-7796 Check Valve, (1) 18-7413 O-Ring, (1) 18-7403 O-Ring, (1) 18-0850 Fuel Pump Gasket

438556 Evinrude Johnson OMC BRP Replacement Fuel Pump 20-140 HP

It of often cheaper to replace the entire fuel pump than to buy a repair kit.

18-4303 Sierra Powerhead Gasket Set

• Gasket Kit, Powerhead Johnson/Evinrude V4 Crossflow 1977-1992
• Replaces: 439085,391300 18-4303-1, 389556, 39080, 391300, 439085, 9-64112

Gasket Set Contents:

• 18-0850 Fuel Pump Mtg Gasket  303615             1
• 18-2876 By-Pass Cover Gasket  307133             4
• 18-2866 Exhaust Cover Gasket  317914             2
• 18-0953 Water Passage Gasket  317951            1
• 18-0117 Exhaust Plate Gasket   317995             1
• 18-2873 Gasket                         318335             2
• 18-2956 Water Jacket Head Gasket 318358         2
• 18-2867 Manifold to Crankcase Gasket 319174    1
• 18-2857 Air Silencer to Carb. Gasket  386573, 319771         2
• 18-0985 Air Silencer Gasket             321722        1
• 18-2864 Adapter to Powerhead Gasket 321727     1
• 18-0991 Leaf Plate Gasket              321907           4
• 18-2547 Water Pass.Cover Gasket  322858          1
• 18-0102 Exhaust ManifoldGasket    323469           1
• 18-0134 Intake Plate Gasket          326926           1
• 18-0977 Thermostat Gasket           332369           2

18-2001 Oil Seal

18-2956 Head Gasket

 18-3898 Low Compression Head Gasket

• Sierra Head Gasket
• Meets or exceeds the original equipment quality
• Sierra part number: 18-3898
• Interchangeable with the following: GLM 35650, Evinrude/Johnson 332819

18-8307 Lower Main Seal

• Sierra Lower Main Seal
• Meets or exceeds the original equipment quality
• Sierra part number: 18-8307
• Interchangeable with the following: GLM 86790, Evinrude/Johnson 0331103
• OD.: 1.628"; Shaft Size: 1.110"; Width: 0.448"

18-5179 Ignition Plug In Coil

18-5770 Power Pack for Crossflow 

• Sierra Power Pack
• Meets or exceeds the original equipment quality
• Sierra part number: 18-5770
• Interchangeable with the following: CDI 113-4028, Evinrude/Johnson 584028, Mallory 9-25021

Champion (5931) Stainless Steel Marine Spark Plug

• Unique anti-fouling design
• Engineered to exceed OE designs
• Maximum durability
• Designed for easy starting
• Gap 0.03

Champion RL82C, QL82C, BR7HS (874M) Marine

• Johnson/Evinrude Gap 0.03

Also see: Champion (5931) Stainless Steel Marine Spark Plug

Mercury Outboard

• 110 HP  1969-1967 1100     0.03
• 95 HP  1969-1967 950    0.03
• 65 HP  1969-1967  650S    0.03
• 50 HP  1969-1967  500M     0.03
• 50 HP  1969-1967  500S     0.03
• 35 HP  1969-1967  350     0.03
• 20 HP  1969-1967  110     0.03
• 20 HP  1969-1967  200     0.03
• 11 HP  1969-1967  110    0.03
• 11 HP  1969-1967  200     0.03

Sierra 18-1353 Center Main Bearing

• Sierra Center Main Bearing
• Meets or exceeds the original equipment quality
• Sierra part number: 18-1353
• Interchangeable with the following: GLM 22810, Evinrude/Johnson 5007190, 387041

18-1374 Wrist Pin Bearing

• Sierra Wrist Pin Rod
• Meets or exceeds the original equipment quality
• Sierra part number: 18-1374
• Interchangeable with the following: GLM 16220, Evinrude/Johnson 395627, Mallory 9-51103, Wiseco W5217

18-1377 Center Main Bearing

• Sierra Center Main Bearing
• Meets or exceeds the original equipment quality
• Sierra part number: 18-1377
• Interchangeable with the following: GLM 22710, Evinrude/Johnson 352960, 320499

18-3905 Marine Piston Ring

• 4 and 6 cylinder
• 3.53 inch bore (.03 oversize)
• OMC 396504

18-4040 Marine Needle Bearing

18-4075 Connecting Rod Bolt

• Replaces OEM part # 308186

18-4100 Piston Kit  .030 Oversize

• 3.53 inch (.03 oversize)
• OMC 396585, 396588
• GLM Part Number: 24030; Sierra Part Number: 18-4100; OMC Part Number: 5006669

18-4110 Piston

• 4 and 6 Cylinder
• 3.52 inch bore size (.02 oversize)

18-4120 Piston Kit - Standard Bore

• Sierra Piston Kit
• 85-300 HP, 4 and 6 cylinder
• Bore Size: 3.500 (Standard Bore)
• Sierra part number: 18-4120
• Interchangeable with the following: GLM 24010, Evinrude/Johnson 393271, 393924, 5006658. 5006661, Mallory 9-53420, Wiseco 3073PS, 3173PS
• Fit specific, check part numbers to ensure proper fit

392591 Connecting Rod

• Johnson Evinrude Connecting Rod
• 392591
• C# 321712

Sierra 18-1361 Rod Crank End Bearing

• ierra Rod Crank End Bearing
• Meets or exceeds the original equipment quality
• Sierra part number: 18-1361
• Interchangeable with the following: GLM 22820, Evinrude/Johnson 387787, Mallory 9-51100
• Fit specific, check part numbers to ensure proper fit

Sierra 18-1386 Powerhead Bearing Kit

• Sierra Powerhead Bearing Kit
• Meets or exceeds the original equipment quality
• Sierra part number: 18-1386
• Contains the following: 18-1353 Center Main Bearing, 18-1377 Center Main Bearing, 18-1374 Wrist Pin Bearing, 18-1395 Lower Crankshaft Bearing, 18-1361 Rod Crank Bearing

18-1395 Lower Crankshaft Bearing

• Sierra Lower Crankshaft Bearing
• Meets or exceeds the original equipment quality
• Sierra part number: 18-1395
• Interchangeable with the following: Evinrude/Johnson 385503, Mallory 9-51106

18-3906 Marine Piston Ring

• 3.53 inch (.03 oversize)

18-2623 Lower Unit Seal Kit

Note:  2004-AB E-TEC - Non SLE gearcase only

Complete Lower Unit Seal Kit for Johnson Evinrude V4, V6, V8

18-2623 is an equivalent to an earlier OEM number 439141 (this number is no longer available from the OEM, now 439141 supersedes to part number 5006373).

18-8384 is equivalent to 5006373 (neither of these is equivalent to the 18-2623)

The OEM part 18-8384 and 5006373 are used to replace all earlier part numbers including the 18-2623, while the 18-2623 and 439141 are limited models that call for this specific number or an earlier number that supersedes up to OEM number 439141.

Seal Kit Contents
Part #    Desc.          O.E. #       Qty.
18-0110 Shift Housing Gasket 314082 1
18-2001 Seal 330137 2
18-2002 Seal 320862 2
18-2026 Seal 321453 2
18-2061 Seal 329922 1
18-2062 Seal 329923 1
18-2377 Screw 316563 4
18-2378 Magnetic Drain Screw 318544 1
18-2536 O-Ring 315788 1
18-2557 Impeller Gasket 338484 1
18-4248 Washer 311598 2
18-7109 O-Ring 317178 1
18-7120 O-Ring 307853 1
18-7127 O-Ring 313446 1
18-7130 O-Ring 314728 1
18-7133 O-Ring 305123 2
18-7137 O-Ring 318372 2
18-7142 O-Ring 322119 1
18-7144 O-Ring 333572 3
18-7145 O-Ring 332584 1
18-7475 Washer 328743 4
18-8300 Seal 341280 1
18-8301 Seal 341281 1

Sierra Marine Lower Unit Seal Kit is equivalent to parts:

• 439141 Evinrude Johnson OMC BRP
• 9-74106 Mallory Marine

18-2218 Forward Gear Set

18-7133 Marine O-Ring

ID: 3.780, Width: 0.135

434519 Johnson Evinrude OMC Trim & Tilt O-Ring & Seal Rebuild Kit

60-300 HP 1991-2006 TNT Units

5006703 Piston Kit  .020 Oversize

18-2026 Marine Oil Seal for OMC

Size: 0.875, OD: 1.250, 0.188

18-2061 Marine Oil Seal

Size: 0.822, OD: 1.375, Width: 0.195

18-2062 Marine Oil Seal

Size: 0.875, OD: 1.375, Width: 0.207

18-2074 Oil Seal

Size: 1.625, OD: 2.125, Width: 0.250

18-5634 Starter for V4 Crossflows