Evinrude 50 HP 1973 Model 50302 50303 50372 50373

Clymer - 1973-1990 CLYMER EVINRUDE/JOHNSON OUTBOARD 48-235 HP SERVICE MANUAL  B736

• Covers 48-235 HP
• 1973-1990
• Shop Manual

SELOC - Johnson/Evinrude Outboards 1973-89 Repair Manual #1302

• Covers all 1.25-60 Hp, 1 and 2-cylinder, 2-stroke models.
• 1973-1989
• Repair Manual

18-3083 Sierra Impeller

18-3325 Water Pump Repair Kit  - Without Housing

• The Sierra 18-3325 Water Pump Kit Contains: (1) 18-2705 Oil Seal, (1) 18-3083 Impeller, (1) 18-3108 Impeller Key, (1) 18-3337 Grommet, (1) 18-3343 Wear Plate, (1) 18-7134 O-Ring

18-3336 Water Pump Housing

18-3343 Impeller Wear Plate

18-3376 Water Pump Repair Kit

• Sierra Water Pump Kit
• Meets or exceeds the original equipment quality
• Sierra part number: 18-3376
• Interchangeable with the following: Evinrude/Johnson 384956
• Contains: 18-2705 Oil Seal, 18-3083 Impeller, (2) 18-3136 Bolt, 18-3337 Grommet, 18-3343 Wear Plate, (2) 18-3369 Bolt, 18-7134 O-Ring, 18-3108 Impeller Key

18-3525 Water Pump Repair Kit - With Housing

18-3543 Marine Thermostat

• 143 deg farenheigt

18-3674 Thermostat Kit

• The Sierra 18-3674 Thermostat Kit is interchangeable with the following: GLM 13280. Contains: 18-1219 Grommet Gasket, 18-0182 Thermostat Gasket, 18-3135 Stainless Steel Bolt, 18-2546 Thermostat Gasket, 18-3567 Rubber Valve, 18-3562 Valve Cup, 18-1243 Valve Spring, 18-3563 Poppet Relief Valve, 18-3565 Retainer, 18-3543 Thermostat.
• Sierra Thermostat Kit
• 18-3543 Thermostat Included
• Sierra part number: 18-3674
• Interchangeable with the following: GLM 13280

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

18-1356 Pinion Gear Bearing

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

18-1367 Thrust Bearing

• Sierra Thrust Bearing
• Meets or exceeds the original equipment quality
• Sierra part number: 18-1367
• Interchangeable with the following: GLM 16320, Evinrude/Johnson 385068

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 Stainless Steel 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.

• 40-140 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  1977-1984, 1986-1994

• 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

BRP Evinrude Viper Stainless Steel for Runabouts and General Recreation

If you want speed, you want the Viper prop.  It's longer swept blades and larger diameter give this prop a better grip on the water faster acceleration, and greater top-end speed.  Excellent on any recreational boat, from runabouts and cruisers to deck boats.

• V6 - Standard Rotation
• V4 - Standard Rotation
• Versatile 3-Blade performance
• Excellent balance of speed and durability
• Recommended for runabout, deck/flats, multi-species, offshore and pontoon boats.
• Pressed In Rubber Hub

BRP Evinrude Rogue Stainless Steel for Small Runabouts and Flats Boats

• Provides extra stern lift
• Stays on plane with minimum RPM
• Custom high luster finish
• 4 Blade, Right Rotation
• Pressed In Rubber Hub

BRP Evinrude Raker H.O. for Bass Boats and High Performance

• Set the highest standards in top speed performance
• Maximizes the superior power and torque of Evinrude E-TEC G2 engine
• Superior bow lift
• Vented hub for faster acceleration
• Recommended for multi-species (fiberglass only) bass and sport runabout
• Pressed In Rubber Hub

OMC and Michigan Stainless Steel

• Pressed-In Rubber Hub
• 13 Tooth Spline, 4-1/4 inch gearcase

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.

Michigan Rapture Performance Stainless Steel

• Pressed-In Rubber Hub
• 13 Tooth Spline, 4-1/4 inch gearcase

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.

Michigan Apollo Stainless Steel,  XHS Drop-In Hub

• Michigan "B" Series Propellers Using Michigan XHS 206 or Michigan XHSII 210  Drop-In Hub Kit
• Do NOT use Gearcase Adapter Ring Supplied with the propeller.
• Note:  For 60 HP & 70 HP 4-Stroke engine applications, 1998 & Newer, use Michigan XHSII 210  Drop-In Hub Kit.  For all other engines, applications use Michigan XHS 206  Drop-In Hub Kit.

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

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.

Michigan Ballistic High-Performance Stainless Steel

• Michigan "B" Series Propellers Using Michigan XHS 206 or Michigan XHSII 210  Drop-In Hub Kit
• Do NOT use Gearcase Adapter Ring Supplied with the propeller.
• Note:  For 60 HP & 70 HP 4-Stroke engine applications, 1998 & Newer, use Michigan XHSII 210  Drop-In Hub Kit.  For all other engines, applications use Michigan XHS 206  Drop-In Hub Kit.

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:

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:

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

18-7042 Siearra Carb Kit

Note: 25, 35 HP 1995-Up Except 3 Cylinder Models

18-7093 Sierra Carburetor Needle and Seat

18-7210 Sierra Carburetor Float

18-7222 Sierra Carb Kit With Float

18-7820 Fuel Pump Kit 

• Sierra Fuel Pump Kit
• Contains 18-0850 Fuel Pump Gasket, 18-2900 Cap to Fuel Pump Gasket
• Sierra part number: 18-7820
• Interchangeable with the following: GLM 40820, Evinrude/Johnson 393103, Mallory 9-37702

18-4318 Powerhead Gasket Set

• Sierra Powerhead Gasket Set
• Meets or exceeds the original equipment quality
• Sierra part number: 18-4318
• Interchangeable with the following: Evinrude/Johnson 439083, 390076

Gasket Set Contains:

• 18-0963 Intake Manifold GasketTwin     335633     1
• 18-0850 Fuel Pump Mtg. Gasket            303615      1
• 18-0118 Carburetor Gasket                  325092       2
• 18-0983 Carburetor to Airbox               321497       1
• 18-3802 Head Gasket               327795,335359      1
• 18-0941 Water Jacket Cover Gasket      315538       1
• 18-0157 Air Box Split Gasket                330698       1
• 18-0128 Powerhead Mounting Gasket 326468, 351018  1
• 18-0136 Powerhead Mounting Gasket    328283         1
• 18-1224 Exhaust Cover Gasket             315869        1
• 18-1218 Exhaust Cover Gasket             315868        1
• 18-0182 Seal                                       310058        1

Note 50 HP 1971-1975 use 315539 Head Gasket, plus

Note 55 HP 1976 use 320658 Head Gasket, plus

Note 55/60 HP 1980-1985 2-Cylinder

18-2001 Oil Seal

18-2958 Head Gasket

18-4305 Powerhead Gasket Set

• Gasket Kit, Powerhead Johnson/Evinrude 40-50hp 2cyl 1981-1999
• Replaces: 392609 18-4305, 9-64113

Gasket Set Contains:

18-0851 Relief Port Twin Gasket 329826        1
18-0850 Fuel Pump Mtg. Gasket 303615         1
18-0941 Water Jacket Cover Gasket 315538   1
18-0118 Carburetor Gasket 325092                2
18-0120 Exhaust Cover Gasket 325211           1
18-0128 Powerhead Mtg. Twin Gasket 326468, 351018        1
18-3802 Head Gasket 327795, 335359              1
18-0136 Powerhead Mounting Gasket 328283    1
18-0157 Airbox Split Twin Gasket 330698          1
18-0154 Airbox Split Twin Gasket —                  1
18-0159 Airbox Split Twin Gasket 330909           1
18-0983 Carb. to Air Box Twin Gasket 321497    1
18-0182 Thermostat Gasket 310058                  1
18-0963 Intake Manifold Twin Gasket 335633     1

 Champion (5828) Stainless Steel Marine Plug Spark Plug

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

18-5755 Marine Power Pack

Champion 828M Spark Plug Ql77JC4

Also see:  Champion (5828) Stainless Steel Marine Plug Spark Plug

Also Fits Mercury Outboard

• 280 HP 2002 Offshore  2.5L EFI
• 280 HP 2002 Sport, SS 2.5L EFI
• 18 HP 1985-1980
• 9.8 HP 1985-1979
• 7.5 HP 1985-1979

Champion L77JC4 (821M) Copper Plus Small Engine Spark Plug

• .030 Gap

See Also:  Champion (5828) Stainless Steel Marine Plug Spark Plug

Ignition Coil Kit for Johnson & Evinrude

18-2688 Marine Lower Unit Seal Kit

Seal Kit Contents:

• Part #     Desc.     O.E.#   Qty.
• 18-2027  Oil Seal 321459    2
• 18-2855  Shift Housing Cover to Gearcase Gasket 314082  1
• 18-4248  Washer 311598   2
• 18-7100  O-Ring 301877    1
• 18-7109  O-Ring 317178    4
• 18-7127  O-Ring 313446    1
• 18-7128  O-Ring 313754    1
• 18-2001  Oil Seal 330137   2
• 18-7129  O-Ring 314491    1

18-7109 Marine O-Ring

ID: 0.214, Width: 0.048

18-7111 O-Ring

ID: 0.197, Width 0.113

18-7123 O-Ring

ID: 2.235, Width: 0.100

18-7127 O-Ring

ID: 3.315, Width: 0.135

18-7128 O-Ring

ID: 1.835, Width: 0.100

18-7137 Marine O-Ring

ID: 0.320, Width: 0.155

18-7146 O-Ring

ID: 1.120, Width: 0.100

18-7156 Marine O-Ring

ID: 1.185, Width: 0.100

18-0543 Oil Seal

• OD: 1.926", Shaft: 1.540", Width: 0.243"

18-2027 Marine Oil Seal for OMC

Note:  40 HP - AR, AE, AT Models Only

Note:  50/60 HP, 1981-1983 Rope Start Only

Note: 60 HP 1980-1983 Rope Start Only

Size: 0.625, OD: 1.125, Width: 0.150

18-6513 Starter Pawl, Pack of 3