Johnson 70 HP 1978 Model 70EL78

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, 1973-91 Repair Manual  #1308

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

18-3082 Sierra Impeller

18-3127 Sierra Impeller Plate

 18-3388 Water Pump Repair Kit - Without Housing

18-3557 Thermostat

143 deg

 18-3669 Thermostat Kit

• The Sierra 18-3669 Thermostat Kit is interchangeable with the following: GLM 13450. Contains : (1) 18-0929 Thermostat Gasket, (1) 18-2548 Thermostat Cover Gasket, (1) 18-3557 Thermostat.
• Sierra Thermostat Kit
• Contains : (1) 18-0929 Thermostat Gasket, (1) 18-2548 Thermostat Cover Gasket, (1) 18-3557 Thermostat
• Sierra part number: 18-3669
• Interchangeable with the following: GLM 13450

18-1154 Marine Ball Bearing

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

18-1371 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

18-2207 Marine Forward Gear Set

Forward and pinion gears

OMC Part Number 397338

18-2208 Marine Reverse Gear

18-2209 Marine Sliding Clutch

18-2210 Gear Set

Gear Set Contains:

• Part #         Desc.              O.E.#
• 18-2207    Forward Gear    397338
• 18-2208    Reverse Gear    318304
• 18-2209    Sliding Clutch    318303

18-2224 Driveshaft Shim

.003",  1.58" ID

18-2225 Driveshaft Shim

.004", 1.56" ID

18-2226 Driveshaft Shim

.005", 1.53" ID

18-2227 Driveshaft Shim

.006", 1.53 ID

18-2228 Driveshaft Shim

.007", 1.53 ID

18-2250  Propeller Shaft

18-2355 Marine Prop Shaft

For: 35, 40, 48, 50, 55, 60, 70, 75 HP 2 & 3 cyl outboards (1975-1987)

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:

18-5808 STARTER SOLENOID

18-5827 Regulator/Rectifier

• The Sierra 18-5827 Regulator/Rectifier is interchangeable with the following: CDI 193-4476, Evinrude/Johnson 585001, 584476, Mallory 9-17202. Each Sierra product meets or exceeds the original equipment part it replaces.
• Sierra Regulator/Rectifier
• Meets or exceeds the original equipment quality
• Sierra part number: 18-5827
• Interchangeable with the following: CDI 193-4476, Evinrude/Johnson 585001, 584476, Mallory 9-17202

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

18-4302 Marine Powerhead Gasket Set

Gasket Set Contents:

• 18-2960 Head Gasket 313413                               1
• 18-2865 Adapter to Powerhead Gasket 313763    1
• 18-0951 Carb to Manifold Gasket 317305              1
• 18-2543 Water Jacket Gasket 318609                   1
• 18-0989 Air Silencer Gasket 321794                      1
• 18-0118 Carburetor Gasket 325092                      3
• 18-0102 Exhaust Manifold Gasket 323469             1
• 18-2913 Exhaust Cover Gasket 331916                 2
• 18-2938 Exhaust Cover Gasket 331917                 1
• 18-2548 Thermostat Cover Gasket 332108            1
• 18-0975 Carb to Silencer Gasket 333008               1

 Does not include seals.

18-4321 Powerhead Gasket Set

• Sierra Powerhead Gasket Set
• Meets or exceeds the original equipment quality
• Sierra part number: 18-4321
• Interchangeable with the following: GLM 39390, Evinrude/Johnson 438904, 398047, Mallory 9-64101

Gasket Set Contents:

• 18-0118 Carburetor Gasket  325092        3
• 18-0989 Air Silencer Gasket  321794         1
• 18-0975 Carb to Silencer Gasket 333008     1
• 18-3836 Head Gasket                329836       1
• 18-1202 Thermostat Cover Gasket 329830   1
• 18-1205 Adapter Gasket               329828     1
• 18-1207 Exhaust Manifold Gask 329833, 343863  1
• 18-1212 Intake Manifold Gasket    326926       1
• 18-1219 Grommet                        320880       1
• 18-1221 Retainer                          330273      1

Note 65 HP 1972-1973 use 313413 Head Gasket, plus

18-0989 Air Silencer Gasket

• Sierra Air Silencer Gasket
• Meets or exceeds the original equipment quality
• Sierra part number: 18-0989
• Interchangeable with the following: GLM 34430, Evinrude/Johnson 321794, Mallory 9-60418

18-2001 Oil Seal

18-2960 Head Gasket

18-3895 Low Compression Head Gasket

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"

 Champion (5828) Stainless Steel Marine Plug Spark Plug

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

18-5754 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

13-1872 Upper Main Bearing

CAGED BEARING KIT

• GLM Part Number: 22800; Sierra Part Number: 18-1352; Mercury Part Number: 31-67445; OMC Part Number: 378252
• Metal Cage 16 NEEDLES
• 1.375 Journal Size 40C (1974-Thru) 45-60HP 2-Cyl. (1971-Thru) 3-Cyl. (All) V4 (1962-1978)

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

18-1378 Rod Bearing Complete

Johnson/Evinrude Rod Bearing for (18-135HP) Outboard

18-3911 Piston Rings  .20 OS

• 3.020 / .020
• For 2&3 Cyl, Johnson/Evinrude 2 /3 HP
• Works with 18-4114 Piston

18-4040 Marine Needle Bearing

18-4075 Connecting Rod Bolt

• Replaces OEM part # 308186

18-4104 Piston Kit

• Sierra Piston Kit
• Bore Size: 3.030/0.030
• Sierra part number: 18-4104
• Interchangeable with the following: GLM 24080, Evinrude/Johnson 396583, 5006666, Mallory 9-53418, Wiseco 3015P3, 3115P3

Sierra 18-3910 Piston Ring Set - Standard Bore

• For Johnson/Evinrude 2 Cyl 25-35 HP mothrs with 3.000 inch bore.

Sierra 18-3912 Piston Rings - Bore 3.030/.030

For Johnson/Evinrude 2/3 Cylinder, 25-35 HP Motors

Sierra 18-4114 Piston Kit - 3.020/.020

• Sierra Piston Kit
• Meets or exceeds the original equipment quality
• Sierra part number: 18-4114
• 3 Cylinder 60-75 HP Johnson/Evinrude
• Interchangeable with the following: GLM 24060, Evinrude/Johnson 387285, 5006653, Mallory 9-53417, Wiseco 3015P2, 3115P2

18-2660 Marine Lower Unit Seal Kit

Note:  50 and 60 HP - 3 Cylinder Only

Seal Kit Contents:

• Part #      Desc.    O.E. # Qty.
• 18-2059 Oil Seal 321466   1
• 18-2064 Oil Seal 332205   1
• 18-2537 Rubber Seal 324937 1
• 18-2855 Shift Housing Cover to Gearcase Gasket 314082 1
• 18-4248 Washer 311598 2
• 18-7120 O-Ring 307853 1
• 18-7127 O-Ring 313446 1
• 18-7128 O-Ring 313754 1
• 18-7137 O-Ring 318372 1
• 18-7145 O-Ring 333572 2
• 18-7475 Quad Ring 332584 4
• 18-7174 O-Ring 910582, 326649 1
• 18-2001 Oil Seal 330137 2

18-8383 Lower Unit Seal Kit

For E-Tec 40, 50, 60 HP

18-7109 Marine O-Ring

ID: 0.214, Width: 0.048

18-7111 O-Ring

ID: 0.197, Width 0.113

18-7115 O-Ring

ID: 0.1735, Wisth: 0.135

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

18-7140 Marine O-Ring

ID: 2.750, Width: 0.135

18-7174 Marine O-Ring

ID: 0.620, Width: 1.100

18-0543 Oil Seal

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

18-2059 Marine Oil Seal for OMC

Size: 0.750, OD: 1.126, Width: 0.200

18-2060 Marine Oil Seal for OMC

Note: 50/60 HP 1981-1983 - Electric Only

Note: 50/60 HP 1986-1987 - Small Gearcase Only

Size: 1.000, OD: 1.375, Width: 0.250