Shown below are 15 hp Johnson boat motors and parts for 15 hp Johnson outboard boat motors. Here are specs for the 2008 Johnson 15 hp outboard:
Engine: 2 cylinder
Bore & Stroke: 2.28" X 2.24"
Manual or Electric starter
Gear Shift: Forward, Neutral,Reverse
Alternator 7 Amp
Weight: 97 lbs dry
RPM Range: 5400-6000
Displacement: 302 cc

Model Numbers for Johnson 15 Outboards

Year Model 
1956 E-10, FD-10
1974 15E74-15EL74, 15R74-15RL74
1975 15E75-15EL75, 15R75-15RL75
1976 15E76-15EL76, 15R76-15RL76
1977 15E77-15EL77, 15R77-15RL77
1978 15E78-15EL78, 15R78-15RL78
1979 15E79-15EL79, 15R79-15RL79

evinrude johnson 9.9 15 hp water pump impeller 386084
 evinrude johnson 9.9 15 hp water pump impeller 386084
$13.99
EVINRUDE JOHNSON 5" GEARCASE EXTENSION 9.9 15 4STK.
 EVINRUDE JOHNSON 5" GEARCASE EXTENSION 9.9 15 4STK.
$25.00
1947 Johnson Sea Horse Model PO 15 22 HP Racing Motor
1947 Johnson Sea Horse Model PO 15 22 HP Racing Motor
$350.00
JOHNSON SEAHORSE 15 HP VERY NICE.....
 JOHNSON SEAHORSE 15 HP VERY NICE.....
$25.00
$200.00
johnson 15 h.p. tiller and cover with cables 4 stroke.
 johnson 15 h.p. tiller and cover with cables 4 stroke.
$65.00
1955 JOHNSON 25 HP 15" SHAFT ELECTRIC START OUTBOARD
 1955 JOHNSON 25 HP 15" SHAFT ELECTRIC START OUTBOARD
$699.00
$799.00
LATE 1950's JOHNSON SEA KING 5 HP 15" SHAFT OUTBOARD
 LATE 1950's JOHNSON SEA KING 5 HP 15" SHAFT OUTBOARD
$349.00
$399.00
Johnson Evinrude OMC Flywheel 9.9 15 HP Electric Start
 Johnson Evinrude OMC Flywheel 9.9 15 HP Electric Start
$125.00
Johnson 9.9 15 40hp Ignition Coil VERY GOOD SHAPE! LQQK
 Johnson 9.9 15 40hp Ignition Coil VERY GOOD SHAPE! LQQK
$29.99
Evinrude Johnson OMC OUTBOARD 15 HP CARBURETOR Carb
Evinrude Johnson OMC OUTBOARD 15 HP CARBURETOR Carb
$99.99