Mercury V8 300 User Manual

Clean Power
DTS models
a - CAN P/H terminator
b - Clean power connector
c - 14‑pin connector
d - PCM connector C
Mechanical models
a - CAN P/H terminator
b - Clean power connector
c - 14‑pin connector
d - Trim harness connector
e - Cowl trim switch connector
f - PCM connector C
Connector Pin Wire Color Function PCM
65743
B
A
A Red/black 12 V clean power (+) CA4
B Black Clean power ground (–) –
RED/BLK
BLK
RED/BLK
BLK
RED/BLK
BLK
RED/BLK
A B C D E F G H
J
K
A B C D E F G H
J
K L M N P
H4
A4
A1
AB
A B C D E
F G H
J
K
N
K
J
H
G
F
E
C
B
A
D
M
L
P
AB
A
B
65446
a
b
c
d
A
B
C
D
E
F
G
H
1
2
3
4
A
B
C
D
E
F
G
H
A
H
1
4
S114B
RED/BLK
BLK
RED/BLK
BLK
RED/BLK
RED/BLK
RED/BLK
BLK
RED/BLK
A B C D E F G H
J
K
A B C D E F G H
J
K L M N P
A
B
C
3
2
1
H4
A4
A1
AB
A B C D E
F G H
J
K
N
K
J
H
G
F
E
C
B
A
D
M
L
P
A
B
C
D
E
F
G
H
1
2
3
4
A
B
C
D
E
F
G
H
A
H
1
4
1 2
3
BC A
AB
A
B
65447
a
b
c
d
e
f
1
SmartCraft Circuit Diagrams
90-8M0146617 eng JULY 2018 © 2018 Mercury Marine Page 8A-9

Mercury V8 300 Specifications

General

Horsepower	300 HP
Displacement	4.6 L
Full Throttle RPM Range	5200-6000 RPM
Fuel Induction System	Electronic Fuel Injection (EFI)
Gear Ratio	1.75:1
Starting	Electric
Shaft Length	20 in, 25 in, 30 in
Warranty	3-Year Limited Warranty
Engine Type	V8
Fuel Type	87 Octane
Bore x Stroke	92 mm x 86 mm