Mercury V8 300 User Manual

a - CAN P/H terminator
b - Clean power connector
c - 14‑pin connector
d - CAN X terminator
e - PCM connector C
f - PCM connector B
Connector Pin Wire Color Function PCM
57554
AB
C
DE
F
G
H
J
K
A Red/black 12 V clean power (+) –
B Black Clean power ground (–) –
C N/A Not used –
D N/A Not used –
E Orange/green CAN H high –
F Purple 12 V wake circuit (+) CC1
G Green/orange CAN H low –
H N/A Not used
J White CAN P high BG2
K Blue CAN P low BG1
53172
B
A
A Yellow CAN X high BH2
B Brown CAN X low BH1
SmartCraft Circuit Diagrams
90-8M0146617 eng JULY 2018 © 2018 Mercury Marine Page 8A-7

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