Mercury Technical Database

Mercury 150hp EFI (3.0L)

Name: Mercury 150hp EFI (3.0L) Outboard Motor (2012)
Brand: Mercury
Availability: OutOfStock

150 HP 2012 4-Stroke Current Production ✓ Service Data Verified

Smaller Model 150hp V6 OptiMax

Current Model 150hp EFI (3.0L)

Larger Model 150hp OptiMax Pro XS

General Specifications

HP / kW 150 HP / 111.8 kW

Displacement 3000 cc (183.1 cu in.)

Cylinders 4 (Inline)

WOT RPM 5000 - 5800

Weight 206 kg / 454 lbs

Drive & Lower Unit

Gear Ratio 1.92:1

Shaft Length 20", 25"

Electrical System

Alternator Output 756 Watts

Starting System Electric

Technical Maintenance Toolkit

Verified service specifications for the Mercury 150hp EFI (3.0L) (2012)

Lubrication

Engine Oil

Mercury 10W-30

Oil Capacity 6 Liters

Gearcase Lube 828 ml

Ignition System

Spark Plug

NGK ZFR5F

Gap Setting 0.031"

Firing Order 1-2-3-4

Performance Specs

Idle RPM 700 ± 50

WOT Range 5000-5800

Alternator 756W

Standard Maintenance Intervals

20H Break-in Service

100H Annual Tune-up

300H Water Pump & Seals

Identification

The serial number for the Mercury 150hp EFI (3.0L) is typically found on a plate located on the transom bracket.

Technical Toolkit

Compare this 150HP engine → Identify your model year → Decode error codes → Propeller guide for this 150HP →

Maintenance Compatibility

These models share common service parts with the Mercury 150hp EFI (3.0L):

Model Evolution

History of the Mercury 150HP series over the years:

1978 150hp (Inline-6 Tower of Power) 1990 150hp Black Max 2000 150hp V6 Black Max 2000 150hp V6 XR4 (High Speed) 2000 150hp V6 XR6 2008 150hp Verado (L4) 2010 150hp V6 OptiMax 2012 150hp OptiMax Pro XS 2024 150 FourStroke

Category Discovery

All 150HP Motors Full Mercury Index 2010s Archive

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Reference Data

Information compiled from Mercury Marine factory service manuals and original sales literature published in 2012.