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 150 FourStroke (2024)
Lubrication
Engine Oil
Mercury FourStroke Oil 10W-30
Oil Capacity 6 Liters
Gearcase Lube 828 ml
Ignition System
Spark Plug
NGK LFR6A-11
Gap Setting 0.032"
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 150 FourStroke is typically found on a plate located on the transom bracket.
Technical Toolkit
Maintenance Compatibility
These models share common service parts with the Mercury 150 FourStroke:
Model Evolution
History of the Mercury 150HP series over the years:
Category Discovery
Reference Data
Information compiled from Mercury Marine factory service manuals and original sales literature published in 2024.