Mercury 150 HP Racing Long Shaft Outboard Motor with Electric Start, Steering, and Trim Tilt

The Mercury Racing 150 L is a 4-stroke outboard marine engine with 150 HP / 112 kW and a 3400 cc V6 (6 Cylinder) engine, designed for high-speed performance boats, racing boats, and offshore sport boats that require a long shaft. The Racing series is Mercury's high-performance oriented outboard engine group. With a naturally aspirated high-performance engine and Racing ECU calibration, maximum power and speed are targeted.

Racing 150 L Series Features and Technology Advantages

High-performance ECU calibration extends the optimal power band compared to standard FourStroke engines. Precise maneuver control at high speeds is achieved with AMS electro-hydraulic steering.

• V6 (6 Cylinder) Engine (3400 cc): High-performance ECU calibration extends the optimal power band compared to standard FourStroke engines
• Long Shaft (508 mm (20")): Propeller operates at optimum depth at the correct transom height
• High-Performance ECU: Extended power band with Racing calibration
• Electric Start: Instant activation with key or button — comfortable and quick starting
• Electric Trim & Tilt (Power Trim & Tilt): Adjust trim angle with a button while cruising — fuel efficiency optimization; lift engine completely up with tilt
• External Floating Fuel System: Connection for large capacity external tank — range determined by user needs

Long Shaft — What Boat Type Is It Suitable For?

A long shaft (508 mm (20")) is suitable for the vast majority of inflatable boats, aluminum and fiberglass boat models. For boats with a transom height of 381 mm, a short shaft model should be preferred.

Technical Specifications

Who Is This Engine For?

• High-speed performance boats: Maximum speed with Racing performance configuration
• Offshore racing and sport boats: Precise maneuverability at high speeds with AMS electro-hydraulic system
• Multi-engine speed-focused configuration: Coordinated power with DTS synchronization
• Speed record and sport performance goals: Mercury Racing engineering

Maintenance and Longevity

4-stroke Mercury engines operate trouble-free for many years with regular oil changes and an end-of-season maintenance protocol. The impeller of the water-cooled system should be checked every 100 hours or every two seasons. In saltwater use, freshwater flushing is mandatory after each use.

Related maintenance categories: Maintenance Kit | Engine Oil | Impeller | Mercury Spare Parts

Frequently Asked Questions

Which boat type is the Mercury Racing 150 HP engine suitable for?

The Racing series, with 150 HP power, is developed for speed-oriented performance boats. It provides maximum performance in offshore racing boats, catamarans, and high-speed sport boats. Weight optimization and power density are priorities in this segment.

How does the High-Performance Mercury Racing engine work?

The high-performance ECU uses different injection timing and ignition maps compared to standard FourStroke engines. The power band is optimized for high RPMs.

How is the Racing series maintained?

Racing engines require a special maintenance protocol suitable for high-performance use. Beginning and end-of-season services should be performed at authorized Mercury service centers. Oil quality and change intervals may be more frequent than for standard FourStroke engines.

Which boat and inflatable boat brands is the Racing 150 L compatible with?

Mercury outboard engines are compatible with many fiberglass, aluminum, and inflatable boat models due to their universal transom clamp or transom mounting system. The only criteria are your boat's transom height of 508 mm (20") and the maximum engine power approved by the manufacturer. You can get compatibility confirmation from Clever Marin by sharing your boat model.

Related Products and Categories

• Mercury Outboard Engines
• Mercury Marine Products
• Mercury Spare Parts
• Mercury Racing 150–300 HP
• Mercury Racing 350–500 HP
• Outboard Engines
• Boat Engines
• Maintenance Kit
• Impeller
• Anode

Is This the Right Configuration for Your Boat?

Share your boat model, transom height, and intended use — let's confirm together if the Mercury Racing 150 L engine is suitable for your boat and ensure the correct shaft selection.