$13,144.00
150 HP four-stroke, 2500cc inline four-cylinder engine
20″ long shaft with remote mechanical steering
Electronic Fuel Injection (EFI) for reliable starts
Lightweight at 455 lbs with low-vibration mounts
3.2-gallon external fuel tank
Corrosion-resistant for freshwater/saltwater use
Electric start with power trim & tilt
Adjustable throttle and steering tension
The Mercury 150L is a robust four-stroke outboard motor designed for medium boats such as aluminum fishing boats, pontoons, inflatables, and cruisers up to 22-24 feet. Featuring a 20-inch long shaft, it weighs 455 lbs, offering a balance of power and versatility in its 150 HP class. The 2500cc (152.6 cubic inch) inline four-cylinder engine with Electronic Fuel Injection (EFI) and 16-valve DOHC design delivers exceptional low-end torque for quick planing and a full throttle range of 5000-6000 RPM. Equipped with remote mechanical steering for precise control, electric start for effortless ignition, and power trim & tilt for easy adjustments. The motor features a 3.2-gallon external fuel tank, low-vibration mounts for smooth operation, and a 60-amp alternator to support electronics. Built for durability in freshwater and saltwater, it uses low-copper aluminum alloys, stainless steel components, and a multi-layered priming and painting process for superior corrosion resistance. With reliable starting, instant throttle response, and fuel efficiency, the 150L is ideal for versatile, worry-free boating.
| Engine | 4-stroke, DOHC | Inline 4-cylinder | 2500cc / 152.6 cu in | 150 HP @ 5000-6000 RPM | EFI, 16-valve | Digital CD ignition | Water-cooled |
| Shaft | 20″ long | Corrosion-resistant | 10.6″ x 11.8″ 3-blade prop | Shallow water drive | Power trim & tilt | Standard rotation | Salt/freshwater rated |
| Controls | Remote mechanical steering | Electric start | Adjustable throttle | Power trim & tilt | Steering tension control | Safety lanyard | Engine alert system |
| Charging | 60 amps / 756 watts | Low-speed charging | Regulated charging | Supports electronics | Optional alternator | Maintenance-free | Battery required |
| Weight | 455 lbs / 206 kg | Lightweight design | Balanced weight | Portable for class | Minimal drag | Easy transport | Transom mount |
| Performance | 5000-6000 RPM range | Fuel-efficient | Low emissions | High torque | Quick acceleration | Quiet operation | Top speed 45-50 mph |
| Compatibility | 22-24 ft boats | Aluminum fishing boats | Pontoons | Inflatables | 3.2-gal external tank | Aluminum prop | Salt/freshwater rated |
| Dimensions | 20″ shaft length | 16.7″ W | 41.3″ H | 27.2″ L | Corrosion-resistant | Transom mount | Power tilt |
| Engine | 4-stroke, DOHC | Inline 4-cylinder | 2500cc / 152.6 cu in | 150 HP @ 5000-6000 RPM | EFI, 16-valve | Digital CD ignition | Water-cooled |
| Shaft | 20″ long | Corrosion-resistant | 10.6″ x 11.8″ 3-blade prop | Shallow water drive | Power trim & tilt | Standard rotation | Salt/freshwater rated |
| Controls | Remote mechanical steering | Electric start | Adjustable throttle | Power trim & tilt | Steering tension control | Safety lanyard | Engine alert system |
| Charging | 60 amps / 756 watts | Low-speed charging | Regulated charging | Supports electronics | Optional alternator | Maintenance-free | Battery required |
| Weight | 455 lbs / 206 kg | Lightweight design | Balanced weight | Portable for class | Minimal drag | Easy transport | Transom mount |
| Performance | 5000-6000 RPM range | Fuel-efficient | Low emissions | High torque | Quick acceleration | Quiet operation | Top speed 45-50 mph |
| Compatibility | 22-24 ft boats | Aluminum fishing boats | Pontoons | Inflatables | 3.2-gal external tank | Aluminum prop | Salt/freshwater rated |
| Dimensions | 20″ shaft length | 16.7″ W | 41.3″ H | 27.2″ L | Corrosion-resistant | Transom mount | Power tilt |
High-Performance Engine: 2500cc inline four-cylinder engine with EFI and 16-valve DOHC design provides strong torque, quick acceleration, and fuel efficiency for medium boats.
Remote Mechanical Steering: Offers precise control with an adjustable steering system, enhancing maneuverability for diverse boating conditions.
Lightweight Design: At 455 lbs, it’s optimized for portability while delivering robust power for demanding applications.
Reliable Starting: EFI and electric start system ensure effortless ignition in all conditions, with instant throttle response for smooth operation.
Corrosion Resistance: Low-copper aluminum alloys, stainless steel water pump housing, zinc-coated passages, and sacrificial anodes ensure durability in harsh marine environments.
Smooth Operation: Wishbone mounts and tuned intake reduce vibration, while a through-propeller-hub exhaust minimizes noise for a comfortable ride.
Fuel Efficiency: EFI optimizes fuel delivery, paired with a 3.2-gallon external tank for extended range, using 87-octane fuel with up to 10% ethanol.
Safety Features: Engine alert system monitors low oil pressure, overheating, over-revving, and sensor failure, with a safety lanyard for emergency stops.
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Order Processing & Shipping Times
Orders are processed and shipped within 2-5 business days (excluding weekends and holidays). All items are delivered within 10 business days from the date of shipment. As your delivery date nears, the shipper will contact you to coordinate a seamless drop-off.
Before ordering, please verify your shipping address to prevent delays. Your satisfaction is our priority, and we’re committed to making your shopping experience smooth and enjoyable. Have questions? Email us at sales@faa-marine.com—we’re here to help!
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5 reviews for Mercury 150hp 20″ Shaft | 150L
The 150L is a powerhouse on my 20-foot bass boat—455 lbs is light for this class, and the 20″ shaft with power trim handles flats perfectly. EFI starts instantly without a battery, even in chilly dawns. Trolled for stripers all day on under 7 gallons, hitting 42 mph at 5800 rpm solo.
Rules coastal runs on my rig—the 150L’s EFI for instant torque, under 6 gph cruise extends range, hits 41 mph with gear. Ultra-quiet with zero vibes for all-day comfort. 85 hours in salt, black finish holds up—lightest, most maintainable 150hp out there!
Trailering this 455-lb powerhouse is easy, and on the water, the 150L dominates. Battery-free starts, low-RPM thrust for hefty hulls, EFI smarts for efficiency. Tops 39 mph loaded, silent inline-4 for serene vibes. Durable finish for tough conditions—Mercury’s 150hp redefines power-to-weight!
Upgraded to this 150hp for my 22-foot pontoon, and it’s a total game-changer. Electric start via EFI is flawless, and the SOHC engine sips fuel at about 9 mpg cruising with six aboard. Pushes 33 mph loaded on the 20″ shaft, whisper-quiet for family cruises. Durable finish holds up in brackish water—lightest 150hp I’ve run, no vibes after 45 hours!
Family favorite on our pontoon—the 150hp’s power trim and EFI make it easy for all, torque pulls skiers without bogging. Sips gas for long outings, trolls steady at low RPMs. The 20″ shaft and quiet four-stroke keep rides plush. Slight ding: remote wiring took extra setup time, but performance matches V6s with 3L displacement.