Mercury 300HP 300L Verado Outboard – 20″ Shaft
The 300-horsepower Mercury 300L Verado uses a 20-inch shaft for compatible lower-transom configurations. Its Verado outboard platform supports strong propulsion, while the shaft length helps maintain effective propeller placement and thrust delivery during cruising.
Description
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Mercury 300HP 300L Verado Outboard Specs
| Brand | Mercury Marine |
| Full Model Code / Part Number | 300L Verado (20" Shaft) |
| Country of Origin | USA |
| Engine Type & Configuration | 4-Stroke Inline 6 (Supercharged with Verado SmartCraft) |
| Horsepower Output (HP / kW) | 300 HP (221 kW) |
| Displacement (cc / cu in) | 2600 cc (158 cu in) |
| Bore x Stroke (mm / in) | 82.0 x 82.0 mm (3.23 x 3.23 in) |
| Maximum RPM Range (Full Throttle Operating Range) | 5800 - 6400 RPM |
| Fuel Induction System | Sequential Multi-Port Electronic Fuel Injection (EFI) with Supercharger |
| Ignition System | SmartCraft ECM 0d Digital Inductive |
| Starting System | Electric Start with SmartStart Push Button |
| Steering System | Electro-Hydraulic Power Steering |
| Trim & Tilt System | Smart Craft Power Trim and Tilt |
| Gear Ratio & Shift Mechanism | 1.85:1 (Forward - Neutral - Reverse) |
| Exhaust System | Through Propeller |
| Recommended Transom Shaft Length | L: 20 inches |
| Alternator / Charging Output (Amps / Watts) | 70 Amp (Idle Charge Battery Management System) / 882 Watts |
| Recommended Fuel Grade & Oil Type | Regular Unleaded (Min. 87 Octane) / Mercury 4-Stroke Outboard Oil NMMA FC-W 25W-40 |
| Dry Weight (kg / lbs) | 268 kg / 600 lbs |
| Standard Warranty | 3 Years Limited Recreational Warranty |
Common Question of Mercury 300L Verado
Is the 300L Verado fuel injected?
Yes. The Mercury 300L Verado uses an electronic fuel injection system within its applicable four-stroke powerhead. Its 20-inch shaft suits a matching transom, while Verado controls, steering, battery, wiring, and gauges require compatibility. Verify package contents before installing this high performance outboard motor.
What transom fits its shaft?
A 20-inch transom is the intended match for this 300L Verado model. Measure the boat before purchase because incorrect shaft length can affect cooling-water pickup, gearcase depth, propeller immersion, steering response, and trim. Correct measurement supports a properly fitted ready to bolt marine outboard package.
What should buyers verify?
Verify engine weight, maximum horsepower, transom strength, shaft length, Verado controls, steering hardware, battery capacity, wiring, fuel supply, gauges, and package contents. Confirm Mercury’s installation requirements before repowering, because the 20-inch shaft and electronic systems must match the boat’s structure and rigging.
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