Mercury 250HP 250XXL DTS Outboard – 30″ Shaft
The 250-horsepower Mercury 250XXL DTS uses a 30-inch shaft and Digital Throttle and Shift controls. Electronic command input supports responsive operation, while the shaft dimension suits compatible high-transom boats and helps maintain effective propeller alignment.
Description
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Mercury 250HP 250XXL DTS Outboard Specs
| Brand | Mercury Marine |
| Full Model Code / Part Number | 250XXL DTS (30" Shaft) |
| Country of Origin | USA |
| Engine Type & Configuration | 4-Stroke Inline 6 (Supercharged with Verado SmartCraft) |
| Horsepower Output (HP / kW) | 250 HP (184 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 | XXL: 30 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) | 275 kg / 606 lbs |
| Standard Warranty | 3 Years Limited Recreational Warranty |
Common Question of Mercury 250XXL DTS
What does 250XXL DTS mean?
It identifies a Mercury 250-horsepower outboard with Digital Throttle and Shift and a 30-inch shaft. DTS requires compatible electronic controls and rigging components. Confirm the electronic fuel injection system, steering, battery, wiring, gauges, transom height, and package contents before installing this high performance outboard motor.
Does it require digital controls?
Yes. Digital Throttle and Shift requires compatible electronic controls, wiring harnesses, gauges, battery capacity, steering equipment, and correct rigging. Conventional mechanical cables may not provide the intended engine interface. Verify the complete DTS system before installation so throttle and gear-selection commands operate correctly from the helm.
What shaft length does it use?
The shaft length is 30 inches, intended for a matching tall transom. Measure the hull according to Mercury’s instructions before mounting. Correct shaft positioning supports cooling-water pickup, gearcase clearance, propeller immersion, steering response, and trim. Proper measurement supports this ready to bolt marine installation.
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