Mercury 225HP 225L DTS Outboard – 20″ Shaft
With 225 horsepower, DTS controls, and a 20-inch shaft, the Mercury 225L DTS supports compatible lower-transom boats. Digital operation enables responsive commands, while correct shaft matching helps maintain propeller alignment and efficient thrust delivery.
Description
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Mercury 225HP 225L DTS Outboard Specs
| Brand | Mercury Marine |
| Full Model Code / Part Number | 225L DTS (20" Shaft) |
| Country of Origin | USA |
| Engine Type & Configuration | 4-Stroke V6 (DOHC with 4-Valves per Cylinder) |
| Horsepower Output (HP / kW) | 225 HP (168 kW) |
| Displacement (cc / cu in) | 3400 cc (208 cu in) |
| Bore x Stroke (mm / in) | 92.0 x 86.0 mm (3.62 x 3.38 in) |
| Maximum RPM Range (Full Throttle Operating Range) | 5000 - 5800 RPM |
| Fuel Induction System | Electronic Fuel Injection (EFI) Computer Controlled with Sequential Multi-Port |
| Ignition System | SmartCraft ECM 0d Digital Inductive |
| Starting System | Electric Start with SmartStart Push Button |
| Steering System | Electro-Hydraulic Power Steering Compatible |
| 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) | 85 Amp (Idle Charge Battery Management System) / 1071 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) | 216 kg / 475 lbs |
| Standard Warranty | 3 Years Limited Recreational Warranty |
Common Question of Mercury 225L DTS
What does 225L DTS mean?
It identifies a Mercury 225-horsepower outboard with Digital Throttle and Shift and a 20-inch shaft. DTS requires compatible electronic controls and rigging components. Confirm the fuel system, steering, battery, wiring, gauges, transom height, and package contents before installing this high performance outboard motor configuration.
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 shifting and throttle response operate correctly from the helm.
What shaft length does it use?
The shaft length is 20 inches, intended for a matching transom height. Measure the hull according to Mercury’s instructions before mounting. Correct shaft positioning supports cooling-water pickup, gearcase depth, propeller immersion, steering response, and trim. Proper measurement supports this ready to bolt marine installation.













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