Mercury 175HP 175L DTS Outboard – 20″ Shaft
The 175-horsepower Mercury 175L DTS uses a 20-inch shaft for compatible lower-transom boats. Digital Throttle and Shift supports precise engine commands, while proper shaft matching helps maintain propeller depth and efficient thrust transfer.
Description
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Mercury 175HP 175L DTS Outboard Specs
| Brand | Mercury Marine |
| Full Model Code / Part Number | 175L DTS (20" Shaft) |
| Country of Origin | USA |
| Engine Type & Configuration | 4-Stroke V6 (DOHC with 4-Valves per Cylinder) |
| Horsepower Output (HP / kW) | 175 HP (129 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 175L DTS
What does 175L DTS mean?
It identifies a Mercury 175-horsepower outboard with Digital Throttle and Shift and a 20-inch shaft. DTS requires compatible electronic controls and rigging components. Confirm fuel system, steering, battery, wiring, gauges, transom height, and package contents before installing this high performance outboard motor on a suitable boat.
What transom fits its shaft?
A 20-inch transom is the intended match for the 175L DTS configuration. Measure the hull before purchase because incorrect shaft length can affect cooling-water pickup, gearcase depth, propeller immersion, steering response, and trim. Correct measurements support a properly installed ready to bolt marine outboard package.
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. Confirm the complete DTS system before installation so shifting and throttle response operate correctly from the helm.
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