Mercury 15EHPT 15HP Outboard – 15in Shaft, Tiller, Power Trim, EFI
No extra bulk, Mercury 15EHPT produces 15 horsepower. Rigging includes a 15-inch shaft and tiller steering. EFI rounds out the build. Popular among owners of small aluminum boats and light jon boats.
- 15 horsepower, ready to run
- Shaft length 15 inches
- Tiller steering, simple setup
- Power trim adjusts running angle
- EFI fuel delivery system
Description
With tiller steering, electric start, power trim, and EFI, the Mercury 15EHPT is a 15 HP outboard with a 15-inch shaft. It can be evaluated for compatible short-transom fishing, utility, skiff, or tender hulls when their capacity label, installed engine-weight limit, battery system, transom structure, and tiller operating clearance support the complete configuration.
Power trim changes engine-angle adjustment but does not create a universal hull fit or a stated speed result. Boat performance still depends on hull form, beam, dry weight, passengers, fuel, gear, propeller, engine height, trim position, water conditions, and RPM. Confirm the required electrical system, battery capacity, transom height, and Mercury rigging specifications before selecting this EFI tiller outboard.
Key Features of Mercury 15EHPT
- The 15-inch shaft requires a compatible short-shaft transom and verified engine-height installation for the vessel.
- Tiller steering requires adequate cockpit clearance and operator access for throttle, steering, and trim controls.
- Electric start requires matched battery capacity, wiring, charging arrangement, and electrical rigging before operation.
- Power trim provides an engine-angle adjustment system requiring compatible controls and supported electrical installation.
- Electronic fuel injection identifies the documented fuel-delivery configuration for this 15 HP outboard engine.
- A 15 HP rating requires a vessel capacity plate that permits the installed engine output.
Why Choose Mercury 15EHPT
Choose this configuration when a short-transom tiller boat requires electric start, power trim, and EFI within its approved 15 HP capacity. It can be considered for some fishing boats, skiffs, tenders, and utility hulls, but correct fit depends on transom geometry, battery capacity, cockpit clearance, engine weight, control access, and the manufacturer’s rigging requirements rather than boat length alone.
- Matches approved short-transom hulls requiring tiller control, electric start, and power trim.
- Requires battery, wiring, cockpit clearance, engine weight, and capacity verification before rigging.
- Separates EFI and trim features from unsupported speed or fuel-use expectations.
Warranty, Support and Maintenance
For eligible Mercury FourStroke outboards used for pleasure purposes in the United States, Mercury lists a 3-Year Limited Warranty and 3-Year Corrosion Warranty. Commercial use receives a 1-Year Limited Warranty without corrosion coverage. Eligibility depends on current Mercury terms, registration, and actual use classification. Follow the applicable Operation, Maintenance and Warranty manual for scheduled service, corrosion-prevention measures, gearcase checks, battery-system inspection, and maintenance records. Mulmotor provides pre-purchase product guidance and order-related customer support.
Mercury 15HP 15EHPT EFI Specs
| Brand | Mercury Marine |
| Full Model Code | 15EHPT |
| Country of Origin | USA / Japan Componentry |
| Engine Family/Series | FourStroke Portable |
| Engine Type | Inline 2 / SOHC / 4-Stroke |
| Displacement | 0.33 Liters (333 cc) |
| Horsepower | 15 HP @ 5000 RPM |
| Full Throttle RPM Range | 4500 - 5500 RPM |
| Fuel Induction System | Electronic Fuel Injection (EFI) |
| Alternator Output | 12 Amps |
| Gear Ratio | 2.15:1 |
| Shaft Length | 15" (Short) |
| Dry Weight | 52 kg (115 lbs) |
| Bore x Stroke | 61 x 57 mm |
| Starting & Steering System | Electric Start w/ Tiller Handle |
| Trim/Tilt Method | Power Tilt |
| Standard Warranty | 3-Year Limited Pleasure |
| Application | Modern EFI tiller with effortless power tilt for shallow water fishing. |














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