Mercury 15ELH 15HP Outboard – 20in Shaft, Tiller, Electric Start
For open water, Mercury 15ELH keeps pace at 15 horsepower. The 20-inch shaft works with tiller steering. Popular among owners of small aluminum boats and light jon boats.
- Rated at 15 horsepower
- 20-inch shaft, standard fit
- Tiller steering, simple setup
- Electric start, push-button ignition
- Light enough for easy mounting
Description
Using a 20-inch shaft, the Mercury 15ELH is a 15 HP tiller outboard with electric start for boats whose builder specifies a long-shaft transom. It can be evaluated for small aluminum fishing boats, skiffs, utility hulls, tenders, or workboats only when their capacity plate, engine-weight limit, battery system, and tiller clearance support the installation.
A 15 to 18 foot length range is shopping context, not a fitment guarantee for every small boat. Actual speed depends on hull form, beam, dry weight, passengers, fuel, gear, propeller, mounting height, trim, water conditions, and engine RPM. Confirm transom measurement, tiller operating space, capacity rating, battery location, and steering control before rigging.
Key Features of Mercury 15ELH
- The 20-inch shaft requires a compatible long-shaft transom and correct mounting height during engine installation.
- Tiller steering requires clear operator access for steering, throttle, shift, and emergency control movement.
- Electric start requires compatible battery capacity, wiring, charging provisions, and protected electrical connections before operation.
- A 15 HP rating requires verification that vessel capacity and installed engine-weight limits permit this configuration.
- Long-shaft rigging requires measurement at the mounting location rather than relying on boat length alone.
Why Choose Mercury 15ELH
Choose this outboard when a compatible long-transom boat requires tiller steering and electric start rather than remote controls. It may suit some fishing, skiff, tender, utility, and workboat hulls, but length does not determine engine fit. The correct selection depends on transom height, capacity plate, engine weight, battery placement, cockpit clearance, and normal onboard load.
- Matches approved long-transom boats requiring a 20-inch tiller outboard configuration.
- Requires battery placement, capacity, steering clearance, and transom verification before installation.
- Links expected speed to hull, load, propeller, mounting height, and conditions.
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 product-information support before purchase and assistance with order-related questions.
Mercury 15HP 15ELH FourStroke Specs
| Brand | Mercury Marine |
| Full Model Code | 15ELH FourStroke |
| Engine Type | Inline 2-Cylinder EFI |
| Displacement | 333 cc |
| Horsepower | 15 HP |
| Full Throttle RPM Range | 5700-6200 RPM |
| Fuel Induction System | Electronic Fuel Injection (EFI) |
| Alternator Output | 12 Amps |
| Gear Ratio | 2.15:1 |
| Shaft Length | L (20 inch) |
| Dry Weight | 51 kg |
| Starting & Steering System | Electric Start / Tiller Handle |
| Trim/Tilt Method | Manual Tilt |
| Features | Adjustable Tiller Angle, Easy-Starting EFI |
| Application | Utility Aluminum Fishing Boats, Commercial Skiffs |














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