Mercury 15EH 15HP Outboard – 15in Shaft, Tiller, Electric Start
Mercury 15EH moves boats with 15 horsepower. A 15-inch shaft pairs with tiller steering. Well matched to small aluminum boats and light jon boats. Common on small aluminum boats and light jon boats.
- Rated at 15 horsepower
- Fits 15-inch transom height
- Tiller steering, simple setup
- Electric start, push-button ignition
- Light enough for easy mounting
Description
Using a 15-inch shaft and tiller steering, the Mercury 15EH is a 15 HP outboard with electric start. It can be evaluated for a compatible short-transom jon boat, small aluminum fishing boat, skiff, tender, or utility hull only when the vessel builder permits the installed horsepower, engine weight, battery arrangement, and tiller operating clearance.
Do not use a generic 14 to 17 foot length range as proof that this engine fits a particular hull. Beam, hull construction, dry weight, passenger load, fuel, gear, transom height, and steering space can differ across similarly sized boats. Actual speed depends on propeller selection, engine height, trim, loading, water conditions, and operating RPM after proper installation.
Key Features of Mercury 15EH
- The 15-inch shaft requires a short-shaft transom matched to the specified engine mounting-height arrangement.
- Tiller steering requires suitable cockpit space and operator reach for safe steering and throttle control.
- Electric start requires compatible battery capacity, electrical wiring, and starting-system rigging before vessel operation.
- A 15 HP rating requires confirmation that the boat capacity plate permits the engine output.
- Short-transom installation requires review of engine weight, load distribution, propeller choice, and operating conditions.
Why Choose Mercury 15EH
Choose this outboard when the vessel calls for a short-shaft tiller engine with electric start and has enough cockpit space for proper operation. It may be relevant to certain jon boats, skiffs, small aluminum fishing boats, tenders, and utility hulls. Final selection depends on capacity rating, transom strength, battery placement, engine weight, expected payload, and propeller setup.
- Matches approved short-transom hulls requiring tiller steering and electric-start capability.
- Requires cockpit clearance, battery placement, capacity, and transom-strength verification before rigging.
- Connects real speed to hull characteristics, payload, propeller, engine height, and water 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, and maintenance records. For product details and order support, Mulmotor offers assistance before your purchase is placed.
Mercury 15HP 15EH FourStroke Specs
| Brand | Mercury Marine |
| Full Model Code | 15EH 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 | S (15 inch) |
| Dry Weight | 49 kg |
| Starting & Steering System | Electric Start / Tiller Handle |
| Trim/Tilt Method | Manual Tilt |
| Features | Ambidextrous Tiller Handle, Battery-Free EFI |
| Application | Aluminum Boats, Small Inflatables, Jon Boats |














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