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9.9hp Propane Powered Outboard Engine, Long Shaft, Internal Electric Start


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Model # 14995989 | Mfg # LP9.9EL-IB
This electric start LEHR 9.9hp motor present an environmentally-friendly and cost-effective alternative to gasoline. Overhead-valve four-stroke engines run on 110-octane propane, and are eco-friendly with zero evaporative emissions, because propane, unlike gasoline, is not listed as a marine pollutant by the DOT. Propane is 50-times cleaner than gas, with 96% less carcinogenic compounds, 60-70% less smog-producing hydrocarbons and no Class I or II ozone-depleting chemicals.
The engine is domestically produced, reducing our dependency on foreign oil. LEHR outboards are easy starting with no choke and no priming, reliable with no carburetor gum-up or winterizing, economical because propane costs roughly half as much as gas. Conveniently connects to remote tanks and are complete with a 10' hose assembly. Internal starter battery recharges while the engine is running.  

Suggested Tank Options:

Composite Tanks

Standard Aluminum Tanks 


  • Engine Type: 4-stroke SOHV
  • Engine Displacement: 323cc
  • Shaft Length: 20"
  • Weight: 101.7lb.
  • Fuel: Propane (LPG)
  •  Fuel Tank Type: Remote tank
  • Running Time: 11lb. remote tank: Throttle @ 5000rpm: approx. 2 1/2 hours; Throttle @ 3000rpm: approx. 6 hours - 17lb. remote tank: Throttle @ 5000rpm: approx. 4 hours; Throttle @ 3000rpm: approx. 9 hours
  • Exhaust System: Through prop
  • Start: Electric (internal battery)
  • Gearing: Forward, Neutral, Reverse
  • Gear Ratio: 2.08:1
  • Warranty: Three years

LEHR 9.9 Owner's Manual

LEHR Quick Start Guide 9.9

Advantages of Using Propane

Propane Run Time



9.9hp Propane Powered Outboard Engine, Long Shaft, Internal Electric Start

Horsepower 9.9 Horsepower
Length Long Shaft
20 Inch Shaft
Type Propane Outboards
Warranty Details Three Years
Weight 101.7 Pounds

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