Marine – Blue Ocean. Green Technology.

Welcome to LEHR UK Marine. The world’s first propane powered outboard engines. LEHR introduced it’s 2.5hp, 5hp, 9.9hp and 15hp engines in 2012 and has already received numerous awards for their efforts towards keeping our oceans clean.

2.5 hp

2.5hp

Technical Specifications

Engine Type Propane Powered 4 Stroke OHV
Horsepower Rating 2.5hp (1.8kW)
Displacement 4.39cu in / 72cc
Bore X Stroke 2.12″ X 1.37″ / 54mm X 31.5mm
Cylinders 1
Full Throttle RPM Range 4000 – 4500 RPM
Ignition System CDI Ignition
Starting System Manual
Fuel Propane (110 Octane)
Carburetion No Choke / No Priming
Lubrication Wet Sump
Control System Tiller Handle
Exhaust System Above Propeller
Cooling System Water / Thermostatic Control
Trim Positions 5
Gear Shift F – N
Gear Ratio 2.08
Shaft Length 15″
Standard Prop 7.25″ x 6″ 3 Blade Aluminium
Weight 37.4lbs / 16.96kg
Fuel Tank Type
On Board Twist ‘n Go 16.4oz Propane Canister
Remote (Optional) 10lbs and 20 lbs composite tanks
Recommended Oil 4 Stroke 10W-30
Engine Oil Capacity 0.37 US qt (0.35l)
Warranty 3 Year Limited Warranty
C.A.R.B. Rating 3 Star Ultra Low

5.0 hp

5.0hp

Technical Specifications

Engine Type Propane Powered 4 Stroke OHV
Horsepower Rating 5hp (3.6kW)
Displacement 6.83cu in / 112cc
Bore X Stroke 2.32″ X 1.61″ / 59mm X 41mm
Cylinders 1
Full Throttle RPM Range 4000 – 4500 RPM
Ignition System CDI Ignition
Starting System Manual
Fuel Propane (110 Octane)
Carburetion No Choke / No Priming
Lubrication Wet Sump
Control System Tiller Handle
Exhaust System Above Propeller
Cooling System Water / Thermostatic Control
Trim Positions 5
Gear Shift F – N – R
Gear Ratio 2.08
Shaft Length LP5.0S 15″
LPS5.0L 20″
Standard Prop 7.5″ x 7″ 3 Blade Aluminium
Weight 48.4lbs / 21.8kg
Fuel Tank Type
On Board Twist ‘n Go 16.4oz Propane Canister
Remote (Optional) 10lbs and 20 lbs composite tanks
Recommended Oil 4 Stroke 10W-30
Engine Oil Capacity 0.53US qt (0.5l)
Warranty 3 Year Limited Warranty
C.A.R.B. Rating 3 Star Ultra Low

9.9 hp

9.9hp

Technical Specifications

Engine Type Propane Powered 4 Stroke SOHV
Horsepower Rating 9.9hp (7.2kW)
Displacement 12.94cu in / 212cc
Bore X Stroke 2.32″ X 1.61″ / 59mm X 41mm
Cylinders 2
Full Throttle RPM Range 4500 – 5500 RPM
Ignition System CDI Ignition
Starting System Manual or Electric
Fuel Propane (110 Octane)
Carburetion No Choke / No Priming
Lubrication Wet Sump / Pressure Lubricated
Control System Tiller Handle or Remote
Exhaust System Through Prop
Cooling System Water / Thermostatic Control
Trim Positions 5
Gear Shift F – N – R
Gear Ratio 2.08
Alternator Output 6 amp / 80W Electric
6 amp / 80W Manual
(Requires Optional Regulator)
Shaft Length 15″ (S), 20″ (L)
Standard Prop 8″ x 8.5″ 3 Blade Aluminium
Weight 88lbs / 39.8kg
Fuel Tank Type Remote Liquid Draw Tanks
Remote 10lbs and 20 lbs composite tanks
Recommended Oil 4 Stroke 10W-30
Engine Oil Capacity 0.85 US qt (0.8l)
Warranty 3 Year Limited Warranty
C.A.R.B. Rating 3 Star Ultra Low

15 hp

15hp

Technical Specifications

Models LP15S (Manual Start, Tiller)

LP15L (Manual Start, Tiller)

LP15ES (Electric Start, Tiller)

LP15ES-IB (Electric Start, Tiller)

LP15EL (Electric Start, Tiller)

LP15EL-IB (Electric Start, Tiller)

LP15ERS (Electric Start, Remote)

LP15ERL (Electric Start, Remote)

Engine Type Propane Powered 4 Stroke SOHC
Horsepower Rating 15 hp (11 kW)
Displacement 19.7 cu in / 323 cc
Bore X Stroke 2.32” X 2.32” / 59 mm X 59 mm
Cylinders 2
Full Throttle RPM Range 4500 – 5500 RPM
Ignition System CDI Ignition
Starting System Manual or Electric (E)
Fuel Propane (110 Octane)
Carburetion No Choke / No Priming
Lubrication Wet Sump / Pressure Lubricated
Control System Tiller Handle or Remote
Exhaust System Through Prop
Cooling System Water / Thermostatic Control
Trim Positions 5
Gear Shift F – N – R
Gear Ratio 2.08
Alternator Output 6 amp / 80W Electric 6 amp / 80W Manual (Requires Optional Regulator)
Shaft Length 15″ (S), 20″ (L)
Standard Prop 9.5″ x 11″ 3 Blade Aluminium
Weight LP15S: 110 lbs / 49.9 kg

LP15L: 114 lbs / 52.0 kg

LP15ES: 120 lbs / 54.4 kg

LP15ES-IB: 122 lbs / 55.3 kg

LP15EL: 124 lbs / 56.2 kg

LP15EL-IB: 126 lbs / 57.2 kg

LP15ERS: 118 lbs / 53.5 kg

LP15ERL: 122 lbs / 55.3 kg

Fuel Tank Type 31 lbs Liquid Draw Composite Tanks
Recommended Oil 4 Stroke 10W-30
Engine Oil Capacity 1.06 US qt (1.0l)
Warranty 3 Year Limited Warranty
C.A.R.B. Rating 3 Star Ultra Low