I'd be curious as to what the peak torque rating is. That is more telling than the HP rating.
Hey 1811Cub-- Here are the general specifications of the DuroMax XP18HPE:
Displacement 439cc
Fuel Type ≥87 octane, ≤10% ethanol, unleaded gasoline
Dry Weight 77 lbs
Maximum Torque 27 ft. lb @ 2500 rpm
Compression Ratio 8.5:1
Bore X Stroke 92 mm x 66 mm
Engine Oil Capacity 37.2 oz. (1.1 L)
Fuel Tank Capacity 1.7 gal.
Lowest Idling Speed 1800 rpm ± 300 rpm
Dimensions LENGTH 20 in.
WIDTH 18 in.
HEIGHT 19 in.
Engine Type 4-Stroke OHV Forced-Air
Ignition System Non-contact transistor
Lubrication Mode Splash
Starting Type Electric / Recoil
Shaft Rotation Counter-clockwise
Shaft Size 1” diameter, 2-3/4” long, 1/4” keyway
Shaft End 3/8” size 24 UNF - drilled and tapped
Center of Shaft to Base 5”
Bearing Type Stainless steel ball bearing
Cylinder Sleeve Type Cast iron sleeve
Fuel Delivery System Carburetor