Stationary Motor 23HP V Twin Petrol Engine 670cc Inc Muffler E-Start THORNADO

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Thornado 23HP (670cc) Stationary Motor Petrol Engine E-Start (25.4mm Horizontal Key Shaft / Q-Type)


The Thornado 670cc V-Twin stationary engine offers higher power, greater fuel efficiency and stable performance than similar displacement standard twins engine. The horizontal shaft is ball-bearing mounted which make this engine an ideal replacement for most standard engine configurations. This engine features a durable cast iron cylinder liner, forged hardened steel crankshaft making it the perfect engine for variety of applications including water pumps, Go-karts, generator, wood chippers, Pressure Washers, Bench saws & other Agricultural uses. 



  • V-Twin Thornado 23HP (670cc), 4 Stroke OHV Engine
  • EPA emission certified engine
  • Steel forged and hardened crankshaft.
  • Durable cast iron cylinder liner withstands wear
  • High quality carburettor for easy starting and operation
  • Smooth running with minimal vibration
  • Low oil sensor shuts down engine when oil reaches a level that is too low for safe operation
  • Fuel shut off valve for safe transport
  • High power-to-weight ratio
  • 12 Months Australia Warranty


Suitable Applications

  • Water pump
  • Air compressors
  • Mowers
  • Log spliter
  • Go-Kart
  • Generator
  • Pressure washer
  • Chippers / shredders
  • Agricultural uses


Displacement 670cc
Engine Type 4 Stroke OHV Air Cooled Engine
Engine Model TH-670QE (23HP)
Starting System Electric
Max Power HP / Rpm 23HP / 4000 Rpm
Fuel Type Unleaded Petrol
Fuel Tank Capacity N/A
Oil Type SAE10w-30 / SAE30
Oil Capacity 1.1L
Fuel Consumption 374g/kw*h
PTO Shaft Rotation Counter Clockwise
Bore x Stroke 78 mm x 70 mm
Compression Ratio 8.5 : 1
Shaft Size 25.4 mm
Shaft Length 72.2 mm
Shaft Type Horizontal Key Shaft
Keyway 6.35 mm
Spark Plug Compatible NGK® BP-5ES; Torch® F6TC
Spark Plug Gap 0.7 - 0.8mm
Valve Clearance - Intake 0.15 mm
Valve Clearance - Exhaust 0.20 mm
Mounting Pattern (L x W) 195.5mm  x (86-102 mm)
Product Dimension (L X W x H) 500 x 430 x 500 mm
Product Weight 54 kg




Model # TH-670QE
Brand Thornado
Shipping Weight 55.0000kg
Shipping Width 0.640m
Shipping Height 0.770m
Shipping Length 0.520m
Shipping Cubic 0.216320000m3
Unit Of Measure Unit


The warranty is provided by THORNADO (ABN: 83 146 014 324) ("The Company") for the customer sole benefit. To be eligible to make a claim under this warranty, customer must retain the purchase receipt. The warranty applies only to the original retail purchaser. The company guarantees to the buyer that the equipment will be free from defects caused by faulty materials or poor workmanship for a period no longer than twelve months from the date of delivery.

Warranty Period

The warranty period for the Thornado equipment is 12 months commences on the date of sale of the equipment. 

As far as law permits, the Warranty Period will not be extended, renewed, or transferable with subsequent resale, repair or replacement of the item. Repaired parts will be warranted for the remainder of the original Warranty Period, or for the thirty (30 days) from the date of repair, whichever is longer.

Please click here for more detail about our warranty. 


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