GX25NT S3 25cc All Angle Engine (Red)

Regular Price $245.52 Sale Price $232.99
  • Honda
  • 647140
Usually ships in 3-5 business days. We will contact you if ETA is longer.
Free shipping to lower 48 states.
Cannot ship to California.
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           COMMON APPLICATIONS

  • Common applications include: Commercial lawn and garden equipment, tillers/cultivators, construction/industrial, agricultural equipment, and water pumps.

    ADVANCED TECHNOLOGY
  • 4-stroke - no fuel/oil mixing
  • Full 360° "any-side-up" operation - use and store in any position
  • Exclusive rotary-slinger lubrication system
  • The world's lightest OHC engine

    FUEL EFFICIENT, HIGH OUTPUT OPERATION
  • Approximately half the operating cost of comparable 2-stroke engines
  • Efficient port configuration and large diameter valves maximize power output
  • Lighter, more rigid valve train
  • Carburetor equipped with accelerator pump for fast, easy acceleration

    SMOOTH PERFORMANCE
  • Precision engineered components result in lower vibration
  • Lighter piston minimizes vibration
  • Ball bearing supported crankshaft for greater stability
  • Roller bearing supported connecting rod

    EXCEPTIONALLY QUIET
  • Belt-driven OHC design reduces mechanical noise
  • Large capacity, multi-chamber exhaust system
  • Sophisticated air intake system

    PROVEN RELIABILITY
  • High quality materials, fit, and finish
  • Lifetime timing belt design
  • Integrated fuel system protection
  • Diaphragm carburetor

    EASY TO USE AND MAINTAIN
  • Easily accessible spark plug
  • Easy to drain and re-fill oil
  • No mixing of gas and oil

    EASY STARTING
  • Exhaust decompression system
  • Unique low inertia design

    EMISSIONS COMPLIANT
  • CARB and EPA certified
  • No catalyst necessary

    AVAILABLE OPTIONS
  • Special designs for horizontal and vertical applications available
Air CleanerSemi-dry
Bore X Stroke35 x 26 mm
CarburetorDiaphragm-type(overflow return)
ColorRed
Compression Ratio8.0:1
Crankshaft TypeStraight Shaft
Dimensions7.6" x 8.7" x 9.1"
Displacement25cc
Dry Weight6.8 lb(2.7 kg)
Engine TypeAir-cooled 4-stroke OHC
FuelUnleaded 86 octane or higher
Fuel Tank Capacity.61 qt(.58 l)
Governor SystemNA
Ignition SystemTransistorized Magneto
Lubrication SystemCrankcase pressure-driven
Model NameGX25NT-S3
Net Power Output*1.0 HP (.72 kW) @ 7,000 rpm
Net Torque0.74 lb-ft (1.0 Nm) @ 5,000 rpm
Oil Capacity2.7 oz(80cc)
Pto Shaft RotationCounterclockwise
Starting SystemRecoil
Honda  636680
Honda  637280
Honda  643640
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