Torx TX420

Torx TX420The Torx TX420 is a 420 cc (25.63 cu-in) single-cylinder air-cooled 4-stroke internal combustion general-purpose gasoline engine with a horizontal PTO shaft.

The Torx TX420 engine has a single-cylinder with a horizontal shaft, an overhead valve (OHV) design, horizontal carburetor, and recoil starter.

A 90.0 mm (3.54 in) cylinder bore and 66.0 mm (2.6 in) piston stroke give the motor a total of 420 cc (25.63 cu-in) of displacement. Compression ratio rating is 8.5:1.

The TX420 produced 13.0 PS (9.5 kW; 13.0 HP) at 3,600 rpm of maximum horsepower and 22.0 N·m (2.2 kg·m, 16.2 ft·lb) at 2,700 rpm of maximum torque.

General information

Engine Specifications
ModelTX420
Type4-stroke, OHV, single cylinder
Displacement390 cm 3 (23.80 cu-in)
Max. horsepower15.0 PS (11.0 kW; 15.0 HP) at 3,600 rpm
Max. torque (crank PTO)23.0 N·m (2.3 kg·m, 17 ft·lb) at 2,750 rpm
CarburetorHorizontal type
Cooling systemForced-air
Ignition system
Lubricating systemSplash
Starting systemRecoil starter
Stoping systemIgnition primary circuit ground
Fuel usedUnleaded gasoline (octane number 86 or higher)
Fuel tank capacity6.5 L (1.72 US. gal. 1.43 Imp. gal.)
PTO shaft rotationCounterclockwise (from PTO shaft side)

Service Information

Oil system
Oil type4-stroke or an equivalent (SJ)
Recommended oilSAE 10W-30
Oil capacity1.1 L (1.16 US. qt, 0.97 Imp. qt.)
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We try to use verified sources and official documentation, however, differences between sources or errors in entering information may occur. We do not provide advice on technical issues related to the engines operation or repair. We do not recommend using provided information for engines repairing engines or spare parts ordering, use only official service manuals and spare-parts catalogs.

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