The third column represents the position of the crankshaft, the type of governor and type of carburetor.

This number is the first digit after the engine size (displacement). The second column represents the design series. The numbers in the first column represent the engine size, in cubic inches. Everything from the type of carburetor and governor to the starter and charging system.Ġ-Horizontal Shaft, Diaphragm Carburtor, Pneumatic Governor.ġ-Horizontal Shaft, Vacu-Jet Carburetor, Pneumatic Governor.Ģ-Horizontal Shaft, Pulsa-Jet Carburetor, Pneumatic or Mechanic Governor.Ģ-Sleeve Bearing, Flange Mounting, Splash Lube.ģ-Horizontal Shaft, Flo-Jet Carburetor, Pneumatic Governor.ģ-Ball Bearing, Flange Mounting, Splash Lube.ģ-Electric Starter–120 Volts, Gear driven.Ĥ-Horizontal Shaft, Flo-Jet Carburetor, Mechanical Governor.Ĥ-Ball Bearing, Flange Mounting, Presure Lube on Horizontal Shaft Engines.Ĥ-Electric Starter/Generator–12 Volt, Belt Driven.ĥ-Vertical Shaft, Vacu-Jet Carburetor, Pneumatic or Mechanical Governor.ĥ-Plain Bearing, Gear Reduction (6 to 1) CW Rotation, Flange mounting.Ħ-Plain Bearing, Gear Reduction (6 to 1) CCW Rotationħ-Vertical Shaft, Flo-Jet Carburetor, Pneumatic or Mechanical Governor.ħ-Plain Bearing, Pressure Lube on Vertical Shaft Engines.ħ-Electric Starter–12 Volts, Gear Driven, Alternator.Ĩ-Vertical Shaft, Flo-Jet Carburetor, Mechanical Governor.Ĩ-Plain Bearing, Auxiliary Drive–Perpendicular to Crankshaft.ĩ-Vertical Shaft, Pulsa-Jet Carburetor, Pneumatic or Mechanical Governor.ĩ-Plain Bearing, Auxiliary Drive–Parallel to Crankshaft. Their model numbers describes the entire engine. Now Briggs and Stratton, on the other hand, uses an entirely different system. The numbers will look like this on the engine’s blower housing= TVS90 43388F SER 9105B or like this H60 67523H SER 2243R (THIRD SET OF NUMBERS)ĩ105B-> 9= the year of manufacture–198 9 105= the calendar day the engine was manufactured–April 15 B= the line and shift the engine came from. (SECOND SET OF NUMBERS)Ĥ3388F-> Used to allocate proper parts for this engine. 6.0 horsepower EXAMPLE OF SPECIFICATION NUMBER. Horsepower interpretations are provided but are not part of the model number. The second table contains numbers that describe the displacement of the piston.

The first table contains numbers that describe the engine’s horsepower. The following two tables contain the last few numbers used in the model number. Overhead Valve Vertical Medium Frame Xtra-Life This first section explains the Tecumseh Model, Spec, and Serial (D.O.M) numbers. Below, I will explain what most of theses numbers mean and where they can be found. You cannot get parts for any engine or power equipment if you do not specify at least the model number. Model, Type (Spec.) and Code (Serial or D.O.M) numbers are found on every single engine or O.P.E in the U.S.A. Model, Type (Spec.) and Code (Serial or D.O.M) numbers.

Craftsman serial number decoder