Engine/O.P.E. Model, Type (Spec.) and Code (Serial or D.O.M) numbers.


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. You cannot get parts for any engine or power equipment if you do not specify at least the model number. Below, I will explain what most of theses numbers mean and where they can be found.

This first section explains the Tecumseh Model, Spec, and Serial (D.O.M) numbers.

OHHOverhead Valve Horizontal
OHMOverhead Valve Horizontal Medium Frame
OHSKOverhead Valve Horizontal Snow King
OVMOverhead Valve Vertical Medium Frame
OVRMOverhead Valve Vertical Rotary Mower
OVXLOverhead Valve Vertical Medium Frame Xtra-Life
OHVOverhead Valve Vertical

VVERTICAL CRANKSHAFT
LAVLIGHTWEIGHT ALUMINUM VERTICAL
VMVERTICAL MEDIUM FRAME
TVMTECUMSEH VERTICAL MEDIUM FRAME
VHVERTICAL HEAVY DUTY
TVSTECUMSEH VERTICAL STYLED
TNTTORO ‘N TECUMSEH
ECVEXCULSIVE CRAFTSMAN VERTICAL
TVXLTECUMSEH VERTICAL EXTRA LIFE

HHORIZONTAL CRANKSHAFT
HSHORIZONTAL SMALL FRAME
HSSKHORIZONTAL SMALL FRAME SNOW KING
HMHORIZONTAL MEDIUM FRAME
HMSKHORIZONTAL MEDIUM FRAME SNOW KING
HHMHORIZONTAL HEAVY DUTY MEDIUM FRAME
HHHORIZONTAL HEAVY DUTY
ECH EXCLUSIVE CRAFTSMAN HORIZONTAL
HSKHORIZONTAL SNOW KING

The following two tables contain the last few numbers used in the model number. The first table contains numbers that describe the engine’s horsepower. The second table contains numbers that describe the displacement of the piston. Horsepower interpretations are provided but are not part of the model number.

252.5 HP
303 HP
404 HP
505 HP
606 HP
707 HP
808 HP
10010 HP
75= 7.5 ci3.0 HP
90= 9.0 ci3.5 HP
100-105= 10-10.5 ci4.0 HP
115-125= 11.5-12.5 ci5.0 HP
140= 14 ci6.0 HP
170= 17.0 ci7.0 HP
195= 19.5 ci8.0 HP
220= 22.0 ci10.0 HP

EXAMPLE OF MODEL NUMBER:

TVS90—-> Tecumseh Vertical Styled. 9.0 ci displacement.
H60——-> Horizontal Crankshaft. 6.0 horsepower

EXAMPLE OF SPECIFICATION NUMBER. (SECOND SET OF NUMBERS)

43388F—> Used to allocate proper parts for this engine.

EXAMPLE OF SERIAL NUMBER. (THIRD SET OF NUMBERS)

9105B—-> 9= the year of manufacture–1989
105= the calendar day the engine was manufactured–April 15
B= the line and shift the engine came from.

The numbers will look like this on the engine’s blower housing=

TVS90 43388F SER 9105B

or like this

H60 67523H SER 2243R



Briggs and Stratton

Now Briggs and Stratton, on the other hand, uses an entirely different system. Their model numbers describes the entire engine. Everything from the type of carburetor and governor to the starter and charging system.

6 1,2,3,4 0-Horizontal Shaft, Diaphragm Carburtor, Pneumatic Governor. 0-Plain Bearing/DU, Non-Flange Mount. 0-No Starter with engine.
8,9,10,11,12,13 5,6,7,8 1-Horizontal Shaft, Vacu-Jet Carburetor, Pneumatic Governor. 1-Plain Bearing, Flange Mounting. 1-Rope Starter.
16,17,18,19 9,A,B,C 2-Horizontal Shaft, Pulsa-Jet Carburetor, Pneumatic or Mechanic Governor. 2-Sleeve Bearing, Flange Mounting, Splash Lube. 2-Rewind Starter.
22,23,24,25,26 D,E,F,G 3-Horizontal Shaft, Flo-Jet Carburetor, Pneumatic Governor. 3-Ball Bearing, Flange Mounting, Splash Lube. 3-Electric Starter–120 Volts, Gear driven.
28,29,30 H,I,J,K 4-Horizontal Shaft, Flo-Jet Carburetor, Mechanical Governor. 4-Ball Bearing, Flange Mounting, Presure Lube on Horizontal Shaft Engines. 4-Electric Starter/Generator–12 Volt, Belt Driven.
32 L,M,N,O 5-Vertical Shaft, Vacu-Jet Carburetor, Pneumatic or Mechanical Governor. 5-Plain Bearing, Gear Reduction (6 to 1) CW Rotation, Flange mounting. 5-Electric Starter–12 Volts, Gear Driven
35 P,Q,R,S 6-Vertical Shaft. 6-Plain Bearing, Gear Reduction (6 to 1) CCW Rotation 6-Alternator Only
40 T,U,V,W 7-Vertical Shaft, Flo-Jet Carburetor, Pneumatic or Mechanical Governor. 7-Plain Bearing, Pressure Lube on Vertical Shaft Engines. 7-Electric Starter–12 Volts, Gear Driven, Alternator.
42 X,Y,Z 8-Vertical Shaft, Flo-Jet Carburetor, Mechanical Governor. 8-Plain Bearing, Auxiliary Drive–Perpendicular to Crankshaft. 8-Vertical or Side Pull Starter.
9-Vertical Shaft, Pulsa-Jet Carburetor, Pneumatic or Mechanical Governor. 9-Plain Bearing, Auxiliary Drive–Parallel to Crankshaft.

The numbers in the first column represent the engine size, in cubic inches. The second column represents the design series. This number is the first digit after the engine size (displacement). The third column represents the position of the crankshaft, the type of governor and type of carburetor. (Second number after displacement). The fourth column represents the PTO bearing, auxiliary drive and reduction gear. (Third number after displacement.) And the fifth column indentifies the type of starter and charging system. (Fourth number after displacment.)

EXAMPLE OF MODEL NUMBER:


12H802—-> 12 CUBIC INCHES DISPLACMENT, DESIGN SERIES H, 8= VERTICAL SHAFT, FLO-JET CARBURETOR, MECHANICAL GOVERNOR, 0= PLAIN BEARING/DU-NON FLANGE MOUNT, 2= REWIND STARTER.

EXAMPLE OF TYPE NUMBER:


2314-19—-> INDENTIFIES THE DECALS, GOVERNED SPEED, OEM ENGINE IS USED ON AND COLOR OF PAINT.

EXAMPLE OF CODE NUMBER:


99032101—-> 99 IS THE LAST TWO DIGITS IN THE MANUFACTURING YEAR (1999). 03 IS THE MONTH, (MARCH). 21 IS THE DAY IN THAT MONTH. 01 IS THE MANUFACTURING PLANT.

The numbers will look like this on the engine shroud:

12H802 2314-19 99032101


Home | Questions?

8 responses to “Models, Types and Codes”

  1. Scott Chaney says:

    i just bought a troy-bilt (pony) tiller at auction.the engine is bad and i need a replacement for it.the serial #is P78906 on the tiller.the engine is a 5hp brigs and stratten horizontal shaft with a extra long cam shaft to provide a reverse to the tiller.i have this engine taken apart.the only numbers i can find on the block is the # 13 inside the valve spring area and there is a letter M behind the flywheel/magneto.there is the lettering on the crank itself and that is QHS.THAT IS THE ONLY #rs on the block

  2. Joe puchel says:

    Hello I have a older Toro 8-25 with Tecumseh motor. I don’t have the motor out. Can you tell me what shaft size is of this engine it’s a TVXL 195. I also have a 10 horsepower Briggs Stratton motor from an older craftsman and would like to know if this would work in my toro 8-25. Thank you for any help. Joe

  3. chaka zulu says:

    I was directed to you for help. I have a Craftsman snow thrower as follows:

    Craftsman snow thrower, model number: 536-90510HC2
    Craftsman engine, model no. 143626292; Serial No. 2257R
    Tecumseh engine model No. H70-130168A
    7 Horsepower, 15 cubic inches
    Tecumseh 120 Volt Electric Snow-blower Starter (motor) Kit, part #33328D.
    Crankshaft is tapered, keyed, and threaded. Part #32680A

    I would like to re-engine my blower. I need the following information for the above engine:

    1. Crankshaft diameter

    2. The distance from from the engine base to the crankshaft center line.

    3. The distance from the oil seal/cover’s mounting face to the end of the crankshaft.

    4. Whether the crankshaft is tapered, keyed, and/or threaded.

    5. The engine’s base mounting plate (Tecumseh part #29538) dimensions (height, width, length) and bolt hole spacing.

  4. Mike says:

    hello this briggs number system with family numbers is the stupidest thing I ever seen !

  5. I have an Tecumseh engine with a model # of HS40-55282B and a serial # of 0180 02068. I’m guessing it is a 4hp according to the diagram above but the serial number doesn’t look the same as above. Can anyone help me out and tell me the year of the engine? It belongs in a Rupp mini bike.

    Thank you
    Cory

  6. Tracey Hopwood says:

    Trying to get some information for a small engine, not really sure what brand it is. It has “solid state” on the cover, I was able to get the following numbers off the top of the cover.

    HH160-170028 SER 6014E It is in a ARGO 6 wheel amphibious vehicle, I was able to make it run with some starting fluid after I took the starter off and repaired it.

    From what I know I will be needing a rebuild kit for the carb and either a rebuild kit for the fuel pump or a new fuel pump. Fuel and air filters a new plug.

    If you are able to source the parts I’m good with that, not sure if you do that on this site or not. For shipping information I’m in zip 23175

  7. Tim Coleman says:

    I have purchased a Huskee log splitter central tractor numbers model LS 400 1211 SKU number 215-3053 the number on the engine is 24702 312303 90040257 I think this is a Tecumseh engine I need carburetor parts not sure what type engine this is to buy parts for could you tell me

  8. Kris Hillis says:

    I just bought a craftsman 10/32 snow blower. I’m guessing it a 10hp tecumseh snow king but the only numbers I’ve found on the engine is on the pull starter cover and they read 143 756202 Ser 5298D
    The Craftsman model # C950-52379-5 Serial 18076 58 Made in Canada
    Thanks for any help

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