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GENERAL INFORMATION
BRIGGS & STRATTON DAIHATSU NUMERICAL NUMBER SYSTEM
All Briggs & Stratton Daihatsu engines have a unique numerical designation system. Each engine is identified by a
Model, Type and Code/Serial number. Example: Model Type Code/Serial
432447 0125 01 020521145
This chart explains the numerical model designation system. It is possible to determine most of the important mechani-
cal features of the engine by merely knowing the model number. Here is how it works.
FIRST DIGIT
AFTER DISPLACEMENT
SECOND DIGIT
AFTER DISPLACEMENT
THIRD DIGIT
AFTER DISPLACEMENT
FOURTH DIGIT
AFTER DISPLACEMENT
CUBIC INCH
DISPLACEMENT
BASIC
DESIGN SERIES
CRANKSHAFT,
CARBURETOR,
GOVERNOR
PTO BEARING,
REDUCTION GEAR,
AUXILIARY DRIVE,
LUBRICATION TYPE OF STARTER
ă6
ă8
ă9
10
11
12
13
16
17
18
19
22
23
24
25
26
28
29
30
32
35
38
40
42
43
44
46
52
58
0 - Gas-Mechanical
1 - Natural Gas-Mechanical
2 - Diesel-Mechanical
3 - Gas-Electronic
4 - Natural Gas-Electronic
5 - Diesel-Electronic
6
7
8 - Diesel - Turbo
9
A - Diesel Turbo
B to Z
0 - Horizontal Shaft
Diesel Electronic or
Mechanical Governor
1 - Horizontal Shaft
VacuĆJet Carburetor
Pneumatic Governor
2 - Horizontal Shaft
PulsaĆJet Carburetor
Pneumatic or Mechanical
Governor
3 - Horizontal Shaft
FloĆJet Carburetor
Pneumatic Governor
4 - Horizontal Shaft
FloĆJet Carburetor
Electronic or
Mechanical Governor
5 - Vertical Shaft
VacuĆJet Carburetor
Pneumatic or Mechanical
Governor
6 - Vertical Shaft
7 - Vertical Shaft
FloĆJet Carburetor
Pneumatic or Mechanical
Governor
8 - Vertical Shaft
FloĆJet Carburetor
Mechanical Governor
9 - Vertical Shaft
PulsaĆJet Carburetor
Pneumatic or Mechanical
Governor
0 - Plain Bearing/DU
NonĆFlange Mount
1 - Plain Bearing
Flange Mounting
2 - Sleeve Bearing
Flange Mounting
Splash Lube
3 - Ball Bearing
Flange Mounting
Splash Lube
4 - Flange Mounting
Pressure Lubrication on
Horizontal Shaft
5 - Plain Bearing
Gear Reduction
(6 to 1) CW Rotation
Flange Mounting
6 - Plain Bearing
Gear Reduction
(6 to 1) CCW Rotation
7 - Plain Bearing
Pressure Lubrication on
Vertical Shaft
8 - Plain Bearing
Auxiliary Drive (PTO)
Perpendicular to Crankshaft
9 - Plain Bearing
Auxiliary Drive
Parallel to Crankshaft
0 - Without Starter
1 - Rope Starter
2 - Rewind Starter
3 - Electric Starter Only
120 Volt Gear Drive
4 - Electric Starter/Generator
12 Volt Belt Drive
5 - Electric Starter Only
12 Volt Gear Drive
6 - Alternator Only
7 - Electric Starter
12 Volt Gear Drive
With Alternator
8 - Vertical Pull Starter or
Side Pull Starter
The type number identifies certain unique features such as the crankshaft or governor spring used on an engine.
The code/serial number identifies the assembly date of the engine and serial number. In some instances it is neces-
sary to know the code/serial number as well as the model and type number when performing adjustments, repairs or
ordering replacement parts for an engine. Here is how it works.
Example: 990521150
A. The first two digits, 02, indicate the calendar
year, 2002.
B. The second two digits, 05, indicate the calen-
dar month, May.
C. The third two digits, 21, indicate the calendar
month day.
D. The last three digits, 145, indicate the serial
number.