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This is an example of a basic Briggs & Stratton engine number.
Model 303447 Type 1234‐01 Code 01061201
A
Cubic Inch
Displacement
6
8
9
10
11
12
13
16
17
18
19
22
23
24
25
26
28
29
30
32
35
40
42
46
B
Basic Design
Series
0-9
A-Z
C
Crankshaft, Carburetor,
Governor
0 - Horizontal Shaft, Diaphragm
Carburetor, Pneumatic Governor
1 - Horizontal Shaft, Vacu-Jet
Carburetor, Pneumatic Governor
2 - Horizontal Shaft, Pulsa-Jet
Carburetor, Pneumatic or
Mechanical Governor
3 - Horizontal Shaft, Flo-Jet
Carburetor, Pneumatic Governor
4 - Horizontal Shaft, Vacu-Jet
Carburetor, Mechanical Governor
5 - Vertical Shaft, Vacu-Jet
Carburetor, Pneumatic or
Mechanical Governor
6 - Vertical Shaft
7 - Vertical Shaft, Flo-Jet
Carburetor, Pneumatic or
Mechanical Governor
8 - Vertical Shaft, Flo-Jet
Carburetor, Mechanical Governor
9 - Vertical Shaft, Pulsa-Jet
Carburetor, Pneumatic or
Mechanical Governor
D
PTO Bearing, Reduction Gear,
Auxiliary Drive, Lubrication
0 - Plain Bearing / DU, Non-
Flange Mount
1 - Plain Bearing, Flange
Mounting
2 - Sleeve Bearing
Flange, Mounting, Splash Lube
3 - Ball Bearing, Flange
Mounting, Splash Lube
4 - Ball Bearing, 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), CW Rotation, Flange
Mounting
7 - Plain Bearing, Pressure
Lubrication on Vertical Shaft
8 - Plain Bearing, Auxiliary Drive
(PTO) Perpendicular to
Crankshaft
9 - Plain Bearing, Auxiliary Drive
(PTO) Parallel to Crankshaft
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