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Welcome to the Sears Motor Buggy Technical Information Page

This page contains technical information for the Sears Motor Buggy. Most of the information is presented in the following table, but some is presented on a separate pages for expanded clarity. Please let me know if you find any mistakes in the following data so that I can correct it.

If you have information that is not included here, please send it to me so that I may included it.

If there is information you need, but it is not here, and you think it makes since that it should be, please let me know and I will see if I can track it down.

Hope you enjoy it!

Additional Technical Information Pages

  • Mechanical Drawings - This page contains pages of mechanical drawings other Sears users have used to reproduce parts for the Sears.
  • Name Plate Information - This page contains information and research into the different tyle name plates used on the back of the Sears over the years.
  • Serial Numbers - This page contains serial number information and research. If yor are a Sears Owner, you can help sort this all out.
  • Striping Diagrams - This page contains striping diagrams other Sears users have used to stripe their cars. They are recorded from original cars.

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1908 - 1912 Sears Automobile Technical Information
Item 1908/1909 1910 1911 1912
Bore x Stroke
4 1/8 x 4
Carburetor Kingston 5-Ball Carburetor
Schebler Model D. CLICK HERE for carburetor setup instructions
Coil
All cars used a Noxon Coil. The coils had a card on them and that card is reproduced here. There is information about setting up the points HERE and HERE
ColorRich Dark Carmine Red OR Brewster Greeen chassis and wheels with Black body.
Cooling Air-cooled by two fans driven by belt and pully from crankshaft
Factory The initial run of Sears Motor Buggies were built in the Hercules Buggy plant in Evansville, Indiana. But by late 1909, the Sears Motor Car Works factory at the intersection of Harrison and Loomis streets in Chicago was ready, and operations commenced from there.
Front Axle The 1909 and 1910 front axle had a swoop up at the end. The 1911 and later front axle was of the straight type.
Horn
CLICK here for a picture of the horn used on Sears Automobiles. Thanks to Wayne Sutton for the photo.
Horsepower10 & 14 HP
14 HP
Lights - Head
C.T. Hamm Comet
Lights - Tail
C.T.Ham Vigilent Cold Blast
Lubricator/Oiler
I believe the Sears used a Kinsey 4-Pump Lubricator.
 CLICK HERE to see an ad showing a Kinsey 6-pump oilder.
Looks very similar to me.
Models No Specific Model Number. Two Different Cataloge Numbers
  • 21R 333 - Sears Motor Buggy
  • 21R 444 - Sears Motor Runabout
  • Model G
  • Model H
  • Model J
  • Model K
  • Model L
  • Model G
  • Model H
  • Model J
  • Model K
  • Model L
  • Model M - Enclosed
  • Model N - Truck
  • Model P - 4 Passenger
  • Model R - Truck
  • Model G
  • Model H
  • Model J
  • Model K
  • Model L
  • Model M - Enclosed
  • Model N - Truck
  • Model P - 4 Passenger
  • Model R - Truck
  • Model X - Truck
Price
21R 333 - $395.00
21R 444 - $370.00
Model G - $370.00
Model H - $395.00
Model J - $410.00
Model K - $475.00
Model L - $495.00
Model G - $325.00
Model H - $365.00
Model J - $375.00
Model K - $435.00
Model L - $475.00
Model M - $485.00
Model N - $425.00
Model P - $445.00
Model R - $375.00
Model G - $325.00???
Model H - $365.00???
Model J - $375.00???
Model K - $435.00???
Model L - $475.00???
Model M - $485.00???
Model N - $425.00???
Model P - $445.00???
Model R - $375.00???
Model X - $???.00
Production numbers
Approximately 600 according to Sears.
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Serial Numbers
CLICK HERE to go to the Serial Number Page
Tire Size
  • 36 X 1 3/8 inch solid rubber tires
  • 38 X 2 inch Cushion rubber tires and
  • 34 X 3 inch Pneumatic tires
Top Speed
25 MPH
Transmision
Friction Transmision
Wheel base
72 inches (87 inches for the 4 passenger Model P and the Truck models)
Weight
About 1000 lbs.

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