Cub Cadet 123 Engine


Cub Cadet 123 tractor photo
1966 - 1967
1X2/1X3 Series
Garden tractor
Series map:
122
123
12.0hp
12.0hp
Engine Detail
Kohler K301AS
gasoline
1-cylinder
air-cooled horizontal-shaft
Displacement476 cc
29.07 ci
Bore/Stroke3.385x3.25 inches
86 x 83 mm
Power (gross)12 hp
8.9 kW
Compression6:1
Rated RPM3600
Starter volts12
Oil capacity1.5 qts
1.4 L
Sparkplug gap0.025 inches
0.635 mm
Point gap0.020 inches
0.508 mm
Intake valve clearance0.010 inches
0.254 mm
Exhaust valve clearance0.020 inches
0.508 mm
Page information
Peter Easterlund - owner of TractorData.com
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Peter Easterlund - owner/author
Email: Peter@TractorData.com
Updated on December 2, 2025
©2000-2025 - TractorData.com®. Notice: Every attempt is made to ensure the data listed is accurate. However, differences between sources, incomplete listings, errors, and data entry mistakes do occur. Consult official literature from the manufacturer before attempting any service or repair.