1967-1969 Cub Cadet Tractor 72/104/105/124/125 Service Manual
Troubleshooting, parts diagrams, and service data for Kohler K-161S, K-241AS, and K-301AS engines. Complete transmission, differential, clutch, and hydrostatic drive procedures. PN GSS-1398
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Sample pages from the 1967-1969 Cub Cadet Tractor 72/104/105/124/125 Service Manual manual
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Cub Cadet Models Covered & Key Technical Specifications
Models: International Cub Cadet 72, 104, 105, 124, 125
Sub-models / Variants: Gear Drive (72, 104, 124), Hydrostatic Transmission (105, 125)
Build Years: 1967–1969
Technical Data:
- Engine (Model 72): Kohler K-161S/T, 16.23 cu. in. displacement, 7.0 hp @ 3600 rpm
- Engine (Models 104/105): Kohler K-241AS, 23.9 cu. in. displacement, 10 hp @ 3600 rpm
- Engine (Models 124/125): Kohler K-301AS, 29.1 cu. in. displacement, 12 hp @ 3600 rpm
- Compression Pressure: 110–120 psi
- Spark Plug Gap: 0.025 inch
- Fuel Tank Capacity: 3.5 gallons
- Clutch (Standard): Single dry disc, spring loaded, 4.5 inch diameter
- Transmission (Gear Drive): Selective sliding spur gears, 3 forward / 1 reverse speeds
- Head Bolt Torque (K-161): 200 in-lbs
- Head Bolt Torque (K-241/K-301): 420 in-lbs
- Spark Plug Torque: 27 ft-lbs
Cub Cadet Manual Features & Content Preview
1967–1969 International Cub Cadet 72–125 Service Documentation
- Covers 1967–1969 International Cub Cadet models 72, 104, 105, 124, and 125, featuring both gear-drive and hydrostatic transmission configurations
- Official International Harvester GSS-1398 Blue Ribbon Service Manual, original edition dated 1967
- Contains 78 high-resolution technical illustrations, exploded views, and schematic wiring diagrams for engine, chassis, and drivetrain components
- Delivered as a direct download the moment payment clears
- Indexed PDF search covers every chapter and appendix
- Stored against your account so you can retrieve it after a hard-drive loss
- Full-text search finds any part number in seconds
- Suitable for printing individual sections for shop-floor use
- This official publication provides the specific internal clearances, torque settings, and adjustment procedures required for factory-level maintenance of the Cub Cadet tractor series
Engine and Chassis Walkthrough
This 121-page International Cub Cadet technical publication details the maintenance of the Kohler K-161, K-241, and K-301 power plants used across the 72, 104, 105, 124, and 125 tractors. The document outlines the procedures for engine removal, disassembly, and crankshaft inspection, alongside specifications for piston ring gaps, valve clearances, and cylinder bore tolerances. It further documents the hydrostatic transmission principles specific to the 105 and 125 models, covering charge pump service and relief valve adjustments.
The chassis section describes the steering assembly geometry, including cam and lever ball-joint adjustments and front axle construction. Detailed diagrams depict the gear-drive transmission internals, reduction drive housings, and brake disc service requirements. The content provides clear parameters for clutch spring tension and pedal adjustment, ensuring the mechanical integrity of the shifting and braking systems.
Specification Highlights
Standard torque for K-161 head bolts is documented at 200 in-lbs in the engine assembly section. Intake valve clearance for the Kohler K-161S is specified at 0.006–0.008 inches cold. The hydrostatic charge pump relief valve spring test length is documented at 0.525 inches.
An official 121-page International Harvester GSS-1398 workshop manual covering the 1967–1969 International Cub Cadet 72, 104, 105, 124, and 125 tractors, documenting engine, chassis, hydrostatic drive, and electrical specifications for the entire production series.
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