Case IH Farmall 85C to Farmall 115U specifications

The 105C engine code follows the transmission and PIN

The original North American service manual divides the Farmall 105C into separate mechanical/power-shuttle and Hi-Lo configurations. Its product-to-engine table assigns different complete engine codes to those groups, even with the same cab choice. The name on the hood is therefore insufficient for ordering an engine-specific part.

Read the PIN pattern alongside the engine plate. The manual's transmission boundary is built into that identifier. Matching displacement alone misses this distinction, while choosing a book solely because its cover says “105C” can send a parts search into the wrong engine application.

The documented codes below identify the manual's particular North American configurations.

90C, 100C and 110C implement flow is separate from steering

The North American utility C brochure describes separate engine-driven pumps and identifies the larger C models' implement flow in its working-features text. That resolves the doubled decimal in the earlier reference entry. The steering circuit is separate; its flow should not be added to the implement figure when judging what a rear hydraulic attachment can receive.

The same edition distinguishes factory loader preparation from a bare tractor. Mounting brackets, joystick, valve, hoses and grille guard form its loader-ready package. A used tractor can have missing pieces.

Check the supplied mounts and controls against that package instead of treating an unmounted loader as a complete installation. The cab's opening roof panel is also an option, which matters when comparing visibility for elevated loader work.

Powerclutch, Powershuttle and Powershift describe different functions

The UK Farmall C brochure offers the larger 85C–115C models a two-speed Powershift, direction-changing Powershuttle and a Powerclutch function that disengages drive without the foot clutch. Those names are not interchangeable. A power shuttle does not, by itself, identify the two-speed option.

Its engine controller also stores separate speed settings for work and headlands. Economy PTO operation is another choice: it reaches the required shaft speed at a lower engine speed for a lighter demand. Match the actual PTO package and transmission controls when comparing one of these European tractors with the North American columns; the shared model name does not establish identical options.

The battery reference says twelve volts

Titan's CNH battery listing names the early 105C and 115C applications and specifies a twelve-volt battery. The earlier “121” entry is a transcription error. The offered part also has a defined case, terminal orientation and hold-down pattern; nominal voltage alone does not establish physical fit.

Check those details and the tractor's serial application before ordering a replacement.