Case - IH Farmall A

Additional Notes

• The Case IH Farmall A cooling system capacities fall into two distinct groups across the lineup. The Farmall 55A, 65A, and 75A each hold 9 liters, while the Farmall 85A, 95A, 105A, and 115A each hold 14 liters as a base figure.
• The 14-liter base capacity on the Farmall 85A, 95A, 105A, and 115A increases to 16 liters when a cabin is fitted. The additional 2 liters accounts for the coolant volume routed through the cabin heating circuit.
• A cabin heating system draws coolant from the engine circuit to warm the cab interior, which is why cab-equipped configurations carry a higher total coolant volume than open-station versions of the same model.
• The Farmall 85A, 95A, 105A, and 115A share an identical coolant change interval of 3600 hours under normal use conditions. At typical agricultural operating rates, 3600 hours represents a multi-year service cycle.
• The Farmall 55A, 65A, and 75A carry a dual-condition change interval of 1200 hours or 24 months, whichever comes first. The time-based limit of 24 months applies regardless of how many hours have accumulated, reflecting the degradation of coolant additives over time even in low-use machines.
• The 3600-hour interval on the larger Farmall A models is three times longer than the 1200-hour interval on the smaller models. This difference corresponds to the two groups having different cooling system capacities and, likely, different coolant formulations with varying additive service lives.
• The Farmall 55A, 65A, and 75A share identical cooling system specifications, with a 9-liter capacity and a 1200-hour or 24-month change interval applying equally across all three models starting from 2019.