84078856 Variator Half Sheave For Case New Holland

Part number 84078856 is the Variator Pulley Disc (Moving Half Sheave) used primarily in the cleaning fan drive system of New Holland and Case IH combine harvesters.

Role: It acts as the moving half-sheave of the variator pulley. By shifting back and forth, it adjusts the belt’s position to regulate the cleaning fan’s speed, controlling the volume of air pushed into the cleaning shoe.

Dimensions: 35 mm Inside Diameter (ID) × 248 mm Outside Diameter (OD) × 89 mm Length (L).

Cross-Reference Parts: 84818348, 84097360, or 89502399.

This disc fits a broad range of high-capacity combines:

New Holland CR Series: CR920, CR940, CR960, CR970, CR980

New Holland CX Series: CX840, CX860, CX880, CX8070, CX8080, CX8090 (including A3 and A4 regional sub-variants)

84078856 Variator Half Sheave For Case New Holland

84078856 Variator Half Sheave