The Eaton Fuller Range Section Assembly, part number S-1778 or S1778, is a genuine OEM range section for Eaton Fuller manual transmissions. Parts manual records confirm this assembly is listed in the RTX-12709A, RTX-12709B, RTX-12709H, and RTXF-12709H transmission models. The range section houses the high-low range gear set at the rear of the transmission, enabling the split between high and low gear ranges across the gearbox. Cross-reference number HFS-1778 also applies to this part. Call us to confirm proper fit for your specific transmission build.
Features
Genuine Eaton Fuller OEM range section assembly
Part number S-1778 or S1778; also referenced as HFS-1778
Confirmed fitment in RTX-12709A, RTX-12709B, RTX-12709H, and RTXF-12709H transmissions
Sold individually (each) by Pro Gear and Transmission
