Genuine Eaton Fuller transmission input shaft, Part Number 4301403 / FU4301403, as identified from the original Eaton Fuller packaging shown in the photos. This OEM transmission component features a helical gear, splined shaft, and engagement/synchronizer splines. The part is offered in the condition shown and has visible signs of prior use, including surface discoloration, oxidation/rust staining, and normal wear associated with a used transmission component. The original Eaton Fuller packaging is shown for part-number identification. This input shaft is associated with Eaton Fuller manual transmissions including the FS-5306A, FS-5406A, FS-6306A, and FS-6406A models. Ideal for transmission repair, rebuilding, restoration, or replacement when Eaton Fuller 4301403 / FU4301403 is the required part. Please carefully compare the part number, gear configuration, spline arrangement, dimensions, and photos with your existing component before purchasing to ensure proper fitment.
Specifications
- Brand: Eaton Fuller
- Manufacturer: Eaton
- Part Number: 4301403
- OEM/Box Part No.: FU4301403
- Part Type: Transmission Input Shaft
- Component: Input Shaft / Gear Assembly
- Gear Type: Helical Gear
- Shaft: Splined
- Material: Steel
Application
- Eaton Fuller FS-5306A
- Eaton Fuller FS-5406A
- Eaton Fuller FS-6306A
- Eaton Fuller FS-6406A














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