The AGCO Fella FEL121786 Knuckle Joint is a genuine OEM replacement part designed for Fella TS 400 series hay rakes. This critical component ensures proper articulation and movement within the machinery, maintaining optimal performance and durability. Weighing approximately 0.23 kg, this knuckle joint is engineered to meet original factory specifications for a precise fit and long service life on models including TS 400 DN, TS 400 DN-K, TS 400 HYDRO, TS 400 HYDRO-DN-K, TS 400 HYDRO-DN-K-K, and TS 400 HYDRO-K.